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 20 of 273 for “"Terrestrial and Aquatic Ecology"”.
-
Comparison Of Spawning Habitat And Nest Density Between Buck Darter (etheostoma Nebra) And Striped Darter (etheostoma Virgatum) Populations In The Cumberland River Drainage, Kentucky
… an imperiled, small-stream species in the Cumberland River drainage in southern Kentucky. It was originally thought to be a population of the Striped Darter (E. virgatum) species and was prevalent throughout the Buck Creek system. It was separated from the Striped Darter and deemed a separate …
-
Life history and microbiome analysis of freshwater fingernail clams (sphaeriidae) exposed to trace metal pollution
<p>Aquatic habitats impacted by anthropogenic activities such as mining can contain metal mixtures of nonessential and essential trace metals. The consequences of chronic exposure to metal mixtures on the life history of benthic organisms are unclear, as are the potential effects on host-associated …
-
Phenotypic Plasticity of Geographically Central and Peripheral Populations of Jefferson Salamanders (Ambystoma jeffersonianum) in Response to Simulated Climate Change
… biogeographical hypotheses indicate isolated and less abundant populations experience reduced gene flow and genetic diversity that may limit phenotypic plasticity, contrasting with evidence suggesting more variable habitats select for increased plasticity in peripheral populations. To gain …
-
Vegetation community development after dam removal on the Elwha River
… largest dam removal project in the world to date and serves as a case study for the ecological effects of large dam removal. The 2012-2014 removal of two dams on the Elwha River exposed a cumulative 2.76 km2 of previously inundated surfaces. Environmental conditions including sediment texture and …
-
Spatial Variation in Basal Resources and Trophic Position of Selected Fishes of the North-Central Gulf of Mexico
… with freshwater influx that varies on spatial and temporal scales. Freshwater input exerts influence on the isotope values of organisms living in coastal ecosystems. The objectives of this study were to determine relationships between total length and isotope value, estimate basal resource …
-
Targeted short-term nutrient reduction to manage Ventenata dubia an invasive winter annual grass: soil and plant responses
… degraded extensive ecosystems around the world and continue to invade new ones yearly. IWAGs readily form large monocultures or near monocultures, thus management and restoration goals largely focus on maintaining or increasing plant diversity in impacted ecosystems. Unfortunately, common …
Page 1 of 14