Environmental Biology Species Sampling
Order ID: 89JHGSJE83839 Style: APA/MLA/Harvard/Chicago Pages: 5-10 Instructions:
Environmental Biology Species Sampling
Environmental/Biology Sampling & Statistics Assignment:
Answer each of the following questions to the best of your ability. If you type your answers on this sheet, please make sure your answers are in bold to distinguish them from my questions. [Pause to think about what I mean by best of your ability. I expect reasonably detailed and thorough answers to each question.]
1. You are interested in studying the density of red winged blackbirds (Agelaius phoeniceus) in marshes throughout northeastern PA. In advance of the field season you: identify 50 suitable marshes; hire 5 inexperienced undergraduate field assistants; and set aside a few days to train the students before they head off for the summer to each measure the density of blackbirds in 10 of the marshes. Considering the nature of your research question and inexperience of your researchers, what technique do you use to sample the bird populations in this study?
2. (5pts) You are interested in measuring the density of wood frog tadpoles (Lithobates sylvaticus) in 15 vernal pools within several tracts of the Pinchot State Forest. To estimate tadpole density, you visit each pool twice and expend a standardized effort to catch tadpoles using 20 sweeps with a dipnet. In the first pool on the first visit you collect, mark (with a Visible Implant Elastomer), and release 85 tadpoles. You return to the same pool several days later, expend the same effort, and collect 95 tadpoles, 25 of which were marked. Whats your best estimate of the tadpole population size in the pool? Show your work or describe how you came to the answer.
3. (5pts) Youre a scientist who studies the history of mammals in Europe. Your observational field data show a strong relationship between mammal species richness and human population density; local mammal species extinctions increased over the past 1000 years as human population density increased. Are these data strong evidence that human populations caused mammal extinctions? Why or why not?
Environmental Biology Species Sampling
RUBRIC
Excellent Quality
95-100%
Introduction 45-41 points
The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.
Literature Support
91-84 points
The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.
Methodology
58-53 points
Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met.
Average Score
50-85%
40-38 points
More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided.
83-76 points
Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration.
52-49 points
Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met.
Poor Quality
0-45%
37-1 points
The background and/or significance are missing. No search history information is provided.
75-1 points
Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration.
48-1 points
There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met
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Environmental Biology Species Sampling