Adams 2016: Territorialität bei Ameisen (Review)
Verfasst: Donnerstag 16. Juni 2016, 14:32Territorialverhalten bei Ameisen ist ein viel diskutiertes Thema. Der jetzt erschienene Review-Artikel befasst sich gründlich mit dem Thema. Dem umfangreichen Literaturverzeichnis sind Arbeiten über das Territorialverhalten zahlreicher Arten zu entnehmen, von Temnothorax nylanderi bis Camponotus gigas. Der Beitrag kann frei herunter geladen werden:
Adams, E.S. (2016): Territoriality in ants (Hymenoptera: Formicidae): a review
Myrmecol. News 23: 101-118; Online Earlier 15 June 2016
https://myrmecologicalnews.org/cms/inde ... format=raw
Abstract: Territory defense by ants is a social process with strong ecological effects. I review the mechanisms by which ants partition space, the behaviors governing individual and colony territorial responses, and the effects of territory defense on populations and communities. Partitioning of space is sometimes accomplished by massive battles, but well defined boundaries are also maintained by less violent means, including avoidance of competitors. Ants flexibly adjust individual and group territorial behavior according to location, scent marks, prior experience, and the local density of nestmates and competitors. An ongoing theoretical challenge is to incorporate these processes into models that accurately predict division of space. Many studies have documented strong effects of territorial interactions on the growth, movement, survival, reproduction, and spacing of competing colonies. Far fewer studies have measured the net effect of territoriality on population dynamics. Fighting can be costly, but there is little evidence that it appreciably reduces worker density or that loss of territoriality promotes the invasiveness of exotic ants. Territorial ants are said to be at the top of competitive hierarchies that structure ant communities. Because much of the evidence is based on correlations, some claims about the community effects of territoriality have met with skepticism. Nonetheless, there is strong evidence from diverse habitats that territory defense produces multi-species mosaics of exclusive foraging areas and that territorial dominants influence the occurrence of some other ant species.
Key words: Aggression, ant mosaic, community structure, dear enemy, invasive ants, Lanchester's square law, review,
spatial pattern, territory.
MfG,
Merkur
Adams, E.S. (2016): Territoriality in ants (Hymenoptera: Formicidae): a review
Myrmecol. News 23: 101-118; Online Earlier 15 June 2016
https://myrmecologicalnews.org/cms/inde ... format=raw
- Territorien von Iridomyrmex purpureus
Abstract: Territory defense by ants is a social process with strong ecological effects. I review the mechanisms by which ants partition space, the behaviors governing individual and colony territorial responses, and the effects of territory defense on populations and communities. Partitioning of space is sometimes accomplished by massive battles, but well defined boundaries are also maintained by less violent means, including avoidance of competitors. Ants flexibly adjust individual and group territorial behavior according to location, scent marks, prior experience, and the local density of nestmates and competitors. An ongoing theoretical challenge is to incorporate these processes into models that accurately predict division of space. Many studies have documented strong effects of territorial interactions on the growth, movement, survival, reproduction, and spacing of competing colonies. Far fewer studies have measured the net effect of territoriality on population dynamics. Fighting can be costly, but there is little evidence that it appreciably reduces worker density or that loss of territoriality promotes the invasiveness of exotic ants. Territorial ants are said to be at the top of competitive hierarchies that structure ant communities. Because much of the evidence is based on correlations, some claims about the community effects of territoriality have met with skepticism. Nonetheless, there is strong evidence from diverse habitats that territory defense produces multi-species mosaics of exclusive foraging areas and that territorial dominants influence the occurrence of some other ant species.
Key words: Aggression, ant mosaic, community structure, dear enemy, invasive ants, Lanchester's square law, review,
spatial pattern, territory.
MfG,
Merkur