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Comparison of the Body Mass of Mammals Birds, and Sea Creatures to their…
Comparison of the Body Mass of Mammals Birds, and Sea Creatures to their Basal Metabolic Rate and Habitat Depth.
Abstract
Background
Heavier and denser things sink in water so one could expect heavier organisms to live at lower depths of the oceans.
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Results
Mammals at lower depths are actually typically much smaller in mass than the ones closer to the surface.
Introduction
Background
We see there are mammals of all shapes and sizes when studying sea creatures, but the most fascinating ones are the unexplored ones.
Question
Is there a relationship between the depth of habitat for a mammal in the ocean compared to their body size?
Hypothesis
If I analyze data from quaardvark about the mass of mammals in the oceans compared to the depth of their habitat, then heavier mammals will be at the lowest depths.
Rationale: Typically, heavier and denser things sink lower in the ocean so I would expect there to be a trend between depth of habitat and mass of the creature.
Methods
Design
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Dependent Variables: Body Mass (g), BMR (W), Mass-Spec BMR (W/g), and Depth (m)
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Procedures
Extracted data from Quaardvark about Birds and Mammals through the use of queries and imported into Microsoft Excel.
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Ran t-tests, Standard Deviation formulas and SEM formulas.
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Results
Paragraphs
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There were a lot of outliers and a large variety of depths for smaller creatures, however, as the body mass increased, the likelihood for the creature to be near the surface increased.
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Discussion
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Middle Paragraph
Secondary Findings
Mammals have a much higher body mass and basal metabolic rate on average, but birds have about twice as much mass-specific basal metabolic rate.
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Literature Cited
End Citations
Schreer JF, Kovacs KM. 1997. Allometry of diving capacity in air-breathing vertebrates. Can J Zool. 75(3):339-358
Glazier Ds. 2008. Effects of metabolic level on the body-size scaling of metabolic rate in birds and mamals. Proceedings Biological Sciences. 275(1641):1405-1410.doi:10.1098?rspb.2008.0118
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