Residential edges as ecological traps
| Autor: | Adam H. Elzinga, Michael T. Murphy, Amy A. Shipley |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
geography
geography.geographical_feature_category biology Reproductive success Ecology Spotted towhee Context (language use) biology.organism_classification Passerine Residential area Predation Pipilo biology.animal Animal Science and Zoology Ecological trap Ecology Evolution Behavior and Systematics |
| Zdroj: | The Auk. 130:501-511 |
| ISSN: | 1938-4254 0004-8038 |
| DOI: | 10.1525/auk.2013.12139 |
| Popis: | Substantial offspring mortality can occur during the postfledging period of birds, but few postfledging survival studies have been conducted within the context of habitat suitability. We conducted a 2-year radiotelemetry study of Spotted Towhee (Pipilo maculatus) reproductive success and fledgling survival in a 24-ha forested park in a residential area of Lake Oswego, Oregon. In corroboration of previous research on this species, we found (1) that Spotted Towhees nested closer to the edge between the park and residential neighborhoods than expected by chance, and (2) that pairs nesting near edges produced the largest and most offspring. However, fates were reversed during the postfledging period. Thirty-six of 52 fledglings survived the 27-day tracking period, and although fledglings were more likely to be found near edges than in the interior, fledglings near edges had a far higher probability of dying. All deaths were from predation, and at least 11 of 16 predation events were attributable to ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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