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Descriptions of the Nests of Pseudochartergus Fuscatus and Stelopolybia Testacea, with a Note on a Parasite of S. Testacea (Hymenoptera, Vespidae)

International Journal of BY ROBERT L. JEANNE 0 0 The Biological Laboratories, Harvard University Cambridge , Mass The nest built by a colony of wasps is the tangible product of complex behavior

Descriptions of the Nests of Pseudochartergus Fuscatus and Stelopolybia Testacea, with a Note on a Parasite of S. Testacea (Hymenoptera, Vespidae)

International Journal of BY ROBERT L. JEANNE 0 0 The Biological Laboratories, Harvard University Cambridge , Mass The nest built by a colony of wasps is the tangible product of complex behavior

Polymorphism in Stelopolybia Areata (Hymenoptera, Vespidae)

International Journal of BY ROBERT L. JEANNE AND ROBERT FAGEN 0 1Department of Biology, Boston University , Boston , Massachusetts 02215. Aiken Computation Laboratory, Harvard University , Cambridge

Morphology of the Sternal Glands of Polistes Fuscatus and P. Canadensis (Hymenoptera: Vespidae)

Although 13 exocrine glands have been located in wasps of the genus Polistes, and 12 in Mischocyttarus (Landolt and Akre, 1979), their morphology and functions have been little studied. Recently, however, the sternal gland on the sixth gastral (terminal) segment of females of these wasps has attracted attention because its secretion is repugnant to some species of ants. Female...

Morphology of the Sternal Glands of Polistes Fuscatus and P. Canadensis (Hymenoptera: Vespidae)

Although 13 exocrine glands have been located in wasps of the genus Polistes, and 12 in Mischocyttarus (Landolt and Akre, 1979), their morphology and functions have been little studied. Recently, however, the sternal gland on the sixth gastral (terminal) segment of females of these wasps has attracted attention because its secretion is repugnant to some species of ants. Female...

Prairie Ant Colony Longevity and Mound Growth

International Journal of PRAIRIE ANT COLONY LONGEVITY AND MOUND GROWTH BY GREGG HENDERSON 0 RUSSEL O. WAGNER 1 ROBERT L. JEANNE 0 Department of Entomology, University of Wisconsin-Madison , Madison

Predation on Cercopids and Material Use of the Spittle in Aphid-Tent Construction by Prairie ANTS

International Journal of PREDATION ON CERCOPIDS AND MATERIAL USE OF THE SPITTLE IN APHID-TENT CONSTRUCTION BY PRAIRIE ANTS* BY GREGG HENDERSON 0 GEORGE D. HOFFMAN 0 ROBERT L. JEANNE 0 0 Department

Prairie Ant Colony Longevity and Mound Growth

International Journal of PRAIRIE ANT COLONY LONGEVITY AND MOUND GROWTH BY GREGG HENDERSON 0 RUSSEL O. WAGNER 1 ROBERT L. JEANNE 0 Department of Entomology, University of Wisconsin-Madison , Madison

Recruitment in Swarm-Founding Wasps: Polybia occidentalis Does not Actively Scent-Mark Carbohydrate Food Sources

Scent marking food resources is expected to enhance foraging efficiency reducing search time. Many social bees exhibit this behavior, but scent-marking is absent in social wasps, except for Vespa mandarinia. We tested for scent marking in the swarm-founding wasp, Polybia occidentalis. This wasp has moderately large colonies and utilizes resources that are concentrated in time and...

Recruitment in Swarm-Founding Wasps: Polybia occidentalis Does not Actively Scent-Mark Carbohydrate Food Sources

Scent marking food resources is expected to enhance foraging efficiency reducing search time. Many social bees exhibit this behavior, but scent-marking is absent in social wasps, except for Vespa mandarinia. We tested for scent marking in the swarm-founding wasp, Polybia occidentalis. This wasp has moderately large colonies and utilizes resources that are concentrated in time and...

Recruitment in Swarm-Founding Wasps: Polybia occidentalis Does not Actively Scent-Mark Carbohydrate Food Sources

Scent marking food resources is expected to enhance foraging efficiency reducing search time. Many social bees exhibit this behavior, but scent-marking is absent in social wasps, except for Vespa mandarinia. We tested for scent marking in the swarm-founding wasp, Polybia occidentalis. This wasp has moderately large colonies and utilizes resources that are concentrated in time and...

Interactive Evolution Modules Promote Conceptual Change

We developed a suite of online modules (http://ats.doit.wisc.edu/biology/) to improve student understanding of challenging concepts in our introductory biology course at the University of Wisconsin-Madison. Here we assess the effectiveness of two of the modules, Species and Speciation and Natural Selection. In Year 1, unannounced pre-tests and post-tests were used to assess...

Productivity in a social wasp: per capita output increases with swarm size

We measured the productivity of newly-founded colonies of Polybia ocddentalis, a Neotropical swarm-founding social wasp, over their first 25 days. By both of the measures we used, number of nest cells built by the swarm and dry weight of brood produced, colony-level productivity was a significant positive quadratic function of the number of adults in the swarm, indicating that...