Integrated trophic position decreases in more diverse communities of stream food webs.
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ABSTRACT:
SUBMITTER: Ishikawa NF
PROVIDER: S-EPMC5437047 | biostudies-literature | 2017 May
REPOSITORIES: biostudies-literature
Publications
Integrated trophic position decreases in more diverse communities of stream food webs.
Ishikawa Naoto F NF Chikaraishi Yoshito Y Ohkouchi Naohiko N Murakami Aya R AR Tayasu Ichiro I Togashi Hiroyuki H Okano Jun-Ichi JI Sakai Yoichiro Y Iwata Tomoya T Kondoh Michio M Okuda Noboru N
Scientific reports 20170518 1
The relationship between biodiversity and ecosystem functioning is an important theme in environmental sciences. We propose a new index for configuration of the biomass pyramid in an ecosystem, named integrated trophic position (iTP). The iTP is defined as a sum of trophic positions (i.e. the average number of steps involved in biomass transfer) of all the animals in a food web integrated by their individual biomass. The observed iTP for stream macroinvertebrates ranged from 2.39 to 2.79 and was ...[more]
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