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ORIBATIDA (ACARI) IN BALSAM FIR [ABIES BALSAMEA (L.)] FORESTS OF WESTERN NEWFOUNDLAND

Published online by Cambridge University Press:  31 May 2012

E. Dwyer ,
D.J. Larson  and
I.D. Thompson
E. Dwyer
Affiliation:
Department of Biology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X9
D.J. Larson*
Affiliation:
Department of Biology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X9
I.D. Thompson
Affiliation:
Canadian Forest Service, PO Box 490, Sault Ste. Marie, Ontario, Canada P6A 5M7
*
1Author to whom correspondence should be addressed.
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Abstract

The oribatid fauna of commercial balsam fir [Abies balsamea (L.)] forests of western Newfoundland were surveyed through Berlese funnel extraction of samples taken from soil and various forest microhabitats. A total of 83 species or species complexes representing 39 families was collected. Fourteen genera and 36 species are new records for Newfoundland. One genus, Haplozetes Willmann, 1935, is a new record for Canada. For each species, notes on abundance in soil samples and distribution among microhabitats are provided and for the more abundant species, seasonal variation in abundance of immature and adult stages is plotted.

Résumé

L’extraction au moyen d’un entonnoir Berlese d’échantillons prélevés dans le sol dans divers microhabitats forestiers a permis de faire l’inventaire des oribates des forêts commerciales de sapins [Abies balsamea (L.)] dans l’ouest de l’île de Terre-Neuve. Au total, 83 espèces ou complexes d’espèces représentant 39 familles ont été récoltés. Quatorze genres et 36 espèces sont des mentions encore inédites à Terre-Neuve. Un genre, Haplozetes Willmann, 1935, n’avait jamais été rencontré au Canada. On trouvera ici des notes sur l’abondance de chaque espèce dans les échantillons de sol et sur sa répartition dans les microhabitats; pour les espèces les plus abondantes, une courbe de la variation saisonnière de l’abondance des larves et des adultes est également présentée.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 129 , Issue 1 , February 1997 , pp. 151 - 170
Copyright
Copyright © Entomological Society of Canada 1997

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