WING FEATHER MITE (ACARI, PROCTOPHYLLODIDAE) ABUNDANCE CORRELATES WITH BODY-MASS OF PASSERINE HOSTS - A COMPARATIVE-STUDY

Authors
Citation
L. Rozsa, WING FEATHER MITE (ACARI, PROCTOPHYLLODIDAE) ABUNDANCE CORRELATES WITH BODY-MASS OF PASSERINE HOSTS - A COMPARATIVE-STUDY, Canadian journal of zoology, 75(9), 1997, pp. 1535-1539
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Zoology
Journal title
ISSN journal
0008-4301
Volume
75
Issue
9
Year of publication
1997
Pages
1535 - 1539
Database
ISI
SICI code
0008-4301(1997)75:9<1535:WFM(PA>2.0.ZU;2-U
Abstract
Data from a 4-year study of wing-feather mites on passerines in Portug al (Behnke et al. 1995. Exp. Appl. Acarol. 19: 443-458) were used to i nvestigate whether avian body mass influences the abundance of mites. When 17 host species were used as statistically independent observatio ns, the mite infestation score correlated positively with avian body m ass. This correlation is not a phylogenetic artefact, having been also found when avian phylogeny was controlled for. Three non-exclusive hy potheses might explain this finding: (1) larger birds may provide larg er ''habitat islands,'' enabling more mites to coexist; (2) larger bir ds may provide more topographic refugia for mites to evade host preeni ng; (3) larger birds may provide greater longevity of habitat islands, thus reducing the decimating effects of transmission.