The Warkentin Lab

Karen M. Warkentin, Principal Investigator

Associate Professor
Department of Biology
Boston University
5 Cummington Street
Boston, MA 02215, USA

Phone: (617) 358-2385
FAX: (617) 353-6340
E-mail: kwarken@bu.edu

Faculty website

Research Associate
Smithsonian Tropical Research Institute

Local Mailing Address:
Smithsonian Tropical Research Institute
Apartado Postal 0843-03092
Panamá, República de Panamá

US Mail for Panama:
Smithsonian Tropical Research Institute
Attn: Karen Warkentin, Gamboa Lab
MRC 580-06, Unit 9100, Box 0948
DPO AA 34002-9998, USA

SCIENTIFIC PUBLICATIONS

Touchon, J.C. & K.M. Warkentin. In Press. Negative synergism of rainfall patterns and predators affects frog egg survival. Journal of Animal Ecology

Caldwell, M.S.,   J.G. McDaniel & K.M. Warkentin. 2009. Frequency information in the vibration-cued escape hatching of red-eyed treefrogs. Journal of Experimental Biology 212: 566-575. [link to pdf]

Rogge, J.R. & K.M. Warkentin. 2008. External gills and adaptive embryo behaviour facilitate synchronous development and hatching plasticity under respiratory constraint. Journal of Experimental Biology 211: 3627-3635. [link to pdf]

Warkentin, K.M. & M.S. Caldwell. In Press. Assessing risk: embryos, information, and escape hatching. Invited chapter in R. Dukas & J. Ratcliffe (Eds) Cognitive Ecology II. The Evolutionary Ecology of Learning, Memory, and Information Use. University of Chicago Press.

Touchon, J.C. & K.M. Warkentin. 2008. Reproductive mode   plasticity: aquatic and terrestrial oviposition in a treefrog. Proceedings of the National Academy of Sciences, USA 105: 7495-7499. [doi link] [pdf]

Gomez-Mestre, I., J.C. Touchon, V.L. Saccoccio& K.M. Warkentin. 2008. Genetic variation in pathogen-induced early hatching of toad embryos. Journal of Evolutionary Biology 21: 791-800. [pdf]

Touchon, J.C.& K.M. Warkentin. 2008. Fish and dragonfly nymph predators induce opposite shifts in color and morphology of tadpoles. Oikos 117: 634-640. [pdf]

Gomez-Mestre, I., J.J. Wiens & K.M. Warkentin. 2008. Evolution of adaptive plasticity: risk-sensitive hatching in neotropical leaf-breeding treefrogs (Agalychnis: Hylidae). Ecological Monographs 78: 205-224. [pdf]

Warkentin, K.M. 2007. Oxygen, gills, and embryo behavior: mechanisms of adaptive plasticity in hatching. Comparative Biochemistry and Physiology A, 148: 720-731. [doi link]

Gomez-Mestre, I . & K.M. Warkentin. 2007. To hatch and hatch not: similar selective trade-offs but different responses to egg predators in two closely related, syntopic treefrogs. Oecologia 153: 197-206. [pdf]

Warkentin, K.M., M. S. Caldwell, T.D. Siok, A.T. D'Amato & J.G. McDaniel. 2007. Flexible information sampling in vibrational risk assessment by red-eyed treefrog embryos. Journal of Experimental Biology, 210: 614-619. [link to pdf]

Gomez-Mestre, I ., J.C. Touchon & K.M. Warkentin. 2006. Amphibian embryo and parental defenses and a larval predator reduce egg mortality from water mold. Ecology, 87: 2570-2581. [pdf]

Touchon, J.C., I. Gomez-Mestre & K.M. Warkentin. 2006. Hatching plasticity in two temperate anurans: responses to a pathogen and predation cues. Canadian Journal of Zoology, in 84: 556-563. [pdf]

Warkentin, K.M., M.S. Caldwell & J.G. McDaniel. 2006. Temporal pattern cues in vibrational risk assessment by red-eyed treefrog embryos, Agalychnis callidryas. Journal of Experimental Biology, 209: 1376-1384. [pdf]

Vonesh, J.R. & K.M. Warkentin. 2006. Opposite shifts in size at metamorphosis in response to larval and metamorph predators. Ecology, 87: 556-562. [pdf]

Warkentin, K.M., C.R. Buckley & K.A. Metcalf. 2006. Development of red-eyed treefrog eggs affects efficiency and choices of egg-foraging wasps. Animal Behaviour, 71: 417-425. [pdf]

Warkentin, K.M., I. Gomez-Mestre & J.G. McDaniel. 2005. Development, surface exposure and embryo behavior affect oxygen levels in eggs of the red-eyed treefrog, Agalychnis callidryas. Physiological and Biochemical Zoology. 78: 956-966. [pdf]

Warkentin, K.M. 2005. How do embryos assess risk? Vibrational cues in predator-induced hatching of red-eyed treefrogs. Animal Behaviour 70: 59-71. [pdf]

Warkentin, K.M. 2002. Hatching timing, oxygen availability, and external gill regression in the tree frog, Agalychnis callidryas. Physiological and Biochemical Zoology. 75:155-164. [pdf]

Warkentin, K.M., C.C. Currie & S.A. Rehner. 2001. Egg-killing fungus induces early hatching of red-eyed treefrog eggs. Ecology. 82:2860-2869. [pdf]

Warkentin, K.M. & R.J. Wassersug. 2001. Does prostaglandin regulate external gill loss in anurans? Journal of Experimental Zoology 289: 366-373. [pdf]

Warkentin, K.M. 2000. Environmental and developmental effects on external gill loss in the red-eyed treefrog, Agalychnis callidryas. Physiological and Biochemical Zoology 73: 557-565. [abstract] [pdf]

Warkentin, K.M. 2000. Wasp predation and wasp-induced hatching of red-eyed treefrog eggs. Animal Behaviour 60: 503-510. [abstract] [pdf]

Warkentin, K.M. 1999. Effects of hatching age on development and hatchling morphology in the red-eyed treefrog, Agalychnis callidryas. Biological Journal of the Linnean Society 68: 443-470. [abstract] [pdf]

Warkentin, K.M. 1999. The development of behavioral defenses: a mechanistic analysis of vulnerability in red-eyed tree frog hatchlings. Behavioral Ecology 10: 251-262. [abstract] [pdf]

Warkentin, K.M. 1995. Adaptive plasticity in hatching age: A response to predation risk trade-offs. Proceedings of the National Academy of Sciences 92: 3507-3510. [abstract] [pdf]

Ryan, M.J., K.M. Warkentin, B.E. McClelland & W. Wilczynski. 1995. Fluctuating asymmetries and advertisement call variation in the cricket frog, Acris crepitans. Behavioral Ecology 6 (2):124-131.

Warkentin, K.M. 1992. Microhabitat use and feeding rate variation in green frog tadpoles (Rana clamitans). Copeia 1992 (3):731-740.

Warkentin, K.M. 1992. Effects of temperature and illumination on feeding rates of green frog tadpoles (Rana clamitans). Copeia 1992 (3):725-730.

POPULAR PUBLICATIONS

Warkentin, K. 1997. Life on the leaf. Fauna 1 (2): 8-20.

Schneider, D. & K. Warkentin. 1991. Charming Snakes. Nature Canada 20 (3): 22-29.

Schneider, D. & K. Warkentin. 1988. Giant silk moths: exotic creatures of the night. Canadian Geographic 108 (4): 58-65.

• Warkentin Lab Homepage • Biology Department, Boston University