A Meta-Analysis of Competition in Field Experiments
| العنوان: | A Meta-Analysis of Competition in Field Experiments |
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| المؤلفون: | Jessica Gurevitch, Laura L. Morrow, Alison Wallace, Joseph S. Walsh |
| المصدر: | The American Naturalist. 140:539-572 |
| بيانات النشر: | University of Chicago Press, 1992. |
| سنة النشر: | 1992 |
| مصطلحات موضوعية: | Biomass (ecology), Herbivore, Primary producers, Ecology, media_common.quotation_subject, Interspecific competition, Biology, Storage effect, Ecology, Evolution, Behavior and Systematics, Intraspecific competition, Competition (biology), Trophic level, media_common |
| الوصف: | A meta-analysis was conducted on field-competition experiments published in six journals over a 10-yr period. We analyzed the effects of competition on the biomass of organisms belonging to 93 species in a wide variety of habitats. Competition had a large effect overall, with a great deal of heterogeneity in that effect among organisms. There were large differences among trophic levels in competitive effects, but the relative magnitude of competition at different trophic levels was contrary to the predictions of ecological theory. Primary producers and carnivores displayed small to medium effects. In these two groups, interspecific effects did not differ from intraspecific effects, nor did effects differ in terrestrial versus aquatic habitats. The effects of competition on herbivores ranged from large effects on anurans and lotic arthropods, to medium effects on marine mollusks and echinoderms, to effects that were not statistically distinguishable from zero for terrestrial arthropods. Interspecific compe... |
| تدمد: | 1537-5323 0003-0147 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::0a005855b1b511b23fcdabbd9363ee64Test https://doi.org/10.1086/285428Test |
| رقم الانضمام: | edsair.doi...........0a005855b1b511b23fcdabbd9363ee64 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15375323 00030147 |
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