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| Registros recuperados: 39 | |
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| Moreira,Gilson R.P.; Brito,Rosângela; Isaias,Rosy M.S.; Silveira Jr,JorgeL.; Gonçalves,Gislene L.. |
| Abstract Antispastis Meyrick, 1926 is a poorly known genus of leaf-mining micromoths endemic to the Neotropics, with still uncertain taxonomic position within the Yponomeutoidea. In the present study, the egg, larva and pupa of A. clarkei Pastrana, previously known only from Argentina, are described and illustrated with the aid of optical and scanning electron microscopy. Data on life history, including histology of the mine, are also provided. Family placement of the genus is reassessed based on comparison of morphology and DNA sequences with closely related lineages. The larvae form blotch mines on the upper surface of Solanum L. (Solanaceae) leaves, feeding on palisade parenchyma in all instars. Pupation occurs outside the mine, in an inverted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaf-mining moths; Glyphipterigids; Acrolepiinae; Neotropical region; Natural history. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000200183 |
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| Gonzalez-Filho,Hector M.O.; Lucas,Sylvia M.; Brescovit,Antonio D.. |
| The Neotropical Sasoninae Neodiplothele Mello-Leitão, 1917 is revised and now includes eight species. Neodiplothele can be distinguished from other Sasoninae by the absence of the posterior median spinnerets and differs Neotropical relatives as Cosmopelma by the absence of cuspules on coxae of leg I and Paracenobiopelma by the absence of cuspules on the labium. The male of N. irregularis Mello-Leitão, 1917 and N. picta Vellard, 1924 are described and illustrated for the first time. Neodiplothele leonardosi Mello-Leitão, 1939 is considered a junior synonym of N. irregularis. Five new species are described from Brazil: N. aureus sp. nov. from the states of Ceará, Rio Grande do Norte, Paraíba, and Minas Gerais, N. itabaiana sp. nov. from Sergipe, N. martinsi... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Natural history; Neotropical region; Sasoninae; Taxonomy; Trapdoor spider. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000300225 |
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| Quintela,Fernando Marques; Loebmann,Daniel. |
| ABSTRACT Lygophis flavifrenatus Cope, 1862 is a terrestrial dispsadid distributed in subtropical Brazil, Paraguay, Uruguay, and Argentina. Herein, we present data on sexual dimorphism and reproductive biology of this very poorly studied species. A total of 108 specimens (55 females, 50 males, three hatchlings with unidentified sex) from Brazilian states of Rio Grande do Sul, Santa Catarina and Mato Grosso do Sul were analyzed. Sexual dimorphism by size, body dimensions (tail length, head length, head width) and a number of ventral and subcaudal scales is not well marked in the species. Mature females attain the greater size and have a higher number of ventral scales than mature males. Mature males, in turn, presented longer tail, longer and wider head and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Natural history; Neotropical region; Subtropical domain; Squamata. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100210 |
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| Gasper,André Luís de; Stehmann,João Renato; Roque,Nádia; Bigio,Narcísio C.; Sartori,Ângela Lúcia Bagnatori; Grittz,Guilherme Salgado. |
| ABSTRACT Herbaria represent irreplaceable repositories of biodiversity and are used to answer questions about conservation, ecology, systematics, and other sciences. In this sense, we characterize the infrastructure, human resources, and idiosyncrasies of Brazilian herbaria. To achieve this goal, curators were sent a structured and standardized questionnaire to gather information about herbaria. The Brazilian Herbaria Network listed 216 active herbaria in the year 2018, of which 139 answered the questionnaire. These herbaria hold 6,741,469 samples in their collections and more than 39,000 type samples. Most herbaria are in federal universities (40.28 %). Only 24 % of the curators considered that their herbarium is valued by their institutions and 52 %... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Biological collections; Natural history; Public policies. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200352 |
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| Ferretti,Nelson; Barneche,Jorge. |
| Two new species of Plesiopelma Pocock, 1901 from northern Argentina are described and diagnosed based on males and habitat descriptions are presented. Males of Plesiopelma paganoi sp. nov. differ from most of species by the absence of spiniform setae on the retrolateral face of cymbium, aspect of the palpal bulb. Plesiopelma aspidosperma sp. nov. differs from most species of the genus by the presence of spiniform setae on the retrolateral face of cymbium and it can be distinguished from P. myodes Pocock, 1901, P. longisternale (Schiapelli & Gerschman, 1942) and P. rectimanum (Mello-Leitão, 1923) by the separated palpal bulb keels and basal nodule of metatarsus I very developed. It differs from P. minense (Mello-Leitão, 1943) by the shape of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomy; Spiders; Natural history; Neotropical; Yungas. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000400007 |
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| QUINTELA,FERNANDO M.; LOEBMANN,DANIEL. |
| Abstract: Herein we investigated diet, sexual dimorphism and reproductive biology of two sympatric congeneric species at the coastal Brazilian Pampa, Philodryas aestiva and P. patagoniensis. Analysis of the stomach content of the scansorial Philodryas aestiva revealed that it feeds mainly on Anura and small mammals, while it occasionally consumes Insecta, Squamata and Aves. The more terrestrial Philodryas patagoniensis presented a broader diet, composed mainly of Anura, Squamata and small mammals. Insecta and Actinopterygii were found in lower frequencies. In females of both species, snout-vent length was significantly larger than in males, while tail length/snout-vent length ratio was significantly higher in males. Males reach sexual maturity at smaller... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding habits; Natural history; Neotropical snakes; Fecundity; Reproductive cycle. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100633 |
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| Beltrán Rodríguez, Leonardo Alejandro. |
| Hintonia latiflora “quina amarilla” habita en el Bosque Tropical Caducifolio, es medicinal por lo que se comercializa la corteza interna. La recolecta es excesiva y las poblaciones están cada vez más distantes y escasas. No se cuenta con información biológica, ecológica y social que permita establecer criterios para la gestión y conservación de la especie, por ello, el presente estudio se desarrolló en Tlalcozotitlán, Guerrero, el sitio de cosecha comercial de quina. Se documentó la historia natural y antropógena de H. latiflora sustentada en la literatura científica y en observaciones de campo; se investigó la estructura poblacional, la influencia de la cosecha de corteza sobre caracteres arquitectónicos, reproductivos y en la densidad, además, se... |
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Palavras-chave: Quina amarilla; Historia natural; Factores físicos; Estructura poblacional; Corteza medicinal; Gestión comunitaria; Yellow quina; Natural history; Physical factors; Population structure; Medicinal bark; Community management; Botánica; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2183 |
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| Azevedo,Pedro G; Melo,Rafael M. C; Young,Robert J.. |
| Knowledge concerning the behavior of wild freshwater fishes in Brazil is restricted to a few studies, despite such studies being able to answer fundamental questions about conservation. Species of Brycon are amongst the most threatened in the Neotropics, particularly in southeast Brazil, due to anthropogenic activities in this region. This study investigated the feeding and social behaviors of the endangered fish, Brycon devillei in the Preto River, Jequitinhonha basin, Minas Gerais State, Brazil. Behavioral data were collected by snorkeling with four spatially separated groups (habituated), and direct observations of shoals were made using an underwater video camera (a total of 448 hours of observations). This species showed diverse tactics to obtain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding association; Feeding tactics; Jequitinhonha basin; Natural history; Underwater observations. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400011 |
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| Bernardo-Silva,Jorge S.; Von-Mühlen,Eduardo M.; Di-Bernardo,Marcos; Ketterl,Jochen. |
| We analyzed the alimentary tract of 66 specimens of Amphisbaena munoai Klappenbach, 1969 from the Serra do Sudeste, state of Rio Grande do Sul, southern Brazil. Forty specimens (60.6%) had prey items in their gut. The diet consisted mainly of small invertebrate prey, such as termites, insect larvae and ants. The most abundant prey item was termites, found in 62.5% of the non empty stomachs. The high number of individual prey items in the majority of stomachs, the small size of the regular prey items, and the absence of gut content in specimens of A. munoai kept alive for about two days, indicate that this species forages very frequently. The predominance of fossorial prey items and the occasional records of nomadic ants lead us to suggest that A. munoai... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphisbaena munoai; Diet; Feeding behavior; Natural history; Southern Brazil. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000400014 |
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| Brejão,Gabriel Lourenço; Gerhard,Pedro; Zuanon,Jansen. |
| This study aimed to describe the functional organization of the ichthyofauna of forest streams from northeastern Pará State, Brazil, based on behavioral observation of species' feeding tactics. Seven streams were sampled between June and November, 2010, during snorkeling sessions, totaling 91h 51min of visual censuses at day, dusk, and night periods. Seventy three species distributed in six orders, 26 families and 63 genera were observed, with dominance of Characiformes, followed by Siluriformes. From information gathered by ad libitum observations, each species was included in one of 18 functional trophic groups (FTGs), according to two main characteristics: (1) its most frequently observed feeding tactic; and (2) its spatial distribution in the stream... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding tactics; Natural history; Snorkeling. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200361 |
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| Yahnke,Christopher J.. |
| I conducted a small mammal trapping study in the central Paraguayan Chaco region of South America to investigate habitat selection by small mammals at different spatial scales. Small mammals were collected in forest, successional thorn scrub, pasture, and crop fields representing both relatively undisturbed habitats and agroecosystems. A total of 1089 small mammals representing 13 species were captured during 23 296 trap nights. Pastures had the highest species richness as well as the highest number of captures. Some small mammal species such as Calomys laucha and Akodon toba were captured in a variety of habitats whereas others like Holochilus chacarius and Bolomys lasiurus were captured almost exclusively in pastures. Principal components analysis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chaco; Habitat selection; Natural history; Paraguay; Small mammals. |
| Ano: 2006 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832006000100008 |
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| Nederbragt, H.; Heerlien, M.. |
| The STERNA project mainly focuses on enrichment of existing content of content holding organisations in the natural history domain. Therefore, developing a methodology on how to best integrate one’s content into the STERNA information space is an essential part of the project. This document is the outcome of that developing process. It describes in detail a six-step procedure on how to go about content selection, how to submit the necessary information to enable our technology providers to develop a domain-specific data model that incorporates all the required parts, and how to approach the actual content enrichment process. In addition, this document contains three annexes that focus on data modelling in STERNA, on relevant examples of content items in... |
| Tipo: Report |
Palavras-chave: STERNA; Semantic web; Content enrichment; Metadata; RNA Toolset; Data modelling; Natural history; 06.70. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/436490 |
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| ALMEIDA,C. E.; RAMOS,E. F.; GOUVÊA,E.; CARMO-SILVA,M. do; COSTA,J.. |
| Ctenus medius Keyserling, 1891 is a common species in several spots of Mata Atlântica, however there is a great lack of studies in all aspects of its natural history. This work aims to elucidate aspects of ecotope preference compared to large spiders, and to provide data on the development of chromatic patterns during its life cycle. The observations on the behavior of C. medius were done in the campus of Centro Universitário de Barra Mansa (UBM) by means of observations and nocturnal collections using cap lamps. For observations on the development of chromatic patterns, spiderlings raised in laboratory, hatched from an oviposition of a female from campus of UBM, and others spiderlings collected in field were used. The field observations indicate that: C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ctenus medius; Ctenidae; Natural history. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000300015 |
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| Gisloti,Laura Jane; Uchoa,Manoel A.; Prado,Angelo. |
| Abstract Fruits of thirty-five cultivated native plant species (19 orders and 12 families) were sampled in farms of fruit production from two municipalities of São Paulo state, Brazil (January 2010 to March 2012) to evaluate species diversity of Neosilba flies. Thirty-one species of plants were the host for Neosilba species while four were not infested. Some aspects of the biology and patterns of species diversity, abundance, infestation rates, puparias viability and the interactions among species of frugivorous flies and their host plants were quantified. Seven species of Neosilba were reared: Neosilba bella Strikis & Prado (4 hosts), Neosilba certa (Walker) (4 hosts), Neosilba glaberrima (Wiedemann) (5 hosts), Neosilba inesperata Strikis & Prado... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hosts; Lance Flies; Lonchaeid; Natural history. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000100203 |
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| Registros recuperados: 39 | |
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