ARTS: COLLABORATIVE RESEARCH: North American camel spiders (Arachnida, Solifugae, Eremobatidae): systematic revision and biogeography of an understudied taxon

骆驼蜘蛛，也被称为风蝎或避日蜘蛛，是在脆弱的，经常受到威胁的沙漠生态系统中发现的一组重要的蛛形纲动物。它们是干旱生境中昆虫和其他节肢动物的主要捕食者，也是许多沙漠物种的重要猎物。众所周知，避日生物很难研究，因为它们很难找到和收集，几乎不可能在实验室中存活，并且很难识别。与它们的名字相反，它们不是真正的蜘蛛，也不结网，而是一种独特的蜘蛛类动物，全世界已知有1,100多种。由于只有少数科学家研究他们生物学的任何方面，迫切需要培养新一代致力于这一多样化群体生物学的科学家。该项目将通过培训年轻的生物学家，包括高中生、本科生、研究生和博士后学者，彻底改变对地球生物多样性这一组成部分的研究。他们将使用最先进的分子工具，以更好地了解北美最常见和最多样化的骆驼蜘蛛群（Eremobatidae）物种之间的进化关系。该项目的另一个目标是使用骆驼蜘蛛作为模型系统，探索地球历史事件如何影响沙漠社区物种的进化和聚集。这项资助利用了北美骆驼蜘蛛仅存的专业知识，激发了新一代科学家的兴趣，他们将推动这一领域的发展。一个创新的和互动的在线识别指南，北美骆驼蜘蛛，将被开发，使科学家，博物学家，教育工作者和其他人能够识别和了解这些鲜为人知的动物。该指南将为广大读者提供一个资源，并将支持开发和扩大一个关于骆驼蜘蛛生物学的信息丰富的新网站（www.solifugae.info），该项目通过利用现有的专门知识培训学生掌握最先进的骆驼蜘蛛基因组学、地理学和分类学方法，解决骆驼蜘蛛研究中的系统和分类障碍。最近发表的骆驼蜘蛛，Eremobatidae的最大的家庭之一的多位点的基因组学，将提供一个起点，更彻底的分析，使用有针对性的富集ultraconserved元素，沿着与新的和unexplored的形态特征被认为是分类学上的信息。限制性位点相关DNA测序（RADseq）将用于通过检查两个明确定义的物种组来生成全基因组SNP数据，用于骆驼蜘蛛的第一次地理分析。作为该项目的一部分，特别是在奇瓦瓦沙漠，下加利福尼亚半岛和加州海岸山脉进行的广泛的实地考察，无疑将揭示该科的许多新物种，大大提高了对这些地下蜘蛛多样性的认识，该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准。

Camel spiders, also known as wind scorpions or solifuges, are an important group of arachnids found in fragile, often threatened desert ecosystems. They are dominant predators of insects and other arthropods in arid habitats and are also important prey for many desert species. Solifuges are notoriously difficult to study since they are hard to find and collect, nearly impossible to keep alive in the lab, and challenging to identify. Contrary to their name, they are not true spiders and do not build webs but represent a unique arachnid group with over 1,100 species known worldwide. With only a few scientists studying any aspect of their biology, there is a pressing need to train a new generation of scientists devoted to the biology of this diverse group. This project will revolutionize the study of this component of the planet's biodiversity by training young biologists, including high school students, undergraduates, graduate students, and a postdoctoral scholar. They will use state-of-the-art molecular tools to better understand the evolutionary relationships among species in the most common and diverse group of camel spiders in North America, the Eremobatidae. Another goal of the project is to use camel spiders as a model system to explore how Earth history events have influenced the evolution and assembly of species in desert communities. This grant leverages the only remaining expertise on North American camel spiders to excite a new generation of scientists who will move this field forward. An innovative and interactive online identification guide, the Camel Spiders of North America, will be developed to enable scientists, naturalists, educators, and others to identify and learn about these little-known animals. The guide will provide a resource for a broad audience and will support the development and expansion of an informative new website on camel spider biology (www.solifugae.info).This project addresses the systematic and taxonomic impediments in the study of camel spiders by using existing expertise to train students in cutting-edge phylogenomic, biogeographic, and taxonomic methodology. A recently published multi-locus phylogeny of one of the largest families of camel spiders, the Eremobatidae, will provide a starting point for a more thorough analysis using targeted enrichment of ultraconserved elements, along with novel and underexplored morphological characters thought to be taxonomically informative. Restriction site-associated DNA sequencing (RADseq) will be used to generate genome-wide SNP data for the very first phylogeographic analyses of camel spiders by examining two well-defined species groups. Extensive fieldwork carried out as part of this project, particularly in the Chihuahuan Desert, Baja California peninsula, and California Coast Ranges, will undoubtedly reveal many new species in this family, greatly enhancing the understanding of arachnid diversity present in these under-explored arid ecosystems.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.