Results 31 to 40 of about 378 (155)

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

Waterbird zoogeochemical effects shape wetland nutrient dynamics and algal communities in Laurentian Great Lakes coastal freshwater wetlands

open access: yesJournal of Animal Ecology, EarlyView.
Distinct waterbird species influence nutrient cycling through guano contributions in Great Lakes coastal wetlands. Waterbird‐derived nutrients favour distinct algal communities and wetland sediments rapidly remove waterbird nutrients via biogeochemical processes.
Taylor C. Michael   +3 more
wiley   +1 more source

Using species distribution models to define nesting habitat of the eastern metapopulation of double‐crested cormorants

open access: yesEcology and Evolution, 2017
When organisms with similar phenotypes have conflicting management and conservation initiatives, approaches are needed to differentiate among subpopulations or discrete groups.
Kate L. Sheehan   +4 more
doaj   +1 more source

The pectoralis muscle orientation as an indicator of the modes of wing‐propelled locomotion in birds

open access: yesJournal of Anatomy, EarlyView.
The pectoralis orientation of birds was consistent with the orientation of the aerodynamic force acting on the wing, varying by wing‐propelled locomotion (WPL) mode. The skeletal morphology unique to each WPL mode, related to the origin/insertion of the pectoralis, may be associated with these functional demands of pectoralis orientation.
Takumi Akeda, Shin‐ichi Fujiwara
wiley   +1 more source

The influence of rivers on seabird foraging ecology

open access: yesBiological Reviews, Volume 101, Issue 4, Page 1704-1734, August 2026.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais   +2 more
wiley   +1 more source

Effects of researcher disturbance on Double-crested Cormorant nest survival

open access: yesJournal of Field Ornithology
Demographic data on avian species are critically important for conservation and management. Research on avian demography often requires some level of human disturbance at nest sites.
Brian S Dorr   +4 more
doaj   +1 more source

Steep declines of colonial wading birds in northeastern North America's largest breeding population

open access: yesConservation Science and Practice, Volume 8, Issue 7, July 2026.
This study analyzed 22 years of complete nest census data for colonial wading birds in New York–New Jersey Harbor, the largest breeding population in the northeastern United States. Over this period, the total wading bird population decreased by 27%, a rate exceeding average long‐term declines across North American birds.
Dustin Partridge   +8 more
wiley   +1 more source

Update of the risk assessment on emerging and novel brominated flame retardants in food

open access: yesEFSA Journal, Volume 24, Issue 7, July 2026.
Abstract The European Commission asked EFSA to update its 2012 risk assessment on Emerging and Novel brominated flame retardants (BFRs) in food. Since the previous Opinion, further information was collected for a total of 27 BFRs. The CONTAM Panel concluded that TDBPP, DBPNG and TBNPA are considered genotoxic and carcinogenic.
EFSA Panel on Contaminants in the Food Chain (CONTAM)   +33 more
wiley   +1 more source

Non-lethal management of cormorants: system-level responses to nocturnal roost deterrents

open access: yesFACETS
The Double-crested Cormorant (Nannopterum auritum) has expanded across eastern North America, raising concerns about predation pressure on fish populations.
Samuel Dufour-Pelletier   +3 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

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