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Articles 1141 - 1147 of 1147
Full-Text Articles in Animal Sciences
Erau Aviation Wildlife Hazard Newsletter, Paul F. Eschenfelder
Erau Aviation Wildlife Hazard Newsletter, Paul F. Eschenfelder
Paul F. Eschenfelder
No abstract provided.
Laboratory Rodent Welfare: Thinking Outside The Cage, Jonathan P. Balcombe
Laboratory Rodent Welfare: Thinking Outside The Cage, Jonathan P. Balcombe
Jonathan Balcombe, Ph.D.
No abstract provided.
A Brief History Of The American Fish Culture Company 1877-1997., Michael A. Rice
A Brief History Of The American Fish Culture Company 1877-1997., Michael A. Rice
Michael A Rice
The American Fish Culture Company operated for nearly 120 years from 1877-1997 in Carolina, Rhode Island growing three species of trout under the under the direction of several generations of the Hazard family of Peace Dale, Rhode Island. The company was one of the first trout producers in the United States, and was considered the largest fish farm in the country by the early 1920s. Major innovations of the company included early adoption of pelleted feeds, and the introduction of photoperiod manipulation to spawn fish out of season. The company ultimately failed due to intense competition from larger producers in …
Where The Tiger Survives, Biodiversity Thrives, Philip J. Nyhus, Ronald Tilson
Where The Tiger Survives, Biodiversity Thrives, Philip J. Nyhus, Ronald Tilson
Philip J. Nyhus
No abstract provided.
Assessing The Value Of Dna Barcodes And Other Priority Gene Regions For Molecular Phylogenetics Of Lepidoptera, John James Wilson
Assessing The Value Of Dna Barcodes And Other Priority Gene Regions For Molecular Phylogenetics Of Lepidoptera, John James Wilson
John James Wilson
Background: Despite apparently abundant amounts of observable variation and species diversity, the order Lepidoptera exhibits a morphological homogeneity that has provided only a limited number of taxonomic characters and led to widespread use of nucleotides for inferring relationships. This study aims to characterize and develop methods to quantify the value of priority gene regions designated for Lepidoptera molecular systematics. In particular, I assess how the DNA barcode segment of the mitochondrial COI gene performs across a broad temporal range given its number one position of priority, most sequenced status, and the conflicting opinions on its phylogenetic performance. Methodology/Principal Findings: Gene …
Airport Wildlife Hazard Control, Paul F. Eschenfelder
Airport Wildlife Hazard Control, Paul F. Eschenfelder
Paul F. Eschenfelder
No abstract provided.
Polyphyly Of The Pikeminnows (Teleostei: Cyprinidae) Inferred Using Mitochondrial Dna Sequences, T. Heath Ogden
Polyphyly Of The Pikeminnows (Teleostei: Cyprinidae) Inferred Using Mitochondrial Dna Sequences, T. Heath Ogden
T. Heath Ogden
The phylogenetic relationships of the Colorado pikeminnow Ptychocheilus lucius, northern pikeminnow P. oregonensis, Sacramento pikeminnow P. grandis, Umpqua pikeminnow P. umpquae, and hardhead Mylopharodon conocephalus were examined by using molecular data to investigate monophyly of the genus Ptychocheilus. Phylogenies generated using DNA sequence data from the cytochrome b and 16S ribosomal DNA genes of the mitochondrial genome reveal that Ptychocheilus is a polyphyletic genus and suggest that the taxonomy of the group is in need of further revision. These data yield insights into the evolution of the pikeminnows and help place the significant evolutionary events in context with the geological …