Results 71 to 80 of about 76,170 (190)

A new, conspicuously pigmented Pyrrhulina (Teleostei: Characiformes: Lebiasinidae) from the Río Tigre, Loreto, Peru

open access: yesJournal of Fish Biology, EarlyView.
Abstract A new species of Pyrrhulina is described based on morphological and molecular evidence. Pyrrhulina punctata is distinguished from all congeners by the presence of a series of 7 to 16 irregular blotches of dark pigmentation on the flanks, equally marked in juveniles and adult specimens, the presence of 26–28 lateral‐line scales, 17–21 maxillary
Andre Netto‐Ferreira   +4 more
wiley   +1 more source

Revisão sobre os Morcegos do Arquipélago dos Açores : contribuição para a sua conservação [PDF]

open access: yes, 2012
XV Expedição Científica do Departamento de Biologia - São Jorge 2011.Nos Açores têm ocorrido, pelo menos, três espécies de morcegos Nyctalus azoreum (morcego dos Açores); Myotis myotis (morcego-rato-grande) e Pipistrellus maderensis (morcego da Madeira).
Lopes, Mónica, Medeiros, Fátima
core  

Espécies exóticas invasoras em unidades de conservação federais do Brasil

open access: yesBiodiversidade Brasileira, 2014
Invasões biológicas estão entre as principais causas de perda de biodiversidade. Mesmo áreas protegidas têm sofrido sérias consequências das invasões biológicas, como a alteração da composição de espécies e dos processos ecossistêmicos, e em casos ...
Alexandre Bonesso Sampaio   +1 more
doaj   +3 more sources

Occurrence of multiple congenital anomalies in Potamotrygon amandae (Elasmobranchii, Potamotrygoninae) embryos, including the first report of bicephaly

open access: yesJournal of Fish Biology, EarlyView.
Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro   +2 more
wiley   +1 more source

The effect of habitat fragmentation in the diet of pine marten [PDF]

open access: yes, 2012
Tese de mestrado. Biologia (Biologia da Conservação). Universidade de Lisboa, Faculdade de Ciências, 2012The european pine marten Martes martes (Linnaeus 1758) is a member of the Mustelidae family, comprising such members as weasels, stoats, polecats ...
Mestre, Henrique Marques, 1988-
core  

Time‐calibrated relationships of a rare cave catfish (Trichomycterus rubbioli): Shedding light on troglobitic lifestyle origin in the Brazilian caatinga

open access: yesJournal of Fish Biology, EarlyView.
Abstract Catfishes of the subfamily Trichomycterinae comprise the most diverse fish group with species adapted to live in Neotropical caves, but past evolutionary scenarios that have driven the origin of these troglobitic species remain unknown. We herein investigate the phylogenetic position of the cave‐restricted Trichomycterus rubbioli, endemic to ...
Wilson J. E. M. Costa   +6 more
wiley   +1 more source

Alguns aspectos da avifauna da Ilha de Santa Maria. [PDF]

open access: yes, 1991
V Expedição Científica do Departamento de Biologia – Santa Maria e Formigas 1990.0s objectivos da presente expedição foram os seguintes: 1) observação de espécies residentes e migratórias; 2) obtenção de dados sobre a distribuição de Calonectris diomedea
Akers, Peter   +3 more
core  

A new species of inseminating catfish of the genus Tympanopleura (Siluriformes: Auchenipteridae) from the Ituxi River, Amazon River basin, northern Brazil, revealed by integrative taxonomy

open access: yesJournal of Fish Biology, EarlyView.
Abstract A new species of the genus Tympanopleura is described from the Iquiri River, a tributary of the Ituxi River, a right‐bank tributary to the Purus River, Amazon River, northern Brazil. The new species is distinguished from all its congeners by a combination of features, such as the presence of an intensely pigmented square‐shaped blotch on the ...
Frank Raynner V. Ribeiro   +4 more
wiley   +1 more source

Conservação dos vertebrados terrestres na ilha de Santa Maria [PDF]

open access: yes, 2010
XIV Expedição Científica do Departamento de Biologia - Santa Maria 2009.A ilha de Santa Maria é a mais antiga dos Açores apresentando extensas formações de origem sedimentar (com mais de 8 milhões de anos) onde se podem encontrar fósseis marinhos.
Fonseca, Amélia   +6 more
core  

The role of edaphic environment and climate in structuring phylogenetic pattern in seasonally dry tropical plant communities [PDF]

open access: yes, 2015
This study was made possible through the kind financial support of the São Paulo Research Foundation - http://fapesp.br/en (Fundação de Amparo à Pesquisa do Estado de São Paulo - Fapesp 2013/15280-9).Seasonally dry tropical plant formations (SDTF) are ...
Araújo, Francisca Soares de   +5 more
core   +5 more sources

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