Community Ecology
Volume/Issue:
Volume 1: Issue 2
Is the role of trophic control larger in a stressed ecosystem?
Authors:
F. Jordán Department of Genetics, Eötvös University Múzeum krt. 4/a, H-1088, Budapest, Hungary

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F. Jordán Department of Genetics, Eötvös University Múzeum krt. 4/a, H-1088, Budapest, Hungary

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Pages:
139–146
Online Publication Date:
26 Jan 2006
Publication Date:
01 Jan 2001
Article Category:
Journal Article
DOI:
https://doi.org/10.1556/comec.1.2000.2.3
Keywords:
Keystone species; Keystone species; Keystone species; Community control; Crystal River; Ecosystem stress; Trophic flow network
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Macroscopic ecosystem studies often complete our knowledge based on population-level experiments and models. In this paper, the changed control of ecosystem functioning is reported by analyzing the structure of the energy flow network of a tidal marsh community (Crystal River, Florida). The positional importance of trophic components is characterized by a graph theoretical approach. Then, positional importance of points is compared to the magnitude of fitting carbon flows (i.e., the importance of links) and the congruency is expressed in percents. These results are presented for both an unperturbed (control) and a thermally stressed creek ecosystem of the river. The comparison of average congruency values for the two communities suggests that, first, trophic control may be stronger in the stressed community and, second, the reliability of carbon flows is also higher in the stressed ecosystem.

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Cover Community Ecology
Community Ecology An Interdisciplinary Journal Reporting Progress in Community and Population Studies
Print ISSN:
1585-8553
Online ISSN:
1588-2756

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Community Ecology
Language English
Size A4
Year of
Foundation		 2000
Volumes
per Year		 1
Issues
per Year		 3
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1585-8553 (Print)
ISSN 1588-2756 (Online)

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