Correlating small mammal abundance to climatic variation over twenty years

被引:17
作者
Deitloff, Jennifer [1 ,2 ]
Falcy, Matthew R. [3 ]
Krenz, John D. [2 ]
McMillan, Brock R. [2 ,4 ]
机构
[1] Auburn Univ, Dept Biol, Auburn, AL 36849 USA
[2] Minnesota State Univ, Dept Biol Sci, Mankato, MN 56001 USA
[3] Iowa State Univ, Dept Ecol Evolut & Organismal Biol, Ames, IA 50011 USA
[4] Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA
关键词
long-term studies; meadow vole; Microtus pennsylvanicus; Peromyscus leucopus; population size; precipitation; snow depth; temperature; weather; white-footed mouse; MICROTUS-PENNSYLVANICUS; DENSITY-DEPENDENCE; POPULATION-SIZE; WEATHER; EXTINCTION; VOLE; FOOD;
D O I
10.1644/08-MAMM-A-267R.1
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Little is known about abundance-climate relationships for animals because few long-term field studies address the issue. We present results from a 20-year study of abundance of peromyscus leucopus (white-footed mouse) and Microtus pennsylvantcus (meadow vole) P leucopus exhibited a biennial cycle with an overall population increase M pennsylvanicus did not exhibit a population cycle, and population size declined. We attribute long-term changes in abundance of both species to succession from grass-dominated to tree-dominated vegetation. The only significant association we found between abundance of either species over 20 years and 4 climate variables was a positive relationship between M pennsylvanicus and summer precipitation. However, all but 1 of the potential abundance-climate relationships were significant when temporal subsets of the original data were analyzed. Weak associations may exist between climate and abundance that are contingent upon other unidentified factors, which further suggests that abundance-climate correlations are sensitive to the particular time frame of a study DOI: 10.1644/08-MAMM-A-267R.1
引用
收藏
页码:193 / 199
页数:7
相关论文
共 45 条
  • [21] KOTT E, 1963, ONTARIO J MAMMALOGY, V44, P467
  • [22] LACKEY JA, 1985, MAMMALIAN SPECIES, V247, P1, DOI DOI 10.2307/3503904
  • [23] Modeling biotic and abiotic influences on population size in small mammals
    Lewellen, RH
    Vessey, SH
    [J]. OECOLOGIA, 1998, 113 (02) : 210 - 218
  • [24] Lewellen RH, 1998, ECOL MONOGR, V68, P571, DOI 10.1890/0012-9615(1998)068[0571:TEODDA]2.0.CO
  • [25] 2
  • [26] MADISON D M, 1984, Carnegie Museum of Natural History Special Publication, P267
  • [27] MARINAT PJ, 1987, INSECT OUTBREAKS, P241
  • [28] McMillan BR, 1997, SOUTHWEST NAT, V42, P236
  • [29] McMillan Brock R., 1994, Prairie Naturalist, V26, P107
  • [30] McMillan Brock R., 2005, Prairie Naturalist, V37, P29