Impact of resource availability on species composition and diversity in freshwater nematodes

Michiels IC, Traunspurger W (2005)
OECOLOGIA 142(1): 98-103.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
This study investigates the long-term effects of resource availability in a freshwater nematode community. We carried out a mesocosm experiment where natural nematode communities were exposed to nutrient addition/ depletion over 2 years. Compared to the nutrient-addition treatment, species richness and diversity were strongly reduced upon nutrient depletion. The functional group of bacterial feeders particularly suffered severely from nutrient depletion. The decrease in diversity of bacterial feeders was linked to reduced species richness and diversity of large omnivorous species, as predicted by trophic-dynamic models. Tilman's ( 1976) statement, that under low nutrient levels the best competitor dominates the system, was applicable in our system. Upon nutrient depletion, resource depletion led to a monoculture of 1 small bacterial feeder, but even after 2 years of resource depletion, up to 16 species still coexisted. Our results provide strong evidence that freshwater nematode systems can be regulated by nutrient competition.
Stichworte
competitive exclusion; meiobenthos; species; richness; trophic dynamics; functional diversity
Erscheinungsjahr
2005
Zeitschriftentitel
OECOLOGIA
Band
142
Ausgabe
1
Seite(n)
98-103
ISSN
0029-8549
eISSN
1432-1939
Page URI
https://pub.uni-bielefeld.de/record/1605640

Zitieren

Michiels IC, Traunspurger W. Impact of resource availability on species composition and diversity in freshwater nematodes. OECOLOGIA. 2005;142(1):98-103.
Michiels, I. C., & Traunspurger, W. (2005). Impact of resource availability on species composition and diversity in freshwater nematodes. OECOLOGIA, 142(1), 98-103. https://doi.org/10.1007/s00442-004-1700-6
Michiels, IC, and Traunspurger, Walter. 2005. “Impact of resource availability on species composition and diversity in freshwater nematodes”. OECOLOGIA 142 (1): 98-103.
Michiels, I. C., and Traunspurger, W. (2005). Impact of resource availability on species composition and diversity in freshwater nematodes. OECOLOGIA 142, 98-103.
Michiels, I.C., & Traunspurger, W., 2005. Impact of resource availability on species composition and diversity in freshwater nematodes. OECOLOGIA, 142(1), p 98-103.
I.C. Michiels and W. Traunspurger, “Impact of resource availability on species composition and diversity in freshwater nematodes”, OECOLOGIA, vol. 142, 2005, pp. 98-103.
Michiels, I.C., Traunspurger, W.: Impact of resource availability on species composition and diversity in freshwater nematodes. OECOLOGIA. 142, 98-103 (2005).
Michiels, IC, and Traunspurger, Walter. “Impact of resource availability on species composition and diversity in freshwater nematodes”. OECOLOGIA 142.1 (2005): 98-103.

4 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

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Decraemer W, Backeljau T., J Nematol 47(1), 2015
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Höss S, Frank-Fahle B, Lueders T, Traunspurger W., Environ Toxicol Chem 34(11), 2015
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Höss S, Weltje L., Ecotoxicology 16(1), 2007
PMID: 17219088

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