ResearchFind, evaluate, and integrate sources. Learn how to find, evaluate, and integrate sources for a research paper. Review the research process. Narrow your argument and write effectively for your audience.
The theory of optimal foraging and its relation to central foraging was examined by using the beaver as a model.
Beaver food choice was examined by noting the species of woody vegetation, status chewed vs. Beavers avoided certain species of trees and preferred trees that were close to the water.
No preference for tree circumference was noted. These data suggest that beaver food choice concurs with the optimal foraging theory.
Introduction In this lab, we explore the theory of optimal foraging and the theory of central place foraging using beavers as the model animal.
|poLab : Guide to Writing a Partial Lab Report||The Parts of a Laboratory Report Introduction:|
Foraging refers to the mammalian behavior associated with searching for food. The optimal foraging theory assumes that animals feed in a way that maximizes their net rate of energy intake per unit time Pyke et al.
An animal may either maximize its daily energy intake energy maximizer or minimize the time spent feeding time minimizer in order to meet minimum requirements. Herbivores commonly behave as energy maximizers Belovsky and accomplish this maximizing behavior by choosing food that is of high quality and has low-search and low-handling time Pyke et al.
The central place theory is used to describe animals that collect food and store it in a fixed location in their home range, the central place Jenkins The factors associated with the optimal foraging theory also apply to the central place theory.
The central place theory predicts that retrieval costs increase linearly with distance of the resource from the central place Rockwood and Hubbell Central place feeders are very selective when choosing food that is far from the central place since they have to spend time and energy hauling it back to the storage site Schoener The main objective of this lab was to determine beaver Castor canadensis food selection based on tree species, size, and distance.
Since beavers are energy maximizers JenkinsBelovsky and central place feeders McGinley and Whitamthey make an excellent test animal for the optimal foraging theory. Beavers eat several kinds of herbaceous plants as well as the leaves, twigs, and bark of most species of woody plants that grow near water Jenkins and Busher By examining the trees that are chewed or not-chewed in the beavers' home range, an accurate assessment of food preferences among tree species may be gained Jenkins The purpose of this lab was to learn about the optimal foraging theory.
We wanted to know if beavers put the optimal foraging theory into action when selecting food. We hypothesized that the beavers in this study will choose trees that are small in circumference and closest to the water.
Since the energy yield of tree species may vary significantly, we also hypothesized that beavers will show a preference for some species of trees over others regardless of circumference size or distance from the central area. The optimal foraging theory and central place theory lead us to predict that beavers, like most herbivores, will maximize their net rate of energy intake per unit time.
In order to maximize energy, beavers will choose trees that are closest to their central place the water and require the least retrieval cost. Since beavers are trying to maximize energy, we hypothesized that they will tend to select some species of trees over others on the basis of nutritional value.
Our research area was located along the edge of the pond and was approximately m in length and 28 m in width.SAMPLE LAB REPORT.
The Optimal Foraging Theory: Food Selection in Beavers Based on Tree Species, Size, and Distance Laboratory 1, Ecology Abstract. Writing a good lab report requires you to include the following parts: Title page that includes the title of the experiment performed, your name and the names of your group project members, your instructor's name, and the date of submission.
Don't Write the Obituary Yet [Susan Evans, Thomas C.
Krivak, M.D.] on leslutinsduphoenix.com *FREE* shipping on qualifying offers. This book is a critically important contribution that highlights a woman's journey with her husband in battling gynecologic cancer.
It provides a raw and at times unfiltered account of a patient s clinical course as well as the . Welcome to the Excelsior College Online Writing Lab (OWL), an award-winning open education resource offering multimedia support for writing and reading.
The main purpose of writing a lab report, Go to the Materials and Methods of the Annotated Sample Lab Report. Results The Discussion section often begins by making a statement as to whether the findings in the Results support or do not support the expected findings stated in the hypothesis.Ý It's important to make such a comparison.
Please review the FAQs and contact us if you find a problem. Credits: 1 Recommended: I would consider this an easier course than the "core" science courses. Course Description: Students will study oceanography as a science from many different aspects.
Chemical, physical, and geological oceanography will be explored. Students will study not only .