Results 91 to 100 of about 20,056 (268)

Changing Migratory Behaviors and Climatic Responsiveness in Birds

Frontiers in Ecology and Evolution, 2019
Change of avian migratory behavior is one of the best-studied phenomena presumably associated with contemporary climate change, yet to what degree these behavioral changes represent responses to climate warming is still controversial.
Veronika Bókony, Zoltán Barta, Zsolt Végvári   +2 more
doaj   +1 more source

Combining non‐invasive survey methods increases cumulative detection probability for breeding harlequin ducks Histrionicus histrionicus

Wildlife Biology, EarlyView.
The effective implementation of new technologies for wildlife population monitoring is limited by knowledge of factors that impact their efficacy. Population monitoring of harlequin ducks Histrionicus histrionicus on their breeding streams in Montana and Idaho in the Northern Rocky Mountains, has historically relied on ground‐based foot surveys (GBS ...
Holli A. Holmes, Hannah M. Specht, Lisa J. Bate, Kristina Smucker, Casey McCormack, Cara Staab, Thomas W. Franklin, Dan Bachen, Bryce Maxell, Allison J. Puchniak Begley, Joshua J. Millspaugh   +10 more
wiley   +1 more source

Home Browse Journal Info Guide for Authors Submit Manuscript Reviewers Contact Us Serological survey of high and low pathogenic avian influenza viruses in migratory waterbirds of Neor Lake, Ardabil, northwest of Iran [PDF]

Journal of Zoonotic Diseases
Avian influenza viruses (AIV) are a highly contagious disease with economic and public health impact that belongs to the Orthomyxoviridae family. Wild migratory waterbirds are known as the main reservoirs of AVI which can distribute viruses to poultry ...
Aidin Azizpour, Zahra Amirajam
doaj   +1 more source

Estimating crippling loss from hunting with multistate models: a case study on northern bobwhites

Wildlife Biology, EarlyView.
Hunting as a recreational pursuit provides an important ecosystem service worldwide. Harvest management plays a vital role in regulating wildlife take to ensure long‐term population sustainability and meet value‐based objectives (e.g. hunter satisfaction). However, managers rarely have complete control or observability of harvest mortality.
Amanda S. Cramer, Justin A. Rectenwald, William B. Lewis, Michael A. Hazelbaker, Alexander L. Jackson, Holly K. Lott, Geoff Beane, D. Clay Sisson, Melanie R. Kunkel, Nicole M. Nemeth, James A. Martin   +10 more
wiley   +1 more source

Fate of orphans of Canada geese harvested by hunters in Connecticut, USA, depends upon which month the parents were killed

Wildlife Biology, EarlyView.
Little is known about what happens to juvenile birds after one or both of their parents are harvested by hunters during the post‐fledging dependency period. Here, we compare the fate of juvenile Canada geese Branta canadensis that lost ≥ 1 parent to hunters (orphans) during this period to other juveniles that retained both parents (non‐orphans). For 25
Michael R. Conover, Lauren J. Head
wiley   +1 more source

Pickering Brook Salt Marsh Restoration - Phase II [PDF]

, 2005
In the early 1900’s, the majority of coastal salt marshes in New England were ditched as part of an aggressive mosquito control program. In an attempt to eradicate mosquito-breeding habitat, open water areas were drained by a series of ditches excavated ...
Reilly, Patti
core   +1 more source

Patrones de actividad y abundancias estacionales del Flamenco Andino (Phoe-nicoparrus andinus) en dos humedales contrastantes en Argentina [PDF]

, 2014
El Flamenco Andino utilizade forma complementaria y alternativa humedales altoandinos de Argentina, Bolivia, Chile y Perú,además de humedales en las tierras bajas de Argentina.
Arengo, Felicity, Barberis, Ignacio Martín, Barisón, Caterina, Cruz, Nancy N., Derlindati, Enrique Javier, Romano, Marcelo C   +5 more
core  

Drone‐based radiotelemetry and imagery systems provide an advantage over traditional techniques for estimating survival of dependent juveniles

Wildlife Society Bulletin, EarlyView.
We used drone‐based radiotelemetry and multispectral imagery to estimate detection and survival probabilities of blue‐winged teal broods in Saskatchewan, Canada. Weekly brood survival probabilities, estimated via Cormack‐Jolly‐Seber models, increased with age and were comparable between drone methods.
Grant A. Rhodes, Dylan L. Bakner, Hannah C. Sabatier, Benjamin S. Sedinger, Christopher A. Nicolai, Kevin M. Ringelman   +5 more
wiley   +1 more source

Ruddy Shelduck Tadorna ferruginea home range and habitat use during the non-breeding season in Assam, India [PDF]

India is an important non-breeding ground for migratory waterfowl in the Central Asian Flyway. Millions of birds visit wedands across the country, yet information on their distribution, abundance, and use of resources is rudimentary at best.
Areendran, G., Mccracken, T., Mundkur, T., Namgail, T., Newman, S., Sathiyaselvam, P., Sivananinthaperumal, B., Takekawa, J.Y.   +7 more
core   +1 more source

Assessment of the environmental toxicity and carcinogenicity of tungsten-based shot. [PDF]

, 2009
The toxicity of elemental tungsten released from discharged shot was assessed against previous studies that established a 1% toxic threshold for soil organisms.
Harrison, Paul T. C., Roberts, Michael J., Thomas, Vernon G.   +2 more
core   +1 more source