Results 41 to 50 of about 26,564 (119)

Estrutura morfológica do fígado de tambaqui Colossoma macropomum (Cuvier, 1818)

open access: yesPesquisa Veterinária Brasileira, 2012
Este trabalho teve como objetivo descrever macro e microscopicamente o fígado do Tambaqui Colossoma macropomum, Teleósteo de água doce da Família Characidae, de grande interesse econômico da bacia Amazônica.
Gerlane de Medeiros Costa   +5 more
doaj   +1 more source

Towards Biocultural Conservation of Chilean Palm Landscapes: Expanding Perspectives from Historical Ecology

open access: yesLand
The Chilean palm (Jubaea chilensis) is an endangered and culturally important species from central Chile. We studied the Ocoa palm landscape (OPL), which is currently part of a protected area that harbors the largest Chilean palm population where local ...
Constanza Urresty-Vargas   +3 more
doaj   +1 more source

The Relationship between Grinnellian and Eltonian Niche Characteristics and Passerine Distribution across a Latitudinal Gradient

open access: yesDiversity
The degree to which Grinnellian and Eltonian niche characteristics influence species distribution may depend on latitude. Tropical regions are environmentally stable and resource-rich, whereas temperate regions are comparatively less environmentally ...
Erin E. Stukenholtz, Richard D. Stevens
doaj   +1 more source

Annotated checklist of cladocerans from La Venturosa lagoon with first report of Leydigiopsis curvirostris for Colombia

open access: yesRevista Peruana de Biología
Thirty-nine cladoceran species were recorded from La Venturosa lagoon in the Orinoquia region of Colombia. Of these, 17 species represent new records for the Meta Department, and Leydigiopsis curvirostris Sars, 1901 is reported for the first time in ...
Lourdes M.A. Elmoor-Loureiro   +5 more
doaj   +1 more source

A revision of Peltariosilis Wittmer (Coleoptera: Cantharidae), a surprisingly diverse Amazonian radiation

open access: yesPapéis Avulsos de Zoologia
PeltariosilisWittmer, 1952 is a South American Silinae genus characterised by the highly modified male pronotum and scutellum with a remarkable lamellar projection. Six species were previously recognised.
Gabriel Biffi, Michael Geiser
doaj   +1 more source

Prey selection by two benthic fish species in a Mato Grosso stream, Rio de Janeiro, Brazil

open access: yesRevista de Biología Tropical, 2011
Key to understand predator choice is the relationship between predator and prey abundance. There are few studies related to prey selection and availability. Such an approach is still current, because the ability to predict aspects of the diet in response
Carla Ferreira Rezende   +4 more
doaj  

A new species of Ummidia Thorell, 1875, from Útila Island, Honduras (Araneae: Halonoproctidae)

open access: yesActa Zoológica Lilloana
A new species of the charismatic mygalomorph genus Ummidia Thorell, 1875 is described from Utila Island, Honduras. Ummidia sukuhpaya sp. nov. represents the third species known from Honduras, and the first species known from Utila.
Alex M. Cubas-Rodríguez   +2 more
doaj   +1 more source

Description of the late- or last-instar larva of Ischyomius Chevrolat, with comments on the family placement of the genus (Coleoptera: Tenebrionoidea: Pythidae)

open access: yesPapéis Avulsos de Zoologia
Study of recently collected larvae of two species of Ischyomius Chevrolat, 1871 from Napo and Pichincha, Ecuador, tentatively identified as I. denticollis Champion, 1916 and I. singularis Chevrolat, 1871 confirm the classification of the genus Ischyomius
Darren A. Pollock, Jim McClarin
doaj   +1 more source

Redescription and validation of Bothriechis supraciliaris (Serpentes: Viperidae)

open access: yesRevista de Biología Tropical, 1998
The populations of pit vipers from South West CostaRica, have traditionally been identified as Bothriechis schlegelii(Berthold). However, in 1954 E. H. Taylor described one specimen fromthe area as a new subspecies, B.
Alejandro Solórzano   +3 more
doaj  

Threatened Neotropical Primates Harbor Genetically Diverse Hemoplasmas, Including Putative Novel Genotypes and Previously Unrecognized Host Associations. [PDF]

open access: yesMicroorganisms
Camêlo R   +9 more
europepmc   +1 more source

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