Butterfly assemblages along a human disturbance gradient in Ontario, Canada
- 1 May 2004
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Zoology
- Vol. 82 (5), 739-748
- https://doi.org/10.1139/z04-048
Abstract
This study relates patterns of butterfly abundance and species richness to position along an urban disturbance gradient in southeastern Ontario, Canada. Observed assemblages along the gradient (N = 15) included butterflies from the Papilionidae, Pieridae, Lycaenidae, Nymphalidae, and Hesperiidae families. Of the total 26 observed species, 15 were noticeably absent from the disturbed sites. Butterfly assemblages had equal or higher number of individuals and species richness at moderately disturbed sites compared with the least disturbed sites. In relation to distribution patterns along the gradient, 28% of butterfly species were classified as disturbance adaptable and 58% as disturbance avoiders. These classifications were correlated with host-plant use and voltinism. Canonical correspondence analysis of local-scale data strongly associated disturbance avoiders with a specific environmental variable (e.g., Everes comyntas (Godart, 1824) with grasslands), whereas disturbance-adaptable species were weakly associated with any variable. One-time disturbances (i.e., mowing) during the survey resulted in pronounced changes in butterfly abundance and species composition at two sites, reducing species richness and total abundance by up to 80%. Species were patchily distributed along the gradient, suggesting that they respond differentially to disturbance in the landscape.Keywords
This publication has 18 references indexed in Scilit:
- Nectar and hostplant scarcity limit populations of an endangered Oregon butterflyOecologia, 1999
- Butterfly diversity and human land use: Species assemblages along an urban grandientBiological Conservation, 1997
- Biodiversity and community structure of temperate butterfly species within a gradient of human disturbance: An analysis based on the concept of generalist vs. Specialist strategiesPopulation Ecology, 1994
- A review of butterfly conservation in central southern Britain: I. Protection, evaluation and extinction on prime sitesBiological Conservation, 1993
- Sun, Slope, and Butterflies: Topographic Determinants of Habitat Quality for Euphydryas EdithaEcology, 1988
- Urinary excretion of prostanoids by rats and men fed varying amounts of linoleateProgress in Lipid Research, 1986
- Man as a Maker of New Plant CommunitiesJournal of Applied Ecology, 1980
- A method for assessing changes in the abundance of butterfliesBiological Conservation, 1977
- Conservation of Lepidoptera in the United StatesBiological Conservation, 1976
- Weather and the “Regulation” of Subalpine PopulationsEcology, 1972