Results 41 to 50 of about 1,104 (167)

New host records of chewing lice (Mallophaga) on birds in Florida 2 [PDF]

open access: yes, 2003
This is a continuation of Holt (2004). Methods and sources of specimens are as reported in that paper. Representatives of all records below are deposited in the Florida State Collection of Arthropods and/or the author's ...
Holt, J. Adam
core   +1 more source

American White Pelican (Pelecanus erythrorhynchos) Growth, Nutrition and Immunology

open access: yesWaterbirds, 2019
Limited information about nutrition exists on American White Pelicans (Pelecanus erythrorhynchos) from hatching to fledging. To detail immunity, metabolism and nutrition of juvenile American White Pelicans, during 22-23 July 2011, 103 samples of regurgitate matter were collected at five Chase Lake, North Dakota, USA, and three Bitter Lake, South Dakota,
openaire   +2 more sources

Bait trapping of waterfowl increases the environmental contamination of avian influenza virus (AIV)

open access: yesThe Journal of Wildlife Management, Volume 89, Issue 3, April 2025.
Metrics of avian influenza virus (AIV) occurrence and diversity derived from fecal and sediment sampling at quasi‐experimentally baited and un‐baited sites provided evidence that wetland baiting of waterfowl increases AIV contamination in the environment.
Cassandra L. Andrew   +15 more
wiley   +1 more source

Birds of Sierra de Vallejo, Nayarit, Mexico [PDF]

open access: yes, 2014
Sierra de Vallejo, is considered a priority region for conservation, and is strongly affected by anthropogenic pressures. The inventory of birds are refers to studies in near areas.
Figueroa-Esquivel, E.M.   +1 more
core  

A Trophic and Non‐Trophic Seasonal Interaction Network Reveals Potential Management Units and Functionally Important Species

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 1, January 2025.
ABSTRACT Aim Understanding the organisation of the wide variety of ecological interactions is crucial to advancing our understanding and management of real ecosystems. We aimed to compile a ‘complete’ network of tetrapod trophic and non‐trophic interactions for the entire North American boreal forest biome that could be analysed to gain insights into ...
Ella Z. Daly   +2 more
wiley   +1 more source

Factors affecting feed conversion ratios in US commercial catfish production ponds

open access: yesJournal of the World Aquaculture Society, Volume 55, Issue 3, June 2024.
Abstract Feed conversion ratio (FCR) is widely used as a measure of feed use efficiency in commercial aquaculture production and research. Surprisingly, little work has focused on the factors that affect FCR in plankton‐based, commercial ponds despite the widespread use of FCR as a production metric.
Nathan M. Stone   +8 more
wiley   +1 more source

Marine Flora and Fauna of the eastern United States: Acanthocephala [PDF]

open access: yes, 1998
The phylum Acanthocephala (intestinal worm parasites of vertebrates) of the Atlantic coast of the United States comprises 43 species and 20 genera belonging to three orders: Echinorhynchida, Neoechinorhynchida, and Polymorphida.
Amin, Omar M.
core  

Survival implications of diversion entrainment for out‐migrating juvenile Chinook Salmon and steelhead

open access: yesTransactions of the American Fisheries Society, Volume 153, Issue 2, Page 200-215, March 2024.
Abstract Objective Efforts to ameliorate the negative effects of diversion dams on aquatic species of concern are important in rivers where water withdrawal supports agricultural economies, and they are likely to become increasingly important with impending climate change.
Tobias J. Kock   +6 more
wiley   +1 more source

American White Pelicans [PDF]

open access: yes, 2019
American white pelicans (Pelecanus erythrorhynchos, Figure 1) threaten aquaculture producers by direct predation and the spread of disease. They are also considered competition and a nuisance by some sports fishermen. Pelicans can also damage pond levees
King, Tommy
core   +3 more sources

American White Pelican (\u3ci\u3ePelecanus erythrorhynchos\u3c/i\u3e) Growth, Nutrition and Immunology [PDF]

open access: yes, 2019
Limited information about nutrition exists on American White Pelicans (Pelecanus erythrorhynchos) from hatching to fledging. To detail immunity, metabolism and nutrition of juvenile American White Pelicans, during 22-23 July 2011, 103 samples of ...
Ferguson, Treena L.   +2 more
core   +1 more source

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