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dc.contributor.authorWissinger, Scott A.
dc.contributor.authorBrown, Wendy S.
dc.contributor.authorJannot, Jason E.
dc.date.accessioned2018-02-06T18:41:30Z
dc.date.available2018-02-06T18:41:30Z
dc.date.issued2003-01-17
dc.identifier.citationWissinger, S.A., Brown, W.S. and Jannot, J.E. (2003). Caddisfly life histories along permanence gradients in high-altitude wetlands in Colorado (U.S.A.). Freshwater Biology 48(2): 255–270. doi:10.1046/j.1365-2427.2003.00997.xen_US
dc.identifier.issn0046-5070
dc.identifier.issne1365-2427
dc.identifier.urihttp://hdl.handle.net/10456/45616
dc.description.abstract1. Larvae of cased caddisflies (Limnephilidae and Phryganeidae) are among the most abundant and conspicuous invertebrates in northern wetlands. Although species replacements are often observed along permanence gradients, the underlying causal mechanisms are poorly understood. In this paper, we report on the distributional patterns of caddisflies in permanent and temporary high-altitude ponds, and how those patterns reflect differences in life history characteristics that affect desiccation tolerance (fundamental niches) versus constraints related to biotic interactions (realised niches). 2. Species (Hesperophylax occidentalis and Agrypnia deflata) that were encountered only in permanent ponds are restricted in distribution by life history (no ovarian diapause, aquatic oviposition, and/or inability to tolerate desiccation). Although the egg masses of H. occidentalis tolerate desiccation, the larvae leave the protective gelatinous matrix of the egg mass because adults oviposit in water. 3. Three species (Asynarchus nigriculus, Limnephilus externus and L. picturatus) have life history characteristics (rapid larval growth, ovarian diapause and terrestrial oviposition of desiccation-tolerant eggs) that should facilitate the use of both permanent and temporary habitats. However, A. nigriculus is rare or absent in most permanent ponds, and L. externus and L. picturatus are rare or absent in most temporary ponds. Experimental data from a previous study on the combined effects of salamander predation and interspecific interactions among caddisflies (e.g. intraguild predation) suggest that biotic interactions limit each species to a subset of potentially exploitable habitats. 4. Many wetland invertebrates exhibit species replacements along permanence gradients, but few studies have separated the relative importance of the effects of drying per se from the effects of biotic interactions. Our results emphasise the complementary roles of comparative data on life histories and experimental data on competition and predation for understanding invertebrate distributions along permanence gradients.en_US
dc.language.isoen_USen_US
dc.publisherWiley-Blackwellen_US
dc.relation.ispartofFreshwater Biologyen_US
dc.relation.isversionofhttps://doi.org/10.1046/j.1365-2427.2003.00997.xen_US
dc.rightsThis article was selected and published in Freshwater Biology © 2003 Wissinger, Brown, and Jannot. All rights reserved.en_US
dc.subjectCaddisfliesen_US
dc.subjectlife historyen_US
dc.subjectnicheen_US
dc.subjectpermanence gradienten_US
dc.subjectwetlandsen_US
dc.titleCaddisfly life histories along permanence gradients in high-altitude wetlands in Colorado (U.S.A.)en_US
dc.description.versionFinal manuscript post peer review, without publisher's formatting or copy editing (postprint)en_US
dc.contributor.departmentBiologyen_US
dc.citation.volume48en_US
dc.citation.issue2en_US
dc.citation.spage255en_US
dc.citation.epage270en_US
dc.identifier.doi10.1046/j.1365-2427.2003.00997.x
dc.contributor.avlauthorWissinger, Scott A.


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