Search Results - "Gerhardt, H. Carl"

Trade-Offs and Upper Limits to Signal Performance during Close-Range Vocal Competition in Gray Tree Frogs Hyla versicolor by Reichert, Michael S., Gerhardt, H. Carl

“…Performance limitations on signal production constrain signal evolution. Variation in signaling performance may be related to signaler quality and therefore is…”
Get full text

Gray tree frogs, Hyla versicolor, give lower-frequency aggressive calls in more escalated contests by Reichert, Michael S., Gerhardt, H. Carl

“…As animal contests escalate, variation in the performance of aggressive signaling behaviors can give important insights into contest dynamics. In anuran…”
Get full text

Predation reduces visual communication distance in an Anolis lizard by Gerhardt, H. Carl

Get full text

REPRODUCTIVE CHARACTER DISPLACEMENT IN THE ACOUSTIC COMMUNICATION SYSTEM OF GREEN TREE FROGS (HYLA CINEREA) by Höbel, Gerlinde, Carl Gerhardt, H

“…Interactions between species can affect the evolution of their sexual signals, receiver selectivity, or both. One commonly expected outcome is reproductive…”
Get full text

AFLP markers resolve intra-specific relationships and infer genetic structure among lineages of the canyon treefrog, Hyla arenicolor by Klymus, Katy E., Carl Gerhardt, H.

“…[Display omitted] ► We use AFLP data to resolve intra-specific relationships in the canyon treefrog. ► Placement of a divergent Balsas Lineage is congruent…”
Get full text

Polyploids with Different Origins and Ancestors Form a Single Sexual Polyploid Species by Holloway, Alisha K., Cannatella, David C., Gerhardt, H. Carl, Hillis, David M.

“…Polyploidization is one of the few mechanisms that can produce instantaneous speciation. Multiple origins of tetraploid lineages from the same two diploid…”
Get full text

Advertisement-call modification, male competition, and female preference in the bird-voiced treefrog Hyla avivoca by Martínez-Rivera, Carlos César, Gerhardt, H. Carl

“…Senders and receivers influence dynamic characteristics of the signals used for mate attraction over different time scales. On a moment-to-moment basis,…”
Get full text

Call Duration as an Indicator of Genetic Quality in Male Gray Tree Frogs by Welch, Allison M., Semlitsch, Raymond D., Gerhardt, H. Carl

“…The "good genes" hypothesis predicts that mating preferences enable females to select mates of superior genetic quality. The genetic consequences of the…”
Get full text

Evolution of advertisement signals in North American hylid frogs: vocalizations as end-products of calling behavior by Robillard, Tony, Höbel, Gerlinde, Carl Gerhardt, H.

“…We studied the advertisement signals in two clades of North American hylid frogs in order to characterize the relationships between signal acoustic structure…”
Get full text

Female preference functions based on call duration in the gray tree frog (Hyla versicolor) by Gerhardt, H. Carl, Tanner, Steven D., Corrigan, Candice M., Walton, Hilary C.

“…Preference functions, which quantify preference strength relative to variation in male traits or signals, are central to understanding mechanisms and…”
Get full text

Temporal order and the evolution of complex acoustic signals by Gerhardt, H. Carl, Humfeld, Sarah C, Marshall, Vincent T

“…Hyla versicolor…”
Get full text

Individual voice recognition in a territorial frog (Rana catesbeiana) by Bee, Mark A., Gerhardt, H. Carl

“…Rana catesbeiana…”
Get full text

Neuroethology of sound localization in anurans by Gerhardt, H. Carl, Bee, Mark A., Christensen-Dalsgaard, Jakob

“…Albert Feng pioneered the study of neuroethology of sound localization in anurans by combining behavioral experiments on phonotaxis with detailed…”
Get full text

Experimental Analysis of Multivariate Female Choice in Gray Treefrogs (Hyla versicolor): Evidence for Directional and Stabilizing Selection by Gerhardt, H. Carl, Brooks, Robert

“…Even simple biological signals vary in several measurable dimensions. Understanding their evolution requires, therefore, a multivariate understanding of…”
Get full text

Anuran Vocal Communication: Effects of Genome Size, Cell Number and Cell Size by Gerhardt, H Carl, Tucker, Mitch A, von Twickel, Arndt, Walkowiak, Wolfgang

“…Significant variation in genome size occurs among anuran amphibians and can affect cell size and number. In the gray treefrog complex in North America,…”
Get more information

Biogeography and the evolution of acoustic communication in the polyploid North American grey treefrog complex by Booker, William W., Lemmon, Emily Moriarty, Lemmon, Alan R., Ptacek, Margaret B., Hassinger, Alyssa T. B., Schul, Johannes, Gerhardt, H. Carl

“…After polyploid species are formed, interactions between diploid and polyploid lineages may generate additional diversity in novel cytotypes and phenotypes. In…”
Get full text

REPRODUCTIVE CHARACTER DISPLACEMENT IN THE ACOUSTIC COMMUNICATION SYSTEM OF GREEN TREE FROGS (HYLA CINEREA) by Höbel, Gerlinde, Gerhardt, H. Carl

“…Interactions between species can affect the evolution of their sexual signals, receiver selectivity, or both. One commonly expected outcome is reproductive…”
Get full text

The Complex History of Genome Duplication and Hybridization in North American Gray Treefrogs by Booker, William W, Gerhardt, H Carl, Lemmon, Alan R, Ptacek, Margaret B, Hassinger, Alyssa T B, Schul, Johannes, Lemmon, Emily Moriarty

“…Abstract Polyploid speciation has played an important role in evolutionary history across the tree of life, yet there remain large gaps in our understanding of…”
Get full text

Individual Variation in Advertisement Calls of Territorial Male Green Frogs, Rana clamitans: Implications for Individual Discrimination by Bee, Mark A., Kozich, Carol E., Blackwell, Kellee J., Gerhardt, H. Carl

“…Individuals of many territorial species discriminate between familiar territorial neighbors and unfamiliar strangers based on individual differences in…”
Get full text

Temperature Effects on the Temporal Properties of Calling Songs in the Crickets Gryllus fultoni and G. vernalis: Implications for Reproductive Isolation in Sympatric Populations by Jang, Yikweon, Gerhardt, H. Carl

“…Two closely related wood-cricket species, Gryllus fultoni (Orthoptera: Gryllidae) and G. vernalis, produce similar calling songs, consisting of 3-pulse chirps…”
Get full text