Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Sarah C. Humfeld"'
Publikováno v:
Bioacoustics. 26:249-258
Sustained perfect synchrony of signal production by animals is unrealistic, but even near-synchronous signalling is extremely rare. Near-synchronous signalling has been documented in some orthopteran insects and fireflies, and one kind of frog. This
Condition-dependent signaling and adoption of mating tactics in an amphibian with energetic displays
Autor:
Sarah C. Humfeld
Publikováno v:
Behavioral Ecology. 24:859-870
Most alternative reproductive phenotypes are interpreted as alternative tactics within a conditional strategy: all individuals are predicted to choose among behavioral tactics based on some measure of their physiological condition or competitive stat
Publikováno v:
Biological Journal of the Linnean Society. 107:219-232
We surveyed the geographical variation in male advertisement calls of the wide-ranging canyon treefrog, Hyla arenicolor, and found large call differences among geographically distant lineages that had been characterized by a recent phylogeographical
Publikováno v:
Journal of Evolutionary Biology. 23:1425-1435
Detection of genetic and behavioural diversity within morphologically similar species has led to the discovery of cryptic species complexes. We tested the hypothesis that US populations of the canyon treefrog (Hyla arenicolor) may consist of cryptic
Autor:
Sarah C. Humfeld
Publikováno v:
Animal Behaviour. 75:205-215
Male green treefrogs, Hyla cinerea, attract both potential mates and satellite males with their advertisement calls. Males using the satellite mating tactic position themselves silently near a calling male and attempt to intercept females attracted t
Publikováno v:
Proceedings of the Royal Society B: Biological Sciences. 274:1789-1794
The evolution of complex signals may be favoured by hidden preferences or pre-existing sensory biases. Females of two species of grey treefrogs ( Hyla chrysoscelis and Hyla versicolor ) were tested with combinations of a conspecific advertisement cal
Publikováno v:
Animal Behaviour. 65:1223-1234
Acoustic communication is important for determining and maintaining intermale spacing in breeding aggregations of anurans and insects. Because the number and proximity of signalling males can show extensive temporal and spatial variation, we should e
Autor:
H. C. Gerhardt, Sarah C. Humfeld
Publikováno v:
Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology. 199(2)
In many species of anurans, advertisement calls excite only one of the two inner-ear organs. One prediction of the pre-existing bias hypothesis is that signal innovations that additionally excite the "untapped" organ will be more behaviorally effecti
Publikováno v:
The Journal of the Acoustical Society of America. 135:2239-2239
Detection of genetic and behavioral diversity within morphologically similar species has led to the discovery of cryptic species complexes. We tested the hypothesis that the canyon treefrog (Hyla arenicolor) may consist of cryptic species by examinin
Autor:
H. Carl Gerhardt, Sarah C. Humfeld
Publikováno v:
Proceedings of the Royal Society B: Biological Sciences; Jul2007, Vol. 274 Issue 1619, p1789-1794, 6p