VAN VALKENBURGH, B; SACCO, T; WANG, X; Univ. of California, Los Angeles; Univ. of California, Los Angeles; Natural History Museum of Los Angeles County: Recognizing Pack Hunters in the Fossil Record: Evidence from Craniodental Morphology and Body Size The Borophaginae is the largest of the three subfamilies of the dog family Canidae, including some 66 […]
sessions: Session 33
Herbivory imposes constraints on the life-history strategies of reptiles
ESPINOZA, R.E.*; DEAN-BRADLEY, K.; TRACY, C.R.; California State Univ., Northridge; US Geological Survey, Ft. Collins, CO; Univ. Nevada, Reno: Herbivory imposes constraints on the life-history strategies of reptiles. Extracting energy from plants is thought to be most challenging for small herbivores, especially neonates, because of their high energy needs and small guts. Herbivores could provide […]
Control of jaw movements in the hairy-nosed wombat
CROMPTON, A.W.; LIEBERMAN, D.E.; OWERKOWICZ, T.; Harvard Univ., Cambridge, MA; Harvard Univ., Cambridge, MA; Harvard Univ., Cambridge, MA: Control of jaw movements in the hairy-nosed wombat Strain of the ventral surface of the mandibular symphysis and ramus was recorded synchronously with EMG’s from the principal jaw adductors in three hairy-nosed wombats (Lasiorhinus latifrons). EMG’s were […]
Habitat Use By the Eastern Hognose Snake, Heterodon platirhinos, at Multiple Spatial Scales
MCDONALD, Elizabeth A.; University of Tennessee, Knoxville: Habitat Use By the Eastern Hognose Snake, Heterodon platirhinos, at Multiple Spatial Scales Eastern hognose snakes were collected in northern Michigan and surgically implanted with temperature-sensitive radio transmitters before release. The snakes were relocated approximately every two days between May 2001 and October 2002. A set of 38 […]
Field investigation of the ecology of the Gila monster in Nevada
GIENGER, C.M.; TRACY, C. Richard; University of Nevada-Reno: Field investigation of the ecology of the Gila monster in Nevada The Gila monster ( Heloderma suspectum ) was studied in southern Nevada over three seasons using radio-telemetry. Activity, thermal biology, refuge selection, hibernation, and spatial habitat use were quantified. Gila monsters were most active in late […]
Effects of Geographic Distance and Dispersal Barriers on Amphibian Polymorphism
MARTIN, A. L.; University of Missouri, Rolla: Effects of Geographic Distance and Dispersal Barriers on Amphibian Polymorphism Understanding the natural history of a species is critical to developing sound management practices. This is especially true for indicator species such as amphibians that play a large role in our understanding of an ecosystem’s general health. While […]
Determinants of fighting ability in the lizard Gallotia galloti
HUYGHE, K; SCHEERS, H; VAN DAMME, R; Univ. of Antwerp, Belgium; Univ. of Antwerp, Belgium; Univ. of Antwerp, Belgium: Determinants of fighting ability in the lizard Gallotia galloti Gallotia galloti is a large lacertid lizard, endemic to the island of Tenerife (Canary Islands, Spain). In the field, large males maintain territories and exhibit strong aggression […]
Comparing habitat use, morphology, and performance in two divergent Anolis lizard populations
IRSCHICK, D. J.; CARLISLE, E.; ELSTROTT, J.; RAMOS, M.; BUCKLEY, C.; VANHOOYDONCK, B.; MEYERS, J.; HERREL, A.; Tulane University; Tulane University; Tulane University; Tulane University; Tulane University; University of Antwertp; Northern Arizona University; University of Antwertp: Comparing habitat use, morphology, and performance in two divergent Anolis lizard populations We compared external morphology, habitat use, and […]
Behavioral mechanisms underlying competitive displacment in a gecko community
WILMHOFF, C.D.*; PETREN, K.; Univ. of Cincinnati; Univ. of Cincinnati: Behavioral mechanisms underlying competitive displacment in a gecko community Understanding the factors governing the distribution and abundance of organisms is a central goal of ecology. There is a wealth of information indicating that competition is an important factor in shaping distribution and abundance, but few […]
With or without youThe role of mesoderm in ectoderm segmentation in crustaceans
PRICE, A.L.; PATEL, N.H.; University of Chicago, Illinois; Univ. of California, Berkeley: With or without you…The role of mesoderm in ectoderm segmentation in crustaceans The segmental characteristics of the ectoderm and mesoderm as well as the proximity of the germ layers during morphogenesis suggests that signaling may be required between these two layers for proper […]