Peromyscus leucopus population study in varying periods of forest growth.

Abstract

This experiment tested a hypothesis connecting mouse (Peromyscus leucopus) populations to stages of forest succession. Traps were set to ascertain an estimate of mouse population in 1911, 1954, 1980 burn sites designed to mimic forest succession and at the old growth forest site at Colonial Point. Mouse population data were independently collected, but the numbers were insufficient for statistically significant conclusions. Data concerning leaf litter, litter weight, seed distribution, fallen log occurrences and tree species distribution were collected and analyzed. Significant differences were found in light readings and fallen log occurrences. Analysis of Dr. Phil Myers' past data revealed no significant connection between mouse populations at a 1911 burn site and the old growth forest at Colonial Point. One might speculate low population numbers skew data, or perhaps mice populations behave differently under stress on the fringe of their range.http://deepblue.lib.umich.edu/bitstream/2027.42/54984/1/3425.pdfDescription of 3425.pdf : Access restricted to on-site users at the U-M Biological Station