Introduction to pollination by animals

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Author:
Anonymous
ID:
270091
Filename:
Introduction to pollination by animals
Updated:
2014-04-10 16:24:41
Tags:
pollination introduction pollinationprocess costs benefits
Folders:
animal and plant interactions
Description:
pollination introduction, pollination process, costs and benefits
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  1. what does the lack of mobility in a plant do to them
    creates an obstacle in the dispersal of their genes
  2. how has this obstacle been alleviated in the majority of all plants
    by the formation of mutualisms
  3. what does the animal most commonly seek in pollination
    a food reward
  4. These mutualisms represent what
    reciprocal exploitation with an underlying evolutionary conflict
  5. selection in mutualisms favours what behaviour
    selfish
  6. what is the optimal situation for the plant in pollination
    one in which it obtains pollination service by a vector w/o providing any reward
  7. a flower visiting animal should exploit available resources as effectively as possible, it is only rarely of any fitness consequence to a visitor whether what happens?
    it transports pollen or not
  8. how have some pollinators and plant spp evolved to exploit this mutualism and have become commensalistic or antagonistic
    • plants- deception, no reward
    • pollinators, dont pollinate, take floral resources
  9. animals that actively seek out flowers increase the probability that what will happen
    the pollen grain collected on one flower will rich the stigma of a conspecific flower
  10. why does this happen
    animals can seek out isolated flowers and pollen may travel father from its source on animal than it would in the wind
  11. for this reason, animal pollinated plant spp can persist at lower what
    population densities
  12. for animal pollinated plant spp, the probability of outcrossing may what
    increase
  13. animal pollinated plants can allocate a lesser proportion of what to pollen production than wind pollinated
    resources
  14. why is this?
    pollen grains have higher probability of reaching and fertilising an ovule of a different plant.
  15. what are costs to the plant that come with animal mediated pollination
    need to produce visual and olfactory cues that attract visitors, production of pollinator rewards such as nectar and additional pollen, and cost imposed by non-pollinators that exploit cues and rewards that attract and maintain pollinators
  16. what are the benefits to the animals of visiting flowers?
    readily accessible high-quality rewards in easily identified discrete patches
  17. what are the costs to the animals
    carriage of pollen is unlikely to impede animal. visitation of flowers carries risk of predation by specialised flower-based predators.

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