Determinants of male spacing behavior in microtines: an experimental manipulation of female spatial distribution and density Johan Nelson OriginalPaper Pages: 217 - 223
Increased energy expenditure due to increased territorial defense in male lizards after phenotypic manipulation Catherine A. MarlerGlenn WalsbergC. A. Marler OriginalPaper Pages: 225 - 231
Effects of foundress number on brood raids and queen survival in the fire ant Solenopsis invicta Eldridge S. AdamsWalter R. Tschinkel OriginalPaper Pages: 233 - 242
Chick recognition and acceptance: a weakness in magpies exploited by the parasitic great spotted cuckoo Manuel SolerJuan Gabriel MartinezAnders Pape Møller OriginalPaper Pages: 243 - 248
Singing performance, frequency matching and courtship success of long-tailed manakins (Chiroxiphia linearis) Jill M. TrainerDavid B. McDonald OriginalPaper Pages: 249 - 254
Caste allocation in litter Pheidole: lessons from plant defense theory Michael KaspariMargaret M. Byrne OriginalPaper Pages: 255 - 263
The function of hatching asynchrony in the blue-footed booby Jose Luis OsornoHugh Drummond OriginalPaper Pages: 265 - 273
Female yellowhammers (Emberiza citrinella) prefer yellower males: a laboratory experiment Jan Sundberg OriginalPaper Pages: 275 - 282
Black Grouse leks on ice: Female mate sampling by incitation of male competition? Matti HoviRauno V. AlataloPirkko Siikamäki OriginalPaper Pages: 283 - 288
