Results 101 to 110 of about 15,406 (254)

Volatile Compounds in Feathers of the Scarlet Macaw (Ara macao) Reflect Sex and Pair‐Bond Status

Integrative Zoology, EarlyView.
Scarlet macaws exhibit sex‐ and pair‐related differences in plumage volatile composition, with males showing greater chemical richness. Partnered individuals differ in specific compound classes, whereas no clear association with immune function was detected. These results support a potential role for olfactory cues in sexual and social communication in
Elisa Espartosa, Isabel Barja, José Martin, María del Carmen Hernández   +3 more
wiley   +1 more source

Warm and cool temperatures decrease early‐life telomere length in wild pied flycatchers

Journal of Avian Biology
Climate change represents a major challenge for avian species. It is characterized by an increase in average ambient temperatures, but also by an increase of extreme weather events, such as heatwaves and cold snaps.
Clémence Furic, Coline Marciau, Bin‐Yan Hsu, Nina Cossin‐Sevrin, Julie Fleitz, Sophie Reichert, Suvi Ruuskanen, Antoine Stier   +7 more
doaj   +1 more source

Increased songbird nest depredation due to Aleppo pine (Pinus halepensis) encroachment in Mediterranean shrubland

BMC Ecology, 2019
Background In recent decades, a decrease of passerine densities was documented in Mediterranean shrublands. At the same time, a widespread encroachment of Aleppo pines (Pinus halepensis) to Mediterranean shrubland occurred.
Asaf Ben-David, Hila Shamon, Ido Izhaki, Ronny Efronny, Roi Maor, Tamar Dayan   +5 more
doaj   +1 more source

Effect of Morphology and Spatial Distribution of Males on Vocal Identity in a Non‐Learning African Wood Dove

Integrative Zoology, EarlyView.
Emerald‐spotted Wood‐Dove songs show strong individual vocal signatures. Morphology explains little acoustic variation. Acoustic divergence increases with geographic distance between males, while local neighbor density does not influence vocal distinctiveness.
Lia Zampa, Paweł Szymański, Katarzyna Łosak, Tomasz Stanisław Osiejuk   +3 more
wiley   +1 more source

A method to estimate actual infrastructure‐induced mortality by integrating hierarchical sources of imperfect detection

Methods in Ecology and Evolution, EarlyView.
Abstract Human infrastructures are among the most impactful wildlife threats. Although estimates of animal mortality by these structures exist over a given period, they typically do not account for several levels of imperfect detection (i.e. difference between recorded and true mortality).
Guillermo Gomez‐Peña, Marcello D'Amico, Carlos Rodriguez, Jacinto Román, Alberto García‐Rodríguez, Eloy Revilla, Maria Paniw   +6 more
wiley   +1 more source

Eggshell thickness and egg morphometrics in five songbird species from the Central Valley, California

Journal of Field Ornithology
Avian eggshell thickness is an important life history metric in birds and has broad applications across disciplines ranging from animal behavior to toxicology.
Carley R. Schacter, Sarah H. Peterson, C. Alex Hartman, Mark P. Herzog, Joshua T. Ackerman   +4 more
doaj   +1 more source

Prey Partitioning in a Diverse Carnivore Community: Implications for Reintroduced Fishers in Washington

Animal Conservation, EarlyView.
Using fecal DNA metabarcoding, we quantified dietary overlap among reintroduced fishers and sympatric coyotes, bobcats, and Pacific martens in Washington's North Cascades. Niche overlap was substantial for common prey but varied with body size, revealing fine‐scale resource partitioning that may limit fishers' access to energetically efficient prey ...
Kayla A. Shively, Ellen M. Reese, Jason I. Ransom, Jeffrey C. Lewis, Tara Chestnut, David O. Werntz, Taal Levi, Laura R. Prugh   +7 more
wiley   +1 more source

Characterization of Mauritius parakeet (Psittacula eques) microsatellite loci and their cross-utility in other parrots (Psittacidae, Aves). [PDF]

, 2009
We characterized 21 polymorphic microsatellite loci in the endangered Mauritius parakeet (Psittacula eques). Loci were isolated from a Mauritius parakeet genomic library that had been enriched separately for eight different repeat motifs.
Groombridge, Jim J., CARL G. JONES, ANDREW G. GREENWOOD, Jones, Carl G., Dawson, Deborah A., CLAIRE RAISIN, JIM J. GROOMBRIDGE, Raisin, Claire, Greenwood, Andrew G., DEBORAH A. DAWSON   +9 more
core   +1 more source

Microbiome Dynamics During Translocation of the Critically Endangered Frog Craugastor ranoides

Animal Conservation, EarlyView.
A female Craugastor ranoides fitted with an LB‐2X radio transmitter using a silicone waist‐belt harness for post‐translocation monitoring. ABSTRACT Amphibian populations are declining, and species are going extinct due to habitat loss, climate change, and emerging infectious disease, prompting the increasing use of translocations as a conservation tool.
Xavier A. Harrison, Katherine Herborn, Gilbert Alvarado, María Marta Chavarría, Kirsty J. Marsh, Alexander D.M. Wilson, Alexandra C. North, Victoria E. P. Wakeham, Roberto Fernández, Héctor Zumbado‐Ulate, Jon Bielby, Robert Puschendorf   +11 more
wiley   +1 more source

Functional infertility in a wild passerine bird

, 2016
Schmoll T, Kleven O. Functional infertility in a wild passerine bird. IBIS. 2016;158(3):670-673.Information about male infertility in free-living bird populations and its underlying causes are poorly documented in the literature.
Tim Schmoll, Schmoll, Tim, Oddmund Kleven, Kleven, Oddmund   +3 more
core   +1 more source