Meeting Abstract 101.4 Saturday, Jan. 7 Analyzing continuous character evolution on a phylogeny REVELL, Liam J.; Univ. of Massachusetts Boston liam.revell@umb.edu Recent years have seen the development of likelihood-based phylogenetic methods that allow researchers to test the hypothesis that a discrete character trait (for example, habitat type or trophic level) influences the rate of evolution for a […]
year: 2012
The effects of reproductive state on dietary shifts in Jamaican fruit bats Artibeus jamaicensis
Meeting Abstract 100.2 Saturday, Jan. 7 The effects of reproductive state on dietary shifts in Jamaican fruit bats Artibeus jamaicensis ORR, T.J.*; HAMMOND, K.A.; ORTEGA, J.; Univ. of California, Riverside; Univ. of California, Riverside; Politécnico Nacional, D.F., Mexico teri.orr@email.ucr.edu Bats display an impressive diversity of dietary niches. This variation includes frugivory in many neotropical bats. Fruit however, […]
How do invasive species maintain dominance in nutrient limited environments A comparison of behavioral and physiological mechanisms between an invasive and a native snail
Meeting Abstract 100.3 Saturday, Jan. 7 How do invasive species maintain dominance in nutrient limited environments? A comparison of behavioral and physiological mechanisms between an invasive and a native snail. HANSEN, B. K.*; KRIST, A. C.; MARTINEZ DEL RIO, C.; University of Wyoming; University of Wyoming; University of Wyoming bhanse11@uwyo.edu Resource competition can shape species composition. In […]
Female Tree Swallows modulate fat and lean mass in anticipation of increased foraging costs of chick rearing
Meeting Abstract 100.1 Saturday, Jan. 7 Female Tree Swallows modulate fat and lean mass in anticipation of increased foraging costs of chick rearing BOYLE, W.A.*; WINKLER, D.W.; GUGLIELMO, C.G.; Univ. Western Ontario aboyle7@uwo.ca Birds often lose body mass during nesting. Determining if this mass loss represents an energetic cost of reproduction (energetic stress hypothesis), serves an adaptive […]
Do low energy systems practice state-dependent foraging strategies
Meeting Abstract 100.4 Saturday, Jan. 7 Do low energy systems practice state-dependent foraging strategies? WRIGHT, C.W.*; MOELLER, K.M; DENARDO, D.F.; Arizona State Univ., Tempe; Arizona State Univ., Tempe; Arizona State Univ., Tempe cwright729@hotmail.com Much of the existing literature on the influence of physiological state on foraging decisions (e.g., state-dependent foraging) examines high energy systems (i.e., birds and […]
Can sugar preferences in Australian birds be explained by behaviour or physiology
Meeting Abstract 100.5 Saturday, Jan. 7 Can sugar preferences in Australian birds be explained by behaviour or physiology? NAPIER, K.R.*; XIE, S.; MCWHORTER, T.J.; NICOLSON, S.W.; MARTINEZ DEL RIO, C; FLEMING, P.A.; Murdoch Univ., Western Australia and Univ. of Wyoming, Laramie; Murdoch Univ., Western Australia; Murdoch Univ, Western Australia and Univ. of Adelaide, South Australia; Univ. of […]
The black widow’s hourglass a covert aposematic signal
Meeting Abstract 99.2 Saturday, Jan. 7 The black widow’s hourglass: a covert aposematic signal? BRANDLEY, N. C.*; JOHNSEN, S.; Duke University ncb9@duke.edu While culturally iconic, the hourglass of the American black widows (Latrodectus hesperus, L. mactans, and L. variolus) is scientifically unstudied. The hourglass’ color and orientation suggest that it is an aposematic signal to avian predators. […]
Predation in the strawberry poison frog Oophaga pumilio Are adults and juveniles equally protected from ctenid spiders
Meeting Abstract 99.3 Saturday, Jan. 7 Predation in the strawberry poison frog Oophaga pumilio: Are adults and juveniles equally protected from ctenid spiders? MURRAY, Erin M.*; SAPORITO, Ralph A.; Missouri State University; John Carroll University Erin1989@live.missouristate.edu Many organisms possess defensive mechanisms to protect themselves from predation. Dendrobatid frogs, such as Oophaga pumilio, contain alkaloid chemical defenses and […]
Luminescent responses to predation in the scale worm Harmothoe imbricata
Meeting Abstract 99.1 Saturday, Jan. 7 Luminescent responses to predation in the scale worm Harmothoe imbricata RIVERS, TJ*; PERREAULT, TR; Bowdoin College; Bowdoin College trivers@bowdoin.edu Bioluminescence is a phenomenon that has evolved many different times in many different organisms, especially in marine systems. For all that is known about how many of these species luminesce (physiologically and […]
Does predation by leeches inferred from chemical cues impose any appreciable costs on their snail prey
Meeting Abstract 99.4 Saturday, Jan. 7 Does predation by leeches inferred from chemical cues impose any appreciable costs on their snail prey? WETHINGTON, A R; Chowan University wethia@chowan.edu Physa acuta, a prominent member of freshwater ecosystems, is known to have morphological, life history, and behavioral responses to both fish and crayfish predators. However, less is known about […]
