Show simple item record Cariss, Helen M. Briers, Robert A. Geoghegan, Rory Gee, John H. R. 2008-12-11T11:43:25Z 2008-12-11T11:43:25Z 2008-12-11
dc.identifier.citation Cariss , H M , Briers , R A , Geoghegan , R & Gee , J H R 2008 , ' Inter-population dispersal by adult stoneflies detected by stable isotope enrichment ' RAE2008 , pp. 425-431 . en
dc.identifier.other PURE: 100293
dc.identifier.other dspace: 2160/1526
dc.identifier.uri en
dc.description Robert A. Briers, John H. R. Gee, Helen M. Cariss and Rory Geoghegan. (2004). Inter-population dispersal by adult stoneflies detected by stable isotope enrichment. Freshwater Biology 49(4) pp.425-431 en
dc.description.abstract 1. Dispersal of adult stream insects may be of considerable importance in regional population dynamics and colonisation of new sites, but quantifying the rate and extent of dispersal is difficult. 2. We used stable isotope (15N) enrichment to mark more than 1.5 million larval stoneflies (Leuctra inermis) before they emerged from an upland stream in the Plynlimon area of mid-Wales, in order to determine directly the rate and pattern of inter-site dispersal. 3. A small number of isotopically enriched adult stoneflies were captured in samples taken at adjacent streams between 800 m and 1.1 km away from the source population, including a headwater of a different river system. 4. The distribution of marked individuals suggested that wind influences dispersal direction in the uplands, but the low number of captures limits our ability to draw firm conclusions. 5. This is the first direct demonstration of dispersal of insects between streams. The dispersal distances recorded were significantly greater than those suggested by previous direct studies, but much more consistent with indirect studies based on genetic differentiation of populations. en
dc.format.extent 7 en
dc.language.iso eng
dc.relation.ispartof RAE2008 en
dc.title Inter-population dispersal by adult stoneflies detected by stable isotope enrichment en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en

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