Consulta: subjectFacets:"Life cycle"
Registros recuperados: 82
Data/hora: 05/06/2024 07:20:44

Morfología, Biología y comportamiento de Aceris tulipae K.(Acari: Eriophyidae) en Ajo Allium sativum L.
Provedor de dados: 32
Autores: Acuña Soto, Jesús Alberto.
En este trabajo se abordan aspectos de morfología externa, biología y comportamiento de Aceria  tulipae,  colectada en bulbos de ajo provenientes de bodegas de distintos productores del Estado de  Guanajuato, México, durante el ciclo 2004-2005; los ácaros se montaron en líquido de Hoyer para  su identificación. Para la morfometría, se analizaron las fotografías tomadas de los ácaros  montados mediante Microscopía de Contraste de Fases. Para los estudios morfológicos se  procesaron muestras de acuerdo con las técnicas de microscopía electrónica de barrido; así mismo,  se realizaron esquemas de la especie mediante dibujos vectoriales. Para obtener el ciclo biológico  se colocaron hembras ovígeras en pedazos de hoja, y para el comportamiento las observaciones...
Tipo: Tesis
Palavras-chave: Ajo; Guanajuato; Aceria tulipae; Morfología; Ciclo biológico; Maestría; Entomología y Acarología; Garlic; Guanajuato; Aceria tulipae; Morphology; Life cycle.
Ano: 2007
URL: http://hdl.handle.net/10521/1306

Compared nymphal development of Tingis americana (Hemiptera, Tingidae) in two Handroanthus species (Bignoniaceae) and reproductive parameters in seedlings of Handroanthus heptaphyllus
Provedor de dados: 76
Autores: Moreira,Daiane C.; Redaelli,Luiza R.; Guidoti,Marcus; Barcellos,Aline.
Nymphs and adults of Tingis americana Drake, 1922 were found feeding on leaves of Handroanthus heptaphyllus (Vell.) Mattos and Handroanthus chrysotrichus (Mart. ex A. DC.) Mattos in the Botanic Garden, Porto Alegre, state of Rio Grande do Sul, Brazil. This is the first record of T. americana on these host plants and in the southern Brazil. We aimed to compare the nymphal development on both hosts and to analyze the reproductive parameters on H. heptaphyllus (25 ± 1ºC; 60 ± 10% RH; 16 h photophase). The mean nymphal period (days) was shorter in individuals reared on H. heptaphyllus (12.69 ± 0.076) than on H. chrysotrichus (19.11 ± 0.208) (P &lt; 0.0001), however, nymph viability was similar. On H. heptaphyllus, the mean embryonic period lasted 12.32 ± 0.274...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biology; Life cycle; Handroanthus chrysotrichus; Lace bug.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000200015

Life history, biomass and production of Coronatella rectangula (Branchiopoda, Anomopoda, Chydoridae) from Minas Gerais
Provedor de dados: 76
Autores: Viti,Thais; Wisniewski,Célio; Orlando,Tereza Cristina; Santos-Wisniewski,Maria José dos.
Species of Chydoridae provide the main diversity of the Cladocera. These organisms have been the subject of many studies; some dealing with their role in energy flow in aquatic ecosystems, since they inhabit the littoral region of water bodies which undergo the first impacts from anthropic activities. The aim of this study is to increase knowledge about the life cycle of Coronatella rectangula (Sars, 1861), a species found in several water bodies in the state of Minas Gerais, Brazil. The life cycle was determined by the culture of parthenogenetic females under controlled conditions in the laboratory. Experimental cultures were maintained in growth chambers at a constant temperature of 23.6(±0.5)ºC, through a 12 h light/12 h dark photoperiod. The organisms...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life cycle; Cladocera; Littoral region; Phytophilous organisms.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000200005

Efeitos de diferentes dietas para a criação da Helicoverpa armigera.
Provedor de dados: 14
Autores: BILCK, D. J.; VIEIRA, M. C. de S.; SILVA, P. G.; VIEIRA, E. C. de S.; AVILA, C. J.
bitstream/item/189863/1/ORAL7.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Plant Prague; Life cycle; Caterpillar; Praga de Planta; Ciclo de Vida; Lagarta; Helicoverpa armigera; Insects; Entomology.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103178

Dispersion larvaire et cycle de vie dans les environnements hydrothermaux profonds : le cas de Rimicaris exoculata et d'espèces proches
Provedor de dados: 5
Autores: Hernandez Avila, Ivan.
Deep-water hydrothermal vent host high-biomass communities based on chemoautotrophy supported by the metabolic activity of free-living and symbiotic bacteria associated to invertebrates, especially megafauna. Knowledge on the mechanisms of dispersal and the life cycle of vent species is essential to our understanding of the vent communities in terms of distribution, structure and temporal variation. In this study, I present some advances regarding the dispersal and life cycle of a dominant species of the Mid-Atlantic Ridge (MAR) vent ecosystems, the alvinocaridid shrimp Rimicaris exoculata, and other related species. The methodological approaches applied include morphological descriptions of larvae, analysis of population biology and reproduction, and...
Tipo: Text
Palavras-chave: Sources hydrothermales profondes; Cycle de vie; Structure de population; Symbiose; Crevettes Alvinocarididae; Deep-water hydrothermal vents; Life cycle; Population structure; Reproduction; Dispersal; Symbiosis; Speciation.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00498/60927/64321.pdf

The formation of the twin resting cysts in the dinoflagellate Dissodinium pseudolunula, a parasite of copepod eggs
Provedor de dados: 5
Autores: Gomez, Fernando; Artigas, Luis Felipe.
The dinoflagellate Dissodinium pseudolunula is the most common and widespread ecto-parasite of copepod eggs in neritic waters. When the host is absent, the species survives with a distinctive pair of twin resting cysts described as Pyrocystis margalefii. Based on live samples, the formation of the twin resting cysts is illustrated here for the first time. The gymnodinioid infective cells did not form overwintering cysts under unfavourable conditions. These are formed inside the secondary lunate sporangium.
Tipo: Text
Palavras-chave: Dinophyceae; Life cycle; Overwintering cyst; Parasitism; Resting spores.
Ano: 2013
URL: https://archimer.ifremer.fr/doc/00373/48456/48732.pdf

Modélisation bioénergétique de la croissance, du développement et de la reproduction d'un petit pélagique : l'anchois du golfe de Gascogne
Provedor de dados: 5
Autores: Pecquerie, Laure.
Understanding the recruitment variability of fish populations is a major challenge in fishery sciences. In the present work, we explore a new approach to study the potential factors that determine this recruitment in the context of biophysical modelling. The adult spawning pattern might influence the survival of the larvae as it determines the environmental conditions they experience during this critical period. We apply our study to the Bay of Biscay anchovy Engraulis encrasicolus, which is a multiple-batch spawner.  The objective of the study is to understand the effect of the environmental conditions experienced by an individual i) on the energy available for reproduction and ii) on the temporal distribution of the spawning events and its consequences...
Tipo: Text
Palavras-chave: Inter individual variability; Environmental scenarios; Link fish metabolism   otolith; Larval survival; Spawning windows; Engraulis encrasicolus; Dynamic Energy Budget theory; Life cycle; Bioenergetic; Modelling; Variabilité inter individuelle; Scénarios environnementaux; Lien métabolisme   otolithe; Survie larvaire; Fenêtres de ponte; Engraulis encrasicolus; Energy Budget; Théorie Dynamic; Cycle de vie; Bioénergétique; Modélisation.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/these-3505.pdf

Contribution des frayères côtières au recrutement du stock de seiche Sepia officinalis de Manche : lien entre le succès de la phase pré-recrutée et l'abondance de la ressource
Provedor de dados: 5
Autores: Gras, Michael.
The English Channel cuttlefish Sepia officinalis is the most important cephalopod stock in the N-E Atlantic but is only managed by local measures, mainly due to a lack of suitable tools. The objective of this work is therefore to improve the knowledge of its population dynamic, particularly the parameters inuencing the resource abundance. After a summary of the state of the art, in a first step, the exploration of the stock structure during the reproduction period revealed that, in a warming and high fishing pressure context, the life history traits of cuttlefish have changed and a percentage of one year old cuttlefish are mature. In a second step, the inuence of the fuel price on the spatial allocation of the French trawling effort was highlighted and...
Tipo: Text
Palavras-chave: Sepia officinalis; Manche; Cycle de vie; Pêcheries; Modèle d'évaluation de stock; Recrutement.; Sepia officinalis; English Channel; Life cycle; Fisheries; Stock assessment model; Recruitment.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00160/27135/25334.pdf

Chronic dietary exposure to pyrolytic and petrogenic mixtures of PAHs causes physiological disruption in zebrafish - part I: Survival and growth
Provedor de dados: 5
Autores: Vignet, Caroline; Le Menach, Karyn; Mazurais, David; Lucas, Julie; Perrichon, Prescilla; Le Bihanic, Florane; Devier, Marie-hélène; Lyphout, Laura; Frere, Laura; Begout, Marie-laure; Zambonino-infante, Jose Luis; Budzinski, Helene; Cousin, Xavier.
The release of polycyclic aromatic hydrocarbons (PAHs) into the environment has increased very substantially over the last decades leading to high concentrations in sediments of contaminated areas. To evaluate the consequences of long-term chronic exposure to PAHs, zebrafish were exposed, from their first meal at 5 days post fertilisation until they became reproducing adults, to diets spiked with three PAH fractions at three environmentally relevant concentrations with the medium concentration being in the range of 4.6–6.7 μg g−1 for total quantified PAHs including the 16 US-EPA indicator PAHs and alkylated derivatives. The fractions used were representative of PAHs of pyrolytic (PY) origin or of two different oils of differing compositions, a heavy fuel...
Tipo: Text
Palavras-chave: Danio rerio; Life cycle; Polycyclic aromatic hydrocarbon; Heavy oil; Light crude oil; Alkylated PAH; Jaw; Digestion.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00188/29907/28490.pdf

Differential influence of life cycle on growth and toxin production of three   Pseudo-nitzschia   species (Bacillariophyceae)
Provedor de dados: 5
Autores: Sauvey, Aurore; Claquin, Pascal; Le Roy, Bertrand; Le Gac, Mickael; Fauchot, Juliette.
We used a multi‐strain approach to study the intra‐ and interspecific variability of the growth rates of three Pseudo‐nitzschia species – P. australis, P. fraudulenta, and P. pungens – and of their domoic acid (DA) production. We carried out mating and batch experiments to investigate the respective effects of strain age and cell size, and thus the influence of their life cycle on the physiology of these species. The cell size ‐ life cycle relationship was characteristic of each species. The influence of age and cell size on the intraspecific variability of growth rates suggests that these characteristics should be considered cautiously for the strains used in physiological studies on Pseudo‐nitzschia species. The results from all three species do not...
Tipo: Text
Palavras-chave: Cell size; Domoic acid; Growth; Life cycle; Pseudo-nitzschia strains.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00505/61679/65622.pdf

Black scabbardfish, Aphanopus carbo, in the northeast Atlantic: distribution and hypothetical migratory cycle
Provedor de dados: 5
Autores: Farias, Ines; Morales-nin, Beatriz; Lorance, Pascal; Figueiredo, Ivone.
The biology, ecology, and dynamics of the deep-sea teleost black scabbardfish in the northeast Atlantic are reviewed. The black scabbardfish is a commercial bathypelagic species found in the NE Atlantic mostly from Iceland to the Canary Islands and Western Sahara, at depths from 800 to 1300 m. The spatial structure of its population is still uncertain, although the existence of one single stock that migrates around the NE Atlantic driven by feeding and reproduction is the most likely hypothesis consistent with available data. This review is based on data from commercial fisheries off the Faroe Islands, Hatton Bank, the west of the British Isles, and Portugal (mainland, Azores, and Madeira) and from Icelandic and Scottish scientific surveys collected...
Tipo: Text
Palavras-chave: Deep-water longline fisheries; Migration; Life cycle; Trichiuridae; Aphanopus carbo; North Atlantic Ocean.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00175/28636/27058.pdf

Une approche bioénergétique pour la comparaison des traits d'histoire de vie de l'anchois et de la sardine du golfe de Gascogne
Provedor de dados: 5
Autores: Gatti, Paul.
Anchovy and sardine belong to the guild of small pelagic fish and are of peculiar importance at the scales of ecosystems and fisheries. Both species are worldwide spread and commonly occur in the same ecosystems. They display large interannual variability in biomass with markedly different trends or even asynchronous. A growing literature suggests that those dynamics are due to respective sensibility to environmental conditions driven by different biological traits. A priori both species are very similar but show slightly distinct feeding behaviours and reproductive strategies. Understanding divergences in both species biology and life history strategies is thus crucial to understand and predict past and future dynamics of these stocks. The aim of this PHD...
Tipo: Text
Palavras-chave: Bioénergétique; Modélisation individu centrée; Cycle de vie; Traits d'histoire de vie; Petits poissons pélagiques; Bioenergetics; Individual based model; Life cycle; Life history traits; Small pelagic fishes.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00498/60917/64277.pdf

A hierarchical Bayesian model for embedding larval drift and habitat models in integrated life cycles for exploited fish
Provedor de dados: 5
Autores: Rochette, Sebastien; Le Pape, Olivier; Vigneau, Joel; Rivot, Etienne.
This paper proposes a hierarchical Bayesian framework for modeling the life cycle of marine exploited fish with a spatial perspective. The application was developed for a nursery-dependent fish species, the common sole (Solea solea), on the Eastern Channel population (Western Europe). The approach combined processes of different natures and various sources of observations within an integrated framework for life-cycle modeling: (1) outputs of an individual-based model for larval drift and survival that provided yearly estimates of the dispersion and mortality of eggs and larvae, from spawning grounds to settlement in several coastal nurseries; (2) a habitat suitability model, based on juvenile trawl surveys coupled with a geographic information system, to...
Tipo: Text
Palavras-chave: Eastern Channel (Western Europe); Habitat suitability model; Hierarchical Bayesian model; Hydrodynamic models; Integrated model; Larval drift; Life cycle; Nursery; Recruitment; Sole; Solea solea; Spatially structured.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00161/27243/25454.pdf

Spatial distribution and interannual variations in the size frequency distribution and abundances of Pleuragramma antarcticum larvae in the Dumont d’Urville Sea from 2004 to 2010
Provedor de dados: 5
Autores: Koubbi, Philippe; O'Brien, Colleen; Loots, Christophe; Giraldo, Carolina; Smith, Martina; Tavernier, Eric; Vacchi, Marino; Vallet, Carole; Chevallier, Jean; Moteki, Masato.
This paper investigates the abundance and distribution of Pleuragramma antarcticum larvae by size class in the Dumont d’Urville Sea from 2004 to 2010. Samples were collected between Dumont d’Urville station and the Mertz Glacier Tongue onboard the RV l’Astrolabe for studying the inter-annual and spatial distribution of fish larvae and the TRV Umitaka Maru for looking at life stages vertical distributions. The seabed depression adjacent to the Mertz Glacier Tongue and in Commonwealth Bay hosted high abundances of small P. antarcticum larvae, while larger larvae were found in lower abundance and further offshore. We found that canyons, sea ice, stability of the water column and temperatures are important features for determining suitable areas for young...
Tipo: Text
Palavras-chave: Pleuragramma antarcticum; East Antarctic shelf; Fish larvae; Life cycle; Inter-annual variations.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00069/17992/15528.pdf

Variations des activites digestives en fonction des facteurs du milieu chez les crustaces
Provedor de dados: 5
Autores: Galgani, Francois; Benyamin, Y; Vanworhmoudt, A; Cecaldi, J.
Proteolytic enzymes of hepatopancreas of six species of peneids (Penaeus kerathurus, P. japonicus, P. monodon, P. stylirostris, P. merguiensis and P. vannamei ) have been studied. Some of their physiological variations have been characterised. Increase in acclimation temperature of crustaceans enhances increase of specific activities of proteases. Variations of salinity does not modify specific activities, nor quantities of trypsin, nor electrophoretic patterns of these different proteases.
Tipo: Text
Palavras-chave: Penaeus kerathurus; Penaeidae; Malacostraca; Diets; Growth; Larval development; Life cycle; Acclimation; Environmental effects; Digestive glands; Enzymatic activity; Salinity effects; Temperature effects; Enzymes; Endocrinology; Digestion; Développement larvaire; Croissance; Cycle d'intermue; Carboxypeptidase A and B; Leucine aminopeptidase; Chymotrypsin; Trypsine; Enzymes digestives; Homarus ganmarus; Palaemon serratus; P. vannamei; P. merguiensis; P. stylirostris; P. monodon; P. japonicus; Penaeus keratkurus.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1195.pdf

Les dinophycées pélagiques et benthiques du Golfe de Gascogne sud de la Bretagne à Arcachon
Provedor de dados: 5
Autores: Paulmier, Gerard.
Les microphytes planctoniques et benthiques du Golfe de Gascogne sont relativement diversifiés. Cette diversification est probablement en rapport avec la situation hydrologique particulière de cette région enrichie par des mélanges de masses d'eau de diverses origines et par des apports continentaux importants. Dans ce contexte, les dinophycées sont nombreuses et variées et occupent toutes les niches écologiques. 230 taxons ont été répertoriés. Quelques espèces sont connues pour provoquer périodiquement des colorations de la mer "eaux rouges" et quelques-unes sont maintenant redoutées pour leur toxicité.
Tipo: Text
Palavras-chave: Zone pélagique; Zone benthique; Phytoplancton; Diversité espèces; Niche écologique; Inventaire floristique; Cycle développement; Répartition géographique; Morphologie; Pyrrophycophyta; Golfe de Gascogne; Bretagne; Landes; Algae; Thallophyta; Océan Atlantique Nord; Océan Atlantique; France; Europe; Aquitaine; Pelagic zone; Benthic zone; Phytoplankton; Species diversity; Niche; Floral survey; Life cycle; Geographic distribution; Morphology; Pyrrophycophyta; Bay of Biscay; Bretagne; Landes; Algae; Thallophyta; North Atlantic; Atlantic Ocean; France; Europe; Aquitaine.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00260/37097/35613.pdf

Synthèse bibliographique des principales espèces de Manche orientale et du Golfe de Gascogne
Provedor de dados: 5
Autores: Mahe, Kelig; Delpech, Jean-paul; Carpentier, Andre.
This report is a result of a contract between Ifremer and the French Ministry of Industry. The aim was to provide an up-to-date of the description of the main fishing species biology in the Bay of Biscay and the Eastern Channel.
Tipo: Text
Palavras-chave: Biological parameters; Life cycle; Food; Environment; Spatial distribution; Paramètres biologiques; Cycle de vie; Alimentation; Environnement; Répartition géographique.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/rapport-6643.pdf

Comparison of three Gobiidae (Teleostei) life history strategies over their geographical range
Provedor de dados: 5
Autores: Bouchereau, Jl; Guelorget, O.
This article summarizes the latest knowledge on the ecology of three gobies. The authors compile data published by various scientists who carried out their research under different conditions, using a variety of methods for collecting data and processing the results. The relationship between population structure and different environmental conditions was considered for three goby species Pomatoschistus minutus (Pallas, 1770), P. microps (Kroyer, 1838) and Gobius niger Linnaeus, 1758, in different geographical areas, notably the Mediterranean (Gulf of Lions and Adriatic) and cold temperate Atlantic (north of the English Channel) parts. In the three species, the life cycles in the Mediterranean, favoured by the local hydroclimate, are "contracted" (growth is...
Tipo: Text
Palavras-chave: Golfe du Lion; Atlantique; Cycles vitaux; Stratégies d'occupation; Gobiidæ; Gulf of Lions; Atlantic; Life cycle; Occupying strategy; Gobiidae.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00326/43672/43198.pdf

Cymothoa frontalis, a cymothoid isopod parasitizing the belonid fish Strongylura strongylura from the Malabar Coast (Kerala, India): redescription, description, prevalence and life cycle
Provedor de dados: 5
Autores: Thamban, Aneesh Panakkool; Kappalli, Sudha; Kottarathil, Helna Ameri; Gopinathan, Anilkumar; Paul, Trilles Jean.
Background: Cymothoa frontalis Milne Edward, 1840 is a very poorly described cymothoid, notwithstanding the previous redescription of the female. Pertinently, to date, the host of C. frontalis has not been identified with adequate precision. Most of the descriptions of cymothoids carried out hitherto were based primarily on females, but practically ignoring other life cycle stages. The present paper redescribes the female and describes other life cycle stages of the species C. frontalis to get better precision in their identification. Results: The female phase of C. frontalis is redescribed according to type specimens extant in the NMNH, Paris, and also by the data obtained from live specimens collected during the present study. The general morphology and...
Tipo: Text
Palavras-chave: Cymothoa frontalis; Cymothoidae; Redescription; Description; Prevalence; Life cycle; Strongylura strongylura; India.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00275/38664/73718.pdf

The Combined Effect of Haplodiplonty and Partial Clonality on Genotypic and Genetic Diversity in a Finite Mutating Population
Provedor de dados: 5
Autores: Stoeckel, Solenn; Arnaud-haond, Sophie; Krueger-hadfield, Stacy A; Orive, Maria.
Partial clonality is known to affect the genetic composition and evolutionary trajectory of diplontic (single, free-living diploid stage) populations. However, many partially clonal eukaryotes exhibit life cycles in which somatic development occurs in both haploid and diploid individuals (haplodiplontic life cycles). Here, we studied how haplodiplontic life cycles and partial clonality structurally constrain, as immutable parameters, the reshuffling of genetic diversity and its dynamics in populations over generations. We assessed the distribution of common population genetic indices at different proportions of haploids, rates of clonality, mutation rates, and sampling efforts. Our results showed that haplodiplontic life cycles alone in finite populations...
Tipo: Text
Palavras-chave: Mating system; Asexuality; Genetic and genotypic diversity; Life cycle; Linkage disequilibrium; FIS.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00684/79593/82282.pdf

First record of a Marteilia parasite (Paramyxea) in zooplankton populations from a natural estuarine environment
Provedor de dados: 5
Autores: Carrasco, Noelia; Lopez, Immaculada; Alcaraz, M; Furones, M. Dolores; Berthe, Franck; Arzul, Isabelle.
The life cycle of the species forming the genus Marteilia (Phylum Paramyxea), which are marine protozoan parasites of molluscs, is still poorly known, although there is evidence of the need for intermediate hosts. To date, only the calanoid copepod Acartia (Paracartia) grani has been demonstrated to be involved in the life cycle of the parasite infecting flat oysters growing in ponds with a low biodiversity. However, no complex natural environments, such as bays or estuaries, have been studied for a similar purpose. Therefore, a survey for the presence of the protozoan Marteilia was conducted by PCR on the zooplankton community of a natural ecosystem, the Alfacs and Fangar bays in the Delta de l'Ebre (NW Mediterranean). Identification of zooplankton...
Tipo: Text
Palavras-chave: Zooplankton; Harpaticoida sp.; Oithona sp.; Mollusc parasite; Life cycle; Marteilia.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3050.pdf

Observations on possible life cycle stages of the dinoflagellates Dinophysis cf. acuminata, Dinophysis acuta and Dinophysis pavillardi
Provedor de dados: 5
Autores: Berland, Brigitte R; Maestrini, Serge Y; Grzebyk, Daniel.
Some aspects of the life-cycle have been investigated in Dinophysis cf, acuminata, the dominant species of the genus along the French Atlantic coast, as well as in D, acuta; a few observations have also been made on the Mediterranean species D. pavillardi. Dinophysis cells occur in 2 clearly distinguished sizes. Small cells typically had a theca thinner than large cells, and cingular and sulcal lists were less developed. Both small and large cells were seen dividing, producing 1 to 4 round intracellular bodies. Some of these round bodies in turn contained many small flagellated cells which escaped through a pore and swam rapidly. Their behaviour after release, and how they might give rise to vegetative cells, has not been observed thus far; we do not...
Tipo: Text
Palavras-chave: Dinophysis sp.; Life cycle; Cyst.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00258/36957/35626.pdf

Life cycles in brackish habitats: adaptive strategies of some polychaetes from the Venice lagoon
Provedor de dados: 5
Autores: Prevedelli, D; Simonini, R.
The life cycle of five species of polychaetes living in the Venice lagoon is analysed with the aim of finding out if some traits can be interpreted as an adaptation to brackish environments. The studied species are characterized by different sizes and reproductive strategies. Marphysa sanguinea is a large-sized, annual iteroparous species belonging to the Eunicidae family that reproduces without epitokal modification. Perinereis cultrifera and P. rullieri are large-sized semelparous species belonging to the Nereididae family: the first reproduce with epitokal metamorphosis, the second do not. Ophryotrocha labronica and Dinophilus gyrociliatus are small iteroparous species with semi-continuous reproduction belonging to the Dorvilleidae and Dinophilidae...
Tipo: Text
Palavras-chave: Cycles vitaux; Eaux saumâtres; Stratégies de reproduction; Polychètes; Lagune de Venise; Life cycle; Brackish water; Reproductive strategies; Polychaeta; Venice lagoon.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00322/43287/43022.pdf

Ecologie du copépode calanoïde Paracartia grani. Implication dans le cycle de vie du parasite Marteilia refringens dans la lagune de Thau
Provedor de dados: 5
Autores: Boyer, Séverine.
In this study, the life cycle of Paracartia grani, a calalloid copepod belonging to the Acartiidae family was determined in Thau lagoon. Indeed, the copepod involvement in the life cycle of the parasite Marteilia refringens affecting the bivalve productions is suspected. Mesozooplanktonic community .was monitored twice a month. over two years at a fixed station in the lagoon. Sampling has identified P. grani as the acartiid dominant species in summer. From April to January, the copepod is found in the water column while from February to early April it remains in the sediment as diapausing eggs. The analysis of the population structure (size spectmm, contribution of developmental stages and sex ratio) has revealed that there are in between 6 and 9...
Tipo: Text
Palavras-chave: Paracartia grani; Cycle de vie; Production d'oeufs; Oeufs de diapause; Mésozooplancton; Marteilia refringens; Mytilus galloprovincialisa; Ruditapes decussatus; PCR; Hybridation in situ; Lagune de Thau; Paracartia grani; Life cycle; Egg production; Diapause eggs; Mesozooplankton; Marteilia refringens; Mytilus galloprovincialis; Ruditapes decussatus; PCR; In situ hybridization; Thau lagoon.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00118/22931/21482.pdf

Alternation of generations in Andricus corruptrix (Schlechtendal): comments on and description of a new sexual form (Hymenoptera: Cynipidae)
Provedor de dados: 16
Autores: Folliot, R.; Ros-Farré, P.; Bellido, D.; Pujade-Villar, J.
Life cycle of A. corruptrix (Schlechtendal, 1870) is treated and corrections to previous experiments are discussed. A new sexual form for A. corruptrix is herein described, while A corruptrix forma larshemi is considered a valid species and for taxonomical reasons is renamed as Andricus improprius n. stat &amp; n.sp, only known by the sexual form, and not linked with A. corruptrix. Lectotypes for ,4. improprius n. stat &amp; n, sp. (= A. larshemi not available) are also designated.
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; Cynipidae; Andricus; A. corruptrix; A. improprius; Life cycle; New form.
Ano: 2004
URL: http://www.repository.naturalis.nl/record/534332

Brooding in a temperate zone land snail: seasonal and regional patterns
Provedor de dados: 16
Autores: Sulikowska-Drozd, A.; Maltz, T.K.; Kappes, H.
The goal of this study is to assess if the reproductive strategy of a brooding land snail shifts along a climatic gradient. We focused on the following traits: timing and length of the reproductive season, brood size, ontogenetic dynamics of embryos, and reproductive mode (viviparity versus egg-laying). We dissected the central European door snail Alinda biplicata, collected monthly from eight populations covering the oceaniccontinental climatic gradient within the species’ distribution range. Forty percent of the 1706 dissected individuals were brooding. The species displayed a spring-summer reproductive activity pattern: intrauterine brooding was recorded between March and September; first embryos of a developmental stage that equals that of live-born...
Tipo: Article / Letter to the editor
Palavras-chave: Clausiliidae; Gastropoda; Life cycle; Moisture; Mollusca; Vivaparity; 42.73.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/447983

Immature stages and phylogenetic importance of Astrapaeus, a rove beetle genus of puzzling systematic position (Coleoptera, Staphylinidae, Staphylinini)
Provedor de dados: 16
Autores: Pietrykowska-Tudruj, E.; Staniec, B.; Wojas, T.; Alexey, A.
For the first time eggs, larvae and pupae obtained by rearing are described for Astrapaeus, a monotypic West Palearctic rove beetle genus of a puzzling phylogenetic position within the megadiverse tribe Staphylinini. Morphology of the immature stages of Astrapaeus ulmi is compared to that of other members of the tribe and discussed in a phylogenetic context. Contrary to conventional systematics and in accordance with recently developed phylogenetic hypotheses based on morphology of adults, larval morphology supports the non-Quediina affiliation of Astrapaeus. Eggs and pupae provided fewer characters with putative phylogenetic signal. Under laboratory conditions, a peculiar preference for isopod prey was observed for A. ulmi. However, this could not be...
Tipo: Article / Letter to the editor
Palavras-chave: Egg; Feeding preference; Larva; Life cycle; Morphology; Phylogeny; Pupa; 42.75; 42.64.
Ano: 2014
URL: http://www.repository.naturalis.nl/record/472282

Heterochrony, generic distinction and phylogeny in the family Hydractiniidae (Hydrozoa: Cnidaria)
Provedor de dados: 16
Autores: Boero, F.; Bouillon, J.; Piraino, S.
The taxonomy of Hydractinia, Stylactaria and Podocoryna is discussed and the three genera are merged into Hydractinia since their diagnostic characters are liable to lead to polyphyly and paraphyly, due to repeated episodes of medusa reduction via heterochrony (paedomorphosis). The phylogeny of the Hydractiniidae is reconstructed by using two outgroups, Clava and Cytaeis, both having some characters in common with the Hydractiniidae. The resulting phylogenetic trees agree in identifying affinities among Hydractinia, Kinetocodium and Hydrocorella, all with polymorphic colonies with gastrozooids having oral tentacles. The position of Clavactinia (characterized by gastrozooids with widely scattered tentacles) is at the root of the tree if Clava is the...
Tipo: Article / Letter to the editor
Palavras-chave: Cnidaria; Hydrozoa; Anthomedusae; Phylogeny; Life cycle; Classification; Heterochrony; Paedomorphosis.; 42.72.
Ano: 1998
URL: http://www.repository.naturalis.nl/record/317695

Nausithoe aurea n. sp. (Scyphozoa: Coronatae: Nausithoidae), a species with two pathways of reproduction after strobilation: sexual and asexual
Provedor de dados: 16
Autores: Silveira, Fábio Lang da; Morandini, André Carrara.
Nausithoe aurea, a new species of scyphozoan Coronatae, is described from São Paulo State, Brazil. The solitary scyphistomae, with some zooxanthellae, strobilated producing planuloids and medusae; this represents an intermediate life cycle between that of metagenetic Nausithoidae and the submarine cave-dwelling, reduced medusa stage of Nausithoe planulophora (Werner, 1971). The periderm tube of the scyphistomae has 16 internal cusps in all whorls. The medusae present yellow pigment spots in most of their lappets. The early embryonic development is briefly described. Planuloid formation is hypothesized as explanation for polyp-stage philopatry.
Tipo: Article / Letter to the editor
Palavras-chave: Scyphozoa; Coronatae; Systematics; Life cycle; Nausithoe; New species.
Ano: 1997
URL: http://www.repository.naturalis.nl/record/504528

Morfología de los estados inmaduros y adulto de Neohydatothripsdenigratus (De Santis) (Thysanoptera: Thripidae), con datos sobre su biología
Provedor de dados: 82
Autores: Contreras,Eugenia F; Zamar,María I.
The adult female of Neohydatothrips denigratus (De Santis) is redescribed, the male and immature stages (larva, prepupa and pupa) are described for the first time, and aspects of the biology of this species are made known. Descriptions of the different stages of development were made from laboratory-reared specimens on using twigs of Phaseolus vulgaris as a feeding and oviposition substrate. Neohydatothrips denigratus undergoes its life cycle on the leaves of P. vulgaris, no immature stages were found in flowers or fruits. Under controlled conditions (21 ± 2ºC; 80 ± 4% RH; photophase: 12h), this species needed 21.6 ± 1.60 d to complete development (egg: 7.0 ± 1.00 larva I: 3.7 ± 1.40; larva II: 4.2 ± 1.10; prepupa: 1.8 ± 0.70, pupa: 5 ± 1). Longevity was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life cycle; Host plant; Phaseolus vulgaris.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000300012

Developmental biology of Argas neghmei Kohls &amp;amp; Hoogstraal (Acari: Argasidae) under laboratory conditions
Provedor de dados: 82
Autores: González-Acuña,Daniel; Vargas,Pamela; Ardiles,Karen; Parra,Luis; Guglielmone,Alberto.
In order to describe the developmental biology of the tick Argas neghmei Kohls &amp;amp; Hoogstraal under laboratory conditions, 40 females and 40 males were collected from chicken coops located in Calama (II Region, Chile). They were fed on chickens and maintained under two laboratory conditions: one group at 30 ± 5 ºC and 35 ± 5 % RH and another at 27 ± 5 ºC and 80 ± 5 % RH, both at 12: 12 h L:D photoperiod. The ticks were observed daily to determine larval feeding periods, preoviposition, oviposition, egg incubation as well as the frequency of egg laying, number of eggs laid, and percentage of larval hatching. Females did not lay eggs at 80 ± 5% RH, and data on the biology of this tick was obtained only at 35 ± 5% RH. The life cycle of A. neghmei lasted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical region; Soft tick; Argasidae; Argas neghmei; Life cycle.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000200003

Age and growth of the Amazonian migratory catfish Brachyplatystoma rousseauxii in the Madeira River basin before the construction of dams
Provedor de dados: 83
Autores: Hauser,Marília; Doria,Carolina R. C.; Melo,Larissa R. C.; Santos,Ariel R.; Ayala,Daiana M.; Nogueira,Lorena D.; Amadio,Sidinéia; Fabré,Nídia; Torrente-Vilara,Gislene; García-Vásquez,Áurea; Renno,Jean-François; Carvajal-Vallejos,Fernando M.; Alonso,Juan C.; Nuñez,Jésus; Duponchelle,Fabrice.
ABSTRACT The goliath catfish Brachyplatystoma rousseauxii has crucial economical and ecological functions in the Amazon basin. Although its life history characteristics have been studied in the Amazon, there is little information in the Madeira River basin, which holds genetically distinct populations and where dams were recently built. Using fish collected in Bolivia, Brazil and Peru, this study provides a validation of growth rings deposition and details the growth patterns of B. rousseauxii in the Madeira before the dams’ construction. Age structure and growth parameters were determined from 497 otolith readings. The species exhibits two growth rings per year and sampled fish were between 0 and 16 years old. In the Brazilian portion of the basin, mainly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Biannual rings; Goliath catfish; Life cycle; Otolith.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100217

Growth of the Silverside Atherinella brasiliensis in Tramandaí Estuary, Southern Brazil (Actinopterygii: Atherinopsidae)
Provedor de dados: 83
Autores: Bervian,Giovana; Fontoura,Nelson F.
The growth of Atherinella brasiliensis (Quoy &amp;amp; Gaimard, 1824) was studied through monthly samples taken at Tramandaí Lagoon, Imbé County, Rio Grande do Sul, Brazil. Animals were captured using a beach seine net. Length-weight relationships and age- growth curves for males and females were adjusted. The growth parameters of the von Bertalanffy growth formulae are Linf=16.0 and k=0.883 for males and Linf=17.0 and k=0.825 for females. First reproduction occurred one year after recruitment. Once reaching maturity, adults of A. brasiliensis reproduced once more in the next spring with two-year-olds and disappeared soon after from size frequency distributions. A few captured animals showed a size compatible with an age of three years.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atherinidae; Longevity; Life cycle; Life history.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000400008

Reproductive biology of Parona signata (Actinopterygii: Carangidae), a valuable economic resource, in the coastal area of Mar del Plata, Buenos Aires, Argentina
Provedor de dados: 83
Autores: Bianchi,Santiago Julián; González-Castro,Mariano.
ABSTRACT The reproductive biology and life cycle of Parona leatherjacket, Parona signata, present in Mar del Plata (38º 00’S 57º 33’W) coast, was studied. Samples were obtained monthly since January 2018 to February 2019 from the artisanal fishermen and the commercial fleet of Mar del Plata. A histological analysis was carried out and the main biologic-reproductive parameters were estimated: fecundity, oocyte frequency distribution and gonadosomatic index (GSI). Both the macroscopic and microscopic analyses showed reproductive activity in March and November. Mature females were recorded, which showed hydrated oocytes, as was evidenced by the histological procedures. Both, the histological and the oocyte diameter distribution analyses showed the presence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fecundity; Gonad histology; Life cycle; Pampo solteiro; Reproductive ecology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000300207

Developmental Stages of Protozoan Piroplasma Species Endemic in Japan
Provedor de dados: 19
Autores: Higuchi, Seiichi.
Palavras-chave: Theileria sergenti; Babesia ovata; Babesia gibsoni; Haemaphysalis longicornis; Life cycle.
Ano: 1993
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/178

Estudio de algunos aspectos del ciclo vital de la merluza de cola Macruronus magellanicus, Lonnberg, 1907.
Provedor de dados: 20
Autores: Giussi, A.R.
Long tailed hake Macruronus magellanicus, is a demersal fish,distributed in the SW Atlantic Ocean, in Malvinas Current waters,from 36° and 55°S, mainly between 50m and 200m depth. The species is also distributed in Chilenian waters in the Pacific Ocean, being caught in the Magellan Strait and the Beagle Channel. Age determination was estimated with the sagittae otoliths, in which only one ring is formed during the year. Growth parameters were calculated directly and with back calculated methodology, no differences were observed between the results. Differences in growth sexes were evident from 3 years old. The oldest age observed was 13. Different distributional areas of adults through out the year could suggest a migratory movement in northern waters of...
Tipo: Theses and Dissertations
Palavras-chave: Life cycle; Growth; Otoliths; Age determination; Reproduction; Population dynamics; Mortality; Population structure; Fishery surveys; Fishing grounds; Geographical distribution; Back calculation; Growth; Otoliths; Age determination; Population structure; Geographical distribution; Life cycle; Reproduction; Population dynamics; Mortality; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_27091; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_6111; Http://aims.fao.org/aos/agrovoc/c_4945; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1996
URL: http://hdl.handle.net/1834/1488

Hábitos alimentarios de los peces del género Haemulon (Pisces: Haemulidae) de los arrecifes de la región de Santa Marta, Colombia
Provedor de dados: 20
Autores: Estrada-R., M.
£1 hábito alimentario de las especies del género Haemulon varía a lo largo de su ciclo de vida, de tal manera que los juveniles menores de 80 mm de longitud total en H, aurolineatum, H. chrysargyreum, H. raelanurum y H. srriatum son planctófagos y se aumentan durante las horas de luz (excepto H- chrysargyreum que se alimenta de noche). H. flavolineatum en estado juvenil se alimenta de organismos tanto planctónicos como bemónicos. En la fase adultade H. aurolineatum, H. carbonaríum. H. flavolineatum, H. melanurum, H. macrostomum, H. parrai, H. plumierí y H. sdurus la alimentación cambia a una dieta constituida por organismos bentónicos, siendo más frecuentes los crustáceos decápodos, moluscos y poliquetos. El cambio de hábito alimentario de planctófago a...
Tipo: Journal Contribution
Palavras-chave: Feeding behaviour; Life cycle; Fish; Reefs; Feeding behaviour; Fish; Life cycle; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_4317.
Ano: 1986
URL: http://hdl.handle.net/1834/4046

Historia de vida y dinámica de poblaciones de Lychnorhiza lucerna (Scyphozoa) ¿Un recurso pesquero alternativo?
Provedor de dados: 20
Autores: Schiariti, A.
In this Thesis we presented the first steps in the study of the life history and population dynamics of Lychnorhiza lucerna as well as the possibilities of development of its fishery in Argentina. L. lucerna presented a metagenetic life cycle characteristic of most scyphozoans. Polyps reproduced asexually by the production of podocysts and polidisk strobilation. The combination of both types of asexual reproduction resulted in a high strobilation rates indicating that the abundance of medusae would strongly depend on polyps abundance and reproduction. The absence of ephyrae in the Río de la Plata estuary suggest that L. lucerna doest not complete its life cycle locally but medusae would be produced by polyps located northwards along the Uruguayan or...
Tipo: Theses and Dissertations
Palavras-chave: Life cycle; Life history; Population dynamics; Reproductive cycle; Biomass; Estuarine fisheries; Life history; Biomass; Estuarine fisheries; Life cycle; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_12170; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_2674; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_6111.
Ano: 2008
URL: http://hdl.handle.net/1834/3109

Patrones de utilización de la laguna Mar Chiquita (Buenos Aires, Argentina) y área costera adyacente por parte de los primeros estadios ontogénicos de peces
Provedor de dados: 20
Autores: Bruno, Daniel O.
The role of the Mar Chiquita lagoon and its adjacent coastal area as nursery ground for fish larvae and juveniles and the factors which regulate their recruitment process, was evaluated. To do so, we analyzed the fish early life stages composition and spatio-temporal variation over the marine-estuarine gradient of the lagoon and its relationship with environmental factors; the diel variation of these stages in the immediate area at the mouth of the lagoon; and the source of the organic carbon which feed them on the mouth of the lagoon and adjacent coastal area, by using stable isotope analysis. The richness and mean density of larvae were higher at the offshore area than at the lagoon. Inside the lagoon the dominant species in larval stage was Brevoortia...
Tipo: Theses and Dissertations
Palavras-chave: Brackishwater fish; Fish larvae; Juveniles; Recruitment; Life cycle; Environmental factors; Abundance; Brackishwater environment; Coastal lagoons; Brevoortia aurea; Gobiosoma parri; Platanichthys platana; Ramnogaster arcuata; Odontesthes argentinensis; Engraulidae; Brackishwater environment.
Ano: 2014
URL: http://hdl.handle.net/1834/5819

Caracterización de las enzimas digestivas de la langosta  Panulirus argus (Latreille, 1804): factores intrínsecos y  extrínsecos que intervienen en su regulación
Provedor de dados: 20
Autores: Perera Bravet, E.
Las langostas espinosas (Crustacea: Decapoda: Palinuridae) habitan las zonas bajas de las  plataformas insulares o continentales, fundamentalmente en ambientes rocosos o de  arrecifes, aunque  pueden encontrarse también a gran profundidad. Estos crustáceos  son  uno de los recursos pesqueros más importantes  en todo el mundo  por su altísimo valor  comercial  (Lipcius y Eggleston, 2000). De las aproximadamente 47 especies que existen,  33 soportan pesquerías comerciales  siendo Panulirus, Palinurus y Jasus  los géneros más  importantes desde el punto de vista comercial. Las langostas del género  Panulirus  son  típicas de regiones tropicales y constituyen el 82,2% de las capturas mundiales de  palinúridos (Lipcius y Eggleston, 2000). La especie Panulirus...
Tipo: Theses and Dissertations
Palavras-chave: Lobster culture; Aquaculture; Life cycle.
Ano: 2012
URL: http://hdl.handle.net/1834/5364

Pulpos octopódidos (Cephalopoda, Octopodidae).
Provedor de dados: 20
Autores: Re, M.E.
Four species of the family Octopodidae were reported to occur along the Argentine coast Octopus tehuelchus, Eledone massyae, Enteroctopus megalocyathus and Robsonella fontaniana. The first two are distributed from Brazil to south of Rawson and San Jorge Gulf, respectively, in warm-temperate waters. E.megalocyathus and R.fontaniana are of Subantarctic origin, the first ranging from San Matias Gulf to Magellan Strait, the Beagle Channel and Malvinas Islands; R.fontaniana is distributed from San Matias Gulf southwards, with records in North Patagonian and San Jorge Gulfs, Chile and Peru. A synopsis of information about taxonomical status, patterns of geographic distribution and biological aspects of these four coastal octopodids is given.
Tipo: Book Section
Palavras-chave: Animal morphology; Feeding; Geographical distribution; Growth; Life cycle; Parasites; Reproduction; Feeding; Geographical distribution; Growth; Animal morphology; Life cycle; Parasites; Reproduction; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_5574; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 1998
URL: http://hdl.handle.net/1834/2583

Estrategias reproductivas de moluscos bivalvos y equinoideos
Provedor de dados: 20
Autores: Calvo, J.; Morriconi, E.; Orler, P.
The theoretical aspects of reproductive strategies and life histories are analyzed. The gonadal structures and the main features of gametogenesis of bivalves and echinoids are described. Research on the reproductive characteristics and gametogenic cycles of the bivalve molluscs in the Argentinian littoral and the echinoid Loxechinus albus is reviewed. Special references to Mytilus edulis, Aulacomya ater, Brachidontes purpuratus, Aequipecten tehuelchus, Zygochlamys patagonica, Ostrea puelchana, Clausinella gayi, Protothaca antiqua, Eurhomalea exalbida and Mesodesma mactroides are made. Analysis of reproductive cycles includes histological and ponderal descriptions of gonadal variations. The main trend found is the partial and multiple spawning episodes....
Tipo: Book Section
Palavras-chave: Hermaphroditism; Gametogenesis; Life cycle; Marine molluscs; Reproduction; Reproductive cycle; Hermaphroditism; Gametogenesis; Life cycle; Reproduction; Http://aims.fao.org/aos/agrovoc/c_3571; Http://aims.fao.org/aos/agrovoc/c_27931; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 1998
URL: http://hdl.handle.net/1834/2581

The life history and survival of Neochetina in Lake Victoria basin: Basis for biological weed control
Provedor de dados: 20
Autores: Ochiel, G.R.S.; Njoka, S.W.; Manyala, J.O.; Okeyo Owuor, J.B.
Using our own experimental data and published data, we review information on the control process of water hyacinth and its status in Lake Victoria basin, Kenya. Experimental results show that the mean fecundity of the two weevils is 290 and 237 eggs per female laid over a period of 16 weeks, with an adult longevity of 98 and 112 days for Neochetina bruchi and N. eichhorniae respectively. There was significant difference between the egg laying capacities of the two weevil species (p=0.002). The survival rate of the two species was significantly different (p&lt;0.05) for all life stages except for larvae to pupa. There was no significant interaction between the species and the method of experimental egg setting (p&lt;0.05). The fecundity of both N. bruchi...
Tipo: Proceedings Paper
Palavras-chave: Biological development; Life cycle; Plant control; Biological control; Aquatic insects; Insect eggs; Entomology; Environment management; Survival; Biological control; Biological development; Life cycle; Http://aims.fao.org/aos/agrovoc/c_918; Http://aims.fao.org/aos/agrovoc/c_921; Http://aims.fao.org/aos/agrovoc/c_4317.
Ano: 2006
URL: http://hdl.handle.net/1834/1498

Características ecológicas del pulpito Octopus Tehuelchus en tres ambientes del golfo San Matías
Provedor de dados: 20
Autores: Storero, L.P.
Coastal marine ecosystems are highly variable and the inherent biotic and abiotic factors of these environments can influence the bio-ecological characteristics of the living cephalopods. The presence of the small octopus “pulpito” Octopus tehuelchus in the coastal environments of San Matías Gulf has been exploited by artisanal fishermen for more than 60 years. The aim of this study is to evaluate the variations in the life cycle of the pulpito, and the factors that could account for these variations in three different coastal environments of San Matías Gulf, with differences in the physical, ecological and fisheries characteristics. This study was developed in San Antonio bay, El Fuerte and Islote Lobos. Monthly samplings (October 2005-2007) in the...
Tipo: Theses and Dissertations
Palavras-chave: Fishery biology; Cephalopod fisheries; Artisanal fishing; Coastal zone management; Coastal environment; Environmental conditions; Population dynamics; Sex composition; Spatial distribution; Morphology (animal); Life cycle; Feeding; Size-at-first-maturity; Age determination; Growth; Reproduction; Reproductive behaviour.
Ano: 2010
URL: http://hdl.handle.net/1834/5023

Efecto de la salinidad y la temperatura sobre el ciclo de vida de cangrejos estuariales (Decapoda, Grapsidae).
Provedor de dados: 20
Autores: Bas, C.
El ciclo de vida de los cangrejos verdaderos (Crustacea, Brachyura) incluye en la mayoria de los casos cuatro etapas. Una etapa embrionaria, en la cual los huevos en desarrollo protegidos por una membrana de varias capas, se mantienen adheridos a los ple6podas de la hembra, expuestos a las mismas condiciones ambientales que el adulto . Posteriormente una etapa larval planct6nica y finalmente una fase juvenil y una adulta, ambas bent6nicas en igual o diferente ambiente . Muy frecuentemente [as historias de vida de los organismos son referidas como rigidamente definidas para cada especie, sin embargo existen numerosos ejemplos en invertebrados donde las caracteristicas del desarrollo y la reproducci6n de una especie son ampliamente influenciadas y...
Tipo: Theses and Dissertations
Palavras-chave: Salinity effects; Temperature effects; Life cycle; Comparative studies; Larval development; Embryonic development; Feeding; Reproduction; Seasonal variations; Feeding; Embryonic development; Life cycle; Reproduction; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_2545; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 2001
URL: http://hdl.handle.net/1834/2972

Notes on the life-cycle of &lt;i&gt;Deropristis inflata&lt;/i&gt; (Molin, 1885)? (Trematoda Digenea: Acanthocolpidae): transmission between first and second intermediate host
Provedor de dados: 27
Autores: Vaes, M.
Information is presented concerning the transmission from &lt;i&gt;Hydrobia stagnorum&lt;/i&gt; (first intermediate host) to &lt;i&gt;Nereis diversicolor&lt;/i&gt; (second intermediate host) of a species attributed provisionally to &lt;i&gt;Deropristis inflata&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hosts; Life cycle; Parasites; Deropristis inflata.
Ano: 1978
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3589

The life cycle of &lt;i&gt;Anguillicola crassus&lt;/i&gt;
Provedor de dados: 27
Autores: De Charleroy, D.; Grisez, L.; Thomas, K.; Belpaire, C.; Ollevier, F.P.
For some years now the parasitic swim bladder nematode &lt;i&gt;Anguillicola crassus&lt;/i&gt; of the European eel &lt;i&gt;Anguilla anguilla&lt;/i&gt; L., has been reported from several European countries. The entire life history of this parasite has recently been elucidated in our laboratory. Young larvae leave the swim bladder of the host via the pneumatic duct and reach the water through the digestive tract. They are ingested by small copepods (Cyclopoida), which act as intermediate hosts. Larvae remain in the hemocoel until the copepods are eaten by the final host, the European eel. Larvae penetrate through the intestinal wall and reach the swim bladder where they develop into adults. When infected copepods are eaten by other small fish, such as carp...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological vectors; Disease transmission; Fish diseases; Food chains; Freshwater fish; Hosts; Life cycle; Parasites; Parasitic diseases; Predation; Predators; Swim bladder; Anguillicola crassus.
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/3074.pdf

Seed bank modelling of volunteer oil seed rape: from seeds fate in the soil to seedling emergence
Provedor de dados: 87
Autores: Soltani,E.; Soltani,A.; Galeshi,S.; Ghaderi-Far,F.; Zeinali,E.
Studies were conducted to estimate parameters and relationships associated with sub-processes in soil seed banks of oilseed rape in Gorgan, Iran. After one month of burial, seed viability decreased to 39%, with a slope of 2.03% per day, and subsequently decreased with a lower slope of 0.01 until 365 days following burial in the soil. Germinability remained at its highest value in autumn and winter and decreased from spring to the last month of summer. Non-dormant seeds of volunteer oilseed rape did not germinate at temperatures lower than 3.8 ºC and a water potential of -1.4 MPa ºd. The hydrothermal values were 36.2 and 42.9 MPa ºd for sub- and supra-optimal temperatures, respectively. Quantification of seed emergence as influenced by burial depth was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life cycle; Seed survival; Dormancy cycle; Hydrothermal time model; Burial depth.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000200004

Dimensions of Wealth Dispersion Among Farm Operator Households:  An Assessment of the Impact of Farm Subsidies
Provedor de dados: 31
Autores: El-Osta,   Hisham S.; Mishra,   Ashok K.
This paper uses microlevel data from the Agricultural Resource Management Survey to examine the changes in the distributions of household wealth and to assess the role farm subsidies play, among other factors, in affecting these distributions.  The empirical analysis relies on the concept of the adjusted Gini coefficient and on fixed-effect regression procedures.  Coefficients from fixed-effect estimation indicate a negative correlation between government payments and wealth dispersion, with the effect shifting toward more of a positive relation when government payments were allowed to interact with regional dummies.
Tipo: Journal Article
Palavras-chave: Adjusted Gini coefficient; Agricultural Resource Management Survey; Fixed-effects regression; Government subsidies; Life cycle; Wealth dispersion; Environmental Economics and Policy; Farm Management; Livestock Production/Industries; Production Economics; C33; D31; D63; O18; Q15.
Ano: 2005
URL: http://purl.umn.edu/43733

Succession Decisions in U.S. Family Farm Businesses
Provedor de dados: 31
Autores: Mishra,   Ashok K.; El-Osta,   Hisham S.; Shaik,   Saleem.
Farm transfer or succession by the “next generation” holds a place of central importance in the determination of industry structure and total number of farmers and has profound implications for farm families. The family farm sector relies heavily on intergenerational succession. Succession and retirement are linked and reflective of the life cycles of the farm household and the farm business. A large farm-level data set and a logistic regression model were used to examine the determinants of farm succession decisions in the United States, with special emphasis given to the treatment of endogenous wealth and farm size variables. Results point to the importance of farmer’s age, educational attainment of farm operators, off-farm work by the operator or...
Tipo: Journal Article
Palavras-chave: Education; Endogeneity; Farm household wealth; Farm transfer; Household income; Intergenerational succession; Life cycle; Logit model; Off-farm work; Farm Management; Labor and Human Capital.
Ano: 2010
URL: http://purl.umn.edu/61055

Biology and management of the masked chafer Cyclocephala distincta Burmeister (Melolonthidae, Dynastinae, Cyclocephalini)
Provedor de dados: 92
Autores: Souza,Thamyrys B.; Maia,Artur C.D.; Albuquerque,Cleide M.R.; Iannuzzi,Luciana.
Adults of Cyclocephala distincta are flower visitors of Neotropical palms (Arecaceae) and commonly found in the Atlantic Forest of Pernambuco, Brazil. Males and females were collected in the wild and subjected to captive rearing and breeding. The egg hatching rate, the life cycle, longevity of immatures and adults, and oviposition parameters in captivity were analyzed. The average duration of the life cycle of C. distinctawas 108.2 days (n = 45). The egg stage lasted on average 10.9 days, and the egg-hatching rate was 73.9%. The immature stage lasted on average 93.4 days. The larvae stage exhibited negative phototaxis, and the size of their head capsules increased at a constant rate of 1.6 between instars, following Dyar's rule. The average duration of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding; Life cycle; Rearing; Thanatosis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000100037

Immature stages of Hamadryas fornax fornax (Hübner) (Lepidoptera: Nymphalidae: Biblidinae)
Provedor de dados: 92
Autores: Salik,Lucy Mila Garcia; Leite,Luis Anderson Ribeiro; Dias,Fernando Maia Silva; Casagrande,Mirna Martins; Mielke,Olaf Hermann Hendrik.
ABSTRACT The external morphology and biology of the immature stages of Hamadryas fornax fornax (Hübner, [1823]) (Lepidoptera, Nymphalidae, Biblidinae) recorded on Dalechampia triphylla (Euphorbiaceae) in Curitiba, Paraná, Brazil are described. Morphological characters are illustrated and described, as a result of observations in scanning electron, stereoscope and optical microscopes, the last two attached to a camera lucida. Results are compared and discussed with immature stages of other species of Biblidinae.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bionomy; Life cycle; Neotropical; Papilionoidea.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000400301

Biologia de Neotrioza tavaresi Crawford, 1925 (Hemiptera, Psyllidae), galhador da folha do araçazeiro (Psidium cattleianum)
Provedor de dados: 92
Autores: Butignol,C. A.; Pedrosa-Macedo,J. H.
Biology of the leaf gall inducer Neotrioza tavaresi Crawford, 1925 (Hemiptera, Psyllidae) on strawberry guava tree (Psidium cattleianum). A field study was conducted in Curitiba region, State of Paraná, southern Brazil, to describe the life cycle of Neotrioza tavaresi Crawford, 1925, a leaf galling insect in strawberry guava trees (Psidium cattleianum). Three cycles were observed (1997, 1998, 1999) during regular field trips and the insects were observed in Piraquara municipality, where 15 samples with 50 infested leaves were sampled in the 1997-98 cycle. Galls were dissected for detailed studies. Neotrioza tavaresi has a univoltine cycle in which adult individuals were found inside the galls from August onwards. The sexually mature insects with sex ratio...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect/plant relationship; Life cycle; Natural enemies; Psyllidae.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262003000100001

Aspectos biológicos e morfológicos de Leucanella viridescens (Lepidoptera: Saturniidae: Hemileucinae)
Provedor de dados: 103
Autores: Specht,Alexandre; Corseuil,Elio; Benedetti,Augusto J.; Poletto,Graziela; Formentini,Aline C.
The goal of this work was to describe aspects of the biology and morphology of Leucanella viridescens (Walker, 1855), a polyphytophagous species that is a pest to several crops of economical interest and whose larvae may cause erucism. Biological parameters were obtained under controlled conditions: temperature of 25 ± 1ºC, relative humidity of 70 ± 10%, and a 14 h photophase. Morphological and behavioral aspects were analyzed in each developmental phase. The larval stage had six instars, with an average growth rate of 1.396. A high degree of polyphytophagy was observed, including over 49 host plant species belonging to 25 families, especially Leguminosae, Solanaceae and Salicaceae. The considerable chromatic variability of the adults obtained from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caterpillars; Chromatic variation; Erucism; Life cycle; Morphology.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100005

Age and growth of Cetengraulis edentulus (Clupeiformes: Engraulidae) in a subtropical bight of Southern Coast Brazil
Provedor de dados: 103
Autores: Souza-Conceição,José Maria; Schwingel,Paulo Ricardo.
Age and growth of Cetengraulis edentulus (Cuvier, 1828) in the Saco dos Limões bight (Southern Brazil) were studied. Sampling was carried out from August 2001 to July 2003. The study of age and growth was based on the interpretation of the periodicity of ring formation in the otoliths sagittae of 491 individuals, temporal variation of otolith edge, relative marginal increments (RMI), age-length key, and von Bertalanffy curve. Cetengraulis edentulus otoliths were adequate for the interpretation of age with 86% of legibility, in which a translucent zone and its adjacent opaque zone were deposited each year. The translucent zone is formed during the cold period and the opaque zone in the warm period. Fish aged 0 (&lt;12 months) - 4.0 year old were found and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anchovy; Life cycle; Maturity; Otolith.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000300003

Immature stages and natural history of the Andean butterfly Altinote ozomene (Nymphalidae: Heliconiinae: Acraeini)
Provedor de dados: 103
Autores: Velez,Patricia Duque; Montoya,Hugo Hernando Vargas; Wolff,Marta.
The immature stages (eggs, larvae and pupae), oviposition and larval behavior of Altinote ozomene (Godart, 1819) are described here for the first time. Larvae were reared from egg clutches collected from the host plants Erato vulcanica (Klatt) H.Rob and Munnozia senecionidis Benth (Asteraceae). Eggs were laid in groups on the undersides of leaves. The number of instars varied from five to eight within the same egg clutch, and the corresponding development time from larva to adult varied from 91 to 115 days. Most (72%) larvae pupated during the sixth instar. The first four instars fed only on the leaf cuticle, whereas later instars consumed the whole leaf. Larvae were gregarious during all instars but rested together only during the day in later instars,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Host plant; Immature behavior; Lepidoptera; Life cycle; Neotropical.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000500007

Immature stages of Spodoptera cosmioides (Lepidoptera: Noctuidae): developmental parameters and host plants
Provedor de dados: 103
Autores: Specht,Alexandre; Roque-Specht,Vânia F.
ABSTRACT The goal of this study was to detail the temporal and morphological parameters of the immature stages of Spodoptera cosmioides (Walker, 1858) and to gather information about their larval host plants. Larvae were reared on artificial diet and under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photophase). The viability of eggs, larvae (pre-pupae period inclusive) and pupae were 98.97, 97.33, 97.95 and 94.76%, respectively. The average duration of egg, larval, pre-pupal and pupal stages was 3.82, 19.24, 3.20 and 14.81 days, respectively. A small proportion of females (9.48%) passed through seven instars, and female development was significantly slower than male development. The female larvae that developed through six and seven instars...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Armyworm; Artificial diet; Development; Life cycle; Soybean pod armyworm.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000400501

Preliminary data on larval morphology and life cycle of Nitidula carnaria (Coleoptera: Nitidulidae), a species of forensic interest
Provedor de dados: 99
Autores: Zanetti,Noelia I.; Visciarelli,Elena C.; Centeno,Néstor D.
The species Nitidula carnaria (Schaller) (Coleoptera: Nitidulidae) has economic and forensics importance. The mature larva, reared under controlled conditions of laboratory, was described for the first time. Moreover, preliminary information about the life cycle is provided. The time recorded from the instance mates placed together to the emergence of imago was 59 ± 2.4 days. This publication represents the first record of N. carnaria in South America.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Argentina; Carrion beetles; Forensic entomology; Life cycle.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802013000200007

First colony of Stomoxys calcitrans (Diptera: Muscidae) successfully established under laboratory conditions in Argentina
Provedor de dados: 99
Autores: Angulo Lewylle,Maricel; Lecuona,Roberto E.
The stable flies, Stomoxys calcitrans (L.) (Diptera: Muscidae), are blood-sucking insects that represent a serious problem not only because of their hematophagy and transmission of pathogens, but also because of their considerable economic impact in animal production. No colony of these insects exists in Argentina. The objectives of this work were to establish the first Stomoxys calcitrans colony in this country, and to standardize and report the duration of each stage under controlled laboratory conditions. The adult flies were successfully reared in a growth chamber (28 ± 1 ºC and 47 ± 1 %RH, under a 14 h light: 10 h dark photoperiod); whereas the immature stages were kept at 25 ± 2 ºC and natural light. The cycle from eggs to adult emergence lasted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Stable fly; Life cycle; Immature stages; Laboratory colony.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802014000200006

Morphological, behavioral and biological aspects of Azya luteipes Mulsant fed on Coccus viridis (Green)
Provedor de dados: 63
Autores: Nais,Juliana; Busoli,Antonio Carlos.
One of the major pests of nursery seedlings of coffee (Coffea arabica L.) is the green scale, Coccus viridis (Green) (Hemiptera: Coccidae). The main predators of this species are beetles of the family Coccinellidae, especially Azya luteipes Mulsant. Morphological, behavioral and biological aspects of A. luteipes feeding on C. viridis on coffee plants were examined under laboratory conditions. Tests were conducted in room temperature at 28 ± 2 ºC. A. luteipes oviposits on the underside of the scale's body, laying two to four eggs per insect. The eggs have a subelliptical form and a white-clear color, and the incubation period is 8.3 ± 1.2 days. The number of eggs laid per female per day varies between eight and ten. A. luteipes undergoes four larval instars...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coccinelids; Green scale; Development; Oviposition behavior; Life cycle.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100012

1977 Corn and sorghum insects annual report
Provedor de dados: 106
Autores: Boonsom Meksongsee; Panya Poonyathawon; Ocha Prachuabmoh; Auranuj Kongkanjana; Arunee Wongkobrat; Malee Chawanapong; Uthai Sangkasuwan; Watchara Wongkumhang; Thalearngsak Weerawooth.
11 tables
Palavras-chave: Corn; Maize; Sorghum; Sweet corn; Pest insects; Borers; Chilo sacchariphagus; Aphids; Armyworms; Mythimna separata; Ostrinia furnacalis; Life cycle; Infestation; Insecticides; Pesticides; Insect control; Yields; Losses; ข้าวโพด; ข้าวฟ่าง; หนอนเจาะลำต้น; เพลี้ยอ่อน; หนอนเจาะฝัก; แมลงที่เป็นประโยชน์; สารกำจัดแมลง.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3930

Corn and sorghum insects 1976 annual report
Provedor de dados: 106
Autores: Boonsom Meksongsee; Panya Poonyathawon; Ocha Prachuabmoh; Auranuj Kongkanjana; Arunee Wongkobrat; Malee Chawanapong; Uthai Sangkasuwan; Watchara Wongkumhang; Thalearngsak Weerawooth.
2 ill., 19 tables
Palavras-chave: Corn; Maize; Sorghum; Insect pests; Thrips; Aphids; Corn borers; Webworms; Rhopalosiphum maidis; Ostrinia furnacalis; Aphis sacchari; Frankliniella williamsi; Chilo auricilius; Stenachroia elongella; Earwig; Proreus similans; Biology; Striped borer; Life cycle; Adoretus compressus; Mythimna separata; Sitophilus oryzae; Insecticides; Insect control; Pest resistance; ข้าวโพด; ข้าวฟ่าง; แมลงศัตรู; เพลี้ยไฟ; เพลี้ยอ่อน; หนอนเจาะฝัก; หนอนใย.
Ano: 1976
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3878

Morfologia dos imaturos e ciclo evolutivo de Anacassis dubia (Boheman), A. fuscata (Klug), A. languida (Boheman), A. phaeopoda Buzzi e A. punctulata (Klug) (Coleoptera, Chrysomelidae, Cassidinae)
Provedor de dados: 104
Autores: Buzzi,Zundir José.
Eggs, fifth instar larvae and pupae of A. dubia (Boheman, 1854), A. fuscata (Klug, 1829), A. languida (Boheman, 1854), A. phaeopoda Buzzi, 1976 and A. punctulata (Klug, 1829) are described. Imatures stages were reared in a stove Biometron under temperature of 25±2ºC, photophase of 12 hours and relative humidity of 80±5%. The larvae of A. dubia and A. languida were fed with leaves of Baccharis relusa DC; A. fuscata with leaves of Baccharidastrum argutum (Less) Cabrera; A. phaeopoda with leaves of Baccharis gaudichaudiana DC. and larvae of A. punctulata with leaves of Baccharis trimera (Less) A. DC.. All plants belonging to the Asteraceae. Two forms of A. fuscata were studied: A. fuscata (Klug, 1829) and A. fuscata form=unicolor (Burmeister, 1870) n.syn. and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Chrysomelidae; Cassidinae; Anacassis; Imatures; Life cycle.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100020

Técnicas de criação e alguns aspectos da biologia de Chrysomya albiceps (Wiedemann) (Diptera, Calliphoridae), em condiçoes de laboraterio
Provedor de dados: 104
Autores: Queiroz,Margareth M. de Carvalho; Milward-de-Azevedo,Eliane M.V.
The colony of C. albiceps (Wiedemann, 1819) was established from larvae and adults colected in the "Estação para Pesquisa Parasitológica W.O. Neitz" area at UFRRJ and Seropedica District, Itaguai, Rio de Janeiro. (Latitude: 22º45'S; Longitude: 43º41'W and Altitude: 33 metres). The biological aspects of this species were studied in climatized chambers regulated at 60±10% RH and 14 hours photophase. The duration and the viability of the larval and pupal stages of C. albiceps was 5,2 and 4,53 days; 95,75% and 94%, respectively. An effect of group was observed on the larvae at the first and second instar. The average weight of mature larvae was around 75 mg, varying between 12,2 to 120 mg. Only mature larvae with average weight higher than 42 mg have...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blowfly; Ontogeny; Life cycle; Rearings methods.
Ano: 1991
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751991000100006

Biological and morphometric aspects and rearing of Syssphinx molina (Cramer) (Lepidoptera: Saturniidae), a defoliator of parica tree
Provedor de dados: 36
Autores: Batista,Telma Fátima Vieira; Lunz,Alexandre Mehl; Rosário,Valéria do Socorro Vale do; Lemos,Leandro José Uchoa; Provenzano,Rodolfo Silva; Monteiro,Ernando da Silva.
The objective of this research was to describe the biological and morphometric aspects of the parica tree defoliator, Syssphinx molina (Cramer), and make recommendations about the insect rearing. The life cycle was 62.9 days with mean periods for the egg, larval, pre-pupal and pupal stages of 5.6, 31.1, 2.2 and 16.6 days respectively. The pupal viability was 60.5% for females and 48.6% for males. The sexual ratio was 0.5 with mean production of 182.3 ± 2.2 eggs per female and egg viability of 24.3%. The mean longevity was 7.9 ± 2 and 8.1 ± 3 days for females and males respectively. Other parameters were also observed and compared with description of other Saturniidae species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bionomy; Life cycle; Neotropical; Schizolobium parahyba var. amazonicum.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672013000200009

Root fungal associations in some non-orchidaceous vascular lithophytes
Provedor de dados: 39
Autores: Muthukumar,Thangavelu; Chinnathambi,Marimuthu; Priyadharsini,Perumalsamy.
ABSTRACT Plant roots in natural ecosystems are colonized by a diverse group of fungi among which the most common and widespread are arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungi. Though AM and DSE fungal associations are well reported for terricolous plant species, they are rather poorly known for lithophytic plant species. In this study, we examined AM and DSE fungal association in 72 non-orchidaceous vascular plant species growing as lithophytes in Siruvani Hills, Western Ghats of Tamilnadu, India. Sixty-nine plant species had AM and 58 species had DSE fungal associations. To our knowledge, we report AM fungal association in 42 and DSE fungal association in 53 plant species for the first time. There were significant differences in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arbuscular mycorrhizal fungi; Dark septate endophyte fungi; Life cycle; Life-forms; Microsclerotia.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300407

Aspectos da reprodução e alimentação de Neoplecostomus microps (Loricariidae, Neoplecostominae) na microbacia do Ribeirão Grande, serra da Mantiqueira oriental (Estado de São Paulo) - DOI: 10.4025/actascibiolsci.v30i4.301
Provedor de dados: 3
Autores: Braga, Francisco Manoel de Souza; Unesp/Rio Claro; Gomiero, Leandro Muller; UNESP/Rio Claro; Souza, Ursulla Pereira; UNESP/Rio Claro.
A microbacia do Ribeirão Grande situa-se nas vertentes da serra da Mantiqueira e está circundada pela floresta Atlântica. Foram amostrados oito locais na microbacia do Ribeirão Grande, no inverno (julho de 2001), primavera (outubro de 2001), verão (fevereiro de 2002) e outono (abril de 2002). As amostras foram coletadas com um aparelho elétrico de pesca. A maturação das gônadas, os graus de repleção do estômago e de gordura visceral foram distribuídas em um ciclo anual. Neoplecostomus micropstem período de desova que vai da primavera ao verão. O tamanho da primeira maturação gonadal para machos foi de 5,9 cm de comprimento total e de 6,9 cm para as fêmeas. O alto valor em outubro e fevereiro para a relação gonadossomática e para o fator de condição...
Palavras-chave: 2.04.00.00-4    Zoologia Neoplecostomus microps; Reprodução; Alimentação; Ecologia de riacho Neoplecostomus microps; Life cycle; Feeding habit; Stream ecology.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/301

The life cycle of Bucephalus margaritae Ozaki &amp; Ishibashi, 1934 (Digenea, Bucephalidae) from the coast of Santa Catarina State, Brazil - DOI: 10.4025/actascibiolsci.v32i1.5596
Provedor de dados: 3
Autores: Marchiori, Natalia da Costa; UFSC; Magalhães, Aimê Rachel Magenta; UFSC; Pereira Junior, Joaber; GURG.
The orange disease is considered the main parasitosis in Perna perna mussel. It is caused by a complex life cycle bucephalid, involving three hosts, among them mollusks and fishes. With the aim of contributing to the knowledge of orange disease in mussel culture, the parasite life cycle was investigated. Experimental studies and monthly samples in the study area allowed the identification and characterization of the Bucephalus margaritae life cycle. Larvae and adults of B. margaritae were fixed in 5% formaldehyde, stained with Gomori’s trichrome, clarified in creosote and mounted in Canada balsam. The cercariae are found in the first intermediate host P. perna inside the sporocysts, which have the form of orange and ramified filaments. The metacercariae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bucephalus margaritae; Hypleurochilus fissicornis; Life cycle; Orange disease; Perna perna 2.13.00.00-3 Bucephalus margaritae; Hypleurochilus fissicornis; Life cycle; Orange disease; Perna perna.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5596

Cnidom variation through distinct developmental stages in the sea anemone Aulactinia marplatensis (Zamponi, 1977) (Cnidaria: Actiniaria)
Provedor de dados: 42
Autores: GARESE,AGUSTÍN; GONZÁLEZ-MUÑOZ,RICARDO; ACUÑA,FABIÁN H.
The cnidae are the exclusive diagnostic structures of phylum Cnidaria. The inventory of all cnidae types of a particular species is called the cnidom. The study of cnidae has been widely addressed in all classes of cnidarians. Particularly in the order Actiniaria (sea anemones), the study of the composition, size and distribution of cnidae is essential to the identification and description of species. In the present study, we examine the cnidom of the sea anemone Aulactinia marplatensis in three different stages of development throughout its life cycle. We found that the composition and abundance patterns are very similar between the adult and juvenile stages, although significant differences in the size capsules were found between both stages and in all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cnidae; Cnidocysts; Larval cnidom; Life cycle; Sea anemones.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100613

Fertility Life Table, Population Parameters and Biotic Potential of Helicoverpa gelotopoeon (Dyar) (Lepidoptera: Noctuidae)
Provedor de dados: 42
Autores: HERRERO,MARÍA I.; DAMI,LUCIANA C.; FOGLIATA,SOFÍA V.; CASMUZ,AUGUSTO S.; GÓMEZ,DANIEL R. SOSA; GASTAMINZA,GERARDO A.; MURÚA,MARÍA G.
Abstract Helicoverpa gelotopoeon is an endemic pest of South America that affects soybean and other important crops. Life tables are a fundamental tool used to study insect populations, resulting in crucial information for integrated pest management programs. Therefore, the aim of this study was to evaluate the biotic potential and the construction of a life table of this species under laboratory conditions. The biological parameters that showed significant differences between male and female were pupal duration, longevity and life span, which were all longer in duration for males. The net reproductive rate (R0) was 95.49, the mean generation time (T) 37.53, and the instantaneous rate of population increase “r” 0.12. The population doubling time (DT) was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life cycle; Pest management; Survival; Adult longevity; South American bollworm.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703831

Immature stages of Spodoptera albula (Walker) (Lepidoptera: Noctuidae): Developmental parameters and host plants
Provedor de dados: 42
Autores: MONTEZANO,DÉBORA G.; SPECHT,ALEXANDRE; BORTOLIN,TARCISO M.; FRONZA,EDEGAR; SOSA-GÓMEZ,DANIEL R.; ROQUE-SPECHT,VÂNIA F.; PEZZI,PATRÍCIA; LUZ,PRISCILA C.; BARROS,NEIVA M.
This study aimed to detail the temporal and morphological parameters of the immature stages of Spodoptera albula (Walker 1857) under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photophase) and to gather information about their larval host plants. For this purpose, a new rearing method and artificial diet was employed and validated. The viability of the egg, larval, pupal and pre-pupal stages was 94.54, 97.33, 93.84 and 92.34%, respectively. The average duration of the egg, larval, pupal and pre-pupal stages was 4.14, 16.37, 1.69, and 9.34 days, respectively. During the larval stage, 80.85% of females and 93.99% of males passed through six and remaining through seven instars, with significant larval protandry. The larvae that developed through...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annual crop pest; Armyworm; Artificial diet; Development; Life cycle.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100271

Growth of immature Chironomus calligraphus (Diptera, Chironomidae) in laboratory conditions
Provedor de dados: 42
Autores: Canteiro,Rita de Cássia S.A.; Albertoni,Edélti F.
Chironomidae larvae are important macroinvertebrates in limnic environments, but little knowledge exists about their biometrics development characteristics. This study aims to describe the immature Chironomus calligraphus Goeldi, 1905 under laboratory conditions by the accomplishment of thirteen egg masses from eggs eclosion to adults emergency, at controlled room temperature (25ºC) and photoperiod (12-12h). Larvae were feed ad libitum with "Alcon Basic - MEP 200 Complex" fish food and commercial dehydrated Spirulina. The postures had a mean length of 9 ± 1 mm (n = 13) and 348 ± 66 eggs. The brownish colored eggs with elliptical shape had length of 160.3 ± 17.7 µm (n = 130), being arranged as an organized string in a pseudo spiral form. The time duration...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic insects; Laboratory development; Larval instars; Life cycle.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400015

Rabbits (Oryctolagus cuniculus) as experimental hosts for Amblyomma dubitatum Neumann (Acari: Ixodidae)
Provedor de dados: 45
Autores: Faccini,J. L.H.; Chacon,S.C.; Labruna,M.B.
O ciclo biológico do Amblyomma dubitatum, que se alimentava experimentalmente em coelhos domésticos, foi avaliado em condições laboratoriais e comparado com dados recentemente obtidos de infestações experimentais em capivaras (Hydrochaeris hydrochaeris), hospedeiros naturais para essa espécie. Os coelhos foram considerados hospedeiros experimentais adequados para larvas e ninfas porque quatro dos cinco parâmetros avaliados (número de carrapatos que ingurgitaram, período de alimentação, percentagem de carrapatos que realizaram muda e período de pré-muda) foram semelhantes aos resultados obtidos com capivaras. As percentagens diárias de desprendimento e de muda das larvas e ninfas confirmam os coelhos como hospedeiros experimentais adequados para esses...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rabbit; Amblyomma dubitatum; Ixodidae; Acari; Life cycle; Experimental host.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000600039

Lucilia sericata strain from Colombia: Experimental Colonization, Life Tables and Evaluation of Two Artifcial Diets of the Blowfy Lucilia sericata (Meigen) (Diptera: Calliphoridae), Bogotá, Colombia Strain
Provedor de dados: 48
Autores: Rueda,Luis C; Ortega,Luis G; Segura,Nidya A; Acero,Víctor M; Bello,Felio.
The objective of this work was to establish, under experimental laboratory conditions, a colony of Lucilia sericata, Bogotá-Colombia strain, to build life tables and evaluate two artifcial diets. This blowfy is frequently used in postmortem interval studies and in injury treatment. The parental adult insects collected in Bogotá were maintained in cages at 22°C±1 average temperature, 60%±5 relative humidity and 12 h photoperiodicity. The blowfies were fed on two artifcial diets that were evaluated over seven continuous generations. Reproductive and population parameters were assessed. The life cycle of the species was expressed in the number of days of the different stages: egg = 0.8±0.1, larvae I = 1.1±0.02, larvae II = 1.94±0.16, larvae III = 3.5±0.54,...
Tipo: Journal article
Palavras-chave: Lucilia sericata; Diet; Fecundity; Life cycle; Life table.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000200008

Biological aspects of Cyclocephala tucumana Brethes, 1904 and Cyclocephala melanocephala (Fabricius, 1775) (Coleoptera: Scarabaeidae)
Provedor de dados: 49
Autores: Nogueira,Gerson Aler de Lima; Rodrigues,Sérgio Roberto; Tiago,Elison Floriano.
The studies were conducted on the biological aspects of Cyclocephala tucumana Brethes, 1904 and C. melanocephala (Fabricius, 1775) in Aquidauana, MS, Brazil. From January to December 2009 a light trap was installed to make collections of adults of C. tucumana and from January 2010 to February 2011 for collections of adults of C. melanocephala, at the experimental farm of the Universidade Estadual de Mato Grosso do Sul. Adults were maintained in plastic containers with soil and complete plants of Brachiaria decumbens Stapf cv. Basilisk to oviposition and start biological studies. Adults of C. tucumana were collected from September to November in the field; the embryonic period lasted on average 14.7 days, and the first, second and third larval instars...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life cycle; Cyclocephalini; Dynastinae; Insects of the soil.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100009

On the occurrence of scyphozoan ephyrae (Cnidaria, Scyphozoa, Semaeostomeae and Rhizostomeae) in the southeastern Brazilian coast
Provedor de dados: 49
Autores: Tronolone,Valquiria Baddini; Morandini,André Carrara; Migotto,Alvaro Esteves.
The occurrence of ephyrae of the scyphozoan orders Semaeostomeae and Rhizostomeae is reported for the first time for the Brazilian coast. The specimens, caught in plankton tows in the São Sebastião Channel and the Cananéia lagoon estuarine system, are: Chrysaora lactea (Semaeostomeae), Phyllorhiza punctata (Rhizostomeae), and an unidentified species of Pelagia (Semaeostomeae). A table with all species of scyphozoan with the known life cycle is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scyphozoa; Semaeostomeae; Rhizostomeae; Ephyra; Life cycle; Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032002000200008

Life history of Talorchestia deshayesii (Amphipoda, Talitridae) in the Ionian sandy beach (southern Italy)
Provedor de dados: 52
Autores: Prato,Ermelinda; Trono,Annunziata; Biandolino,Francesca.
The population structure and reproductive biology of Talorchestia deshayesii (Audouin, 1826) on an exposed sandy beach in Taranto (Italy) was examined during one year cycle. Monthly surveys were performed from September 2002 to August 2003. Individuals were subdivided into sex, measured and abundance were calculated for each sampling. Abundance varied during the study period, with a marked decrease in winter. T. deshayesii, was found in a relative narrow zone near the sea in winter and summer while in spring and autumn the animals were widespread along the supralittoral. Reproduction occurred from February to November. The minimum average CL at the moment of recovery ranged from 0.22 to 0.28 mm. The sex ratio was female biased. The females and males became...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Talorchestia deshayesii; Biology; Life cycle; Mediterranean; Ionian sea; Sandy beach.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400015

Life Cycle Observations on Amphilocus neapolitanus (Della Valle, 1853) (Crustacea, Amphipoda) Associated with Sargassum cymosum C. Agardh, 1820 in Ubatuba, (SP), Brazil
Provedor de dados: 52
Autores: Leite,Fosca Pedini Pereira.
Day and night densities, reproductive biology and life cycle of Amphilocus neapolitanus (Della Valle, 1853), associated with Sargassum cymosum C. Agardh, 1820, were studied during 13 months. The density of juveniles, males and females was higher in night samples than in day samples. Sex ratio was strongly favorable toward the females. Ovigerous females were present in similar densities in both the periods while the non-ovigerous females were predominant at night. The egg number was not correlated with the size of the females. Breeding occurred throughout the year.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Population structure; Reproductive biology; Life cycle; Amphipoda; Sargassum.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000300014

Biology of Corecoris dentiventris Berg, 1884 (Hemiptera, Coreidae) in tobacco culture (Nicotiana tabacum)
Provedor de dados: 57
Autores: CALDAS,B.-H. C.; REDAELLI,L. R.; DIEFENBACH,L. M. G.
Corecoris dentiventris Berg, 1884 (HEM., Coreidae) represents a pest in the tobacco culture in Southern Brazil. Nymphs and adults cause the wilting and twisting of the tobacco leaves due to their sucking habit. There are very few works about this species and these are restricted to concise description of the adult morphology, records of host plants and enumeration of injuries. The present investigation aims to study the life cycle of this bug. The experiment was carried out in a tobacco culture (Virginia type, var. K 326) implanted in the experimental area of the Departamento de Fitossanidade of the Universidade Federal do Rio Grande do Sul, in Porto Alegre, RS. The life cycle was studied in field conditions, in nylon cages, from egg clusters oviposited by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corecoris dentiventris; Life cycle; Tobacco.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100020

Biology of nymphs of Rhodnius robustus Larrousse, 1927 (Hemiptera, Rreduviidae), fed on pigeon or on swiss mouse blood in laboratory conditions
Provedor de dados: 57
Autores: BRAGA,M. V.; PRATA,K. C.; BRAZIL,R. P.
The duration of the life cycle of Rhodnius robustus Larrousse, 1927 as well as the mortality rate of each nymphal instar were studied comparing groups fed on pigeon or on mouse blood weekly or fortnightly. This species showed a better development and lower mortality rate when fed on swiss mouse. The intervals between feedings apparently did not have influence on the shortening of the cycle. We suggest that laboratory colonies and experiments with R. robustus are better maintained when these triatomines are fed on swiss mouse.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhodnius robustus; Biology; Life cycle; Feeding preference.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000100012

Life, Seasonal Cycles, and Population Fluctuation of Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae), in the Central Plain of La Araucanía Region, Chile
Provedor de dados: 117
Autores: Rebolledo,Ramón; Sheriff,Johnny; Parra,Leonardo; Aguilera,Alfonso.
This study was performed on an alfalfa crop located on the central plain of a Araucanía Region, Chile and in the Laboratorio de Entomología Aplicada de la Facultad de Ciencias Agropecuarias y Forestales at the Universidad de La Frontera. Certain aspects of the biology of Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae) were determined, more specifically in relation to its life cycle, seasonality, and population fluctuation. It was established that this coccinellid requires 190.32 ± 10.2 degree-days to complete a generation under laboratory conditions. This information along with the field samplings made it possible to calculate that H. variegata completes four generations per season in the alfalfa crop (Medicago sativa L.).
Tipo: Journal article
Palavras-chave: Life cycle; Seasonal cycle; Population fluctuation.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000200020

Life cycle, survivorship and life expectancy of foliage spider (Marpissa bengalensis) in citrus orchard
Provedor de dados: 65
Autores: Nawab,Muhammad; Lashari,Mushtaq Hussain.
ABSTRACT: The post embryonic developmental stages of Marpissa bengalensis (Araneae; Salticidac), the 2nd most abundant predatory species in citrus orchard were collected from the experimental fruit garden, department of Horticulture, located at the campus of University of Agriculture Faisalabad andstudied. Life cycle was observed in the laboratory, which started from egg sac collected from the field along with gravid female and released into the spider cages. The incubation period ranged from 5-15 days. The average eggs hatched were 23.8 eggs/cocoon and hatching % under laboratory conditions was recorded as 73.18%. The average duration of spiderlings span on their mothers back was 7 days. An overall, mean duration of 3rd spiderling stage was of 7.46 days....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life cycle; Marpissa bengalensis; Araneae.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000300403