| Autor: |
Fayed SA; School of Botany and Zoology, Australian National University, Canberra, Australian Capital Territory 0200, Australia., Jennions MD, Backwell PR |
| Jazyk: |
angličtina |
| Zdroj: |
Biology letters [Biol Lett] 2008 Apr 23; Vol. 4 (2), pp. 143-5. |
| DOI: |
10.1098/rsbl.2007.0534 |
| Abstrakt: |
In most taxa, owners win fights when defending a territory against intruders. We calculated effect sizes for four factors that potentially contribute to an 'owner advantage'. We studied male fiddler crabs Uca mjoebergi, where owners won 92% of natural fights. Owners were not more successful because they were inherently better fighters (r=0.02). There was a small effect (r=0.18) of the owner's knowledge of territory quality (food availability) and a medium effect (r=0.29) of his having established relations with neighbours (duration of active tenure), but neither was statistically significant. There was, however, a significant effect due to the mechanical advantage the owner gained through access to the burrow during fights (r=0.48, p<0.005). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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