Results 21 to 30 of about 976 (197)

Predation probabilities and functional responses: How piscivorous waterbirds respond to pulses in fish abundance

Ecosphere, 2022
How predators respond to changes in prey abundance (i.e., functional responses) is foundational to consumer–resource interactions, predator–prey dynamics, and the stability of predator–prey systems.
Nathan J. Hostetter, Quinn Payton, Daniel D. Roby, Ken Collis, Allen F. Evans   +4 more
doaj   +1 more source

Developing nondestructive techniques for managing conflicts between fisheries and double‐crested cormorant colonies

Wildlife Society Bulletin, 2015
Double‐crested cormorants (Phalacrocorax auritus) have been identified as the source of significant mortality to juvenile salmonids (Oncorhynchus spp.) in the Columbia River Basin.
Yasuko Suzuki, Daniel D. Roby, Donald E. Lyons, Karen N. Courtot, Ken Collis   +4 more
doaj   +1 more source

Photogrammetry and multievent modeling to determine effects of disturbance on seabird colony nest success

Endangered Species Research
Seabirds are sentinel species, with shifts in their demographics reflecting the cumulative pressures facing global marine ecosystems. However, studying their reproductive success is often limited by the difficulty of continuous observation throughout the
RM Stapleton, LLE Cowen, GTW McClelland, SJR Broadley, R Joy   +4 more
doaj   +1 more source

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

PLoS 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, Jimmy L Avery, Garrett M Street, Bronson K Strickland, Brian S Dorr   +4 more
doaj   +1 more source

Double-Crested Cormorant Disturbance: Restoration Potential for a Forested Urban Park

, 2019
This paper examines the relationship between double-crested cormorant nesting activity and urban deforestation in Toronto’s Tommy Thompson Park (TTP).
Danielle Marcoux-Hunter (14521180)
core   +1 more source

Cormorant abundance, diet, and foraging habits in Arizona

Journal of Field Ornithology, 2022
In Arizona, USA, Double-crested Cormorants (Nannopterum auritum) primarily overwinter, whereas Neotropic Cormorants (N. brasilianum) are common residents year round.
Larisa E. Harding, Jacob I. Mesler
doaj  

Comparison of Sampling Strategies to Estimate Abundance of Double-Crested Cormorants in Western Mississippi

Human-Wildlife Interactions, 2017
We compared 2 sampling strategies designed to estimate abundance of double-crested cormorants (Phalacrocorax auritus, hereafter cormorants) on aquaculture ponds in western Mississippi.
Aaron T. Pearse , Brian S. Dorr, Stephen J. Dinsmore, Richard M. Kaminski   +3 more
doaj   +1 more source

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

Environmental 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, Jessica Ewald, Doug Crump, Jessica Head, Markus Hecker, Natacha Hogan, Jianguo Xia, Niladri Basu   +7 more
wiley   +1 more source

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

Wildlife 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, Loren W. Burger, Scott C. Barras, Kristina Casscles Godwin   +3 more
doaj   +1 more source

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

Ecology 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, Samuel T. Esswein, Brian S. Dorr, Greg K. Yarrow, Ron J. Johnson   +4 more
doaj   +1 more source