Results 11 to 20 of about 602,964 (180)

[Trofeo Región 1975] [Material gráfico] [PDF]

open access: yes, 1975
Ninguna de las fotos indica autoríaContiene fotografías pertenecientes al archivo fotográfico del diario "Región", publicadas hacia ...
Diario Región (Oviedo)
core   +4 more sources

PRIMER REGISTRO DE UNA ABERRACIÓN MARRÓN PARA EL CORMORÁN NEOTROPICAL NANNOPTERUM BRASILIANUM DE MÉXICO [PDF]

open access: yes, 2023
En esta nota, reportamos un caso de aberración del plumaje en el cormorán neotropical Nannopterum brasilianum. Se registró la presencia de un color atípico en el plumaje de un individuo observado en un humedal del norte de México.
Marinez-Guerrero, Jose Hugo   +3 more
core   +1 more source

BIRD COMMUNITIES ALONG URBANIZATION GRADIENTS: A COMPARATIVE ANALYSIS AMONG THREE NEOTROPICAL CITIES [PDF]

open access: yes, 2017
∙ Urbanization is expanding continuously over rural and natural areas and it is imperative to analyze its effect on bird communities. Although the impact of urbanization on bird communities in the Neotropical region has been explored by several authors ...
Villegas, Mariana   +4 more
core   +2 more sources

[Trofeo Región 1976] [Material gráfico] [PDF]

open access: yes, 1976
Ninguna de las fotos indica autoríaContiene fotografías pertenecientes al archivo fotográfico del diario "Región", publicadas hacia ...
Diario Región (Oviedo)
core   +1 more source

PREFORMATIVE WING MOLT IN 23 NEOTROPICAL RESIDENT PASSERINE SPECIES [PDF]

open access: yes, 2018
∙ Quantitative descriptions of wing‐feather replacement during the preformative and prealternate molts of resident Neotropical passerines are deficient: no more than 100 species possess adequate information. Here, we present quantitative molt data for 23
Guallar, Santi Xavier   +3 more
core   +2 more sources

[Trofeo Región 1974] [Material gráfico] [PDF]

open access: yes, 1974
Ninguna de las fotos indica autoríaContiene fotografías pertenecientes al archivo fotográfico del diario "Región", publicadas hacia ...
Diario Región (Oviedo)
core   +1 more source

[Trofeo Región] [Material gráfico] [PDF]

open access: yes, 1967
Algunas fotos no indican autoría; el resto firmadas por Foto Sierra (Oviedo)Contiene fotografías pertenecientes al archivo fotográfico del diario "Región", publicadas entre 1967 y ...
Diario Región (Oviedo)   +1 more
core   +1 more source

USING MORPHOMETRICS TO DETERMINE SEX IN A NEOTROPICAL PASSERINE: THE GRAY‐BREASTED WOOD‐WREN (HENICORHINA LEUCOPHRYS) [PDF]

open access: yes, 2017
∙ Sexual size dimorphism is a widespread pattern among birds, but has remained untested for many Neotropical species. Here we examine sexual differences in a relatively common passerine that is found from Mexico to Bolivia, the Gray‐breasted Wood‐Wren ...
Pérez-Emán, Jorge L   +1 more
core   +2 more sources

Annotated keys to the species of Megaspilidae (Hymenoptera: Ceraphronoidea) of the Neotropical Region

open access: yesEntomoBrasilis, 2017
. A key to the species of Megaspilidae occurring in Neotropical Region is given, and information on the 20 species in four genera is provided, including data on their distribution and host associations. The Megaspilidae fauna is still poorly known in the
Cleder Pezzini, Andreas Köhler
doaj   +1 more source

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia   +9 more
wiley   +1 more source

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