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Sand transport and burrow construction in sparassid and lycosid spiders | |
Foelix, Rainer1; Rechenberg, Ingo2; Erb, Bruno3; Albin, Andrea4; Aisenberg, Anita4 | |
通讯作者 | Foelix, Rainer |
会议名称 | 20th International Congress of Arachnology |
会议日期 | JUL 02-09, 2016 |
会议地点 | Golden, CO |
英文摘要 | A desert-living spider sparassid (Cebrennus rechenbergi Jager, 2014) and several lycosid spiders (Evippomma rechenbergi Bayer, Foelix & Alderweireldt 2017, Allocosa senex (Mello-Leitao, 1945), Geolycosa missouriensis (Banks, 1895)) were studied with respect to their burrow construction. These spiders face the problem of how to transport dry sand and how to achieve a stable vertical tube. Cebrunnus rechenbergi and A. senex have long bristles on their palps and chelicerae which form a carrying basket (psammophore). Small balls of sand grains are formed at the bottom of a tube and carried to the burrow entrance, where they are dispersed. Psammophores are known in desert ants, but this is the first report in desert spiders. Evippomma rechenbergi has no psammophore but carries sand by using a few sticky threads from the spinnerets; it glues the loose sand grains together, grasps the silk/sand bundle and carries it to the outside. Although C. rechenbergi and E. rechenbergi live in the same environment, they employ different methods to carry sand. Geolycosa missouriensis lives in a moister habitat and produces solid sand pellets in which sand grains are caked together (without silk threads); the compact pellets are flung away from the burrow entrance by a rapid extension of the first legs. The spiders stabilize the developing tube inside by repeatedly adding silk rings, while digging down. This wall is very thin, consisting of only a few layers of crisscrossing silk threads. An excavated burrow collapses immediately, indicating that the stability is not due to the silk. Instead, the tight interconnection of neighboring sand grains-as in a vault-yields the necessary solidity to the burrow. |
英文关键词 | Desert spiders functional morphology sand digging |
来源出版物 | JOURNAL OF ARACHNOLOGY |
ISSN | 0161-8202 |
EISSN | 1937-2396 |
出版年 | 2017 |
卷号 | 45 |
期号 | 3 |
页码 | 255-264 |
出版者 | AMER ARACHNOLOGICAL SOC |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Switzerland;Germany;Uruguay |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000417476800001 |
WOS关键词 | ALLOCOSA-BRASILIENSIS ; ARANEAE SPARASSIDAE ; NATURAL-HISTORY ; WOLF SPIDER ; DESERT ; ANTS |
WOS类目 | Entomology |
WOS研究方向 | Entomology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/306185 |
作者单位 | 1.Neue Kantonssch Aarau, Biol Dept, Electron Microscopy Unit, CH-5000 Aarau, Switzerland; 2.Tech Univ Berlin, Bion & Evolut Tech, Sekr ACK 1,Ackerstr 71-76, D-13355 Berlin, Germany; 3.Kilbigstr 15, CH-5018 Erlinsbach, Switzerland; 4.Inst Invest Biol Clemente Estable, Lab Etol Ecol & Evoluc, Ave Italia 3318, Montevideo 11600, Uruguay |
推荐引用方式 GB/T 7714 | Foelix, Rainer,Rechenberg, Ingo,Erb, Bruno,et al. Sand transport and burrow construction in sparassid and lycosid spiders[C]:AMER ARACHNOLOGICAL SOC,2017:255-264. |
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