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Full-Text Articles in Life Sciences
Relationships Among Biodiversity Dimensions Of Birds In Nebraska, Nadejda Mirochnitchenko
Relationships Among Biodiversity Dimensions Of Birds In Nebraska, Nadejda Mirochnitchenko
School of Natural Resources: Dissertations, Theses, and Student Research
Biological diversity, or biodiversity, is a multi-dimensional concept that can be decomposed to measure information about taxonomic, phylogenetic, and functional variation within communities. Although the dimensions of biodiversity are interrelated, the assumption that measuring one dimension of diversity can inform about patterns in another dimension does not necessarily follow from theory or empirical study. The relationships among biodiversity dimensions is not well understood, nor how differences among dimensions could influence conservation decision making. Using the avian community as a study system, we explored the relationships of breadth metrics from the taxonomic, phylogenetic, and functional dimensions among each other and across …
Kentucky Warbler (Vol. 94, No. 4), Kentucky Library Research Collections
Kentucky Warbler (Vol. 94, No. 4), Kentucky Library Research Collections
Kentucky Warbler
No abstract provided.
Stable Isotopes Reveal Opportunistic Foraging In A Spatiotemporally Heterogeneous Environment: Bird Assemblages In Mangrove Forests, Christina Buelow, April Reside, Ronald Baker, Marcus Sheaves
Stable Isotopes Reveal Opportunistic Foraging In A Spatiotemporally Heterogeneous Environment: Bird Assemblages In Mangrove Forests, Christina Buelow, April Reside, Ronald Baker, Marcus Sheaves
University Faculty and Staff Publications
Environmental heterogeneity can foster opportunistic foraging by mobile species, resulting in generalized resource and habitat use. Determining species’ food web roles is important to fully understand how ecosystems function, and stable isotopes can provide insight into the foraging ecology of bird assemblages. We investigated flexibility of food choice in mangrove bird assemblages of northeast Australia by determining whether species’ carbon and nitrogen isotopic values corresponded to foraging group classification described in the literature, such as groups of species that are omnivorous or insectivorous. Subsequently, we evaluated foraging group isotopic niche size, overlap, degree of individual specialization, and the probable proportions …
Kentucky Warbler (Vol. 94, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 94, No. 3), Kentucky Library Research Collections
Kentucky Warbler
No abstract provided.
Kentucky Warbler (Vol. 94, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 94, No. 2), Kentucky Library Research Collections
Kentucky Warbler
No abstract provided.
Bird Population Changes Following The Establishment Of A Diverse Stand Of Woody Plants In A Former Crop Field In North Dakota, 1975– 2015, Lawrence D. Igl, Harold A. Kantrud, Wesley Newton
Bird Population Changes Following The Establishment Of A Diverse Stand Of Woody Plants In A Former Crop Field In North Dakota, 1975– 2015, Lawrence D. Igl, Harold A. Kantrud, Wesley Newton
USGS Northern Prairie Wildlife Research Center
Changes in the coverage of trees and shrubs on the North Dakota landscape since Euro- American settlement have likely had a pronounced impact on bird species that favor woody vegetation. Long- term data sets on breeding bird populations in wooded habitats in North Dakota or in the Great Plains are scarce. In 1975 a wildlife habitat plot was established in a 10.5 ha cropland field with a long history of small- grain production. Th e objective of this article is to evaluate the successional changes in bird populations as the habitat at this site became more biologically and structurally complex …
Bulletin No. 43: Birds Of The Connecticut College Arboretum: Eighty Years Of Change, Robert Askins
Bulletin No. 43: Birds Of The Connecticut College Arboretum: Eighty Years Of Change, Robert Askins
Bulletins
No abstract provided.
Kentucky Warbler (Vol. 94, No. 1), Kentucky Library Research Collections
Kentucky Warbler (Vol. 94, No. 1), Kentucky Library Research Collections
Kentucky Warbler
No abstract provided.
0841: Mary Lois Garrett Collection, 1941-1954, Marshall University Special Collections
0841: Mary Lois Garrett Collection, 1941-1954, Marshall University Special Collections
Guides to Manuscript Collections
This collection spans the years 1941-1954, with the bulk of the research covering the years 1950-1954. File contents were maintained in the way in which they were originally received, but folders have been arranged in a more chronological order. Some notes are entirely handwritten, while logs and records consist of typed templates which have been filled-in by hand. Notes contain illustrations of birds and nests, graphs of bird activity during observance, and descriptions of bird behavior. Nesting logs have mostly been filled out by Mary Lois Garrett, but other authors contributed, including Twila Hessin, Ruth Geib, and an unspecified ornithology …
The Role Of Song In Reproductive Isolation In A New Secondary Contact Zone Of White-Crowned Sparrows (Zonotrichia Leucophrys), William Brooks
The Role Of Song In Reproductive Isolation In A New Secondary Contact Zone Of White-Crowned Sparrows (Zonotrichia Leucophrys), William Brooks
Summer Research
Within the past thirty years, two formerly isolated subspecies of white-crowned sparrows (Zonotrichia leucophrys) have formed an overlap in geographic range. This creates a natural experiment in speciation and reproductive isolation. Understanding how song acts as a reproductive barrier in this overlap can contribute to our understanding of behavioral isolation. We preformed playback experiments on territorial males to measure subspecific vocal discrimination. Additionally, we looked to see if hybridization was occurring. In the playback experiments we found that Z. l. pugetensis discriminates more strongly between songs, while Z. l. gambelii demonstrates little to no difference in response. We …
To Live And Fly In La: Using Bird Strike And Management Program Information To Improve Safety At Airports In The Los Angeles Basin, Todd J. Pitlik, Elizabeth Hermann, Eric Peralta, Brian E. Washburn
To Live And Fly In La: Using Bird Strike And Management Program Information To Improve Safety At Airports In The Los Angeles Basin, Todd J. Pitlik, Elizabeth Hermann, Eric Peralta, Brian E. Washburn
USDA Wildlife Services: Staff Publications
Wildlife-aircraft collisions (wildlife strikes) pose a serious safety risk to aircraft. Wildlife strikes can be evaluated at different levels, include efforts to examine these problems at the national, regional, or state level, or for an individual airport. Similarly, wildlife strikes involving individual wildlife species or guilds can be examined at varying scales. Although wildlife strike analyses at the national, regional, or species/guild level are valuable, airport-specific analyses are essential for the effective implementation and evaluation of integrated wildlife damage management programs as these actions are conducted at the airport level. The species that present hazards to safe aircraft operations varies …