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Terrestrial support...
Terrestrial support of lake food webs : Synthesis reveals controls over cross-ecosystem resource use
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- Tanentzap, Andrew J. (författare)
- University of Cambridge
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- Kielstra, Brian W. (författare)
- University of British Columbia
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- Wilkinson, Grace M. (författare)
- University of Virginia
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- Berggren, Martin (författare)
- Lund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science
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- Craig, Nicola (författare)
- McGill University
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- del Giorgio, Paul A. (författare)
- University Of Quebec In Montreal
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- Grey, Jonathan (författare)
- Lancaster University,Wild Trout Trust
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- Gunn, John M. (författare)
- Laurentian University
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- Jones, Stuart E. (författare)
- University of Notre Dame
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- Karlsson, Jan (författare)
- Umeå University,Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Arcum
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- Solomon, Christopher T. (författare)
- McGill University
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- Pace, Michael L. (författare)
- University of Virginia
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(creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2017
- 2017
- Engelska.
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Ingår i: Science Advances. - : American Association for the Advancement of Science (AAAS). - 2375-2548. ; 3:3
- Relaterad länk:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://advances.sci...
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https://portal.resea... (primary) (free)
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http://dx.doi.org/10... (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- Widespread evidence that organic matter exported from terrestrial into aquatic ecosystems supports recipient food webs remains controversial. A pressing question is not only whether high terrestrial support is possible but also what the general conditions are under which it arises. We assemble the largest data set, to date, of the isotopic composition (delta H-2, delta C-13, and delta N-15) of lake zooplankton and the resources at the base of their associated food webs. In total, our data set spans 559 observations across 147 lakes from the boreal to subtropics. By predicting terrestrial resource support from within-lake and catchment-level characteristics, we found that half of all consumer observations that is, the median were composed of at least 42% terrestrially derived material. In general, terrestrial support of zooplankton was greatest in lakes with large physical and hydrological connections to catchments that were rich in aboveground and belowground organic matter. However, some consumers responded less strongly to terrestrial resources where within-lake production was elevated. Our study shows that multiple mechanisms drive widespread cross-ecosystem support of aquatic consumers across Northern Hemisphere lakes and suggests that changes in terrestrial landscapes will influence ecosystem processes well beyond their boundaries.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Tanentzap, Andre ...
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Kielstra, Brian ...
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Wilkinson, Grace ...
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Berggren, Martin
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Craig, Nicola
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del Giorgio, Pau ...
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visa fler...
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Grey, Jonathan
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Gunn, John M.
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Jones, Stuart E.
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Karlsson, Jan
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Solomon, Christo ...
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Pace, Michael L.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Biologi
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och Ekologi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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Science Advances
- Av lärosätet
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Umeå universitet
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Lunds universitet