Results 31 to 40 of about 1,082,707 (151)

Seed dispersal by macaws shapes the landscape of an Amazonian ecosystem [PDF]

open access: yes, 2017
Seed dispersal is one of the most studied plant–animal mutualisms. It has been proposed that the dispersal of many large-seeded plants from Neotropical forests was primarily conducted by extinct megafauna, and currently by livestock.
Baños-Villalba, Adrián   +5 more
core   +2 more sources

State of the art of the knowledge of Chilean raptor birds: Present situation and future projections [PDF]

open access: yes, 2015
El creciente interés a nivel mundial por el estudio de las aves rapaces ha generado la necesidad de identificar las prioridades de investigación para así enfocar los esfuerzos de conservación sobre ellas. En Chile, las primeras investigaciones se inician

core   +1 more source

Carcass persistence and detectability : reducing the uncertainty surrounding wildlife-vehicle collision surveys [PDF]

open access: yes, 2016
Carcass persistence time and detectability are two main sources of uncertainty on roadkill surveys. In this study, we evaluate the influence of these uncertainties on roadkill surveys and estimates.
A Amaral   +77 more
core   +5 more sources

Evidence for West Nile Virus and Usutu Virus Infections in Wild and Resident Birds in Germany, 2017 and 2018 [PDF]

open access: yes, 2019
Wild birds play an important role as reservoir hosts and vectors for zoonotic arboviruses and foster their spread. Usutu virus (USUV) has been circulating endemically in Germany since 2011, while West Nile virus (WNV) was first diagnosed in several bird ...
Eiden, Martin   +19 more
core   +2 more sources

Fruit consumption and seed dispersal of Caryocar brasilense (Caryocaraceae) by Caracara plancus (Falconidae).

open access: yesBrazilian journal of biology = Revista brasleira de biologia, 2020
The Southern Caracara (Caracara plancus) is a widely distributed species in South America, occurring from Bolivia to Northern Argentina (BirdLife International, 2016).
W. S. Paula   +2 more
semanticscholar   +1 more source

Las reducciones toledanas a pueblos de indios: Aproximación a un conflicto: El repartimiento de Macha (Charcas), siglo XVI [PDF]

open access: yes, 2006
La problemática de la reducción toledana a pueblos de indios se convierte en un factor central para comprender el devenir de las agrupaciones étnicas y el surgimiento de una nueva territorialidad andino colonial.
Jurado, Maria Carolina
core   +1 more source

Effects of severe floods and droughts on wildlife of the Pantanal wetland (Brazil) - a review [PDF]

open access: yes, 2012
Flooding throughout the Pantanal is seasonal. The complex vegetative cover and high seasonal productivity support a diverse and abundant fauna. A gradient in flood level supports a range of major habitats in a complex mosaic with annual seasonality.
Alho, Cleber José Rodrigues   +1 more
core   +2 more sources

Birds from cerradão woodland, an overlooked forest of the Cerrado region, Brazil [PDF]

open access: yes, 2011
The Cerrado region still receives relatively little ornithological attention, although it is regarded as the only tropical savanna in the world considered to be a biodiversity hotspot.
CAVARZERE, Vagner   +4 more
core   +3 more sources

Histological analysis of the tongue, esophagus and crop of Southern Carcará (Polyborus plancus)

open access: yes, 2021
The Southern Caracara is a bird of prey, of the family Falconidae, inhabits all the Brazilian territory, they are omnivorous birds adapted for hunting.
V. Franzo   +8 more
semanticscholar   +1 more source

Activity patterns of the vulnerable guiña (Leopardus guigna) and its main prey in the Valdivian rainforest of southern Chile [PDF]

open access: yes, 2017
The guiña (Leopardus guigna) is a small felid found primarily in temperate mixed forests of southern Andean and coastal ranges in Chile and Argentina. It is considered a vulnerable species, and is one of the least studied felids in the world.
Caro, Jesús   +3 more
core   +1 more source

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