Sexual behavior among parasitic Megarhyssa wasps (Hymenoptera: Ichneumonidae) Owen S. CrankshawRobert W. Matthews OriginalPaper Pages: 1 - 7
Factors influencing the egg laying of workers in a captive Bombus terrestris colony C. G. J. van HonkP. -F. RöselerJ. C. Hoogeveen OriginalPaper Pages: 9 - 14
An analysis of school structure for tadpoles (Anura: Amphibia) Richard J. WassersugAndrew M. LumMichael J. Potel OriginalPaper Pages: 15 - 22
The influence of rice rats Oryzomys palustris on the habitat use of the seaside sparrow Ammospiza maritima William Post OriginalPaper Pages: 35 - 40
Optimal foraging in bumblebees: Why is nectar left behind in flowers? Clayton M. HodgesLarry L. Wolf OriginalPaper Pages: 41 - 44
The reproductive behavior of Anthidium manicatum (Hymenoptera: Megachilidae) and the significance of size for territorial males Lucia Liu SeveringhausBarbara Harris KurtakGeorge C. Eickwort OriginalPaper Pages: 51 - 58
Social hierarchy among siblings in broods of the oystercatcher Haematopus ostralegus Uriel N. Safriel OriginalPaper Pages: 59 - 63
Interspecific interference competition and mate choice in the soldier beetle, Chauliognathus pennsylvanicus D. Kelly McLain OriginalPaper Pages: 65 - 66
Pigeon navigation: Charcoal filter removes relevant information from environmental air Hans G. WallraffAugusto Foà OriginalPaper Pages: 67 - 77
Foaming in Pachycondyla: A new defense mechanism in ants Ulrich MaschwitzKarla JessenEleonore Maschwitz OriginalPaper Pages: 79 - 81