Philoponella republicana (Araneae, Uloboridae) is a communal orb-weaving spider. Colonies of this spider were found more frequently in interface forest than in high forest or mountain savannah forest. This does not appear to be due to differences in insect abundance among forest types, but is correlated with greater complexity of the understory in the interface forest. This may be due to the need for supports for colony attachment lines. Within the interface forest, the location of colonies is correlated with local insect abundance. When flying insects are excluded from colonies, individual spiders can respond by increasing the distance between orbs in the colony, and colonies can respond by abandoning the site and moving to a new location.
This is the published version. Copyright 1985 American Arachnological Society
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