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      Scorpions from Ceará State, Brazil: Distribution and ecological comments Translated title: Escorpiones del estado de Ceará, Brasil: distribución y comentarios ecológicos

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          Abstract

          Abstract Scorpions are venomous synanthropic arachnids, in 2019 they were responsible for more than 37000 cases of envenomation in the state of Ceará, Northeastern Brazil. To update the knowledge about the scorpiofauna in Ceará, a distribution list of scorpions collected/received by municipal agents of the Health Surveillance Service was performed in 165 municipalities (89%) of Ceará (2018 - 2019) and deposited in the Dr. Thomaz Corrêa Aragão Entomology Laboratory scientific collection, including species distribution maps and ecological data. This study included a total of 999 scorpions from two families (Buthidae and Bothriuridae) and eleven species. The most abundant species were: Tityus stigmurus (40.1%), Jaguajir rochae (37.2%), Bothriurus asper (8.3%) and Bothriurus rochai (6.7%), mainly inhabiting municipalities in the Caatinga biome. The first record of Tityus confluens and Tityus maranhensis in the Sobral mesoregion is herein presented, expanding the distribution of these species in Brazil.

          Translated abstract

          Resumen Los escorpiones son arácnidos sinantrópicos venenosos; durante el año 2019 fueron responsables de más de 37000 casos de envenenamiento en el estado de Ceará, noreste de Brasil. Para actualizar el conocimiento sobre la escorpiónofauna en Ceará, se realizó una lista de distribución de escorpiones recolectados / recibidos em las agencias municipales del Servicio de Vigilancia de Salud de 165 municipios (89%) de Ceará (2018 - 2019), y depositados en la colección científica de Entomología del laboratorio Dr. Thomaz Corrêa Aragão, junto con mapas de distribución de especies y datos ecológicos. Este estudio incluyó un total de 999 escorpiones pertenecientes a dos familias (Buthidae y Bothriuridae) y once especies. Entre ellos, los más abundantes fueron: Tityus stigmurus (40.1%), Jaguajir rochae (37.2%), Bothriurus asper (8.3%) y Bothriurus rochai (6.7%), que habitan principalmente municipios en el bioma Caatinga. Aquí se presenta el primer registro de Tityus confluens y Tityus maranhensis en la mesorregión de Sobral, ampliando la distribución de estas especies en Brasil.

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              Deep diversification and long-term persistence in the South American 'dry diagonal': integrating continent-wide phylogeography and distribution modeling of geckos.

              The relative influence of Neogene geomorphological events and Quaternary climatic changes as causal mechanisms on Neotropical diversification remains largely speculative, as most divergence timing inferences are based on a single locus and have limited taxonomic or geographic sampling. To investigate these influences, we use a multilocus (two mitochondrial and 11 nuclear genes) range-wide sampling of Phyllopezus pollicaris, a gecko complex widely distributed across the poorly studied South American 'dry diagonal' biomes. Our approach couples traditional and model-based phylogeography with geospatial methods, and demonstrates Miocene diversification and limited influence of Pleistocene climatic fluctuations on P. pollicaris. Phylogeographic structure and distribution models highlight that persistence across multiple isolated regions shaped the diversification of this species complex. Approximate Bayesian computation supports hypotheses of allopatric and ecological/sympatric speciation between lineages that largely coincide with genetic clusters associated with Chaco, Cerrado, and Caatinga, standing for complex diversification between the 'dry diagonal' biomes. We recover extremely high genetic diversity and suggest that eight well-supported clades may be valid species, with direct implications for taxonomy and conservation assessments. These patterns exemplify how low-vagility species complexes, characterized by strong genetic structure and pre-Pleistocene divergence histories, represent ideal radiations to investigate broad biogeographic histories of associated biomes. © 2012 The Author(s). Evolution© 2012 The Society for the Study of Evolution.
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                Author and article information

                Journal
                rpb
                Revista Peruana de Biología
                Rev. peru biol.
                Universidad Nacional Mayor de San Marcos. Facultad de Ciencias Biológicas (Lima, , Peru )
                1727-9933
                January 2022
                : 29
                : 1
                : e21205
                Affiliations
                [1] Cruz das Almas Bahia orgnameUniversidade Federal do Recôncavo da Bahia orgdiv1Centro de Ciências Agrárias, Ambientais e Biológicas Brazil
                [2] orgnameCoodenadoria de Promoção e Proteção à Saúde/ Secretaria de Saúde do Ceará orgdiv1Núcleo de Vigilância Epidemiológica Brazil relrisondias@ 123456gmail.com
                Article
                S1727-99332022000100005 S1727-9933(22)02900100005
                10.15381/rpb.v29i1.21205
                c27c8d45-0568-4a0d-b6fe-034fabfca198

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 19 September 2021
                : 27 January 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 76, Pages: 0
                Product

                SciELO Peru

                Categories
                Original articles

                Tityus,Medio Semiárido,Caatinga,Northeast,semiarid environment,Noreste

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