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Ballooning Spiders in Missouri, USA, and New South Wales, Australia: Family and Mass Distributions
Matthew H. Greenstone, Clyde E. Morgan, Anne-Lise Hultsch, Roger A. Farrow and J. E. Dowse
The Journal of Arachnology
Vol. 15, No. 2 (Summer, 1987), pp. 163-170
Published by: American Arachnological Society
Stable URL: http://www.jstor.org/stable/3705725
Page Count: 8
You can always find the topics here!Topics: Spiders, Ballooning, Animal traps, Insect pests, Arthropods, Biological taxonomies, Animal migration behavior, Wildlife habitats, Fauna, Ethanol
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Ballooning spiders were captured during a full growing season over agricultural habitats in Missouri, USA, and one week in New South Wales, Australia, using sticky traps in Missouri and tow nets in Australia. More than 2,000 spiders in Missouri and more than 800 spiders in Australia were identified to family and estimates made of their live masses. Both aeronaut faunas are dominated by the family Linyphiidae, with the remaining families making up different proportions at the two sites. The vast majority of aeronauts weighed between 0.2 and 1.0 mg, with the mass-frequency distributions at both sites tailing off rapidly beyond 2.0 mg. The most massive Missouri aeronaut weighed 25.5 mg, and the most massive Australian aeronaut 19.1 mg. These are the first published extensive data on the live masses of ballooning spiders from the field and this is the first taxonomic analysis of a Southern Hemisphere aeronaut fauna.
The Journal of Arachnology © 1987 American Arachnological Society