Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 49

Full-Text Articles in Entire DC Network

Digital Repositories In Ecology And Environment: An Analytical Study, Midhat Mehraj, Ikhlaq Ur Rehman, Shohar Bano Jan 2019

Digital Repositories In Ecology And Environment: An Analytical Study, Midhat Mehraj, Ikhlaq Ur Rehman, Shohar Bano

Library Philosophy and Practice (e-journal)

The present study aims to identify the status of Open Access Repositories (OARs) in the field of Ecology and Environment. The data was collected from the Directory of Open Access Repositories (OpenDOAR). Data collected was analysed on different parameters such as geographical distribution, software usage, content type, repository type and language diversity. As of now OpenDOAR holds 176 repositories in the field of Ecology and Environment. The findings further reveal that the maximum number of repositories belong to the USA accounting for 18(10.2%). Also, the maximum number of repositories are institutional accounting for 134(76%).


Population Genetics Of Seaside Sparrow (Ammodramus Maritimus) Subspecies Along The Gulf Of Mexico., Stefan Woltmann, Phillip C. Stouffer, Christine M. Bergeon Burns, Mark S. Woodrey, Mollie F. Cashner, Sabrina S. Taylor Nov 2014

Population Genetics Of Seaside Sparrow (Ammodramus Maritimus) Subspecies Along The Gulf Of Mexico., Stefan Woltmann, Phillip C. Stouffer, Christine M. Bergeon Burns, Mark S. Woodrey, Mollie F. Cashner, Sabrina S. Taylor

Coastal Research and Extension Center Publications

Seaside Sparrows (Ammodramus maritimus) along the Gulf of Mexico are currently recognized as four subspecies, including taxa in Florida (A. m. juncicola and A. m. peninsulae) and southern Texas (Ammodramus m. sennetti), plus a widespread taxon between them (A. m. fisheri). We examined population genetic structure of this "Gulf Coast" clade using microsatellite and mtDNA data. Results of Bayesian analyses (Structure, GeneLand) of microsatellite data from nine locations do not entirely align with current subspecific taxonomy. Ammodramus m. sennetti from southern Texas is significantly differentiated from all other populations, but we found evidence of an admixture zone with A. m. …


Population And Demographic Structure Of Ixodes Scapularis Say In The Eastern United States., Joyce M. Sakamoto, Jerome Goddard, Jason L. Rasgon Jul 2014

Population And Demographic Structure Of Ixodes Scapularis Say In The Eastern United States., Joyce M. Sakamoto, Jerome Goddard, Jason L. Rasgon

College of Agriculture & Life Sciences Publications and Scholarship

INTRODUCTION: The most significant vector of tick-borne pathogens in the United States is Ixodes scapularis Say (the blacklegged tick). Previous studies have identified significant genetic, behavioral and morphological differences between northern vs. southern populations of this tick. Because tick-borne pathogens are dependent on their vectors for transmission, a baseline understanding of the vector population structure is crucial to determining the risks and epidemiology of pathogen transmission. METHODS: We investigated population genetic variation of I. scapularis populations in the eastern United States using a multilocus approach. We sequenced and analyzed the mitochondrial COI and 16S genes and three nuclear genes (serpin2, …


Specimen Catalog & Field Notes, Bethany L. Abrahamson Aug 2012

Specimen Catalog & Field Notes, Bethany L. Abrahamson

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Fecal Near Infrared Spectroscopy To Discriminate Physiological Status In Giant Pandas., Erin E. Wiedower, Andrew J. Kouba, Carrie K. Vance, Rachel L. Hansen, Jerry W. Stuth, Douglas R. Tolleson Jun 2012

Fecal Near Infrared Spectroscopy To Discriminate Physiological Status In Giant Pandas., Erin E. Wiedower, Andrew J. Kouba, Carrie K. Vance, Rachel L. Hansen, Jerry W. Stuth, Douglas R. Tolleson

College of Agriculture & Life Sciences Publications and Scholarship

Giant panda (Ailuropoda melanoleuca) monitoring and research often require accurate estimates of population size and density. However, obtaining these estimates has been challenging. Innovative technologies, such as fecal near infrared reflectance spectroscopy (FNIRS), may be used to differentiate between sex, age class, and reproductive status as has been shown for several other species. The objective of this study was to determine if FNIRS could be similarly used for giant panda physiological discriminations. Based on samples from captive animals in four U.S. zoos, FNIRS calibrations correctly identified 78% of samples from adult males, 81% from adult females, 85% from adults, 89% …


The Cynipoid Genus Paramblynotus: Revision, Phylogeny, And Historical Biogeography (Hymenoptera, Liopteridae), Zhiwei Liu, Fredrik Ronquist, Goeran Nordlander Jan 2007

The Cynipoid Genus Paramblynotus: Revision, Phylogeny, And Historical Biogeography (Hymenoptera, Liopteridae), Zhiwei Liu, Fredrik Ronquist, Goeran Nordlander

Faculty Research & Creative Activity

The genus Paramblynotus is the most species-rich genus of the so-called macrocynipoids, the large cynipoid parasitoids of wood-boring and cone-boring insect larvae. The species range in size from some of the largest to the smallest macrocynipoids, comparable in size to microcynipoids. Paramblynotus members occur on all continents except Europe and Australia, with most species being tropical or subtropical. The biology is poorly known but a few observations indicate that the species are parasitoids of beetle larvae. In this monographic revision of the genus, we present a species-level cladistic analysis based on qualitative and quantitative features of the external morphology. For …


Specimen Catalog, Part 4, Brian D. Frank Jan 2002

Specimen Catalog, Part 4, Brian D. Frank

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Part 3, Brian D. Frank Jan 2002

Specimen Catalog, Part 3, Brian D. Frank

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Polly Campbell Jan 1998

Specimen Catalog, Polly Campbell

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Part 2, Brian D. Frank Jan 1998

Specimen Catalog, Part 2, Brian D. Frank

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Tagide Decarvalho Jan 1997

Specimen Catalog, Tagide Decarvalho

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Benjamin J. Frey Jan 1997

Specimen Catalog, Benjamin J. Frey

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog & Field Notes, Angela L. Adams Jan 1995

Specimen Catalog & Field Notes, Angela L. Adams

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog & Field Notes, Angela L. Adams Jan 1994

Specimen Catalog & Field Notes, Angela L. Adams

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Field Notes, Jonathan L. Dunnum Jan 1993

Field Notes, Jonathan L. Dunnum

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Pablo M. Marquet Jan 1993

Specimen Catalog, Pablo M. Marquet

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog & Field Notes, Sara V. Brant Jan 1993

Specimen Catalog & Field Notes, Sara V. Brant

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Jonathan L. Dunnum Jan 1992

Specimen Catalog, Jonathan L. Dunnum

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Tom A. Collins Jan 1992

Specimen Catalog, Tom A. Collins

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Sandra L. Brantley Jan 1992

Specimen Catalog, Sandra L. Brantley

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Bolivia 1991 Field Notes, Lila Alejandra Sainz-Bacherer Jul 1991

Bolivia 1991 Field Notes, Lila Alejandra Sainz-Bacherer

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Forrest W. Davis May 1991

Specimen Catalog, Forrest W. Davis

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen List, Lila Alejandra Sainz-Bacherer Jan 1991

Specimen List, Lila Alejandra Sainz-Bacherer

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Robert W. Dickerman Jan 1991

Specimen Catalog, Robert W. Dickerman

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Description Of The Tadpoles Of Gastrophryne Pictiventris And Nelsonophryne Aterrima (Anura: Microhylidae), With A Review Of Morphological Variation In Free-Swimming Microhylid Larvae, Maureen A. Donnelly, Rafael O. De Sá, Craig Guyer Jun 1990

Description Of The Tadpoles Of Gastrophryne Pictiventris And Nelsonophryne Aterrima (Anura: Microhylidae), With A Review Of Morphological Variation In Free-Swimming Microhylid Larvae, Maureen A. Donnelly, Rafael O. De Sá, Craig Guyer

Biology Faculty Publications

The tadpoles of Gastrophryne pictiventris and Nelsonophryne aterrima are described based on material collected in Costa Rica and Panama, respectively. The tadpole of G. pictiventris resembles those of the other species of Gastrophryne. The tadpole of N. aterrima differs from other New World microhylid tadpoles in location of the vent tube (medial), the spiracular opening (ventral to the gut), and eyes (dorsolateral). The unique configuration of mouthparts in N. aterrima is described. Morphological variation in microhylid tadpoles is reviewed and six larval characters are analyzed cladistically for IO New World microhylid genera.


Field Notes, Joseph A. Cook Jan 1990

Field Notes, Joseph A. Cook

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Field Notes, Joseph A. Cook Jan 1989

Field Notes, Joseph A. Cook

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Field Notes, Forrest W. Davis Jan 1989

Field Notes, Forrest W. Davis

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Field Notes, Jennifer K. Frey Jan 1989

Field Notes, Jennifer K. Frey

Division of Mammals - Field Notes and Catalogs

No abstract provided.


Specimen Catalog, Forrest W. Davis Jan 1989

Specimen Catalog, Forrest W. Davis

Division of Mammals - Field Notes and Catalogs

No abstract provided.