干旱区生态环境知识资源中心(Arid): Air Temperature and Humidity at the Bottom of Desert Wolf Spider Burrows Are Not Affected by Surface Conditions

Arid

DOI	10.3390/insects12100943
	Air Temperature and Humidity at the Bottom of Desert Wolf Spider Burrows Are Not Affected by Surface Conditions
	Steves, Irene; Berliner, Pedro; Pinshow, Berry
通讯作者	Pinshow, B (corresponding author), Ben Gurion Univ Negev, Mitrani Dept Desert Ecol, Jacob Blaustein Inst Desert Res, IL-8499000 Midreshet Ben Gurion, Israel.
来源期刊	INSECTS
EISSN	2075-4450
出版年	2021
卷号	12 期号:10
英文摘要	Simple Summary:& nbsp;We investigated whether trapdoors, which small Negev Desert wolf spiders (Lycosa sp.) use to close their burrows, serve to maintain favorable conditions of temperature and humidity within them. We removed trapdoors from burrow entrances and monitored changes in temperature and relative humidity in their bottoms, where the spiders reside during the day. We also followed the behavioral responses of these spiders to trapdoor removal at different times of the day and in different seasons and monitored temperature and relative humidity in artificial burrows during summer mornings and at midday. At noon, air temperature at the bottom of open artificial burrows increased by less than 1 & DEG;C more than in covered ones, and total humidity remained constant, even though air temperature at the soil surface reached 55 & DEG;C when the burrow temperature was 35 & DEG;C. The relatively small increase in air temperature in uncovered burrows at midday was probably due to the penetration of direct solar radiation. Thus, it is evident that the presence of a trapdoor has a negligible effect on the microclimate at the bottom of these spiders' burrows and its roles are more likely predator avoidance and prevention of flooding and stones and sand from falling in. Burrows are animal-built structures that can buffer their occupants against the vagaries of the weather and provide protection from predators. We investigated whether the trapdoors of wolf spider (Lycosa sp.; temporary working name L. hyraculus) burrows in the Negev Desert serve to maintain favorable environmental conditions within the burrow by removing trapdoors and monitoring the ensuing temperature and relative humidity regime within them. We also monitored the behavioral responses of L. hyraculus to trapdoor removal at different times of the day and in different seasons. L. hyraculus often spun silk mesh in their burrow entrances in response to trapdoor removal during the day, possibly to deter diurnal predators. The frequency of web-spinning peaked on summer mornings, but spiders began spinning webs sooner after trapdoor removal later in the day. In addition, we monitored temperature and relative humidity in artificial burrows in the summer during the morning and at midday. At noon, air temperature (T-a) at the bottom of open burrows increased by < 1 & DEG;C more than in covered burrows, but water vapor pressure in burrows did not change. The relatively small increase in T-a in uncovered burrows at midday can probably be ascribed to the penetration of direct solar radiation. Thus, air temperature and humidity at the bottom of the burrow are apparently decoupled from airflow at the surface.
英文关键词	Lycosidae spider burrows activity patterns responses to disturbance microenvironment
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000715273000001
WOS关键词	ARANEAE ; LYCOSIDAE ; VENTILATION ; BIOLOGY
WOS类目	Entomology
WOS研究方向	Entomology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368332
作者单位	[Steves, Irene; Pinshow, Berry] Ben Gurion Univ Negev, Mitrani Dept Desert Ecol, Jacob Blaustein Inst Desert Res, IL-8499000 Midreshet Ben Gurion, Israel; [Berliner, Pedro] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, French Assoc Inst Agr & Biotechnol, IL-8499000 Midreshet Ben Gurion, Israel
推荐引用方式 GB/T 7714	Steves, Irene,Berliner, Pedro,Pinshow, Berry. Air Temperature and Humidity at the Bottom of Desert Wolf Spider Burrows Are Not Affected by Surface Conditions[J]. Ben-Gurion University of the Negev,2021,12(10).
APA	Steves, Irene,Berliner, Pedro,&Pinshow, Berry.(2021).Air Temperature and Humidity at the Bottom of Desert Wolf Spider Burrows Are Not Affected by Surface Conditions.INSECTS,12(10).
MLA	Steves, Irene,et al."Air Temperature and Humidity at the Bottom of Desert Wolf Spider Burrows Are Not Affected by Surface Conditions".INSECTS 12.10(2021).