Batillipes pennaki Marcus, 1946 (Arthrotardigrada: Batillipedidae): deciphering a species complex
| Autor: | Paulo Fontoura, Erika S. Santos, Puri Veiga, Clélia M. C. da Rocha, Marcos Rubal, Paul J. Bartels |
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| Rok vydání: | 2019 |
| Předmět: |
Mediterranean climate
Morphology Species complex Meiobenthos Biogeography Meiofauna Population Biology Marine heterotardigrades Pseudocryptic species Tardigrada Animals education Atlantic Ocean Ecology Evolution Behavior and Systematics Taxonomy education.field_of_study biology.organism_classification Discriminant analysis Phenotype Evolutionary biology Animal Science and Zoology Taxonomy (biology) Batillipes pennaki Tardigrade |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 1175-5334 |
| Popis: | Batillipes pennaki has been considered a common and a cosmopolitan marine tardigrade species. However, the original diagnosis of this species is very incomplete, and consequently there is a high probability of incorrect records. Therefore, a comparative analysis of quantitative and qualitative morphological characters among eight different populations from the Atlantic basin was done in this study to investigate if B. pennaki is a complex of similar species, each with a restricted distribution range. The result of discriminant analyses showed clear morphometric differences between populations that were arranged into three main groups, distinguishing Western Atlantic populations, Eastern Atlantic populations and a Mediterranean population. Furthermore, the result of analyses of morphological structures revealed peculiarities of some traits with taxonomic relevance, such as leg IV sensory organs and primary clavae, consistent with the clusters revealed by quantitative data, allowing us to distinguish three different pseudocryptic species and supporting the hypothesis that B. pennaki is a species complex. Fundação para a Ciência e Tecnologia - FCT; FEDER; CAPES info:eu-repo/semantics/acceptedVersion |
| Databáze: | OpenAIRE |
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