Herbivory, plant regeneration, and species coexistence
Article Abstract:
Herbivores influence plant species diversity through their role on plant regeneration. They directly influence vegetation by consuming plant tissues, and indirectly, by their nutrient cycling and soil disturbance activities. Furthermore, the different effects of selective seed and seedling predators help in the coexistence of many plant species within the same habitat. However, plant species diversity is caused by various ecological and evolutionary processes rather than by herbivores alone.
Publication Name: The Journal of Ecology
Subject: Environmental issues
ISSN: 0022-0477
Year: 1996
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Reconciling ecological processes with phylogenetic patterns: the apparent paradox of plant-pollinator systems
Article Abstract:
The hybridization of flowers is the result of the extinction of the specialized pollinators. Flowering plants have selected pollinators, which means that although there may be a wide range of pollinators, the success of each species is by unequal degrees. The most successful pollinators are then the selected ones. When these become extinct, either globally or locally, other pollinators take over. Further studies using multi-disciplinary approach should be made for alternative possibilities.
Publication Name: The Journal of Ecology
Subject: Environmental issues
ISSN: 0022-0477
Year: 1996
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The humped-back model: a response to Oksanen
Article Abstract:
Oksanen (1996) proposed that Grime's (1973) humped-backed model of species diversity seen along gradients of increasing plant biomass in herbaceous vegetation is the result of his reliance on small samples of constant size. Oksanen introduced a 'no-interaction model' attributing the decrease in diversity at high biomass to the increase in plant size. The technical shortcomings of this model are discussed, and the principles behind it are challenged.
Publication Name: The Journal of Ecology
Subject: Environmental issues
ISSN: 0022-0477
Year: 1997
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