Food webs consist of a combination of bottom-up (resource-driven) and top-down (predator-driven) effects. The strength of these effects depends on the context in which they occur. I investigated food web (trophic) relationships between wolf (Canis lupus) predation, elk (Cervus elaphus) herbivory, aspen (Populus tremuloides Michaux) recruitment, and fire. The study...
Substantial scientific investment has been directed towards understanding factors that influence distribution patterns and animals' remarkable ability for precise orientation and navigation, yet fundamental gaps in our knowledge remain. In my dissertation, I applied emerging genetic technologies to conduct a top-down and bottom-up investigation of animal movement and cue perception....
Habitat fragmentation studies have produced complex results that are challenging
to synthesize. Inconsistencies among studies may result from variation in
the choice of landscape metrics and response variables, which is often compounded
by a lack of key statistical or methodological information. Collating
primary datasets on biodiversity responses to fragmentation in...
Coastal lagoons are very heterogeneous systems covering a wide range of physiographical and hydrological characteristics. The hypothesis of the present investigation was to test physiographical and hydrological characteristics of coastal lagoons affecting their physico-chemical properties and their buffer capacity against nutrient enrichment. We compared data collected during a whole annual...
In Africa, there is a growing awareness of the need to learn from the fisheries experiences of Asia, where the fisheries conditions are similar, to solve the deepening crisis in fisheries and poverty in the continent. As a response, technical assistance in the areas of fish stock assessment, fisheries management...
Bedrock meandering rivers are sinuous channels that pair steep bedrock outside banks with lower gradient slip-off slopes on the inside of bends. These rivers have the potential to record information on climatic and tectonic “external” forcings in their morphology (e.g., longitudinal profiles, strath terraces, channel and valley dimensions). However, geology...
How do librarians in Spain engage with Wikipedia (and Wikidata, Wikisource, and other Wikipedia sister projects) as Wikimedia Movement Organizers? And, what motivates them to do so? This article reports on findings from 14 interviews with 18 librarians. The librarians interviewed were multilingual and contributed to Wikimedia projects in Castilian...
Beschta et al. (2013) synthesized the ecological effects 41 of climate change and ungulate
grazing on western public lands, grounding their recommendations in ecological considerations
and federal agency legal authority and obligations. Svejcar et al. (2014) suggest that Beschta et
al. (2013) neither “present a balanced synthesis of the scientific...
After decades of expert-based modernization efforts that have had profound negative impacts on human and environmental health, Ecuador is currently pursuing a rights-based, participatory development paradigm known as sumak kawsay or "the good life". Despite its promises of inclusion and interculturality, this approach continues to rely on highly trained specialists,...
Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that...
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