Change search
ReferencesLink to record
Permanent link

Direct link
Intraspecific Autochthonous and Allochthonous Resource Use by Zooplankton in a Humic Lake during the Transitions between Winter, Summer and Fall
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2015 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 10, no 3, e0120575Article in journal (Refereed) Published
Abstract [en]

Seasonal patterns in assimilation of externally produced, allochthonous, organic matter into aquatic food webs are poorly understood, especially in brown-water lakes. We studied the allochthony (share biomass of terrestrial origin) in cladoceran, calanoid and cyclopoid micro-crustacean zooplankton from late winter to fall during two years in a small humic lake (Sweden). The use of allochthonous resources was important for sustaining a small population of calanoids in the water column during late winter. However, in summer the calanoids shifted to 100% herbivory, increasing their biomass several-fold by making efficient use of the pelagic primary production. In contrast, the cyclopoids and cladocerans remained at high levels of allochthony throughout the seasons, both groups showing the mean allochthony of 0.56 (range in mean 0.17-0.79 and 0.34-0.75, for the respective group, depending on model parameters). Our study shows that terrestrial organic matter can be an important resource for cyclopoids and cladocerans on an annual basis, forming a significant link between terrestrial organic matter and the higher trophic levels of the food web, but it can also be important for sustaining otherwise herbivorous calanoids during periods of low primary production in late winter.

Place, publisher, year, edition, pages
2015. Vol. 10, no 3, e0120575
National Category
Microbiology Ecology
URN: urn:nbn:se:umu:diva-102221DOI: 10.1371/journal.pone.0120575ISI: 000351276300044PubMedID: 25764501OAI: diva2:807139
Available from: 2015-04-22 Created: 2015-04-22 Last updated: 2015-04-22Bibliographically approved

Open Access in DiVA

fulltext(887 kB)65 downloads
File information
File name FULLTEXT01.pdfFile size 887 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Karlsson, Jan
By organisation
Department of Ecology and Environmental Sciences
In the same journal

Search outside of DiVA

GoogleGoogle Scholar
Total: 65 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 150 hits
ReferencesLink to record
Permanent link

Direct link