Extrinsic Effects on Long-term Population Trends of Virginia Opossums and Striped Skunks at a Large Spatial Scale

Long-term data on wildlife populations are needed to elucidate the relative importance of extrinsic factors on population dynamics; however, such data are rare for most species such as medium-sized mammals. We present long-term population indices for Virginia opossums (Didelphis virginiana) and stri...

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