Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 50
Primeira ... 123 ... Última
Imagem não selecionada

Imprime registro no formato completo
A new genus and species of Euptychiina (Lepidoptera: Nymphalidae: Satyrinae) from southern Brazil Neotropical Entomology
Freitas,AVL; Mielke,OHH; Moser,A; Silva-Brandão,KL; Iserhard,CA.
This paper describes a new genus and a new species of Euptychiina from open grassland habitats (campos de cima da serra) in southern Brazil. The systematic position of this new taxon is discussed based on morphological and molecular data, and it is considered sister to Taydebis Freitas. Since the campos vegetation is considered endangered due to anthropogenic activities, this butterfly species deserves attention and should be included in future conservation plans for this biome.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Butterfly; Open grassland habitat; Life history.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000200012
Imagem não selecionada

Imprime registro no formato completo
A new species of Moneuptychia Forster (Lepidoptera: Satyrinae, Euptychiina) from the highlands of Southeastern Brazil Neotropical Entomology
Freitas,André V.L..
This paper describes a new species of Moneuptychia Forster from the summits of the Mantiqueira and Espinhaço mountain ranges in southeastern Brazil, details the morphology of adults and immatures of this species, and discusses the definition of the genus Moneuptychia.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Butterfly; Life history; Paramos.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000600014
Imagem não selecionada

Imprime registro no formato completo
Bioecología del barrenador grande de la semilla de aguacate Heilipus lauri Boheman (Coleoptera: Curculionidae) en la región central de México Colegio de Postgraduados
Castañeda Vildózola, Alvaro.
A pesar de que Heilipus lauri Boheman (Coleoptera: Curculionidae) es una plaga que puede repercutir negativamente en la comercialización exterior del aguacate cultivado en México, se carece de información científica básica y aplicada sobre este insecto. La existente es muy superficial e imprecisa que no puede sustentar aspectos relacionados con su morfología, biología y distribución en nuestro país. Considerando lo anterior se propone generar información básica que pueda ser utilizada como referencia dentro de programas de manejo y/o erradicación dentro de áreas que reportan la presencia de este insecto. La presente investigación comprendió la descripción morfológica, aspectos biológicos como instares larvarios, fecundidad, fertilidad y...
Tipo: Tesis Palavras-chave: Persea americana; Picudos; Ciclo de vida; Fecundidad; Distribución; Doctorado; Entomología y Acarología; Persea americana; Weevils; Life history; Fecundity; Distribution.
Ano: 2008 URL: http://hdl.handle.net/10521/1406
Imagem não selecionada

Imprime registro no formato completo
Biologia e tabela de vida de Tetranychus desertorum (Acari: Tetranychidae) sobre folhas de feijão (Phaseolus vulgaris) Rev. Bras. Zool.
Rivero,Edgar; Vásquez,Carlos.
Biological aspects and life table of the red spider mite, Tetranychus desertorum Banks, 1900, were studied on leaf discs of kidney bean (Phaseolus vulgaris Linnaeus) cultivar "Tacarigua" under laboratory conditions (28 ± 2ºC, 70 ± 10% R.H. and 12:12h). Our results showed that total developmental time was 6.8 days for females, with partial duration of immature stages corresponding to 3.8, 1.4, 1.0 and 0.7 for egg, larva, protonymph and deutonymph, respectively. Preoviposition, oviposition and postoviposition periods were 1.1, 8.4 and 1.3 days, respectively; and the higher mean fecundity (6.93 eggs/female/day) was observed on day 4. Female mean longevity was 10 days. The life table parameters recorded were: net reproduction rate (Ro) = 41.10 individuals;...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fecundity; Life history; Red spider mite; Tetranychid.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100007
Imagem não selecionada

Imprime registro no formato completo
Biologie et pêche traditionnelle des crevettes pénéides dans l'embouchure d'un fleuve en milieur semi-aride (sud-ouest de Madagascar) ArchiMer
Laroche, Jean; Benoely,; Siaviri, A.
Traditional fishing using beach seines was studied over a period of one year at the mouth of the Onilahy river. The catches/efforts were recorded on a daily basis, biological sampling and the measurement of hydrological parameters being carried out twice a month. The moderate variations of salinity and temperature (14 < salinity < 35; 25 degrees C < temperature < 30 degrees C) which were observed in the estuary can be explained by the semiarid climate of the area. Four species of penaeid shrimps are to be found on the Onilahy: Metapenaeus monoceros, Panaeus indicus, Penaeus monodon and Penaeus japonicus, which were mainly caught at the subadult/adult stage with a Carapace length between 10 and 50 mm. The presence of these important sizes at the...
Tipo: Text Palavras-chave: Pêche; Estuaire; Dynamique population; Croissance; Taille corporelle; Cycle évolutif; Zone semi aride; Madagascar; Penaeus japonicus; Penaeus monodon; Penaeus indicus; Metapenaeus monoceros; Rivière Onilahy; Afrique; Milieu saumâtre; Macrura; Decapoda; Crustacea; Arthropoda; Invertebrata; Fishing; Estuaries; Population dynamics; Growth; Body size; Life history; Semi arid zone; Malagasy Republic; Penaeus japonicus; Penaeus monodon; Penaeus indicus; Africa; Brackish water environment; Macrura; Decapoda; Crustacea; Arthropoda; Invertebrata.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00097/20828/42822.pdf
Imagem não selecionada

Imprime registro no formato completo
Biology and life table of Dirphia araucariae (Lepidoptera: Saturniidae): a herbivore of potentially high impact on Araucaria angustifolia. Repositório Alice
ZENKER, M. M.; SPECHT, A.; FRONZA, E.; POLETTO, G.; MARCON, F.; FORMENTINI, A. C.; GEDOZ, M..
The life-history and biology of Dirphia araucariae Jones, 1908, including its life fertility table, are here described. Moths were reared in the laboratory under controlled conditions on their host plant, Araucaria angustifolia (Bertoloni) O. Kuntze ? Araucariaceae. We describe several life-history traits of the species, namely: developmental period, survival rate, growth rate, fertility, fecundity, sex ratio, cephalic capsule width, and pupal weight. Mean duration of life stages were: egg = 26.78 days; larva = 61.78 days; repupa = 6.85 days; pupa = 62.46 days; adult = 8.37 days. We found statistically significant differences between sexes for adult, larval and pupal stage duration; larval stage was longer in females while pupal stage was longer in males....
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Historia de vida; Pinheiro do Paraná; Lepidotero; Lepidoptera; Life history; Araucaria angustifolia; Brazil.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/974006
Imagem não selecionada

Imprime registro no formato completo
Breeding biology of Tyrannus melancholicus (Aves: Tyrannidae) in a restinga reserve of southeastern Brazil Rev. Bras. Zool.
Daros,Hermes; Dutra,William Barbosa; Duca,Charles.
ABSTRACT Existing knowledge of the breeding success and life history characteristics of most Neotropical bird species is scarce. Here, we help fill this gap by analyzing aspects of the breeding biology of the Tropical Kingbird Tyrannus melancholicus (Vieillot, 1819), which is a good model for this kind of study as it is a common species occurring in various environments, including urban areas, but little is known about its life history. We provide results concerning the breeding period, clutch size, incubation and nestling periods, description of nests, eggs and nestlings, and the plants used for nest sites by this species. Fifty-four nests were monitored over two seasons (2012-2014) in a protected area in southeastern Brazil. Nesting began at the end of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Breeding season; Clutch size; Life history; Tropical Kingbird.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100308
Imagem não selecionada

Imprime registro no formato completo
Breeding, growth and exploitation of Brachyplatystoma rousseauxii Castelnau, 1855 in the Caqueta River, Colombia Neotropical Ichthyology
Córdoba,Edwin Agudelo; León,Ángela Viviana Joven; Bonilla-Castillo,César Augusto; Petrere Junior,Miguel; Peláez,Marlón; Duponchelle,Fabrice.
The main life history traits of the large Amazonian migratory catfish Brachyplatystoma rousseauxii were determined in the Caqueta River, Colombia. The breeding season occurred during the rising and falling water periods. The size at first sexual maturity was significantly larger for females (88.5 cm Ls) than males (81.7 cm). Both males and females reproduce for the first time between their third and fourth year. The growth characteristics were estimated using length frequency analyses. Females grew systematically larger than males, the difference being about 9% after the first year and increasing to 12% for ten years old individuals. Mortality estimates, calculated from different models, some taking into account the effect of body size, ranged from 0.32 to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazonia; Dorado; Life history; Migratory catfish; Pimelodidae.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300637
Imagem não selecionada

Imprime registro no formato completo
Can stochastic variations in recruitment induce long-term fluctuations in the carrying capacity? ArchiMer
Fromentin, Jean-marc.
Long-term fluctuations in fish abundance are generally attributed to low frequency processes, such as human exploitation and/or environmental and climatic changes. Based on recent studies and simple simulations, this manuscript shows how long-term fluctuations in the carrying capacity and/or spawning stock biomass of a long-live species, such as the Atlantic bluefin tuna, may simply arise from stochastic variations in the recruitment. The implications of such a feature are discussed and compared among different Atlantic tunas and tuna-like species.
Tipo: Text Palavras-chave: Long-term fluctuations; Recruitment; Atlantic tunas; Stochastic variations; Life history; Lifespan; Spawning stock biomass.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00194/30499/28909.pdf
Imagem não selecionada

Imprime registro no formato completo
Clutch size in the small-sized lizard Eurolophosaurus nanuzae (Tropiduridae): does it vary along the geographic distribution of the species? Iheringia, Sér. Zool.
Galdino,Conrado A. B; Sluys,Monique Van.
We studied life history traits of females of the lizard Eurolophosaurus nanuzae (Rodrigues, 1981), an endemic species of rock outcrop habitats in southeastern Brazil. During October 2002 and 2003 we sampled three populations in sites that encompass the meridional portion of the geographic range of the species. Clutch size varied from one to three eggs, with most females carrying two eggs. Clutch size did not vary among populations, but was correlated to female body size. Only larger females produced clutches of three eggs. Females of the small-sized E. nanuzae produce eggs as large as those of medium-sized tropidurids, thus investing a considerable amount of energy to produce clutches resulting in high values of relative clutch mass.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Life history; Interpopulational variation; Squamata.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000100008
Imagem não selecionada

Imprime registro no formato completo
Comparison in waterborne Cu, Ni and Pb bioaccumulation kinetics between different gammarid species and populations: Natural variability and influence of metal exposure history ArchiMer
Urien, N.; Farfarana, A.; Uher, E.; Fechner, Lise; Chaumot, A.; Geffard, O.; Lebrun, J. D..
Kinetic parameters (uptake from solution and elimination rate constants) of Cu, Ni and Pb bioaccumulation were determined from two Gammarus pulex and three Gammarus fossrum wild populations collected from reference sites throughout France in order to assess the inter-species and the natural inter-population variability of metal bioaccumulation kinetics in that sentinel organism. For that, each population was independently exposed for seven days to either 2.5 mu g L-1 Cu (39.3 nM), 40 mu g L-1 Ni (681 nM) or 10 mu g L-1 Pb (48.3 nM) in laboratory controlled conditions, and then placed in unexposed microcosms for a 7-day depuration period. In the same way, the possible influence of metal exposure history on subsequent metal bioaccumulation kinetics was...
Tipo: Text Palavras-chave: Amphipods; Trace metals; Life history; Kinetic parameters; Inter-population variability.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00417/52840/54270.pdf
Imagem não selecionada

Imprime registro no formato completo
Critique of some practices in life-history studies, with special references to harpacticoid copepods OMA
Bergmans, M..
Published studies on the demography and reproductive strategies of harpacticoid copepods are examined critically. At the technical level, the popular approximation <i>r</i> = ln R<sub>0</sub>/T<sub>c</sub> is shown to be inappropriate as an estimate of the intrinsic rate of increase of harpacticoids. It leads to a systematic underestimation, by 8-29%, for life histories typical of fast-breeding species. Various <i>ad hoc</i> variants of <i>r</i> and <i>R<sub>0</sub></i> calculations occurring in the literature are also criticized. At the conceptual level, a more discriminating approach to life-history characteristics is necessary; this applies both to the assessment of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Life history; Copepoda [copepods].
Ano: 1984 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3311
Imagem não selecionada

Imprime registro no formato completo
Development of Myrmeleon brasiliensis (Navás) (Neuroptera, Myrmeleontidae), in laboratory, with different natural diets Zoologia
Missirian,Giani L. B.; Uchôa-Fernandes,Manoel A.; Fischer,Erich.
Antlions larvae are sit-and-wait predators that capture arthropod prey in conical sand pits. The aim of this paper were to determine the effect of different natural diets [leaf-cutting ants (Atta spp.), fruit fly larvae (Anastrepha spp. and Ceratitis capitata) and mixed diet (Atta spp. plus fruit fly larvae)] on the development of larvae and pupae of M. brasiliensis (Navás, 1914) and to estimate the number and size of prey caught in each instar and on each kind of diet. The average duration (days) of the second and third instars of M. brasiliensis was longer when larvae of antlion were fed with leaf-cutting ants. The diets did not affect the duration of the pupal stage nor the pupae size. The different diets did not affect the mean width of head capsule...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antlion; Life history; Predation.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000400009
Imagem não selecionada

Imprime registro no formato completo
Disease, food and reproduction of the maned wolf: Chrysocyon Brachyurus (Illiger) (Carnivora, Canidae) in southeast Brazil Zoologia
Carvalho,Cory T. de; Vasconcellos,Luiz E. M..
The most frequent endoparasite of the Maned wolf - Chrysocyon brachyurus (Illiger, 1815) is the giant kidney-worm. Dioctophyma renale (Goeze, 1782). It has heen responsible for the majority of deaths of captive animals. Twenty-six marked wolves have been followed in the field with ear-tags and radio-collar tagged (Tab. II) to investigate their interactions with the environment, their diurnal shelters, movements and habits, and their delivery sites. Ten years of life history data have heen gathered. They are territorial and monogamous, and give birth to two or three young once a year, after a 63 days gestation, on average. Maned wolves inhabit the open areas and have omnivorous feeding habits.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Maned wolf; C. brachyurus; Life history; Disease; Food; Reproduction.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300018
Imagem não selecionada

Imprime registro no formato completo
Distribución, abundancia y estacionalidad de Liriope tetraphylla (Hidromedusa, Trachymedusae) en el Océano Atlántico Sudoccidental y su rol ecológico en el estuario del Río de la Plata OceanDocs
Gaitán, E.N..
In zones of high productivity and/or in shallow waters (frontal or upwellings areas, bays and estuaries) the hydromedusae can reach exceptional abundances, denominated 'blooms'. Occasionally, these exceptional abundances are originated from some few individuals that constitute a 'seed population', which is retained in particular places while the environmental conditions are adverse. Liriope tetraphylla is a holoplanktonic and oceanic hydromedusae that often is found forming dense aggregations, which are developed mainly in the Buenos Aires coast during the summer in Argentinian waters (SW Atlantic). The temporal-space distribution and the abundance of L. Tetraphylla in the Subantarctic region were analyzed, with 1458 samples embracing the Argentinian and...
Tipo: Theses and Dissertations Palavras-chave: Ecological aggregations; Geographical distribution; Abundance; Seasonal variations; Life history.
Ano: 2004 URL: http://hdl.handle.net/1834/5029
Imagem não selecionada

Imprime registro no formato completo
Does the concept of spawning per recruit make sense? ArchiMer
Rochet, Marie-joelle.
Density dependence means that exploited fish populations exhibit earlier maturity, a faster growth rate, increased fecundity and reduced egg size. Here, the consequences of these effects on population dynamics, the estimation of spawning biomass per recruit and associated biological reference points are examined by a simulation model. The model is a self-regenerating model in which the population parameters (age at maturity, growth, fecundity, egg size) vary according to three classes of population abundance. Early life stages are characterized by a size-dependent growth and mortality model. It is concluded that spawning per recruit is an ambiguous concept because, if density dependence occurs in the adult population, the spawning biomass of a cohort is...
Tipo: Text Palavras-chave: Teleost fishes; Population dynamics; Life history; Density dependence; Biological reference points.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/publication-485.pdf
Imagem não selecionada

Imprime registro no formato completo
Early Iron Working People's Adaptation to the Nearshore and Offshore Island Environment OceanDocs
Chami, F..
Tanzanian researchers of the on-going SAREC/Sida-sponsored project on Human Responses and Contribution to Environmental Change (HRAC) have focused their research on a narrow strip of the central coast of Tanzania. The area under investigation is specifically between Kisiju to the north and the Rufiji Delta to the south. Survey work was also extended to the off-shore islands including Kwale, Koma and Mafia. The preliminary intention was to look for sites that could provide light to the whole question of environmental change and its human contribution.
Tipo: Journal Contribution Palavras-chave: Environments; Life history.
Ano: 1998 URL: http://hdl.handle.net/1834/278
Imagem não selecionada

Imprime registro no formato completo
Estrategia reproductiva de la saraca, Brazilian menhaden, Brevoortia aurea (Pisces: Clupeidae), en el estuario del Río de la Plata OceanDocs
Acha, E.M..
The Brazilian menhaden, Brevoortia aurea, is the only species of genus Brevoortia in South American Atlantic waters, being abundant in the Rio de la Plata estuary. The temporal and spatial reproductive pattern of this menhaden was analyzed in relation to the major hydrographic features of the region, and the reproductive biology was studied by using histological analysis of ovaries. B.aurea is a multiple spawner with indeterminate annual fecundity. Daily spawning activity was mostly in the afternoon (15:00 - 16:00),based on the incidence of females with both hydrated oocytes and postovulatory follicles. Spawning frequency, determined using the percentage of females with postovulatory follicles, was about 12. during November. At this frequency, each...
Tipo: Theses and Dissertations Palavras-chave: Reproduction; Fecundity; Ovaries; Fish larvae; Eggs; Life history; Brackishwater fish; Spawning grounds; Spawning seasons; Estuaries; Estuaries; Ovaries; Eggs; Life history; Spawning grounds; Reproduction; Fecundity; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_5456; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_12170; Http://aims.fao.org/aos/agrovoc/c_7277; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_2924.
Ano: 1999 URL: http://hdl.handle.net/1834/1458
Imagem não selecionada

Imprime registro no formato completo
Functional reorganization of marine fish nurseries under climate warming ArchiMer
Mclean, Matthew J.; Mouillot, David; Goascoz, Nicolas; Schlaich, Ivan; Auber, Arnaud.
While climate change is rapidly impacting marine species and ecosystems worldwide, the effects of climate warming on coastal fish nurseries have received little attention despite nurseries’ fundamental roles in recruitment and population replenishment. Here, we used a 26‐year time series (1987–2012) of fish monitoring in the Bay of Somme, a nursery in the Eastern English Channel (EEC), to examine the impacts of environmental and human drivers on the spatial and temporal dynamics of fish functional structure during a warming phase of the Atlantic Multidecadal Oscillation (AMO). We found that the nursery was initially dominated by fishes with r‐selected life‐history traits such as low trophic level, low age and size at maturity, and small offspring, which...
Tipo: Text Palavras-chave: Atlantic Multidecadal Oscillation; Climate change; Ecosystem function; English Channel; Fisheries; Functional traits; Life history; Recruitment.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00471/58276/60818.pdf
Imagem não selecionada

Imprime registro no formato completo
Growth of the Silverside Atherinella brasiliensis in Tramandaí Estuary, Southern Brazil (Actinopterygii: Atherinopsidae) Neotropical Ichthyology
Bervian,Giovana; Fontoura,Nelson F..
The growth of Atherinella brasiliensis (Quoy &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
Registros recuperados: 50
Primeira ... 123 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional