Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"habitat sampling"”.
-
Analyses of Two Aspects of Study Design for Bioassessment With Benthic Macroinvertebrates: Single Versus Multiple Habitat Sampling and Taxonomic Identification Level
… of evaluating the ecological condition of habitats by surveying the resident assemblages of living organisms. Conducting bioassessment with benthic macroinvertebrates is still evolving and continues to be refined. There are strongly divided opinions about study design, sampling methods, …
-
Examining the Impacts of Valley Fills in Stream Ecosystems on Amphibian and Aquatic Insect Communities in Southeastern Kentucky
… across the region, March–June 2014. Salamander sampling consisted of three sampling periods on a monthly basis, April–June 2014. Aquatic insect sampling consisted of a single sampling event in March 2014, with water and habitat sampling occurring during each aquatic insect and salamander …
-
Over-Winter Mortality Of Gizzard Shad (Dorosoma Cepedianum) In Oneida Lake, New York
… 2, I conducted a series of experiments and field sampling to develop a conceptual model of gizzard shad over-winter mortality in Oneida Lake. Gizzard shad exhibited high mortality rates as water temperatures declined prior to ice formation and are highest at temperatures less than 4 degrees C. …
-
Anthropogenic environmental change and habitat occupancy by riparian muskrats in a Midwestern landscape
… at an average of 2.3 (SE = 0.20) out of 5 habitat sampling stations per site, it did not affect site occupancy or turnover. Occupancy patterns may be related to lower predation risk near human development and in wider, deeper streams. Overall, muskrat distribution was related to local and …
-
Habitat, abundance and productivity of the Asian Houbara Chlamydotis macqueenii in Uzbekistan
… fieldwork during 2012–2015 involved distance sampling, nest monitoring and habitat sampling across 14,500 km2 of the Kyzylkum Desert in Uzbekistan. Contrary to expectations, there appeared to be no negative landscape-scale association between livestock density and the abundance of male …
-
Influence of habitat and bat activity on moth community composition and seasonal phenology across habitat types
… conservation strategies. Studies of moth habitat use have primarily focused on access to host plants used by specific moth species. How vegetation structure influences moth communities within and between habitats and mediates the activity of insectivorous bats is understudied. Previous …
-
Red-headed Woodpecker Habitat Selection and Breeding Ecology on Fort Drum Military Installation, New York
… information regarding red-headed woodpecker habitat use or demography. A detailed knowledge of habitat requirements and population dynamics is prerequisite for the effective conservation and management of imperiled wildlife populations, and this knowledge gap likely precludes informed …
-
Assessing the Sustainability of Fish Communities in Glacial Lakes: Habitat Inventories and Relationships Between Lake Attributes and Fish Communities
<p>Broad-scale aquatic habitat inventories have rarely been done in South Dakota waters. Even less has been done to understand the relationships between habitat variables and the fish communities in large lakes. The objectives of my research were to: 1) quantify the available aquatic habitats in 15 …
-
Habitat suitability and population characteristics of smallmouth bass and rock bass in the Powell River, Virginia
… rock bass (Ambloplites rupestris), and habitat conditions were conducted in the Powell River, Virginia, to identify potential habitat limitations for these species. The study area consisted of three reaches, which were determined in 1987. The upstream reach was used to monitor effects of …
-
Developing Habitat Suitability Criteria for Individual Species and Habitat Guilds in the Shenandoah River Basin
… An often-suggested approach has been to use habitat guilds to incorporate the diversity found in these systems. My goal is to determine the feasibility of developing habitat suitability criteria (HSC) for the entire fish assemblage in the North and South Fork Shenandoah River, Virginia, using …