Results 31 to 40 of about 856 (176)

Fine scale characteristics of catfish aquaculture ponds influencing piscivorous avian species foraging use in the Mississippi Delta.

open access: yesPLoS ONE, 2020
Piscivorous avian species are the main source of catfish depredation at aquaculture facilities in Mississippi, resulting in the economic loss of millions of dollars every year.
Paul C Burr   +4 more
doaj   +1 more source

Presencia y abundancia de aves de la Isla Farallón de San Ignacio, Sinaloa

open access: yesHuitzil, 2015
Para determinar la presencia y abundancia de aves que utilizan la isla Farallón de San Ignacio, Sinaloa, documentamos las aves observadas durante 46 visitas de cinco días a la isla entre 2003 y 2008. Registramos 57 especies de aves.
Miguel Angel Guevara Medina   +2 more
doaj   +1 more source

CT scan data of wild double-crested cormorant, Phalacrocorax auritus OUVC 10645

open access: yes, 2016
This zip file contains DICOM images from an x-ray microcomputed tomography (µCT) scan of an injected Phalacrocorax auritus (OUVC 10645). The arteries were injected with a latex and barium solution and scanned on a GE eXplore Locus in vivo Small Animal ...
William Ruger Porter (7850966)   +3 more
core   +1 more source

Abundance, population trends, and negative associations with lake water levels for six colonial waterbird species over five decades in southern Manitoba

open access: yesAvian Conservation and Ecology, 2021
Management of colonial waterbirds at regional, national, and continental scales requires up-to-date monitoring information on breeding locations, population sizes, and trends.
Ann E. McKellar   +2 more
doaj  

Identification of 24 polymorphic microsatellite markers for the double‐crested cormorant (Phalacrocorax auritus)

open access: yesMolecular Ecology Resources, 2009
AbstractTwenty‐four polymorphic microsatellite markers were developed for the double‐crested cormorant (Phalacrocorax auritus). The number of alleles ranged from two to 13 and observed heterozygosities ranged from 0.032 to 0.871. The use of these loci should enable researchers and biologists to learn more about the population structure and ecology of ...
Fike, Jennifer A.   +2 more
openaire   +3 more sources

Heat increment of feeding in double-crested cormorants (Phalacrocorax auritus) and its potential for thermal substitution [PDF]

open access: yesJournal of Experimental Biology, 2008
SUMMARYDiving endotherms inhabiting polar regions face potentially high thermoregulatory costs. Unless properly insulated, these animals will lose vast amounts of heat when diving in cold water, which has to be balanced by heat production. Heat generated as a by-product of digestion (heat increment of feeding, HIF) or from exercising muscles might be ...
Manfred R, Enstipp   +2 more
openaire   +2 more sources

Evidence for a Negative Effect of Double-crested Cormorants (Phalacrocorax auritus) on Invasive European Fire Ants (Myrmica rubra)

open access: yes, 2018
Nesting of Double-crested Cormorants (Phalacrocorax auritus) in western Lake Ontario is associated with reduced abundance and nest density of European Fire Ants (Myrmica rubra). The impact on fire ants may be substrate related.
Rudmik, Kristi   +6 more
core   +1 more source

Refinement of Biomarker Pentosidine Methodology for use on Aging Birds

open access: yesHuman-Wildlife Interactions, 2017
There is no reliable method for determining age for most species of long-lived birds. Recent success using the skin chemical pentosidine as a biomarker has shown promise as an aging tool for birds.
Crissa K. Cooey   +5 more
doaj   +1 more source

Swimming modes affect dive durations in diving birds

open access: yesJournal of Avian Biology, Volume 2026, Issue 2, March 2026.
Dive duration and body mass are positively correlated across air‐breathing vertebrate species, but other factors affecting dive duration are inadequately studied. Here, we examined the effect of a previously overlooked factor, swimming mode, using phylogenetically informed statistics with data on the diving capabilities of 53 species of avian divers ...
Hiroya Matsushita, Yuuki Y. Watanabe
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

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