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Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
Faecal-Centric Approaches To Wildlife Ecology And Conservation; Methods, Data And Ethics, C. T. Darimont, T. E. Reimchen, H. M. Bryan, P. C. Paquet
Faecal-Centric Approaches To Wildlife Ecology And Conservation; Methods, Data And Ethics, C. T. Darimont, T. E. Reimchen, H. M. Bryan, P. C. Paquet
Ethics and Conservation Biology Collection
Abundant and commonly encountered in the field, wildlife faeces have long attracted scientists. Recent advances in molecular techniques, however, especially when coupled with creative study designs, can now yield a great variety of high quality data. Herein, we review the opportunities and challenges of faecal-centric approaches to address ecological and conservation questions using wolves of coastal British Columbia, Canada, as a case system. We begin by discussing methodological considerations, which should have broad applicability to any wildlife study system. We then summarize the extensive and unique variety of data that has emerged from our ‘facts from faeces’ approach with wolves, …
Decadal-Scale Changes On Coral Reefs In Quintana Roo, Mexico, Thaddeus Allen Nicholls
Decadal-Scale Changes On Coral Reefs In Quintana Roo, Mexico, Thaddeus Allen Nicholls
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In 1988 data on coral reef community composition were collected from two areas, Akumal and Chemuyil, Quintana Roo, Mexico, ranging from 5-35m depth. These areas were revisited in 2005 and data were collected by the same methods and at the same depths as in 1988. Data from 1988 and 2005 were compared to determine if the coral reefs had undergone significant changes, and what specific changes had occurred. Chi-square analysis determined that community composition data collected in 1988 are significantly different from data collected in 2005 at all sites and depths within the categories of corals, gorgonians, sponges, and macroalgae. …
Grades 9-10 Energy Sources, Roxana Estrada
Grades 9-10 Energy Sources, Roxana Estrada
Science
This is a science lesson for students in ninth and tenth grade on Energy Sources that can be used in an ecology class. Through this lesson students will be able to make decisions and acknowledge that that their activities had a profound impact on the physical and living environment and students will be able to explain the most common energy sources. Students will be tiered by ability and within their groups they will choose between two topics based on interest.
Fish Distributions And Nutrient Cycling In Streams: Can Fish Create Biogeochemical Hotspots, Peter B. Mcintyre, Alexander S. Flecker, Michael J. Vanni, James M. Hood, Brad W. Taylor, Steven A. Thomas
Fish Distributions And Nutrient Cycling In Streams: Can Fish Create Biogeochemical Hotspots, Peter B. Mcintyre, Alexander S. Flecker, Michael J. Vanni, James M. Hood, Brad W. Taylor, Steven A. Thomas
Dartmouth Scholarship
Rates of biogeochemical processes often vary widely in space and time, and characterizing this variation is critical for understanding ecosystem functioning. In streams, spatial hotspots of nutrient transformations are generally attributed to physical and microbial processes. Here we examine the potential for heterogeneous distributions of fish to generate hotspots of nutrient recycling. We measured nitrogen (N) and phosphorus (P) excretion rates of 47 species of fish in an N-limited Neotropical stream, and we combined these data with population densities in each of 49 stream channel units to estimate unit- and reach-scale nutrient recycling. Species varied widely in rates of N …
The Reproductive Ecology Of Graptemys Geographica In The Central Canal, Kati Keppen Rush
The Reproductive Ecology Of Graptemys Geographica In The Central Canal, Kati Keppen Rush
Undergraduate Honors Thesis Collection
Life for all organisms involves carefully managing a limited amount of resources. In many cases these resources affect how organisms Jive on a daily basis. In addition to competition from other species, organisms face competition within their own species, populations, and niches. Those individuals that manage their resources effectively will increase their chances of survival, reproduction, and the continuation of their genes in the gene pool. Studies that focus on life history characteristics of organisms aim to understand the mechanisms used by organisms to increase the chances that their genes will remain in thegenepoolpasttheirown Iifetime.Thegoal ofthesemechanisms istoensuresurvival and maximize reproduction. …
Undergraduate Research: Communicating Ecological Field Studies To Local School Children Through Outreach And Curriculum, Lee Kats, Shannon Rollert, Trevor Thurling, Richard Johnson, Daniel Cho, Sean Landis, Randall Van Dragt, Gloria Van Dragt
Undergraduate Research: Communicating Ecological Field Studies To Local School Children Through Outreach And Curriculum, Lee Kats, Shannon Rollert, Trevor Thurling, Richard Johnson, Daniel Cho, Sean Landis, Randall Van Dragt, Gloria Van Dragt
Lee Kats
The writers describe a program to communicate undergraduate research results to local K–12 students in California. They describe the development of a curriculum and an outreach effort to convey findings of ecological field work undertaken by Pepperdine University students. They then describe program implementation and program benefits.