دورية أكاديمية
Cryptic species diversity in the Hypsolebias magnificus complex, a clade of endangered seasonal killifishes from the São Francisco River basin, Brazilian Caatinga (Cyprinodontiformes, Aplocheilidae)
| العنوان: | Cryptic species diversity in the Hypsolebias magnificus complex, a clade of endangered seasonal killifishes from the São Francisco River basin, Brazilian Caatinga (Cyprinodontiformes, Aplocheilidae) |
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| المؤلفون: | Wilson J. E. M. Costa, Pedro F. Amorim, José Leonardo O. Mattos |
| المصدر: | ZooKeys, Vol 777, Iss , Pp 141-158 (2018) |
| بيانات النشر: | Pensoft Publishers, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Zoology |
| مصطلحات موضوعية: | Zoology, QL1-991 |
| الوصف: | A great diversity of animal species adapted to life in the semi-arid Caatinga of northeastern Brazil, including seasonal killifishes, has been reported in the last three decades. More recently, field and molecular data have shown a high occurrence of cryptic species. The killifish group herein analysed, the Hypsolebias magnificus species complex, is endemic to the middle and southern portion of the Caatinga, occupying about 120 km along the floodplains of the middle São Francisco River and some adjacent tributaries. Species of this complex are rare and presently considered threatened with extinction, being uniquely found in pools protected by trees and bushes. Single-locus delimitation methods were used to test species limits of populations displaying different colour patterns along the whole distribution of the complex. All analyses consistently supported the three nominal species and two new, herein described: H. gardneri Costa, sp. n., from the floodplains of the middle São Francisco River and H. hamadryades Costa, sp. n., from the Gorotuba River floodplains. The phylogenetic analysis highly supports H. hamadryades as sister to a clade comprising H. gardneri and H. harmonicus. Our field observations suggest that H. hamadryades is a miniature species. This study indicates that the H. magnificus complex comprises cryptic species apparently endemic to small areas and extremely vulnerable to environmental changes, deserving high concern. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1313-2970 1313-2989 |
| Relation: | https://zookeys.pensoft.net/articles.php?id=25058; https://zookeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=25058; https://zookeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_xml&item_id=25058; https://doaj.org/toc/1313-2989; https://doaj.org/toc/1313-2970 |
| DOI: | 10.3897/zookeys.777.25058 |
| URL الوصول: | https://doaj.org/article/eaf40ff0f9a7486c9b910be22cd1945c |
| رقم الأكسشن: | edsdoj.f40ff0f9a7486c9b910be22cd1945c |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 13132970 13132989 |
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| DOI: | 10.3897/zookeys.777.25058 |