[Herpetology • 2018] Asaccus arnoldi • Systematics, Biogeography and Evolution of Asaccus gallagheri (Squamata, Phyllodactylidae) with the Description of A New Endemic Species from Oman ---ScRaBBlE

Asaccus arnoldi

 Simó-Riudalbas, Tarroso, Papenfuss, Al-Sariri & Carranza, 2018

  DOI: 10.1080/14772000.2017.1403496 

Abstract

The Hajar Mountains are the highest mountain range in eastern Arabia. Despite being classified as a mountain desert, it is considered one of the top biodiversity hotspots of Arabia. As a result of its relatively old geological origin, complex topography, environmental heterogeneity and geographic isolation from other mountain ranges, its fauna and flora have diversified significantly producing high levels of endemicity, particularly amongst reptiles. Several genetic studies indicate that this diversity may still be underestimated, especially within some groups containing morphologically similar species like the nocturnal geckos of the genus Asaccus. These have radiated extensively on both sides of the Gulf of Oman, in the Hajar Mountains and the Zagros Mountains of south-west Asia, and are a good example of the faunal affinities between these two mountain ranges. In the present work, we analyse A. gallagheri, the smallest species of the Arabian radiation, using an unprecedented sampling across its entire distribution range and an integrative approach combining morphological, macroecological and multilocus molecular data with the objective of clarifying its systematics and phylogeography. The results support the presence of two allopatric species within A. gallagheri that split approximately 6 Ma. The newly discovered species is endemic to the Eastern Hajars and is described herein mainly on the basis of its smaller size and high genetic divergence from A. gallagheri. The molecular analyses also uncovered remarkable levels of genetic diversity within both species. The present study highlights the diversity of the genus Asaccus in south-east Arabia and stresses its relevance from a conservation point of view.

Key words: Arabia, biogeography, endemicity, geckos, Hajar Mountains, hypervolumes, species delimitation, taxonomy

Fig. 3. View of the type locality and general appearance in life of Asaccus arnoldi sp. nov.
1) Holotype of A. arnoldi sp. nov. (male; voucher code BMNH.2008.961);
2) Rocky sides of Wadi Bani Khalid in 2016;
3) Female (above) and male (below) A. arnoldi sp. nov. with the characteristic dimorphic tail colouration.

All photographs taken by Salvador Carranza.

Asaccus Dixon and Anderson, 1973
Asaccus arnoldi sp. nov.

Asaccus arnoldi sp. nov.

Etymology. The species epithet ‘arnoldi’ is a genitive Latin noun to honour the British herpetologist, Dr E.Nicholas Arnold, for his life-long dedication and contribution to Arabian herpetology, including the description of the little-known gecko Asaccus gallagheri 45 years ago.  

Marc Simó-Riudalbas, Pedro Tarroso, Theodore Papenfuss, Thuraya Al-Sariri and Salvador Carranza. 2018. Systematics, Biogeography and Evolution of Asaccus gallagheri (Squamata, Phyllodactylidae) with the Description of A New Endemic Species from Oman. Systematics and Biodiversity.  DOI: 10.1080/14772000.2017.1403496

 ResearchGate.net/publication/321831031_Systematics_biogeography_and_evolution_of_Asaccus_gallagheri_Squamata_Phyllodactylidae_with_the_description_of_a_new_endemic_species_from_Oman
facebook.com/MarcSimoRiudalbas/posts/10214933978605446

    

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

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او

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شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.