LORCH, P. D.; Univ. of North Carolina, Chapel Hill: Using upper limits on sexual selection to estimate the opportunity for sexual selection and to understand reversals in typical sex-roles The widespread use of molecular markers to estimate parentage make possible a better index of the opportunity for sexual selection. I develop such an index. First, […]

PARKER, P.G.; University of Missouri — St. Louis: Recent Insights into Sexual Selection in Bird Mating Systems: What Bateman Couldn’t Have Known Since tools of molecular genetics became readily available, our understanding of bird mating systems has undergone a revolution. The majority of passerine species investigated are socially monogamous, but have been shown to be […]

WADE, M.J.; SHUSTER, S.M.; Indiana University; Northern Arizona University: Don\’t Throw Bateman Out With the Bathwater! Darwin recognized two patterns in nature and used them to frame the central questions of sexual selection: (1) Why do males and females of the same species differ from one another, with males exhibiting morphological and behavioral phenotypes more […]

LEVITAN, Don/R.; Florida State University: Density-dependent sexual selection and the evolution of sexual dimorphism in external fertilizers The stunning absence of sexual dimorphism in adult morphological traits among broadcast spawning invertebrates was originally thought to be a consequence of reduced or absent sexual selection among these taxa. However, there is no reason why broadcast-spawning animals […]

HAUBER, ME; LACEY, EA; Univ. of California, Berkeley: Bateman�s Principle in Social Mammals: The Influence of Cooperative Breeding on Variance in Female and Male Reproductive Success Sex-specific slopes of Bateman gradient curves have important implications for reproductive behavior, including patterns of sexual selection and reproductive competition among conspecifics. In general, intersexual differences in the fitness […]

DREA, C.M.; Duke University: Bateman revisited: Sexually assertive female primates and their cryptic reproductive tactics The breeding system of an animal population is thought to depend on the ability of one sex (usually the male) to acquire mates, either directly through association or indirectly through defense of resources. According to this view, the sex that […]

BARTELS, Dorothea*; RAMANJULU, Ramtin; M�LLER, Kai; FISCHER, Eberhard; BORSCH, Thomas; University of Bonn: The evolution of desiccation tolerance: genomic aspects The Scrophulariaceae are one of the most diverse paklnt families and has been shown to be polyphyletic. Several Scrophulariaceae which belong to the genera Craterostigma, Lindernia and its allies are poikilohydric and are therefore of […]

POTTS, Malcolm; Virginia Tech, Blacksburg: The Desiccome: Humble Beginnings The loss of water from cells is a stress that was likely imposed very early in evolution. An understanding of the sensitivity or tolerance of cells to depletion of intracellular water is relevant to the study of quiescence, longevity and aging, because one consequence of air-drying […]

WALTERS, C.*; HILL, L.M.; WHEELER, L.M.; USDA-ARS; USDA-ARS; USDA-ARS: Dying while Dry: Kinetics and Mechanisms of Deterioration in Desiccated Organisms Persistence of anhydrous organisms in nature is dependent on how long they remain viable in dry environments. Longevity is determined by interactions of humidity, temperature, and unknown cellular factors that affect the propensity for damaging […]

HOEKSTRA, F.A.; Wageningen University: Differential longevities in desiccated anhydrobiotic plant systems Desiccation tolerance is a wide-spread phenomenon in the plant kingdom, particularly in small propagules lacking an own root or rhizome system, such as seeds, pollen, spores of spore plants, and whole Bryophytes, but rare in whole, vascular plants. However, longevities in the desiccated state […]