Space Partitioning Without Territoriality in Gannets

作者：Wakefield, Ewan D.^*; Bodey, Thomas W.; Bearhop, Stuart; Blackburn, Jez; Colhoun, Kendrew; Davies, Rachel; Dwyer, Ross G.; Green, Jonathan A.; Gremillet, David; Jackson, Andrew L.; Jessopp, Mark J.; Kane, Adam; Langston, Rowena H. W.; Lescroel, Amelie; Murray, Stuart; Le Nuz, Melanie; Patrick, Samantha C.; Peron, Clara; Soanes, Louise M.; Wanless, Sarah; Votier, Stephen C.; Hamer, Keith C.

来源：Science, 2013, 341(6141): 68-70.

DOI：10.1126/science.1236077

• INTRA-SPECIFIC COMPETITION
• FORAGING AREAS
• PUBLIC INFORMATION
• GPS TRACKING
• SEABIRDS
• BEHAVIOR
• FOOD
• COLONIES
• NEIGHBORS
• EVOLUTION

Colonial breeding is widespread among animals. Some, such as eusocial insects, may use agonistic behavior to partition available foraging habitat into mutually exclusive territories; others, such as breeding seabirds, do not. We found that northern gannets, satellite-tracked from 12 neighboring colonies, nonetheless forage in largely mutually exclusive areas and that these colony-specific home ranges are determined by density-dependent competition. This segregation may be enhanced by individual-level public information transfer, leading to cultural evolution and divergence among colonies.

• 出版日期2013-7-5