Digital Commons Network^™

Managing Lake Fertility Within The Guidelines Of A Nutrient Management Plan And Based On Algal Nutrient Limitation, Bradley J. Austin, J. Thad Scott, Brian E. Haggard

Arkansas Water Resources Center Technical Reports

The specific objectives were to first, monitor nutrients, algal biomass, and water clarity in lakes Cove, Spring, and Wedington. Second, evaluate whether algal growth in each of the lakes was limited by N, P, or both N and P. This research was conducted to help USFS better manage lake fertilization to maximize algal growth and improve the fisheries within these lakes.

Resource Assessment Report Temperate Demersal Elasmobranch Resource Of Western Australia, Matias Braccini, Nick Blay, S. A. Hesp, Brett Molony

Fisheries Research Reports

Whiskery (Furgaleus macki), gummy (Mustelus antarcticus), dusky (Carcharhinus obscurus) and sandbar (C. plumbeus) sharks are the main (~80% of the shark catch) shark species of the Temperate Demersal Elasmobranch Resource (TDER).

Index To Volume 86

Nebraska Bird Review

16 pages, from Aguillon, Stepfanie 103, to Yungbluth, Linda 149

13 Terrestrial Wetlands, Randall Kolka, Carl T Trettin

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The objective of this chapter is to characterize the distribution of carbon stocks and fluxes in terrestrial wetlands within North America. The approach was to synthesize available literature from field measurements with analyses of resource inventory data to estimate wetland area, carbon stocks, and net ecosystem exchange (NEE) of carbon and methane (CH4) fluxes of terrestrial wetlands (see Appendices 13A, p. 547, and 13B, p. 557, for details1). Then, the findings employed from large-scale simulation studies provided additional context, with consideration given to the effects of disturbance regimes, restoration and creation of terrestrial wetlands, and the application of modeling tools …

Troubled Waters: Threats And Extinction Risk Of The Sharks, Rays And Chimaeras Of The Arabian Sea And Adjacent Waters, Rima W. Jabado, Peter M. Kyne, Riley A. Pollom, David A. Ebert, Colin A. Simpfendorfer, Gina M. Ralph, Shakha S. Al Dhaheri, K. V. Akhilesh, Khadeeja Ali, Mohamud Hassan Ali

Biological Sciences Faculty Publications

The extinction risk of sharks, rays and chimaeras is higher than that for most other vertebrates due to low intrinsic population growth rates of many species and the fishing intensity they face. The Arabian Sea and adjacent waters border some of the most important chondrichthyan fishing and trading nations globally, yet there has been no previous attempt to assess the conservation status of species occurring here. Using IUCN Red List of Threatened Species Categories and Criteria and their guidelines for application at the regional level, we present the first assessment of extinction risk for 153 species of sharks, rays and …

Examining Patterns In Nest Predation Using Artificial Nests, Victoria L. Simonsen

School of Natural Resources: Dissertations, Theses, and Student Research

The use of artificial nests to study the predation of avian nests has faced disregard by ecologists due to inconsistencies found between the survival rates of real and artificial nests across studies and reviews. The negative perception of artificial nests providing an inconsistent assessment of survival has thus fostered the perception that artificial nests are a secondary option to be used to overcome logistical hurdles associated with achieving sufficient sample sizes in systems where study species are rare or elusive, or as merely a preliminary method to study predation across gradients. We argue that the greatest mistake ecologists have made …

Museum Metabarcoding: A Novel Method Revealing Gut Helminth Communities Of Small Mammals Across Space And Time, Stephen E. Greiman, Joseph A. Cook, Vasyl V. Tkach, Eric P. Hoberg, Damian M. Menning, Andrew G. Hope, Sarah A. Sonsthagen, Sandra L. Talbot

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Natural history collections spanning multiple decades provide fundamental historical baselines to measure and understand changing biodiversity. New technologies such as next generation DNA sequencing have considerably increased the potential of museum specimens to address significant questions regarding the impact of environmental changes on host and parasite/pathogen dynamics. We developed a new technique to identify intestinal helminth parasites and applied it to shrews (Eulipotyphla: Soricidae) because they are ubiquitous, occupy diverse habitats, and host a diverse and abundant parasite fauna. Notably, we included museum specimens preserved in various ways to explore the efficacy of using metabarcoding analyses that may enable identification …

Genetic Variants In The Sirt6 Transcriptional Regulatory Region Affect Gene Activity And Carcass Quality Traits In Indigenous Chinese Beef Cattle (Bos Taurus), Lin-Sheng Gui, Sayed Haidar Abbas Raza, Matthew Garcia, Yong-Gang Sun, Irfan Ullah, Yin-Cang Han

Animal, Dairy, and Veterinary Science Faculty Publications

Background: The aim of this study was to analyze potential influences of polymorphisms within the regulatory region of the bovine SIRT6 gene on carcass quality traits. Expression analyses suggested that SIRT6 gene is predominately expressed in kidney, compared with other tissues. In 535 indigenous Chinese beef cattle, two novel single nucleotide polymorphisms (SNPs) were identified within the promoter region of the SIRT6 gene.

Results: Association analysis indicated that G allele of the c.-1100 A > G had a positive effect on fat deposition, and the Hap4/4 diplotype had more favourable results than other dipoltypes with respect to the evaluation of carcass …

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 …

Clethrionomys Gapperi, Roger W. Barbour

Roger W. Barbour Slide Collection

Clethrionomys gapperi

Clethrionomys Gapperi, Roger W. Barbour

Roger W. Barbour Slide Collection

Clethrionomys gapperi

Microtus Chrotorrhinus, Roger W. Barbour

Roger W. Barbour Slide Collection

Microtus chrotorrhinus

Microtus Longicaudus, Roger W. Barbour

Roger W. Barbour Slide Collection

Microtus longicaudus

Microtus Longicaudus, Roger W. Barbour

Roger W. Barbour Slide Collection

Microtus longicaudus

Microtus Montanus, Roger W. Barbour

Roger W. Barbour Slide Collection

Microtus montanus

Microtus Ochrogaster, Roger W. Barbour

Roger W. Barbour Slide Collection

Microtus ochrogaster

Microtus Pennsylvanicus Pullatus, Roger W. Barbour

Roger W. Barbour Slide Collection

Microtus pennsylvanicus pullatus

Microtus Pennsylvanicus Pullatus, Roger W. Barbour

Roger W. Barbour Slide Collection

Microtus pennsylvanicus pullatus

Pitymys Pinetorum, Roger W. Barbour

Roger W. Barbour Slide Collection

Pitymys pinetorum

Neotoma Albigula, Roger W. Barbour

Roger W. Barbour Slide Collection

Neotoma albigula

Neotoma Cinera, Roger W. Barbour

Roger W. Barbour Slide Collection

Neotoma cinera

Neotoma Cinera, Roger W. Barbour

Roger W. Barbour Slide Collection

Neotoma cinera

Neotoma Floridana, Roger W. Barbour

Roger W. Barbour Slide Collection

Neotoma floridana

Neotoma Micropus, Roger W. Barbour

Roger W. Barbour Slide Collection

Neotoma micropus

Ochrotomys Nuttalli, Roger W. Barbour

Roger W. Barbour Slide Collection

Ochrotomys nuttalli

Onychomys Torridus, Roger W. Barbour

Roger W. Barbour Slide Collection

Onychomys torridus

Ochrotomys Nuttalli, Roger W. Barbour

Roger W. Barbour Slide Collection

Ochrotomys nuttalli

Ondatra Zibethicus, Roger W. Barbour

Roger W. Barbour Slide Collection

Ondatra zibethicus

Oryzomys Palustris, Roger W. Barbour

Roger W. Barbour Slide Collection

Oryzomys palustris

Peromyscus Eremicus, Roger W. Barbour

Roger W. Barbour Slide Collection

Peromyscus eremicus