Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Robert G Jaeger"'
Autor:
Nancy R. KOHN, Jennifer M. DEITLOFF, Schuyler F. DARTEZ, Michelle M. WILCOX, Robert G. JAEGER
Publikováno v:
Current Zoology, Vol 59, Iss 3, Pp 326-334 (2013)
We investigated how exposure duration (time that two individuals initially interact) and separation interval (time between the initial interaction and a subsequent interaction) affect recognition memory of conspecifics in male red-backed salamanders
Externí odkaz:
https://doaj.org/article/cd2854f54e9d48e480ee17708bd4d8e7
Autor:
Robert G. Jaeger, Sharon E. Wise
Publikováno v:
Ichthyology & Herpetology. 109
Female fitness is often influenced by trade-offs in energy allocated to reproduction or self-maintenance that is dependent upon the life history of the organism. Maternal body size and condition are factors that are often positively correlated with c
Autor:
Robert G. Jaeger, Sharon E. Wise
Publikováno v:
Behaviour. 153:187-207
We studied seasonal and geographic variation in the territorial behaviour of male red-backed salamanders, Plethodon cinereus. We examined tail loss in the forest and aggressive and submissive behaviour in the laboratory during summer (non-courtship s
The small, terrestrial eastern red-backed salamander is abundant on many forest floors of northeastern North America. Dr. Robert Jaeger and many of his graduate students spent over 50 years studying this species in New York and Virginia, using ecolog
Autor:
Jack P. Hailman, Robert G. Jaeger
Publikováno v:
Zeitschrift für Tierpsychologie. 33:352-407
Autor:
Eva A. Horne, Robert G. Jaeger
Publikováno v:
Ethology. 78:143-152
Pheromones provide an important source of communication during social interactions of caudate amphibians. To further examine their use in territorial defense, we performed a laboratory experiment to test the hypothesis that non-courting female red-ba
Publikováno v:
Herpetologica. 65:174-182
Competition between closely related species can affect behavioral interactions. Intense interspecific competition may favor the evolution of elevated levels of interspecific aggression, termed alpha selection. Salamanders of the genus Plethodon exhib
Autor:
Nancy R. Kohn, Robert G. Jaeger
Publikováno v:
Behaviour. 146:1485-1498
Summary The use of multiple cues can enhance the detection, recognition, discrimination, and mem-orability of individuals by receivers. We conducted two experiments, using only males, totest whether territorial red-backed salamanders, Plethodon ciner
Publikováno v:
Herpetologica. 64:180-188
Interspecific competition between closely-related and ecologically similar species may limit geographic ranges and fine-scale sympatry, especially when one species is aggressive toward another species. Throughout Ohio, two closely-related salamander
Autor:
Tami S. Ransom, Robert G. Jaeger
Publikováno v:
Herpetologica. 64:20-31
Although many field experiments have examined interactions among terrestrial salamanders or among semi-aquatic salamanders, virtually no research has examined potential interactions among salamander species across ecotones. Past research has indicate