期刊
INSECTES SOCIAUX
卷 59, 期 4, 页码 541-548出版社
SPRINGER BASEL AG
DOI: 10.1007/s00040-012-0249-3
关键词
Nest size; Association; Cohabitation; Inquilinitermes; Staphylinidae
类别
资金
- National Council of Technological and Scientific Development (CNPq)
- Minas Gerais State Agency for Research Support (FAPEMIG) [APQ-01519-11, BPV 00055-11]
- Coordination for the Improvement of High Education Personnel (CAPES)
- CNPq [PQ 302486/2010-0, PDE 200271/2010-5]
A range of organisms can be found inside termite nests where the degree of association can vary from facultative to obligatory dependence. Studies of the dynamics of nest invasion are still unresolved, so how and when cohabitants enter termite nests remain open questions. This study analyzed one specific aspect of the dynamics of termite nest invasion by obligatory termitophiles and inquilines, i.e., whether cohabitants were more likely to invade a nest when it reached a critical nest size. We collected 36 Constrictotermes cyphergaster nests of different sizes and sampled their cohabitant fauna. Our results indicated that the invasion of C. cyphergaster nests by obligatory termitophiles and inquilines was dependent on nest size. There appeared to be a critical nest size above which nests were more prone to invasion. Above this size, there was a significantly higher likelihood of finding obligatory cohabitants. Termitophile species were observed in nests a parts per thousand yen2.2 L, whereas inquiline species were only occur in nests a parts per thousand yen13.6 L. This may indicate that the obligatory cohabitants studied here did not occupy C. cyphergaster nests at random and that they were dependent on features that made these nests suitable for cohabitation, which are linked to colony development.
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