Results 41 to 50 of about 1,082,707 (151)

Evaluación de la efectividad de las trampas de tipo “walk-in” para capturar una rapaz neotropical, el Chimango (Milvago chimango), en diferentes ambientes [PDF]

open access: yes, 2017
En muchos estudios sobre aves rapaces se requiere la captura de los individuos y la selección de la técnica de trampeo más efectiva puede ser crucial para alcanzar los objetivos del estudio.
Sarasola, José Hernán   +1 more
core  

Biological corridors are crucial habitat features that boost biodiversity in agroecological systems of Argentina

open access: yesEcological Solutions and Evidence, Volume 7, Issue 1, January–March 2026.
Our work shows for the first time in the region that biological corridors increase biodiversity and promote interactions between different components of the production system, using a methodology never before used in Argentina such as the Griffon index.
Paula Taraborelli   +4 more
wiley   +1 more source

Records of the Crowned Eagle (Urubitinga coronata) in Moxos plains of Bolivia and observations about breeding behavior [PDF]

open access: yes, 2012
The Crowned Eagle (Urubitinga coronata, Accipitridae) is a globally endangered raptor, endemic to central and southern South America. Little is known about this species in Bolivia and no nesting or prey data have been reported for the country until now ...
Berkunsky, Igor   +6 more
core  

Urban Green Spaces Set the Stage for Rare Interspecific Allopreening Between Crested Caracara (Caracara plancus) and Black Vultures (Coragyps atratus)

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
Observations in San Antonio, Texas documented rare interspecific allopreening between crested caracaras and black vultures at Phil Hardberger Park. This represents the first recorded instance of such behavior in an urban green space, expanding the known ecological and geographic scope of interspecies social interactions.
Lori Boies   +2 more
wiley   +1 more source

Cuatro Vientos: A Reconsideration of Seven Prehistoric Sites in the Lower Rio Grande Plains of South Texas [PDF]

open access: yes, 2010
With this report, Texas Department of Transportation (TxDOT) begins a reconsideration of approaches to the evaluation and treatment of those areas where surface lithic scatters are the main constituent of the archeological record. The reconsideration was
Caran, S. Christopher   +3 more
core   +3 more sources

Pedestrian Survey and NRHP Eligibility Testing of Sites within a Proposed Detention Facility in Webb County, Texas [PDF]

open access: yes, 2005
The Center for Archaeological Research (CAR) of The University of Texas at San Antonio was contracted by MACTEC Engineering & Consulting, Inc. (hereafter, MACTEC) to perform Phase I archaeological survey and Phase II testing prior to the construction of ...
Córdova, Karla J.   +4 more
core   +2 more sources

Birds, Ilha Grande, state of Rio de Janeiro, Southeastern Brazil [PDF]

open access: yes, 2009
We provide a list of bird species from our primary surveys and secondary data for an island (Ilha Grande) insoutheastern Brazil. The information derives mainly from primary data collected since 1995, particularly in the oceanicside of the island.
Alves, M. A. S., Vecchi, M. B.
core  

Movements of a juvenile Crowned Eagle (Harpyhaliaetus coronatus) tracked by satellite telemetry in central Argentina [PDF]

open access: yes, 2014
[Background] A juvenile Crowned Eagle was tagged at its nest with a satellite transmitter. The Crowned Eagle (Harpyhaliaetus coronatus) is one of the most unknown raptor species from the American continent.
Bechard, Marc J.   +3 more
core   +1 more source

RECORDS OF MOBBING BEHAVIOR IN VENEZUELAN WILD BIRDS [PDF]

open access: yes, 2023
Mobbing is a survival strategy in which birds attack enemies to drive them from the vicinity. This paper reports mobbing behavior events among wild bird species of Venezuela.
Verea, Carlos
core   +2 more sources

Past research and future directions in understanding how birds use their sense of smell

open access: yesIbis, Volume 167, Issue 4, Page 853-881, October 2025.
Our understanding of the functional importance of olfaction to birds has improved over the past 60 years, largely as the result of experimental studies testing how birds use their sense of smell in different contexts. As it is impossible to measure directly which odours birds can detect, we rely on measuring behavioural responses to scent cues or ...
Darcy Creece   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy