Web Height as a Niche Separator in Two Antillean Orb-weaving Spiders

Christopher K. Starr, Jo-Anne Nina Sewlal


Choice of foraging site is a critical decision for any sit-and-wait predator. For web-building spiders, which must invest heavily in spinning a web, this decision may be a semi-permanent one. Accordingly, we expect a given species to have fairly characteristic web and website features. In a comparison of several web parameters in nine orb-weaving species in Ghana, including one Gasteracantha sp. and one Leucauge sp., Edmunds and Edmunds (2001) found that each species-pair could be separated according to at least one parameter. Our purpose here is to consider just one parameter, height above the ground.

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