Results 11 to 20 of about 281 (91)

Effect of the Social Environment on Spring Migration Timing of a Songbird

Frontiers in Ecology and Evolution, 2021
The influence of the social environment on the timing of the annual cycle is poorly understood. Seasonally migratory birds are under pressure to accurately time their spring migration, and throughout the annual cycle, they may experience variability of ...
Jessica E. Deakin, Christopher G. Guglielmo, Yolanda E. Morbey   +2 more
doaj   +1 more source

Short-term mercury exposure disrupts muscular and hepatic lipid metabolism in a migrant songbird

Scientific Reports, 2022
Methylmercury (MeHg) is a global pollutant that can cause metabolic disruptions in animals and thereby potentially compromise the energetic capacity of birds for long-distance migration, but its effects on avian lipid metabolism pathways that support ...
Chad L. Seewagen, Cory R. Elowe, Alexander R. Gerson, Derrick J. E. Groom, Yanju Ma, Mustafa Yildirim, Christopher G. Guglielmo   +6 more
doaj   +1 more source

Temporal changes in avian abundance in aspen-dominated boreal mixedwood forests of central Saskatchewan, Canada

Avian Conservation and Ecology, 2018
The boreal forest provides important breeding habitat for many migratory songbirds; however, changes in disturbance regimes have led to concern for populations breeding there. Monitoring data to track changes in boreal forest bird populations are scarce.
Steven L. Van Wilgenburg, Keith A. Hobson, Kevin J. Kardynal, Elizabeth M. Beck   +3 more
doaj   +1 more source

Migratory songbirds and urban window collision mortality: vulnerability depends on species, diel timing of migration, and age class

Avian Conservation and Ecology, 2022
Hundreds of millions of birds are estimated to die annually in North America by colliding with windows, and understanding the species-level correlates of collision mortality is an important step towards mitigation.
Olivia M. Colling, Christopher G. Guglielmo, Simon J. Bonner, Yolanda E. Morbey   +3 more
doaj  

Bioacoustically derived migration arrival times in boreal birds: implications for assessing habitat quality

Avian Conservation and Ecology, 2022
Long-distance migrant songbirds are declining globally. Reversing declines requires a good understanding of habitat quality. Local studies have shown that territory settlement date (arrival) is generally correlated with density and productivity.
John J. Johnson, Erin Bayne
doaj  

No effect of carrying a leg-loop harness mounted radio transmitter on flight energy expenditure of a small migratory songbird

Journal of Field Ornithology
Radio transmitters and other miniature electronic devices have greatly enhanced our understanding of avian ecology. However, from both animal welfare and data integrity perspectives, it is crucial to determine if tracking devices adversely affect birds ...
Greg W Mitchell, Morag Dick, Alexander Macmillan, Christopher G Guglielmo   +3 more
doaj   +1 more source

Wood Thrush (Hylocichla mustelina) occupancy patterns reveal sensitivity to low precipitation on nonbreeding grounds in northern Costa Rica

Ibis, EarlyView.
Climatic change and anthropogenic disturbances are reshaping animal populations. Habitat loss and extreme climatic events are particularly strong drivers of declines in species that depend on forested areas. For migratory songbirds, climate and the persistence of suitable habitat over time are fundamental to sustaining populations annually.
Isabel Vargas‐Valverde, Natalie V. Sánchez, Manuel Spínola, Gerardo Avalos   +3 more
wiley   +1 more source

A Genomic Tool to Tackle Cryptic Diversity Demonstrates the Potential for Off‐Target Use of GT‐Seq Panels

Molecular Ecology Resources, Volume 26, Issue 7, October 2026.
ABSTRACT A comprehensive understanding of life history is vital to successful species conservation and management. When different life history stages are accompanied by considerable morphological or cryptic variation, such as the egg and larval phases exhibited by most fishes, genomic tools are essential for identifying species so that early‐life ...
Amanda S. Ackiss, Mark R. Vinson, Ann J. Ropp, Kristen M. Gruenthal, Trevor J. Krabbenhoft, Joseph V. Siegel, Wendylee Stott, Daniel L. Yule, Wesley A. Larson   +8 more
wiley   +1 more source

Underestimation of avian diversity in the Tumbesian hotspot: Sampling gaps and conservation challenges

Conservation Science and Practice, Volume 8, Issue 10, October 2026.
This study provides the first comprehensive reassessment of avian diversity in the Tumbesian region in over 30 years, documenting 931 species and identifying significant sampling gaps driven by geographic accessibility. We reveal a critical misalignment between biodiversity value and current protection coverage, particularly in humid forests which ...
Anabel Cueva‐Agila, Leonardo Ordóñez‐Delgado, María Fernanda Tapia‐Armijos, Carlos Iván Espinosa   +3 more
wiley   +1 more source

Effects of off‐highway vehicle activity on Arizona wildlife: a systematic literature review

The Journal of Wildlife Management, Volume 90, Issue 7, September 2026.
The published literature indicates that off‐highway vehicles (OHVs) predominantly negatively affect native Arizona amphibians, mammals, and reptiles, while effects of OHVs on native Arizona birds are mostly unknown or neutral. Abstract Off‐highway vehicle (OHV) recreation has dramatically increased in Arizona, USA, prompting concerns about potential ...
Hayden K. Hutcherson, Cassidy A. Klovanish, Samuel D. Lisak, Esther S. Rubin, Reilly T. Jackson   +4 more
wiley   +1 more source