BowdenBuddle2012b

Reference

Bowden, J.J. and Buddle, C.M. (2012) Life history of tundra-dwelling wolf spiders (Araneae: Lycosidae) from the Yukon Territory, Canada. Canadian Journal of Zoology, 90(6):714-721. (URL )

Abstract

We studied populations of three tundra-dwelling wolf spider (Lycosidae) species to determine reproductive trait relationships and developmental timing in the Arctic. We collected 451 Pardosa lapponica (Thorell, 1872), 176 Pardosa sodalis Holm, 1970, and 117 Pardosa moesta Banks, 1892 during summer 2008. We used log-likelihood ratio tests and multiple linear regressions to determine the best predictors of fecundity and relative reproductive effort. Female body size best explained the variation in fecundity and body condition was the best predictor for relative reproductive effort. We tested for a trade-off between the allocation of resources to individual eggs and the number of eggs produced (fecundity) within each species using linear regression. There was variation in detectable egg size and number trade-offs among sites and these may be related to local variation in resource allocation linked to density-related biotic or abiotic factors. These findings contribute to knowledge about the fitness of arctic wolf spiders in the region of study and are particularly relevant in light of the effects that climate changes are predicted to have on the arctic fauna.

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@ARTICLE { BowdenBuddle2012b,
    AUTHOR = { Bowden, J.J. and Buddle, C.M. },
    TITLE = { Life history of tundra-dwelling wolf spiders (Araneae: Lycosidae) from the Yukon Territory, Canada },
    JOURNAL = { Canadian Journal of Zoology },
    YEAR = { 2012 },
    VOLUME = { 90 },
    PAGES = { 714-721 },
    NUMBER = { 6 },
    ABSTRACT = { We studied populations of three tundra-dwelling wolf spider (Lycosidae) species to determine reproductive trait relationships and developmental timing in the Arctic. We collected 451 Pardosa lapponica (Thorell, 1872), 176 Pardosa sodalis Holm, 1970, and 117 Pardosa moesta Banks, 1892 during summer 2008. We used log-likelihood ratio tests and multiple linear regressions to determine the best predictors of fecundity and relative reproductive effort. Female body size best explained the variation in fecundity and body condition was the best predictor for relative reproductive effort. We tested for a trade-off between the allocation of resources to individual eggs and the number of eggs produced (fecundity) within each species using linear regression. There was variation in detectable egg size and number trade-offs among sites and these may be related to local variation in resource allocation linked to density-related biotic or abiotic factors. These findings contribute to knowledge about the fitness of arctic wolf spiders in the region of study and are particularly relevant in light of the effects that climate changes are predicted to have on the arctic fauna. },
    DOI = { 10.1139/z2012-038 },
    EPRINT = { http://www.nrcresearchpress.com/doi/pdf/10.1139/z2012-038 },
    OWNER = { amriv2 },
    TIMESTAMP = { 2012.08.16 },
    URL = { http://www.nrcresearchpress.com/doi/abs/10.1139/z2012-038 },
}

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