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Sleeping Behavior of the Secretive Puerto Rican Twig Anole, Anolis occultus
Caribbean Journal of Science ( IF 0.4 ) Pub Date : 2020-08-01 , DOI: 10.18475/cjos.v50i1.a18
Levi Storks 1 , Manuel Leal 1
Affiliation  

Animals are particularly vulnerable during sleep, yet studies addressing sleeping behavior are rare among reptiles. Although the behavior of Anolis lizards has been widely documented, only a handful of studies have described sleeping behavior in this group. Very few of those studies focus on the cryptic twig anoles, an ecomorph characterized by extreme morphology and unique behavior among Anolis. Here we report data on the ethoecology of sleep in the Puerto Rican twig anole, Anolis occultus, including sleeping position and the selection of sleeping sites. We found that A. occultus uses narrow perches with an average diameter of 0.24 cm at an average height of 3.7 m. We observed A. occultus sleeping most often on twigs horizontally with its snout at the distal end of the perch with its tail curled around the perch. We also found no evidence of sleeping site fidelity in A. occultus. Our observations are congruent with previous reports, and provide further evidence for the possibility of convergence in sleeping behavior among anoles belonging to the twig ecomorph. We discuss our findings in the context of sleeping behavior across lizards and suggest that the ethoecology of sleep in A. occultus and lizards in general has been shaped by selection to reduce the likelihood of predation.

中文翻译:

隐秘的波多黎各人树枝嫩Anoles的睡眠行为

动物在睡眠期间特别脆弱,但是在爬行动物中很少有针对睡眠行为的研究。尽管Anolis蜥蜴的行为已被广泛记录,但只有少数研究描述了该组的睡眠行为。这些研究中很少有研究集中在隐蔽的树枝小茴香上,这是一种以极端形态和Anolis的独特行为为特征的生态形态。在这里,我们报告有关波多黎各小枝an(Anolis occultus)睡眠的睡眠生态学的数据,包括睡眠位置和睡眠部位的选择。我们发现隐匿曲霉使用狭窄的栖息地,平均直径为0.24厘米,平均高度为3.7 m。我们观察到隐匿曲霉最常卧在树枝上,其鼻子位于鲈鱼的远端,尾巴卷曲在鲈鱼上。我们也没有发现隐匿性隐孢子虫的睡眠部位保真度的证据。我们的观察与先前的报道相吻合,并为进一步证实了属于树枝生态型的肛门之间的睡眠行为趋于融合的可能性提供了证据。我们讨论跨蜥蜴的睡眠行为的背景下我们的发现,并建议通过选择来塑造隐匿曲霉和蜥蜴的睡眠的生态学,以减少捕食的可能性。
更新日期:2020-09-16
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