Research Output

The lateral extent of the subsidy from an upland stream to riparian lycosid spiders

  Adult aquatic insects emerging from streams can subsidize riparian food webs, but little is known of the spatial extent of these subsidies. Stable isotope (15N) enrichment of aquatic insects, principally a species of stonefly (Plecoptera: Leuctridae), emerging from an upland stream was used to trace the subsidy from the stream ecosystem to riparian spiders (Lycosidae). The downstream profile of spider δ15N correlated closely with that of adult stoneflies, indicating that they were deriving nutrition from aquatic sources. The contribution of adult aquatic insects to spider diets was determined using a two-source mixing model. Adult aquatic insects made up over 40% of spider diets adjacent to the stream, but

  • Type:

    Article

  • Date:

    14 March 2005

  • Publication Status:

    Published

  • Publisher

    Wiley-Blackwell

  • DOI:

    10.1111/j.0906-7590.2005.04020.x

  • ISSN:

    0906-7590

  • Library of Congress:

    QH301 Biology

  • Dewey Decimal Classification:

    577 Ecology

Citation

Briers, R. A., Cariss, H. M., Geoghegan, R., & Gee, J. H. R. (2005). The lateral extent of the subsidy from an upland stream to riparian lycosid spiders. Ecography, 28(2), 165-170. doi:10.1111/j.0906-7590.2005.04020.x

Authors

Keywords

Ecology, Evolution, behavior and systematics,

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