Density- and size-dependent spacing of ant nests: evidence for intraspecific competition.

Autor: Cushman JH; Department of Biological Sciences, Northern Arizona University, 86011, Flagstaff, AZ, USA., Martinsen GD; Department of Biological Sciences, Northern Arizona University, 86011, Flagstaff, AZ, USA., Mazeroll AI; Department of Biological Sciences, Northern Arizona University, 86011, Flagstaff, AZ, USA.
Jazyk: angličtina
Zdroj: Oecologia [Oecologia] 1988 Dec; Vol. 77 (4), pp. 522-525.
DOI: 10.1007/BF00377268
Abstrakt: We present three lines of evidence which each suggest that intraspecific competition has significantly influenced the spacing patterns of Formica altipetens colonies. First, nearest-neighbor analysis of nest spacing patterns detected significant uniformity in six of eight plots. Second, there was a signifcant increase in the distance separating nearest neighbors as ant nest diameters increased. Third, ant nest density predicted substantial variation in the colony dispersion index, indicating the existence of a dispersion continuum at our study site.
Databáze: MEDLINE
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