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Articles 1 - 3 of 3
Full-Text Articles in Ecology and Evolutionary Biology
Holocene Human Influence In The Ecuadorean Amazon, Meghan Mary O'Connor
Holocene Human Influence In The Ecuadorean Amazon, Meghan Mary O'Connor
Theses and Dissertations
The extent to which the spectacular biodiversity of Amazonia has been shaped by Pre-Columbian humans is actively debated. Forests that today appear to be pristine wildernesses may have supported complex human societies as recently as 300 years ago. Understanding human history and the potential successional trajectories that result from site abandonment are important to conservation and policy-making. The Yasuni, is famed for its human and biological diversity and yet its pre-history is poorly known. Lake Añangucocha, a small blackwater lake in northwestern Ecuador, is unusual in that it is not a riverine lake, and has the potential to provide the …
Effects Of Precessional Forcing In The Early Stages Of The 100-K World, Molly Kingston
Effects Of Precessional Forcing In The Early Stages Of The 100-K World, Molly Kingston
Theses and Dissertations
Much of what we know about the Andes today comes from studying a heavily human-manufactured landscape. However, before the presence of human modification in this system (~13,000 years ago), past interglacial and glacial cycles, influenced by changes in Earth cycles (eccentricity, obliquity, and precession), were the cause of major landscape re-organization. The variability in intensity and duration of these events and the probable response of the plant community is not well understood. Very few records in South America extend far enough back in time to capture these changes. Those records that do exist, lack an independent chronology and instead rely …
Population Genetics Of The Florida Scrub-Jay At Kennedy Space Center, Cory James Spern
Population Genetics Of The Florida Scrub-Jay At Kennedy Space Center, Cory James Spern
Theses and Dissertations
The Florida Scrub-Jay (Aphelocoma coerulescens) has suffered ~90% reduction in population size due to degradation of habitat. This loss of habitat has led to the fragmentation of many subpopulations and it is unknown how this change in connectivity has affected their population genetics. A greater understanding of how populations have changed through time can be achieved using genetics. Past population genetic studies have primarily focused at the state-wide level, but more information is needed about how groups interact at smaller spatial scales. Using nine microsatellite loci, the genetic structure of scrub-jay was investigated at the Kennedy Space Center (KSC) Brevard …