Resource competition and fire‐regulated nutrient demand in carnivorous plants of wet pine savannas
| Autor: | J. Stephen Brewer |
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| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Applied Vegetation Science. 9:11-16 |
| ISSN: | 1654-109X 1402-2001 |
| DOI: | 10.1111/j.1654-109x.2006.tb00651.x |
| Popis: | Question: What are the mechanisms by which fire reduces competition for both a short-lived and a long-lived species in old-growth ground-cover plant communities of wet pine savannas (originally Pinus palustris, replaced by P. elliottii)? Location: Outer coastal plain of southeastern Mississippi, USA. Methods: I reviewed previous competition experiments and proposed a new hypothesis to explain the relationship between fire, competition, and species co-existence in wet longleaf pine savannas. The first study is about growth and seedling emergence responses of a short-lived carnivorous plant, Drosera capillaris, to reduction in below-ground competition and above- plus below-ground competition. The second study deals with growth and survival responses of a long-lived perennial carnivorous plant, Sarracenia alata, to neighbour removal and prey-exclusion to determine if a reduction in nutrient supply increased the intensity of competition in this nutrient-poor system. Results: Fire increased seedling e... |
| Databáze: | OpenAIRE |
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