Resource partitioning among flower visitors and evolution of nectar concealment in multi-species communities

The plant community within which flower evolution takes place has largely been ignored. We develop two models for the evolution of nectar concealment when flowers are visited by legitimate pollinators and flower parasites. When there is a single plant species, no level of nectar concealment is evolu...

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Published inProceedings of the Royal Society. B, Biological sciences Vol. 272; no. 1559; pp. 187 - 192
Main Authors Rodriguez-Girones, M.A, Santamaria, L
Format Journal Article
LanguageEnglish
Published England The Royal Society 22.01.2005
Subjects
Animals
Bees
Biological Evolution
Community Ecology
Ecological competition
Ecosystem
Evolution
Flowers
Flowers - anatomy & histology
Flowers - genetics
Flowers - physiology
Foraging
Insect pollination
mathematical models
Models, Biological
Nectar
Nectar Concealment
Optimal Foraging
Parasites
plant communities
plant ecology
Plants
Pollen
Pollinating insects
Pollination
pollinators
Reproduction
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Abstract The plant community within which flower evolution takes place has largely been ignored. We develop two models for the evolution of nectar concealment when flowers are visited by legitimate pollinators and flower parasites. When there is a single plant species, no level of nectar concealment is evolutionarily stable: any population can be invaded by mutants exhibiting a higher level of nectar concealment. However, the presence of a second flower species with exposed nectar and not subject to evolution breaks the runaway process. In the presence of open flowers, depending on the fitness function there may be an evolutionarily stable level of nectar concealment, or more complex evolutionary dynamics, with nectar concealment fluctuating within a bounded range. Concealment of nectar from flower parasites can evolve even if it implies decreasing the accessibility of nectar to legitimate pollinators.
AbstractList The plant community within which flower evolution takes place has largely been ignored. We develop two models for the evolution of nectar concealment when flowers are visited by legitimate pollinators and flower parasites. When there is a single plant species, no level of nectar concealment is evolutionarily stable: any population can be invaded by mutants exhibiting a higher level of nectar concealment. However, the presence of a second flower species with exposed nectar and not subject to evolution breaks the runaway process. In the presence of open flowers, depending on the fitness function there may be an evolutionarily stable level of nectar concealment, or more complex evolutionary dynamics, with nectar concealment fluctuating within a bounded range. Concealment of nectar from flower parasites can evolve even if it implies decreasing the accessibility of nectar to legitimate pollinators.
The plant community within which flower evolution takes place has largely been ignored. We develop two models for the evolution of nectar concealment when flowers are visited by legitimate pollinators and flower parasites. When there is a single plant species, no level of nectar concealment is evolutionarily stable: any population can be invaded by mutants exhibiting a higher level of nectar concealment. However, the presence of a second flower species with exposed nectar and not subject to evolution breaks the runaway process. In the presence of open flowers, depending on the fitness function there may be an evolutionarily stable level of nectar concealment, or more complex evolutionary dynamics, with nectar concealment fluctuating within a bounded range. Concealment of nectar from flower parasites can evolve even if it implies decreasing the accessibility of nectar to legitimate pollinators.
The plant community within which flower evolution takes place has largely been ignored. We develop two models for the evolution of nectar concealment when flowers are visited by legitimate pollinators and flower parasites. When there is a single plant species, no level of nectar concealment is evolutionarily stable: any population can be invaded by mutants exhibiting a higher level of nectar concealment. However, the presence of a second flower species with exposed nectar and not subject to evolution breaks the runaway process. In the presence of open flowers, depending on the fitness function there may be an evolutionarily stable level of nectar concealment, or more complex evolutionary dynamics, with nectar concealment fluctuating within a bounded range. Concealment of nectar from flower parasites can evolve even if it implies decreasing the accessibility of nectar to legitimate pollinators.The plant community within which flower evolution takes place has largely been ignored. We develop two models for the evolution of nectar concealment when flowers are visited by legitimate pollinators and flower parasites. When there is a single plant species, no level of nectar concealment is evolutionarily stable: any population can be invaded by mutants exhibiting a higher level of nectar concealment. However, the presence of a second flower species with exposed nectar and not subject to evolution breaks the runaway process. In the presence of open flowers, depending on the fitness function there may be an evolutionarily stable level of nectar concealment, or more complex evolutionary dynamics, with nectar concealment fluctuating within a bounded range. Concealment of nectar from flower parasites can evolve even if it implies decreasing the accessibility of nectar to legitimate pollinators.
Author Rodríguez-Gironés, Miguel A.
Santamaría, Luis
AuthorAffiliation 3 Mediterranean Institute for Advanced Studies CSIC-UIB, Miquel Marquès 21, 07190 Esporles, Mallorca Spain
2 Estación Experimental de Zonas Áridas General Segura 1, 04001 Almeria Spain
1 Institute for Advanced Study Wallotstrasse 19, 14193 Berlin Germany
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Snippet The plant community within which flower evolution takes place has largely been ignored. We develop two models for the evolution of nectar concealment when...
The plant community within which flower evolution takes place has largely been ignored. We develop two models for the evolution of nectar concealment when...
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SubjectTerms Animals
Bees
Biological Evolution
Community Ecology
Ecological competition
Ecosystem
Evolution
Flowers
Flowers - anatomy & histology
Flowers - genetics
Flowers - physiology
Foraging
Insect pollination
mathematical models
Models, Biological
Nectar
Nectar Concealment
Optimal Foraging
Parasites
plant communities
plant ecology
Plants
Pollen
Pollinating insects
Pollination
pollinators
Reproduction
Title Resource partitioning among flower visitors and evolution of nectar concealment in multi-species communities
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