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Full-Text Articles in Life Sciences

Biochar As A Soil Amendment For Willow And Cottonwood Plantings In A Riparian Restoration, Brian Clyde Sechler Jan 2018

Biochar As A Soil Amendment For Willow And Cottonwood Plantings In A Riparian Restoration, Brian Clyde Sechler

Ecology & Evolutionary Biology Graduate Theses & Dissertations

Riparian areas provide some of the most valuable ecosystem services of any habitat type, both for native flora and wildlife, as well as human society. The global degradation of these critical systems makes their restoration imperative for the preservation of overall ecological integrity since depleted riparian corridors will have cascading effects that pervade upland and downstream regions alike. In western river systems there are two key limiting factors that can lead to failures during re-vegetation efforts along riparian stream banks: one is a lack of available soil nutrients, and the other is a lack of soil moisture. Biochar has been ...


Quantitative Conservation Of The Gray Wolf (Canis Lupus): Implications Of Monitoring And Modeling The Yellowstone Wolves, Michael Procko Jan 2018

Quantitative Conservation Of The Gray Wolf (Canis Lupus): Implications Of Monitoring And Modeling The Yellowstone Wolves, Michael Procko

Undergraduate Honors Theses

The 1995 reintroduction of wolves to the Greater Yellowstone ecosystem had lasting effects on our understanding of reintroduction biology as a whole. However, continued study of a system as complex and intricately interwoven as this should be done with minimal human influence on the ecosystem. The states comprising the tri-state area surrounding Yellowstone National Park—Wyoming, Idaho, and Montana—have recently delisted wolves from the endangered species list. Here, I assess the greater implications in conservation that can be deduced from quantitative analysis of the Yellowstone wolves, and question whether the species is, in fact, stable enough for delisting in ...


Forest Resource Overlap In Humans And Tonkin Snub-Nosed Monkeys Of Ha Giang Province, Vietnam: Theoretical And Conservation Implications, Amy Louise Harrison Levine Apr 2016

Forest Resource Overlap In Humans And Tonkin Snub-Nosed Monkeys Of Ha Giang Province, Vietnam: Theoretical And Conservation Implications, Amy Louise Harrison Levine

Anthropology Graduate Theses & Dissertations

Co-occurring primates differentiate habitats and resource use patterns across spatial and temporal scales. Such differential forest use can play a significant role in resource partitioning, especially in phylogenetically related taxa. When it comes to primate communities, however, it is all too often that human primates are excluded from such analyses. The research presented here is the first in-depth analysis of human-nonhuman primate forest use overlap in Vietnam. By applying a mixed methods toolkit, quantitative and qualitative data were gathered regarding people and monkeys sharing forest resources within the Tonkin Snub-Nosed Monkey Species and Habitat Conservation Area. Direct observations of the ...


Biogeochemical Couplings Among Earth’S Ecosystems: A Focus On Old-Growth Tropical Rainforest, Philip Graham Taylor Jan 2012

Biogeochemical Couplings Among Earth’S Ecosystems: A Focus On Old-Growth Tropical Rainforest, Philip Graham Taylor

Ecology & Evolutionary Biology Graduate Theses & Dissertations

This dissertation explores how physical and biological processes organize the interaction of carbon and nutrient cycles, which underpin life on Earth. In Chapter 2, I establish that ecosystem nitrate accrual exhibits consistent and negative nonlinear correlations with organic carbon availability along a hydrologic continuum from soils, through fresh- water systems and coastal margins, to the open ocean. Across this diversity of environments, we find evidence that resource stoichiometry strongly influences nitrate accumulation by regulating a suite of microbial processes that couple dissolved organic carbon and nitrate cycling.

In Chapter 3, I address the climate sensitivity of carbon cycling in old-growth ...