GEOGRAPHICAL ASPECTS OF BIRD-FLOWER COEVOLUTION, WITH PARTICULAR REFERENCE TO CENTRAL AMERICA'

@article{Stiles1981GEOGRAPHICALAO,
  title={GEOGRAPHICAL ASPECTS OF BIRD-FLOWER COEVOLUTION, WITH PARTICULAR REFERENCE TO CENTRAL AMERICA'},
  author={F. Gary Stiles},
  journal={Annals of the Missouri Botanical Garden},
  year={1981},
  volume={68},
  pages={323}
}
  • F. G. Stiles
  • Published 1981
  • Environmental Science
  • Annals of the Missouri Botanical Garden
The overall objective is to compare the ecological impact of bird-flower coevolution in different geographical areas. However, it is first necessary to define the parameters of such coevolution in broader terms than those of the traditional "syndrome of ornithophily," which focuses very narrowly on some aspects of floral morphology. I recognize three distinct components of flower function: attraction, reward, and filtering mechanisms, and discuss their functioning in an ecological context, and… 

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References

SHOWING 1-10 OF 132 REFERENCES

Ecological consequences of a coevolved mutualism between butterflies and plants

  • L. Gilbert
  • Environmental Science
    Coevolution of Animals and Plants
  • 1975
Apimal-plant mutualisms have been extensively described and yet, to dat e, we have no clear understanding of the general ecologi cal and evolutionary importance of such interactions. Ecologi s t s

POLLEN‐OVULE RATIOS: A CONSERVATIVE INDICATOR OF BREEDING SYSTEMS IN FLOWERING PLANTS

  • R. Cruden
  • Environmental Science
    Evolution; international journal of organic evolution
  • 1977
The overall objective is to show that PIO's reflect the likelihood of sufficient pollen grains reaching each stigma to result in maximum seed set and suggest that PI O's are integrated with other facets of a plant's breeding system.

Convergence, Competition, and Mimicry in a Temperate Community of Hummingbird-Pollinated Flowers

This temperate flower community, which resembles some associations of conver- gent Mullerian and Batesian mimics, appears to have evolved its characteristic convergent structure because the advantages of using similar signals and rewards to share the same hummingbird pollinators outweigh the disadvantages of diverging to reduce interspecific competition.

The Energetics of Pollination

There is a mutual interdependence involving a set of evolved "games" where the pollinators try to get the most for their foraging effort, while flowers provide the least reward possible.

Hummingbird Territoriality at a Tropical Flowering Tree

INTERSPECIFIC competition is generally a subtle phenomenon that must often be inferred rather than observed directly. Hummingbirds are unusual among birds in that competition for food is frequently

WHY ARE BIRD‐VISITED FLOWERS PREDOMINANTLY RED?

  • P. Raven
  • Environmental Science
    Evolution; international journal of organic evolution
  • 1972
Recent work suggests that the ability of flower birds to distinguish shades of color in the red-orange area may greatly exceed the authors' own (Gottsberger, 1971).

Ecological and Behavioral Determinants of Pollen Dispersal in Hummingbird- Pollinated Heliconia

  • Y. Linhart
  • Environmental Science
    The American Naturalist
  • 1973
The dispersed forest species of Heliconia were feed upon by nonterritorial birds, whereas the clumped forest-edge species were fed upon primarily by territorial birds, and this interaction may be advantageous to both organisms by lowering the competition for food among birds and the Competition for pollinators among the plants.

SPATIAL RELATIONSHIPS BETWEEN STAMINATE AND PISTILLATE PLANTS OF DIOECIOUS TROPICAL FOREST TREES

  • K. BawaP. Opler
  • Environmental Science
    Evolution; international journal of organic evolution
  • 1977
The objective of the study was to investigate if staminate and pistillate plants of the same species display spatial segregation, if the dispersion pattern indicates asexual reproduction by one or both sexes, and if the distribution of one sex might be more correlated with a particular environmental factor than the other.

The Impact of Seasonal Flowering on the Biology of Some Tropical Hummingbirds

The present study was undertaken to discover two things about the habits of several species of hummingbirds living in such a wet-dry seasonal climate, and to understand the importance of seasonal flowering activity in the evolution of techniques for biological exploitation of the dry lowlands of Middle America, and especially the influence on the territorial systems of the hummingbirds.

The Concept of r- and K-Selection: Evidence from Wild Flowers and Some Theoretical Considerations

The crucial evidence needed for r- and K-selection is whether an organism is allocating a greater proportion of its resources to reproductive activities than another related one (K-strategist) under any and all D.I. mortality conditions.
...