Results 61 to 70 of about 3,181 (180)

Morphometric Variation During Chick Development in Interior Double-Crested Cormorants (Phalacrocorax auritus)

Waterbirds, 2016
Abstract. In numerous avian species, egg size is correlated to female body condition, hatchling size and nestling growth. Recent demography studies of Interior Double-crested Cormorants (Phalacrocorax auritus) suggest a migratory divide across the Great Lakes; western populations winter in the Gulf of Mexico region of the southeastern United States ...
Chastant, Jennifer E., Callaghan, Corey T., King, D. Tommy   +2 more
openaire   +2 more sources

Acoustic telemetry tracking of Coho Salmon smolts released from a community‐run hatchery into a marine inlet reveals low early ocean survival

North American Journal of Fisheries Management, Volume 44, Issue 2, Page 359-376, April 2024.
Abstract Objective Hatcheries are used to help supplement populations of Pacific salmon Oncorhynchus spp. for conservation and fisheries purposes and to provide stewardship opportunities. In British Columbia, small community‐run hatcheries typically focus on the latter and generally do not know the efficacy of their release approaches, unlike larger ...
Adam M. Kanigan, Scott G. Hinch, Andrew G. Lotto, Kamil Szlachta, Stephen D. Johnston, Stephanie A. Lingard   +5 more
wiley   +1 more source

Quantifying impacts of harbor seal Phoca vitulina predation on juvenile Coho Salmon in the Strait of Georgia, British Columbia

Marine and Coastal Fisheries, Volume 16, Issue 1, February 2024.
Abstract Objective Coho Salmon Oncorhynchus kisutch provide an important resource for recreational, commercial, and Indigenous fisheries in the Pacific Northwest. The goal of this study was to improve our understanding of how marine mammal predation may be impacting the survival and productivity of Coho Salmon in the Strait of Georgia, British Columbia.
Benjamin W. Nelson, Murdoch K. McAllister, Andrew W. Trites, Austen C. Thomas, Carl J. Walters   +4 more
wiley   +1 more source

Las Colecciones del Museo de Ciencias Naturales de la Universidad de Navarra. I. Vertebrados [PDF]

, 2000
Se presenta el Catálogo de la Colección de Vertebrados expuesta en el Museo de Ciencias Naturales de la Universidad de Navarra. La mayor parte de la colección, de ámbito mundial, proviene de la antigua Colección del Colegio Lecároz (Navarra).
Ariño-Plana, A.H. (Arturo Hugo), Salinas, J.A. (J.A.)   +1 more
core  

Mortality of Migratory Birds from Marine Commercial Fisheries and Offshore Oil and Gas Production in Canada [PDF]

, 2013
There is an imminent need for conservation and best-practice management efforts in marine ecosystems where global-scale declines in the biodiversity and biomass of large vertebrate predators are increasing and marine communities are being altered.
April Hedd, Gail S. Fraser, Gregory J. Robertson, Jean-François Rail, Joanne I. Ellis, Ken H. Morgan, Mark Fowler, Sabina I. Wilhelm   +7 more
core   +2 more sources

A phylogeny of birds based on over 1,500 loci collected by target enrichment and high-throughput sequencing [PDF]

, 2012
Evolutionary relationships among birds in Neoaves, the clade comprising the vast majority of avian diversity, have vexed systematists due to the ancient, rapid radiation of numerous lineages.
Brumfield, Robb T., Crawford, Nicholas G., Faircloth, Brant C., Glenn, Travis C., Harvey, Michael G., McCormack, John E.   +5 more
core   +5 more sources

Reprint of: Development of methods for avian oil toxicity studies using the double crested cormorant ( Phalacrocorax auritus )

Ecotoxicology and Environmental Safety, 2017
Oral and external dosing methods replicating field exposure were developed using the double crested cormorant (DCCO) to test the toxicity of artificially weathered Deepwater Horizon Mississippi Canyon 252 oil. The majority of previous oil dosing studies conducted on wild-caught birds used gavage methods to dose birds with oil and determine toxicity ...
Fred, Cunningham, Karen, Dean, Katie, Hanson-Dorr, Kendal, Harr, Kate, Healy, Katherine, Horak, Jane, Link, Susan, Shriner, Steven, Bursian, Brian, Dorr   +9 more
openaire   +2 more sources

Experimental and modeled thermoregulatory costs of repeated sublethal oil exposure in the Double-crested Cormorant, Phalacrocorax auritus

Marine Pollution Bulletin, 2018
To fully understand the impact of oil exposure, it is important to understand sublethal effects like how increased thermoregulatory costs may affect survival and reproduction. However, it is difficult and time-consuming to measure these effects in wild animals. We present a novel use of a bioenergetics model, Niche Mapper™, to estimate thermoregulatory
Mathewson, Paul D., Hanson-Dorr, Katie C., Porter, Warren P., Bursian, Steven J., Dean, Karen M., Healy, Kate, Horak, Katherine, Link, Jane E., Harr, K. E., Dorr, Brain S.   +9 more
openaire   +3 more sources

Features of birds in Croatia [PDF]

, 2012
Hrvatsku ornitofaunu čini oko 400 vrsta ptica, a gnjezdaricama se smatra oko 226 vrsta. Obje su ove brojke u europskim razmjerima visoke i upućuju na vrlo bogatu ornitofaunu.
Bastašić, Bojana
core   +2 more sources

Annex II: estatus de l'avifauna balear [PDF]

not ...
Comité editorial, Fauna Illes Balears
core   +2 more sources