当前位置: X-MOL 学术J. Nat. Conserv. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Environmental variables and distribution data support the preliminary conservation status of a trapdoor spider in a transformed coastal ecosystem
Journal for Nature Conservation ( IF 2.2 ) Pub Date : 2021-02-28 , DOI: 10.1016/j.jnc.2021.125985
Rodrigo M. Barahona-Segovia , Rubén Montenegro , Rodrigo González G.

Mediterranean coastal ecosystems are major tourist destinations that support intensive real estate business developments. However, these areas are also important as biodiversity hotspots. Coastal spiders have been poorly studied as indicators of habitat disturbance, especially those that depend on certain environmental variables. Plesiolena bonneti is a trapdoor spider that exclusively inhabits the coastal areas of central Chile (i. e., the Coquimbo region, 29°57′S, 71°20′W), intensely affected by habitat loss due to urbanization associated with tourist destinations. The main aim of this work was to establish, preliminary, the conservation status of P. bonneti supported by different environmental variables that define the activity period and occurrence of P. bonneti males and its distribution area. Trapdoor spiders are rare and difficult to observe in the field. and therefore, we used datasets obtained from citizen science to establish the period of activity, and environmental variables (maximum temperature, relative humidity, and month of observation) as predictors of its occurrence. Moreover, since it lives in an area perturbed by urbanization, we propose a preliminary conservation status using the IUCN Red List. We found that the species is observed significantly more in the austral autumn and that its occurrence (65 % of variability through Akaike weight) depends on maximum temperatures of 17 °C and relative humidity above 90 %. Its current distribution is mainly coastal, between the Atacama and Coquimbo regions. We propose that this species should be considered a vulnerable species. The increased observation of male P. bonneti post-rains may be driven by a physiological response to avoid water loss, which would coincide with the reproductive period. As the largest number of records are observed in coastal urban areas, we propose two simple management measures: the creation of nature reserves within the city, and an educational program for this spider.



中文翻译:

环境变量和分布数据支持在转变后的沿海生态系统中活板蜘蛛的初步保护状态

地中海沿岸的生态系统是支持密集型房地产业务发展的主要旅游目的地。但是,这些地区作为生物多样性热点也很重要。沿海蜘蛛作为栖息地扰动的指标,研究不足,尤其是依赖于某些环境变量的蜘蛛。Plesiolena bonneti是只活在智利中部沿海地区(Coquimbo地区,南纬29°57′,西经71°20′)的体门蜘蛛,受到与旅游目的地相关的城市化造成的栖息地流失的严重影响。这项工作的主要目的是初步确定P. bonneti的保护状况,并根据不同的环境变量确定其活动期限和发生时间。博纳蒂男性及其分布地区。活板蜘蛛很罕见,在野外很难观察到。因此,我们使用从公民科学中获得的数据集来确定活动的持续时间,并使用环境变量(最高温度,相对湿度和观测月份)来预测活动的发生。此外,由于它生活在受城市化影响的地区,我们建议使用IUCN红色名录作为初步保护状态。我们发现该物种在南方秋季出现的现象明显更多,其发生(Akaike重量变化的65%)取决于最高温度17°C和相对湿度90%以上。目前的分布主要在阿塔卡马(Atacama)和科金博(Coquimbo)地区之间的沿海地区。我们建议应将该物种视为易感物种。雨后疟原虫可能是由生理反应驱动的,以避免水分流失,而水分流失与生殖期相吻合。由于在沿海城市地区观察到的记录数量最多,因此我们提出了两种简单的管理措施:在城市内建立自然保护区,以及针对这种蜘蛛的教育计划。

更新日期:2021-03-07
down
wechat
bug