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DOI | 10.1139/cjz-2018-0263 |
High-mountain altitudinal gradient influences thermal ecology of the Mesquite Lizard (Sceloporus grammicus) | |
Diaz de la Vega-Perez, A. H.1; Barrios-Montiel, R.2; Jimenez-Arcos, V. H.3; Bautista, A.2; Bastiaans, E.4 | |
发表日期 | 2019 |
ISSN | 0008-4301 |
EISSN | 1480-3283 |
卷号 | 97期号:8页码:659-668 |
英文摘要 | The thermal requirements of ectotherms may vary among species due to adaptation to different thermal environments. Nevertheless, some of these requirements are evolutionarily conserved, leading organisms to compensate behaviorally for harsh environmental conditions. High-mountain systems provide temperature gradients that allow for studies of evolutionary and plastic variation in thermal ecology under natural conditions. We evaluated the thermoregulation strategies of Sceloporus grammicus Wiegmann, 1828 at three points (2600, 3100, and 4150 m above sea level) along an altitudinal gradient. We found that the thermal quality of the site and the body temperatures of lizards are influenced by altitude and decrease with increasing elevation. However, lizards from the three different elevations have similar thermal requirements. High-altitude lizards have lower thermal accuracy and efficiency indices compared with those from the lower sites, owing to the low thermal quality of their environment. Nevertheless, they are efficient in thermoregulation, increasing their body temperature above the ambient temperature. We found that pregnant females from all three elevations had similar preferred body temperatures. Compared with nonpregnant females and males, they exhibited lower preferred temperatures and more accurate thermoregulation. The wide altitudinal distribution of S. grammicus is thus not caused by variable thermal requirements. Instead, the wide repertoire of physiological and behavioral strategies of these lizards allows this species to successfully inhabit contrasting environments. |
WOS研究方向 | Zoology |
来源期刊 | CANADIAN JOURNAL OF ZOOLOGY |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/101307 |
作者单位 | 1.Univ Autonoma Tlaxcala, Ctr Tlaxcala Biol Conducta, Consejo Nacl Ciencia & Tecnol, Carretera Tlaxcala Puebla Km 1-5, Tlaxcala 90062, Mexico; 2.Univ Autonoma Tlaxcala, Ctr Tlaxcala Biol Conducta, Carretera Tlaxcala Puebla Km 1-5, Tlaxcala 90062, Mexico; 3.Univ Nacl Autonoma Mexico, FES Iztacala, UBIPRO, Lab Ecol, Ave Barrios 1, Los Reyes Iztacala 54090, Tlalnepantla, Mexico; 4.SUNY Coll Oneonta, Oneonta, NY 13820 USA |
推荐引用方式 GB/T 7714 | Diaz de la Vega-Perez, A. H.,Barrios-Montiel, R.,Jimenez-Arcos, V. H.,et al. High-mountain altitudinal gradient influences thermal ecology of the Mesquite Lizard (Sceloporus grammicus)[J],2019,97(8):659-668. |
APA | Diaz de la Vega-Perez, A. H.,Barrios-Montiel, R.,Jimenez-Arcos, V. H.,Bautista, A.,&Bastiaans, E..(2019).High-mountain altitudinal gradient influences thermal ecology of the Mesquite Lizard (Sceloporus grammicus).CANADIAN JOURNAL OF ZOOLOGY,97(8),659-668. |
MLA | Diaz de la Vega-Perez, A. H.,et al."High-mountain altitudinal gradient influences thermal ecology of the Mesquite Lizard (Sceloporus grammicus)".CANADIAN JOURNAL OF ZOOLOGY 97.8(2019):659-668. |
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