Pizarro-Araya Jaime, Alfaro Fermín M, Ojanguren-Affilastro Andrés A, Moreira-Muñoz Andrés
Laboratorio de Entomología Ecológica, Departamento de Biología, Facultad de Ciencias, Universidad de La Serena, Casilla 554, La Serena 1700000, Chile.
Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, Casilla 554, La Serena 1700000, Chile.
Insects. 2021 Oct 8;12(10):916. doi: 10.3390/insects12100916.
The Atacama Desert at its margins harbors a unique biodiversity that is still very poorly known, especially in coastal fog oases spanning from Perú towards the Atacama coast. An outstanding species-rich fog oasis is the latitudinal fringe Paposo-Taltal, that is considered an iconic site of the Lomas formation. This contribution is the first to reveal the knowledge on arthropods of this emblematic coastal section. We used pitfall traps to study the taxonomic composition, richness, and abundance of terrestrial arthropods in 17 sample sites along a 100 km section of the coast between 24.5 and 25.5 southern latitude, in a variety of characteristic habitats. From a total of 9154 individuals, we were able to identify 173 arthropod species grouped into 118 genera and 57 families. The most diverse group were insects, with 146 species grouped in 97 genera and 43 families, while arachnids were represented by 27 species grouped into 21 genera and 14 families. Current conservation challenges on a global scale are driving the creation and evaluation of potential conservation sites in regions with few protected areas, such as the margins of the Atacama Desert. Better taxonomic, distributional, and population knowledge is urgently needed to perform concrete conservation actions in a biodiversity hotspot at a desert edge.
阿塔卡马沙漠边缘拥有独特的生物多样性，但人们对其了解甚少，尤其是在从秘鲁延伸至阿塔卡马海岸的沿海雾绿洲地区。一个物种丰富的杰出雾绿洲是纬度边缘的帕波索 - 塔尔塔尔地区，它被视为洛马斯地貌的标志性地点。本研究首次揭示了这个标志性沿海区域节肢动物的相关知识。我们使用陷阱诱捕法，在南纬24.5度至25.5度之间、长达100公里的海岸沿线的17个采样点，对各种典型栖息地中的陆生节肢动物的分类组成、丰富度和丰度进行了研究。在总共9154个个体中，我们能够识别出173种节肢动物，它们分属于118个属和57个科。种类最多的类群是昆虫，有146种，分属于97个属和43个科，而蛛形纲动物有27种，分属于21个属和14个科。当前全球范围内的保护挑战促使人们在保护区较少的地区，如阿塔卡马沙漠边缘，创建和评估潜在的保护地点。在沙漠边缘的生物多样性热点地区开展具体的保护行动，迫切需要更完善的分类学、分布和种群知识。
