Evolution of Anoline Lizard Display Behavior
- T. A. Jenssen
- Psychology, Biology
- 1 February 1977
For some species display repertoire size seems to have evolved from a single display to repertoires of multiple displays; these subsequent displays are generally restricted to aggressive interactions.
Structure and use of male territorial headbob signals by the lizard Anolis carolinensis
- K. Decourcy, T. A. Jenssen
- PsychologyAnimal Behaviour
- 1 February 1994
Recommendations are made for the abandonment of functional labels on patterns of display behaviour (e.g. assertion display and challenge display), regardless of taxon studied.
Sexual Dimorphisms in Aggressive Signal Structure and Use by a Polygynous Lizard, Anolis carolinensis
- T. A. Jenssen, K. S. Orrell, M. Lovern
It is suggested that these displays, which function in competitive interference, have been less directionally selected in females than in males because the outcomes of consexual contests carry fewer reproductive consequences for females than for males.
BEHAVIORAL PROFILE OF FREE-RANGING MALE LIZARDS, ANOLIS CAROLINENSIS, ACROSS BREEDING AND POST-BREEDING SEASONS
- T. A. Jenssen, N. Greenberg, Katheryn A. Hovde
Males exhibited a wide range of foraging behavior, reflecting a generalist's mode of prey capture, and there was no evidence that change in body color was matching substrate color; however, green-to-brown shifts in bodycolor were usually associated with the initiation of social interactions.
HETEROSEXUAL SIGNALLING BY THE LIZARD ANOLIS CAROLINENSIS, WITH INTERSEXUAL COMPARISONS ACROSS CONTEXTS
- K. S. Orrell, T. A. Jenssen
Heterosexual signalling from a perspective of intrasexual selection is interpreted to discuss the species’ female-defence mating system and to interpret the absence of courtship-specie c headbob display.
Field-testing the protandry-based mating system for the lizard, Anolis carolinesis: does the model organism have the right model?
- T. A. Jenssen, M. Lovern, J. Congdon
- BiologyBehavioral Ecology and Sociobiology
- 1 July 2001
The traditional protandry-based A. carolinensis paradigm is replaced with a realistic onset sequence into the breeding season and a new model for the species' mating system, which underscores the need for field validation when laboratory-generated data are fitted to adaptive paradigms.
Behavioural, thermal, and metabolic characteristics of a wintering lizard (Anolis carolinensis) from South Carolina
- T. A. Jenssen, J. Congdon, H. Berna
- Biology, Environmental Science
- 1 April 1996
It is speculated that the observed basking T b s reflect an adaptive trade-off between non-basking Tb s for minimum metabolic costs and optimally high T bs to facilitate physiological processes (e.g. gonadal recrudescence), but at a threat to lipid reserves.
Developmental Effects of Testosterone on Behavior in Male and Female Green Anoles (Anolis carolinensis)
- M. Lovern, F. Mcnabb, T. A. Jenssen
- BiologyHormones and Behavior
- 1 March 2001
The role of testosterone (T) in the development of sexually dimorphic behavior in the green anole lizard, Anolis carolinensis, is addressed and the pattern of endogenous T concentrations during ontogeny and the behavioral effects of experimentally elevated T are documented.
Female Activity Profile of a Polygynous Lizard (Anolis Carolinensis): Evidence of Intersexual Asymmetry
- S. Nunez, T. A. Jenssen, Kasey Ersland
In a female activity profile which de-emphasized conspicuousness, it is found little evidence for a pheromone-based alternative to visual signalling and both females and males had equivalent feeding rates, suggesting that the energetic needs of female egg production and male territorial maintenance are comparable.
Competitive Interference between the Puerto Rican Lizards, Anolis cooki and A. cristatellus
- T. A. Jenssen, D. Marcellini, Chris A. Pague, Lars A. Jenssen
- 18 December 1984
Adult males in both the allopatric and sympatric conditions showed a significant and positive correlation between snout-vent lengths and the relative complexity and height of their immediate microhabitat, which suggests that there is intraspecific competition among males.