Results 41 to 50 of about 4,246 (251)

A case of predation of an Eurasian Eagle Owl by a Bonelli's eagle. [PDF]

open access: yes, 2016
Although some of these hypotheses are not mutually exclusive, in light of our field observations and experience with both species in the study area, we would favor the first hypothesis as food availability is low in our study area (P.
García Ripollés, Clara   +3 more
core   +3 more sources

Animal Scavenging and Scattering and the Implications for Documenting the Deaths of Undocumented Border Crossers in the Sonoran Desert, [PDF]

open access: yes, 2014
Since 1998, over 5500 people have died while attempting to cross the U.S.–Mexico border without authorization. These deaths have primarily occured in the Arizona desert.
Beck, Jess   +3 more
core   +1 more source

Vultures in the southeastern United States ingest more plastic in landscapes with more developed landcover

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionPlastics are found in ecosystems worldwide and can have widespread impacts on organisms and the environment. Cathartid vultures, including the black vulture (Coragyps atratus) and the turkey vulture (Cathartes aura), have adapted to urbanized
Hannah C. Partridge   +4 more
doaj   +1 more source

Spraying drones: efficacy of integrating an avian repellent with drone hazing to elicit blackbird flock dispersal and abandonment of sunflower fields

open access: yesWildlife Biology, EarlyView.
Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner   +2 more
wiley   +1 more source

The shapes of bird beaks are highly controlled by nondietary factors [PDF]

open access: yes, 2016
Bird beaks are textbook examples of ecological adaptation to diet, but their shapes are also controlled by genetic and developmental histories. To test the effects of these factors on the avian craniofacial skeleton, we conducted morphometric analyses on
Beecher   +10 more
core   +4 more sources

Global patterns and gaps in the study of terrestrial birds and mammals' use of freshwater sources: a mapping review

open access: yesWildlife Biology, EarlyView.
Water availability strongly influences the ecology of terrestrial birds and mammals. It will likely play an increasing role as a limiting factor as climate change and human demand make water availability scarcer. However, we lack a knowledge synthesis describing our current understanding of the use of water sources, particularly for wildlife hydration.
Carlos M. Delgado‐Martínez   +3 more
wiley   +1 more source

Soaring migratory birds avoid wind farm in the Isthmus of Tehuantepec, southern Mexico. [PDF]

open access: yesPLoS ONE, 2014
The number of wind farms operating in the Isthmus of Tehuantepec, southern Mexico, has rapidly increased in recent years; yet, this region serves as a major migration route for various soaring birds, including Turkey Vultures (Cathartes aura) and ...
Rafael Villegas-Patraca   +2 more
doaj   +1 more source

Emergence, spread, and impact of high‐pathogenicity avian influenza H5 in wild birds and mammals of South America and Antarctica

open access: yesConservation Biology, EarlyView.
Abstract The currently circulating high‐pathogenicity avian influenza (HPAI) virus of the subtype H5 causes variable illness and death in wild and domestic birds and mammals, as well as in humans. This virus evolved from the Goose/Guangdong lineage of the HPAI H5 virus, which emerged in commercial poultry in China in 1996, spilled over into wild birds,
Thijs Kuiken   +9 more
wiley   +1 more source

A New Cathartic [PDF]

open access: yesThe Boston Medical and Surgical Journal
n ...
openaire   +2 more sources

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