Results 21 to 30 of about 1,458 (181)

Use of social information in seabirds: compass rafts indicate the heading of food patches. [PDF]

open access: yesPLoS ONE, 2010
Ward and Zahavi suggested in 1973 that colonies could serve as information centres, through a transfer of information on the location of food resources between unrelated individuals (Information Centre Hypothesis).
Henri Weimerskirch   +4 more
doaj   +1 more source

Pedogeochemical Anomalies in Surroundings of Great Cormorant Colony (Case Study in Lithuania)

open access: yesE3S Web of Conferences, 2013
The area where the colony of great cormorants in Curonian Spit (Lithuania) prospers from 1989 is the study object of “Koreko” project. Based on geochemical results of 90 samples of topsoil from 6 zones which differ according to the influence of the great
Taraškevičius R.   +2 more
doaj   +1 more source

Aerial census of Cape Cormorants and Cape Fur Seals at Baía dos Tigres, Angola

open access: yesNamibian Journal of Environment, 2018
A total of 250,786 Cape Cormorants, of which 16,038 were individuals on nests in 349 colonies, and 15,831 Cape Fur Seals were counted during a complete aerial photographic census of the island of Tigres and part of the adjacent coast in Angola in March ...
JM Mendelsohn, L Haraes
doaj   +1 more source

Estimating potential menhaden consumption by double-crested cormorants along the coast of North Carolina

open access: yesFrontiers in Marine Science, 2023
The south Atlantic coast supports one of the highest assemblages of non-breeding double-crested cormorants (Nannopterum auritum) known and is a convergence area for Atlantic menhaden (Brevoortia tyrannus) during the winter months.
Bryan D. Watts   +3 more
doaj   +1 more source

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

open access: yesThe Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt   +5 more
wiley   +1 more source

Double‐crested cormorant distribution on catfish aquaculture in the Yazoo River Basin of Mississippi

open access: yesWildlife Society Bulletin, 2012
Estimating the catfish aquaculture production losses that can be attributed to double‐crested cormorants (Phalacrocorax auritus) has proved problematic because knowledge of the distribution of cormorants on catfish aquaculture is lacking.
Brian S. Dorr   +3 more
doaj   +1 more source

Seasonal climatic niche and migration movements of Double‐crested Cormorants

open access: yesEcology and Evolution, 2022
Avian migrants are challenged by seasonal adverse climatic conditions and energetic costs of long‐distance flying. Migratory birds may track or switch seasonal climatic niche between the breeding and non‐breeding grounds. Satellite tracking enables avian
D. Tommy King   +2 more
doaj   +1 more source

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

open access: yesBiological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief   +4 more
wiley   +1 more source

Comparing Transcriptomic Responses to Chemicals Across Six Species Using the EcoToxChip RNASeq Database

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract The EcoToxChip project includes RNA‐sequencing data from experiments involving model (Japanese quail, fathead minnow, African clawed frog) and ecological (double‐crested cormorant, rainbow trout, northern leopard frog) species at multiple life stages (whole embryo and adult) exposed to eight chemicals of environmental concern known to perturb ...
Krittika Mittal   +7 more
wiley   +1 more source

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