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| Registros recuperados: 39 | |
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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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| Araldi,Rodrigo Pinheiro; Assaf,Suely Muro Reis; Carvalho,Rodrigo Franco de; Carvalho,Márcio Augusto Caldas Rocha de; Souza,Jacqueline Mazzuchelli de; Magnelli,Roberta Fiusa; Módolo,Diego Grando; Roperto,Franco Peppino; Stocco,Rita de Cassia; Beçak,Willy. |
| Abstract In the last decades, a group of viruses has received great attention due to its relationship with cancer development and its wide distribution throughout the vertebrates: the papillomaviruses. In this article, we aim to review some of the most relevant reports concerning the use of bovines as an experimental model for studies related to papillomaviruses. Moreover, the obtained data contributes to the development of strategies against the clinical consequences of bovine papillomaviruses (BPV) that have led to drastic hazards to the herds. To overcome the problem, the vaccines that we have been developing involve recombinant DNA technology, aiming at prophylactic and therapeutic procedures. It is important to point out that these strategies can be... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine papillomavirus (BPV); Bovine papillomatosis; Carcinogenesis; Natural history. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100002 |
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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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| 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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| 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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| Oliveira,Otto M. P.; Marques,Antonio C.. |
| The ecology of Eudendrium spp. from the Brazilian coast is poorly known, although it already proved to be useful and important as a tool to solve some taxonomical problems of the genus. The seasonality and reproduction patterns of a population of Eudendrium caraiuru Marques & Oliveira, 2003 were studied. Data were sampled from test panels immersed in the water off Cabelo Gordo de Dentro beach, in São Sebastião Channel, Southeastern Brazil, from July 1999 to July 2000, every three months. Eudendrium caraiuru was active throughout the study period. Reproductive peaks of the species were regulated by cold and low-salinity water, although part of the population always bore mature gonophores. In addition to morphological differences, ecological... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Population biology; Ecology; Natural history; Eudendrium caraiuru. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212005000300003 |
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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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| Tarifa,Teresa; Azurduy,Carola; Vargas,Renzo R.; Huanca,Noemí; Terán,Jehizon; Arriaran,Greissy; Salazar,Claudia; Terceros,Lenny. |
| We report four opportunistic field observations of a species of Abrocoma in Polylepis besseri woodlands in Cochabamba Department, Bolivia. These observations suggest four significant aspects of Abrocoma sp. natural history: 1) they have arboreal activity, 2) they may be specialized herbivores that feed on Polylepis leaves, 3) they have diurnal activity, and 4) they have docile behavior. These observations represent the first descriptions of aspects of the behavior and ecology of an abrocomid in Bolivia, and also suggest that Polylepis woodlands, a threatened Andean habitat, may provide an important habitat for specialized mammal herbivores such as Abrocoma sp. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Abrocoma; Bolivia; Natural history; Polylepis woodlands. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832009000100026 |
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| Vardy, C.R.. |
| In this Part, 37 species of the genus, belonging to eight species-groups, are described and figured, and their phylogenetics and biogeography are discussed. Seven of the species are described as new: P. ecuadorae, friburgensis, marthae, onorei, pulawskii, riopretensis, yucatani. One species-name, P. tolteca Lucas, 1895, is recalled from synonymy and one name, P. lycaon Banks, 1945, is upgraded from varietal to species status. The following 49 names are newly synonymized (valid names first): P. grossa (Fabricius, 1798) = P. formosus Say, 1823, P. affinis Dahlbom, 1845, P. obliquerugosa Lucas, 1895, P. nephele Lucas, 1895, P. theresiae Kriechbaumer, 1900, P. colombica Brèthes, 1926, P. pattoni Banks, 1945, P. pellita Haupt, 1952; P. aquila Lucas, 1895 = P.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Spider-hunting wasps; Pompilidae; Pepsis; Systematic revision; New species; Mimicry; Neotropical; Natural history; 42.75. |
| Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/220200 |
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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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| Martins, M.; Oliveira, M.E.. |
| Taxonomic and natural history data are presented on eight species of Atractus from the Manaus region, central Amazonia, Brazil, namely: A. alphonsehogei, A. latifrons, A, major, A. poeppigi, A. schach, A. snethlageae, A. torquatus, and A. trilineatus. Four of these species are recorded for the first time for the region, which indicates the scarcity of snake collections in central Amazonia. Apresentamos dados sobre a taxonomia e a história natural de oito espéies de Atractus da região de Manaus, Amazônia central, Brasil: A. alphonsehogei, A. latifrons, A. major, A. poeppigi, A, schach, A. snethlageae, A. torquatus e A. trilineatus. Quatro destas espécies são registradas pela primeira vez para a região, o que indica a escassez de coletas de serpentes na... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Serpentes; Colubridae; Atractus; Taxonomy; Natural history; Central Amazonia; 42.82. |
| Ano: 1993 |
URL: http://www.repository.naturalis.nl/record/318525 |
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| Vardy, C.R.. |
| In this part the remaining 78 species of the genus Pepsis, belonging to ten species-groups, are described and figured, and their phylogenetics and biogeography are discussed. 14 of the species are described as new: P. achterbergi spec. nov., P. adonta spec. nov., P. boharti spec. nov., P. caliente spec. nov., P. dayi spec. nov., P. esmeralda spec. nov., P. ianthoides spec. nov., P. jamaicensis spec. nov., P. krombeini spec. nov., P. martini spec. nov., P. multichroma spec. nov., P. nanoides spec. nov., P. wahisi spec. nov., and P. willinki spec. nov. Three species-names, P. infuscata Spinola, 1841, P. lampas Lucas, 1895, and P. thoreyi Dahlbom, 1845, are recalled from synonymy. The following 293 names are newly synonymized (the valid names are listed... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Spider-hunting wasps; Pompilidae; Pepsis; Systematic revision; New species; Mimicry; Neotropical; Natural history; 42.75. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/210789 |
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| Vardy, C.R.. |
| The genus Pepsis is diagnosed and described, and its taxonomic and natural history reviewed. The following are newly synonymized under this genus: the genera Abripepsis Banks, 1946 and Brethesia Schrottky, 1909; and all the existing subgenera of Pepsis, viz. Chrysopepsis Haupt, 1952; Cirripepsis Banks, 1945 & 1946; Deropepsis Banks, 1946; Dinopepsis Banks, 1945; Dinopepsis Haupt, 1952; Giganteopepsis Lucas, 1919 of Pate, 1946; Gigantopepsis Lucas, 1919; Nannopepsis Banks, 1945 & 1946; Ovatopepsis Haupt, 1952; Stenopepsis Banks, 1945; Titanopepsis Haupt, 1952; and Trichopepsis Banks, 1945. The Pepsis rubra species-group, with 18 species, including the type-species of Pepsis, is defined and described; keys to both sexes are provided. In this group,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Spider-hunting wasps; Pompilidae; Pepsis; Systematic revision; New species; Neotropical; Natural history; 42.75. |
| Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/219443 |
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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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| 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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| 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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| Registros recuperados: 39 | |
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