Display Behavior and Habitat Use in Single and Mixed Populations of <i>Anolis carolinensis</i> and <i>Anolis sagrei</i> Lizards

Edwards, Jessica; Lailvaux, Simon P.

doi:10.1111/j.1439-0310.2012.02037.x

Cited by 29 publications

(21 citation statements)

References 37 publications

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“…Closely related and morphologically similar to high-perching trunkcrown anoles in Cuba (Williams, 1969;Glor et al, 2005;Campbell-Staton et al, 2012), A. carolinensis perches at low heights in the absence of other Anolis lizards but shifts to higher perches in the presence of the larger, also low-perching A. sagrei (Collette, 1961;Edwards and Lailvaux, 2012;Stuart et al, 2014). In this study, we assess the effect of the presence of A. sagrei on the movement rates of male and female A. carolinensis by comparing populations of A. carolinensis where they are the only anoles present to populations of A. carolinensis where they cooccur with A. sagrei.…”

Section: Introductionmentioning

confidence: 97%

Movement Rates of the LizardAnolis carolinensis(Squamata: Dactyloidae) in the Presence and Absence ofAnolis sagrei(Squamata: Dactyloidae)

Kamath

Stuart

2015

Breviora

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Section: Introductionmentioning

confidence: 97%

Movement Rates of the LizardAnolis carolinensis(Squamata: Dactyloidae) in the Presence and Absence ofAnolis sagrei(Squamata: Dactyloidae)

Kamath

Stuart

2015

Breviora

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“…These displays have been extensively studied in green anoles (e.g., Jenssen et al. ; Lovern and Jenssen ; Bloch and Irschick ; Edwards and Lailvaux ) and occur with significantly higher frequency in the breeding season compared to the nonbreeding season (Jenssen et al. , ).…”

Section: Introductionmentioning

confidence: 99%

“…Male green anoles extend their dewlaps in combination with headbobs and pushups to form stereotyped sequences of visual displays that are used in a variety of ecological contexts, including courtship displays to females and aggressive displays to other males (Decourcy and Jenssen 1994). These displays have been extensively studied in green anoles (e.g., Jenssen et al 2000;Lovern and Jenssen 2003;Bloch and Irschick 2006;Edwards and Lailvaux 2012) and occur with significantly higher frequency in the breeding season compared to the nonbreeding season (Jenssen et al 1995(Jenssen et al , 2001. Irschick et al (2006) observed that male green anole dewlaps change size between the breeding and nonbreeding seasons in nature, being larger in the summer when anoles are actively breeding as compared to in the spring and winter.…”

Section: Introductionmentioning

confidence: 99%

The incredible shrinking dewlap: signal size, skin elasticity, and mechanical design in the green anole lizard (Anolis carolinensis)

Lailvaux

Leifer

Kircher

et al. 2015

Ecology and Evolution

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The expression of male secondary sexual traits can be dynamic, changing size, shape, color, or structure over the course of different seasons. However, the factors underlying such changes are poorly understood. In male Anolis carolinensis lizards, a morphological secondary sexual signal called the dewlap changes size seasonally within individuals. Here, we test the hypothesis that seasonal changes in male dewlap size are driven by increased use and extension of the dewlap in spring and summer, when males are breeding, relative to the winter and fall. We captured male green anole lizards prior to the onset of breeding and constrained the dewlap in half of them such that it could not be extended. We then measured dewlap area in the spring, summer, and winter, and dewlap skin and belly skin elasticity in summer and winter. Dewlaps in unconstrained males increase in area from spring to summer and then shrink in the winter, whereas the dewlaps of constrained males consistently shrink from spring to winter. Dewlap skin is significantly more elastic than belly skin, and skin overall is more elastic in the summer relative to winter. These results show that seasonal changes in dewlap size are a function of skin elasticity and display frequency, and suggest that the mechanical properties of signaling structures can have important implications for signal evolution and design.

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“…However, when A. sagrei is introduced into an environment previously dominated by A. carolinensis , A. carolinensis commonly exhibits shifts in habitat use and often becomes rarer within a period of a few years (Echternacht, ; Campbell, ). Indeed, several studies, including a recent study of anoles in New Orleans, have found that A. carolinensis perches significantly higher when A. sagrei are present, suggesting that A. sagrei are actively displacing the native green anoles (Collette, ; Losos & Spiller, ; Edwards & Lailvaux, ). The factors behind this shift in habitat are currently unclear, but the population in New Orleans offers an ideal study situation to address this question.…”

Section: Introductionmentioning

confidence: 99%

Do interspecific interactions between females drive shifts in habitat use? A test using the lizardsAnolis carolinensisandA. sagrei

Edwards

Lailvaux

2013

Biol J Linn Soc Lond

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An important goal in evolutionary ecology is to understand how and why coexisting closely related species partition habitat among themselves. Although studies of interspecific interactions typically focus on males, interactions between females may also play an important role in shaping habitat use within multi-species communities. The green anole (Anolis carolinensis) exhibits a wide range of habitat use in south-eastern Louisiana, but its observed habitat use is restricted and altered in areas where it occurs with the introduced Anolis sagrei. We staged interactions between these two species in the laboratory to test the hypothesis that A. sagrei dominate A. carolinensis in contests over shared habitat. We examined whether species identity, bite force, dewlap size, and body size affected the outcome of interspecific interactions between both males and females, and tested the prediction that bite force and size would be the most important determinants of interaction outcomes in both sexes. In male interspecific interactions, we found that individuals with relatively larger dewlaps tended to score higher on aggressive behaviours regardless of species identity, and that interactions consisted of signalling and rarely escalated to physical combat. However, we found that A. sagrei females achieved higher aggressive scores than A. carolinensis females in almost all cases, lending support to the notion that female interspecific behaviour is probably more important than male behaviour in driving changes in habitat use.

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Display Behavior and Habitat Use in Single and Mixed Populations of Anolis carolinensis and Anolis sagrei Lizards

Cited by 29 publications

References 37 publications

Movement Rates of the LizardAnolis carolinensis(Squamata: Dactyloidae) in the Presence and Absence ofAnolis sagrei(Squamata: Dactyloidae)

Movement Rates of the LizardAnolis carolinensis(Squamata: Dactyloidae) in the Presence and Absence ofAnolis sagrei(Squamata: Dactyloidae)

The incredible shrinking dewlap: signal size, skin elasticity, and mechanical design in the green anole lizard (Anolis carolinensis)

Do interspecific interactions between females drive shifts in habitat use? A test using the lizardsAnolis carolinensisandA. sagrei

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