Review of chelid and emydid turtle distributions in southern South America with emphasis on extralimital populations and new records for Argentina

Semeñiuk, María Belén; Cassano, Maria; Alcalde, Leandro; Leynaud, Gerardo C.; Moreno, Liliana

doi:10.33256/hj29.4.219229

Cited by 6 publications

(15 citation statements)

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“…In the cases of turtles, they could be arriving from the stream Arroyo Tapalqué, where at least two specimens were collected (MACN-2239;MACN-785). We also consider the presence of these turtles could be associated with human translocation events, since they are out of the core distribution (Sánchez et al 2019).…”

Section: Discussionmentioning

confidence: 99%

An annotated list of the reptiles of the highland grassland of Tandilia Mountains, Argentina

Vera¹,

Pietro²,

Tettamanti³

et al. 2021

NBC

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The study of biodiversity is a fundamental step to develop conservation strategies. Reptile populations are immersed in a global crisis, due to anthropic disturbances. Almost the entire Pampa ecoregion in Argentina was modified for agricultural and livestock activities, the only remnants of mountain native grasslands in Buenos Aires province being the Tandilia and Ventania mountain systems. Ventania reptiles have been exhaustively researched in last years, while Tandilia counts with fewer studies. We presented an actualized reptiles list of the Tandilia Mountain System. We used five data sources to collect presence records: literature, fieldwork, museum collection, citizen science, and a online database. The composition of reptiles from the Tandilia Mountain range includes 26 species in 12 families. Due to the presence of several endemic reptiles, and the representativeness of more than half of the reptiles of Pampa Ecoregion, Tandilia would be useful to determine conservation priority areas to conserve the native grassland and their reptile fauna.

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Section: Discussionmentioning

confidence: 99%

An annotated list of the reptiles of the highland grassland of Tandilia Mountains, Argentina

Vera¹,

Pietro²,

Tettamanti³

et al. 2021

NBC

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“…Multiple Correspondence Analysis was applied to elucidate the relationship among the number of turtles with the variables stream margin, stream section, substrate type, year season, size class and sex. In order to compare with previous works on the species we used five size classes (SC) based on SCL (see Semeñiuk et al 2019). A factorial analysis of variance (ANOVA) (Zar 1999) was run to evaluate effects of stream sections, stream margins and substrate types (factors) in the number of turtles caught (dependent variable).…”

Section: Discussionmentioning

confidence: 99%

“…The impact of urbanization on several turtle species has been reported by many authors (e.g., Ner and Burke 2008;Plummer and Mills 2008;De Lathouder et al 2009;Rees et al 2009;Eskew et al 2010a, b;Roe et al 2011;Sterrett et al 2011;Hill and Vodopich 2013;Stokeld et al 2014;Elston et al 2016;Ferronato et al 2016Ferronato et al , 2017Santoro 2017;Bowne et al 2018;Dupuis-Desormeaux et al 2018;Semeñiuk et al 2019;Vanek and Glowacki 2019). Many of them have demonstrated that turtle populations have a neutral, and even positive, response to urban impacts according the degree of habitat modification (Plummer and Mills 2008;Eskew et al 2010a, b;Roe et al 2011;Stokeld et al 2014;Ferronato et al 2017;Dupuis-Desormeaux et al 2018;Semeñiuk et al 2019). However, Eskew et al (2010b) emphasize that there may be a lag period between the beginning of human disturbance and its effect on populations.…”

Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

“…The South American snake-necked turtle Hydromedusa tectifera is widely distributed through Uruguay, southeastern Brazil, eastern Paraguay, and northeastern and central Argentina (Sánchez et al 2019). In a recent paper, Semeñiuk et al (2019), demonstrated that key population parameters of H. tectifera are not impacted by the moderate suburban settlement (La Plata city, eastern Argentina). In this work some aspects of habitat use in that population of the Rodriguez stream are further studied by (1) describing the type of underwater refuges use by turtles, (2) analyzing how these refuges are used in different stream sections, stream margins, year season, size class and sex of the individuals, and (3) the evaluation of recurrence patterns and aggregative use of refuges.…”

Section: Introductionmentioning

confidence: 99%

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Where are the turtles when they are not? Underwater refuges used by Hydromedusa tectifera COPE, 1869 in a suburban stream

et al. 2020

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Habitat requirements of Hydromedusa tectifera from an urban impacted stream from the Buenos Aires province, the Rodriguez stream, are here studied. We describe the type of underwater refuges, how they are used in different stream sections, stream margins, year season, size class and sex of the individuals, and analyze patterns of recurrence and aggregative use of refuges. Fieldwork was carried out from March 2017 to January 2018. Turtles were caught manually recording the following variables: site, transect and margin, sex, straight carapace length, and weight. Substrate types are differently used according to stream section, stream margin, year season and size class of individuals, but no difference was found between sexes. In the whole stream, most used refuges were the hollows on the margins (55.05%), followed by marginal aquatic vegetation (19.27%). Turtles of all class sizes and both sexes refuge into hollows on the stream margins. Despite different microhabitats provide refuge to turtles during all year seasons, hollows are the most important refuge during extreme cold and extreme hot seasons. In addition, turtle recaptures evidence a recurrence and aggregative pattern in the use of refuges. This information provides insight into the key aspects of the microhabitat requirements of the species and will be certainly useful in mitigating and preventing negative effects of the current stream management policies. It is worth highlighting the need to keep the stream margins unaltered to favor the presence of turtles in urban environments.

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Gastrointestinal helminths associated with three species of freshwater turtles in the Pampa biome, southern Brazil

et al. 2021

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Review of chelid and emydid turtle distributions in southern South America with emphasis on extralimital populations and new records for Argentina

Cited by 6 publications

References 0 publications

An annotated list of the reptiles of the highland grassland of Tandilia Mountains, Argentina

An annotated list of the reptiles of the highland grassland of Tandilia Mountains, Argentina

Where are the turtles when they are not? Underwater refuges used by Hydromedusa tectifera COPE, 1869 in a suburban stream

Gastrointestinal helminths associated with three species of freshwater turtles in the Pampa biome, southern Brazil

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