Competitive Relationships of the Common and Lesser Nighthawks
| Autor: | Donald F. Caccamise |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Sympatry
biology Ecology Ephemeral key media_common.quotation_subject Niche Miller Allopatric speciation biology.organism_classification Competition (biology) Discontinuity (geotechnical engineering) Geography Character displacement Animal Science and Zoology Ecology Evolution Behavior and Systematics media_common |
| Zdroj: | The Condor. 76:1-20 |
| ISSN: | 1938-5129 0010-5422 |
| DOI: | 10.2307/1365980 |
| Popis: | The study of competition and the resulting inferences, of necessity, have been often indirect. This is because the processes of competition, as currently understood, are often quite ephemeral and subtle. On a basis of species interactions, there are three general situations for which competition often has been invoked as an explanation (Miller 1967): (1) the narrowing of a niche in sympatry (Lack 1944); (2) contiguous allopatry in the absence of an environmental discontinuity (Miller 1964); and (3) character displacement (Brown and Wilson 1956; Hutchinson 1957; Mayr 1963). If these situations do indeed develop as a result of competition, then under certain circumstances their maintenance could |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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