Results 51 to 60 of about 42,814 (235)

Spatial ecology of endangered roseate terns and foraging habitat suitability around a colony in the western North Atlantic

Endangered Species Research, 2021
Predicting habitat suitability and understanding habitat utilization are important to inform and orient conservation and management decisions for the recovery of endangered species.
I Pratte, RA Ronconi, SR Craik, J McKnight   +3 more
doaj   +1 more source

Big Bird: A global dataset of birds in drone imagery annotated to species level

Remote Sensing in Ecology and Conservation, EarlyView.
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson, Tatsuya Amano, Thomas Bregnballe, Alejandro Corregidor‐Castro, Roxane Francis, Diego Gallego‐García, Jarrod C. Hodgson, Landon R. Jones, César R. Luque‐Fernández, Dominik Marchowski, John McEvoy, Ann E. McKellar, W. Chris Oosthuizen, Christian Pfeifer, Martin Renner, José Hernán Sarasola, Mateo Sokač, Roberto Valle, Adam Zbyryt, Richard A. Fuller   +19 more
wiley   +1 more source

Multi-dimensional niche segregation of sympatric breeding seabirds in the Xisha Archipelago

Avian Research
Studying coexistence mechanisms is practically important for understanding and conserving marine biodiversity and community structure. Tropical marine ecosystems may exhibit higher competition between top predators due to generally low primary ...
Yuanyuan Zhao, Yangfei Yu, Yunteng Liu, Lei Zhu, Zhikai Liao, Yuelou Liu, Jian Su, Yilin Deng, Siqi He, Cheng Wenda, Yachang Cheng, Yang Liu   +11 more
doaj   +1 more source

Experimental Evidence for Mobilization of Mercury From the Eggshell by the Developing Embryo in an Avian Model Organism

Environmental Toxicology, EarlyView.
ABSTRACT Of the many pollutants wildlife is exposed to, mercury ranks among the most toxic. In birds, mercury does not only accumulate within generations, but also is transferred across generations via maternal offloading in eggs, with higher mercury concentrations found in shells of unhatched eggs.
Matteo Beccardi, Justine Bertram, Sandra Bouwhuis, Pablo Salmón, Peter J. Schupp, Oscar Vedder   +5 more
wiley   +1 more source

Emergence of novel highly pathogenic H5N1 avian influenza in slender-billed gulls (Chroicocephalus genei) and gull-billed terns (Gelochelidon nilotica) at Dukan Lake, Iraq

Open Veterinary Journal
Background: Highly pathogenic avian influenza (HPAI) H5N1 has continued to result in severe mortalities among wild birds globally. Aim: The present study aimed to investigate the mass mortality in Slender-billed Gulls (Chroicocephalus genei) and Gull-
Nasih Ali, Harem Mustafa, Nadia Salih, Pavel Qader, Snur Hassan, Dashty Amin   +5 more
doaj   +1 more source

The effect of localized disturbance on the acoustic behavior of the common tern (Sterna hirundo) [PDF]

JASA Express Letters
In this study, passive acoustic monitoring was used to assess the impact of investigator disturbance on the acoustic behavior of a colony of common terns. A graded antipredator response in the colony was hypothesized, which would result in an increase in
J. E. Brosseau, V. M. Eddington, E. C. Craig, E. R. White, L. N. Kloepper   +4 more
doaj   +1 more source

Using a live‐streaming webcam to assess the behavioural responses of waterbirds to changes in the density of swans Cygnus spp.

Wildlife Biology, EarlyView.
Wildlife research has benefitted from the development of new methods that allow data to be collected remotely, with less disturbance to focal animals. The proliferation of livestreaming webcams, for example, those used by nature reserves for public engagement purposes, have offered new possibilities for the study of wildlife behaviour.
Kevin A. Wood, Grace Clarke, Paul E. Rose   +2 more
wiley   +1 more source

Incursion of Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus, Brazil, 2023

Emerging Infectious Diseases
We report 4 highly pathogenic avian influenza A(H5N1) clade 2.3.4.4.b viruses in samples collected during June 2023 from Royal terns and Cabot’s terns in Brazil.
Andreina Carvalho de Araújo, Laura Morais Nascimento Silva, Andrew Yong Cho, Márcio Repenning, Deyvid Amgarten, Ana Paula de Moraes, Fernanda Malta, Michael Miller, Erick G. Dorlass, Soledad Palameta, Daniele Bruna L. Oliveira, Jansen de Araújo, Clarice Weis Arns, Edison L. Durigon, João Renato R. Pinho, Dong-Hun Lee, Helena Lage Ferreira   +16 more
doaj   +1 more source

Floating rafts as breeding habitats for the Common tern, Sterna hirundo. Colonization patterns, abundance and reproductive success in Venice Lagoon

Rivista Italiana di Ornitologia - Research in Ornithology, 2018
The Venice lagoon hosts the 15% of the entire Italian breeding population of Common terns, Sterna hirundo, highlighting the great value of the area for this species.
Francesca Coccon, Stefano Borella, Nicola Simeoni, Stefano Malavasi   +3 more
doaj   +1 more source

The Relationships Between Rodent Control Efforts, Abundance, Damage, and Outcomes

Integrative Zoology, EarlyView.
Diminishing returns on investment are a common pattern in agricultural and biodiversity conservation studies. A review shows few such studies of the effort‐outcomes relationship for rodent control efforts. It is recommended that future rodent control studies estimate such effort‐outcome relationships. ABSTRACT Rodents cause damage to agricultural crops
Jim Hone
wiley   +1 more source