Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.23797/2159-6719_24_5 |
| Partial submergence: An undescribed behavioral adjustment for thermoregulation at high ambient temperature in Aeshnidae | |
| Deviche, Pierre | |
| 通讯作者 | Deviche, P (corresponding author), Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA. |
| 来源期刊 | INTERNATIONAL JOURNAL OF ODONATOLOGY
 |
| ISSN | 1388-7890 |
| EISSN | 2159-6719 |
| 出版年 | 2021 |
| 卷号 | 24页码:71-81 |
| 英文摘要 | Many insects including odonates thermoregulate using a combination of behavioral and physiological mechanisms. At high ambient temperature (Ta), these mechanisms include decreased heat production and increased heat loss. Heat production can be reduced by decreasing activity. Heat loss can be enhanced by perching in a shaded microhabitat where temperature is cooler than in the surrounding environment. Aeshnids, which are intermittent endotherms, increase heat loss at high Ta also by increasing hemolymph circulation from the thorax, where most metabolic heat is produced, to the abdomen, where it dissipates to the environment by convection. While studying two aeshnid species (Anax junius and Rhionaeschna multicolor) at a Sonoran Desert (Arizona, USA) stream, I observed partially submerged mature individuals of both sexes of these species. This heretofore undescribed behavior was seen only at Ta > 43 degrees C and almost exclusively during the hottest part of the day (15:00-17:00 hr), when the daily difference between Ta and water temperature (Tw) was, on average, largest. A cooling effect of partial submergence behavior on body temperature would, therefore, presumably be most effective also during this period. Several percher species of libellulids were present at the study site. These dragonflies are not known to use endothermy for thermoregulation or to increase hemolymph circulation to the abdomen to dissipate heat at high Ta, and none was ever observed to partially submerge. It is suggested in aeshnids that partial submergence at high Ta serves a thermoregulatory function by facilitating body heat dissipation from the abdomen. |
| 英文关键词 | Common Green Darner Anax junius body temperature Blue-eyed Darner dragonfly Odonata endothermy Libellulidae Rhionaeschna multicolor Sonoran Desert |
| 类型 | Article |
| 语种 | 英语 |
| 开放获取类型 | gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000688296400001 |
| WOS关键词 | ANAX-JUNIUS ODONATA ; DRAGONFLIES ODONATA |
| WOS类目 | Entomology |
| WOS研究方向 | Entomology |
| 来源机构 | Arizona State University |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/363655 |
| 作者单位 | [Deviche, Pierre] Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA |
| 推荐引用方式 GB/T 7714 | Deviche, Pierre. Partial submergence: An undescribed behavioral adjustment for thermoregulation at high ambient temperature in Aeshnidae[J]. Arizona State University,2021,24:71-81. |
| APA | Deviche, Pierre.(2021).Partial submergence: An undescribed behavioral adjustment for thermoregulation at high ambient temperature in Aeshnidae.INTERNATIONAL JOURNAL OF ODONATOLOGY,24,71-81. |
| MLA | Deviche, Pierre."Partial submergence: An undescribed behavioral adjustment for thermoregulation at high ambient temperature in Aeshnidae".INTERNATIONAL JOURNAL OF ODONATOLOGY 24(2021):71-81. |
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