This monotypic genus ranges between about 30°S and 34°S in southern South America, with the singl... more This monotypic genus ranges between about 30°S and 34°S in southern South America, with the single species Salinomys delicatus having both a restricted and patchy distribution, with local populations of small size. Only a few studies of the ecol ogy of the species have been published since its description (Braun and Mares 1995).Fil: Lanzone, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; ArgentinaFil: Braun, Janet K.. Oklahoma State University; Estados Unido
En 2021, Jayat et al. propusimos una nueva especie de roedor sigmodontino, nombrada Phyllotis peh... more En 2021, Jayat et al. propusimos una nueva especie de roedor sigmodontino, nombrada Phyllotis pehuenche, para las poblaciones del complejo de especies de Phyllotis xanthopygus del sudoeste de la provincia de Mendoza y el oeste de la provincia de Neuquén, Argentina. La descripción formal de la especie, publicada en un material suplementario electrónico modificable, no cumple con los requerimientos establecidos en la enmienda sobre publicaciones electrónicas (ICZN 2012) de la Cuarta Edición del Código Internacional de Nomenclatura Zoológica (ICZN 1999), haciendo que el nombre no esté disponible. El objetivo de esta nota es cumplir con los requerimientos del código y hacer el nombre disponible. Aquí ofrecemos una versión resumida de la descripción original de esta especie. En esta nota, ofrecemos un tratamiento taxonómico para P. pehuenche, incluyendo su sinonimia, localidad tipo, holotipo y paratipos, proveyendo la etimología del epíteto específico, y ofreciendo una diagnosis para...
Members of the genus Eligmodontia, commonly known as gerbil mice, range from southern Peru southw... more Members of the genus Eligmodontia, commonly known as gerbil mice, range from southern Peru southward to southernmost Argentina and mainland Chile. This área embraces arid and semi- arid habitats linked to the Andean landscape, from sea level in the southern part of the distribution to above 4,000 m in the north. These rodents are highly desert adapted, and exhibit anatomical, physiological, and behavior specializations that enable their xeric existence (Mares 1977b; G. B. Diaz and Ojeda 1999; Giannoni et al. 2001)Fil: Lanzone, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; ArgentinaFil: Braun, Janet K.. Oklahoma State University; Estados UnidosFil: Patton, James L.. University of California; Estados UnidosFil: Pardiñas, Tiberio Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Diversidad y Evolución Austral; Argentin
Based on previously published molecular (mitochondrial) and herein provided morphological (qualit... more Based on previously published molecular (mitochondrial) and herein provided morphological (qualitative and quantitative data) evidence, we describe a new species of leaf-eared mouse of the genus Phyllotis. The new species is morphometrically distinct when compared with other phylogenetically or geographically close species of Phyllotis, showing several quantitative differences in their external and craniodental characters (e.g., proportionally broader nasals and interorbital region, and proportionally smaller tympanic bullae). The new species is endemic to central Argentina, occurring on rocky grasslands at elevations of 650–2,800 m a.s.l. This is the only species of Phyllotis inhabiting the Central Sierras, a mountain system of medium elevation, isolated from the Andes by low elevation arid and semiarid environments.
The genus Euneomys is mostly distributed in the open environments of the central and southern And... more The genus Euneomys is mostly distributed in the open environments of the central and southern Andes, adjacent Patagonian steppes of Argentina and Chile, and in several islands of the Tierra del Fuego Archipelago. This genus includes three living species: E. chinchilloides, E. fossor, and E. mordax. Euneomys fossor is a poorly known species, with an uncertain geographic provenance and known from a single specimen, whose distinction from the other species of the genus has not been accurately assessed. Here, using qualitative and quantitative morphological evidence, plus published information about karyotypes and genetic variation, we evaluate the taxonomic status of E. fossor and E. noei, a nominal form usually considered a synonym of E. mordax. Based on multivariate analysis of cranial measurements and morphological discrete traits, we recognize two main morphotypes within Euneomys, one referable to E. chinchilloides (with dabbenei, petersoni, and ultimus as synonyms), and another in...
FIGURE 3. Specimen scores of adult individuals (ages 3–5) of Phyllotis (N = 336) for: a) Shape va... more FIGURE 3. Specimen scores of adult individuals (ages 3–5) of Phyllotis (N = 336) for: a) Shape variable principal components 1 and 2 (light green = busw; dark green = coce and slno; orange = menw, mewe and nqne; blue = mesw, nqnw, nqso; red = chce, chnc, chse, chsw, chew, rnsc, scne, scnw, scwc); b) Shape variable canonical variates 1 and 2 extracted from 18-group discriminant function analysis based on samples grouped by its geographical origin (colors as in A); c) Shape variable principal components 1 and 2 (light green = bona; dark green = cent; yellow = nort; blue = west; red = sout); and ds) Shape variable canonical variates 1 and 2 extracted from 5-group discriminant function analysis based on samples grouped by its membership to mitochondrial lineages (colors as in C). For the acronyms, see Materials and Methods section.
FIGURE 1. a) Map of southern South America indicating the placement of the collection localities ... more FIGURE 1. a) Map of southern South America indicating the placement of the collection localities of the specimens of Phyllotis studied in this work (see Appendix 1 for a detail); type localities of nominal forms discussed in the text were indicated by red stars. b) Geographical groups recognized in this study; different colors correspond to the mitochondrial lineages documented by Riverón (2011) as follow: light green = bona (P. bonariensis); dark green = central Argentina; orange = northcentral Argentina; blue = west-central Argentina; red = southern Argentina and Chile. For the acronyms, see Materials and Methods section. Specimens from busw correspond to P. bonariensis, while the remaining samples could be referred to the current concept of P. xanthopygus; individuals from coce, menw, mese, meso, mesw, nqne, nqnw and slno are usually included under P. x. vaccarum, while those of chnc, chwe, chce, chse, chsw, chsc, nqso, rnce, rnsc, scne, scwc, and scnw are traditionally assigned ...
FIGURE 2. Specimen scores of adult individuals (ages 3–5) of Phyllotis (N = 336) for: a) Size dep... more FIGURE 2. Specimen scores of adult individuals (ages 3–5) of Phyllotis (N = 336) for: a) Size dependent principal components 1 and 2 (light green = busw; dark green = coce and slno; orange = menw, mewe and nqne; blue = mesw, nqnw, nqso; red = chce, chnc, chsc, chse, chsw, chew, rnsc, scne, scnw, scwc); b) Size dependent canonical variates 1 and 2 extracted from 18-group discriminant function analysis based on samples grouped by its geographical origin (colors as in A); c) Size dependent principal components 1 and 2 (light green = bona; dark green = cent; yellow = nort; blue = west; red = sout); and d) Size dependent canonical variates 1 and 2 extracted from 5-group discriminant function analysis based on samples grouped by its membership to mitochondrial lineages (colors as in C). For the acronyms, see Materials and Methods section.
This monotypic genus ranges between about 30°S and 34°S in southern South America, with the singl... more This monotypic genus ranges between about 30°S and 34°S in southern South America, with the single species Salinomys delicatus having both a restricted and patchy distribution, with local populations of small size. Only a few studies of the ecol ogy of the species have been published since its description (Braun and Mares 1995).Fil: Lanzone, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; ArgentinaFil: Braun, Janet K.. Oklahoma State University; Estados Unido
En 2021, Jayat et al. propusimos una nueva especie de roedor sigmodontino, nombrada Phyllotis peh... more En 2021, Jayat et al. propusimos una nueva especie de roedor sigmodontino, nombrada Phyllotis pehuenche, para las poblaciones del complejo de especies de Phyllotis xanthopygus del sudoeste de la provincia de Mendoza y el oeste de la provincia de Neuquén, Argentina. La descripción formal de la especie, publicada en un material suplementario electrónico modificable, no cumple con los requerimientos establecidos en la enmienda sobre publicaciones electrónicas (ICZN 2012) de la Cuarta Edición del Código Internacional de Nomenclatura Zoológica (ICZN 1999), haciendo que el nombre no esté disponible. El objetivo de esta nota es cumplir con los requerimientos del código y hacer el nombre disponible. Aquí ofrecemos una versión resumida de la descripción original de esta especie. En esta nota, ofrecemos un tratamiento taxonómico para P. pehuenche, incluyendo su sinonimia, localidad tipo, holotipo y paratipos, proveyendo la etimología del epíteto específico, y ofreciendo una diagnosis para...
Members of the genus Eligmodontia, commonly known as gerbil mice, range from southern Peru southw... more Members of the genus Eligmodontia, commonly known as gerbil mice, range from southern Peru southward to southernmost Argentina and mainland Chile. This área embraces arid and semi- arid habitats linked to the Andean landscape, from sea level in the southern part of the distribution to above 4,000 m in the north. These rodents are highly desert adapted, and exhibit anatomical, physiological, and behavior specializations that enable their xeric existence (Mares 1977b; G. B. Diaz and Ojeda 1999; Giannoni et al. 2001)Fil: Lanzone, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; ArgentinaFil: Braun, Janet K.. Oklahoma State University; Estados UnidosFil: Patton, James L.. University of California; Estados UnidosFil: Pardiñas, Tiberio Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Diversidad y Evolución Austral; Argentin
Based on previously published molecular (mitochondrial) and herein provided morphological (qualit... more Based on previously published molecular (mitochondrial) and herein provided morphological (qualitative and quantitative data) evidence, we describe a new species of leaf-eared mouse of the genus Phyllotis. The new species is morphometrically distinct when compared with other phylogenetically or geographically close species of Phyllotis, showing several quantitative differences in their external and craniodental characters (e.g., proportionally broader nasals and interorbital region, and proportionally smaller tympanic bullae). The new species is endemic to central Argentina, occurring on rocky grasslands at elevations of 650–2,800 m a.s.l. This is the only species of Phyllotis inhabiting the Central Sierras, a mountain system of medium elevation, isolated from the Andes by low elevation arid and semiarid environments.
The genus Euneomys is mostly distributed in the open environments of the central and southern And... more The genus Euneomys is mostly distributed in the open environments of the central and southern Andes, adjacent Patagonian steppes of Argentina and Chile, and in several islands of the Tierra del Fuego Archipelago. This genus includes three living species: E. chinchilloides, E. fossor, and E. mordax. Euneomys fossor is a poorly known species, with an uncertain geographic provenance and known from a single specimen, whose distinction from the other species of the genus has not been accurately assessed. Here, using qualitative and quantitative morphological evidence, plus published information about karyotypes and genetic variation, we evaluate the taxonomic status of E. fossor and E. noei, a nominal form usually considered a synonym of E. mordax. Based on multivariate analysis of cranial measurements and morphological discrete traits, we recognize two main morphotypes within Euneomys, one referable to E. chinchilloides (with dabbenei, petersoni, and ultimus as synonyms), and another in...
FIGURE 3. Specimen scores of adult individuals (ages 3–5) of Phyllotis (N = 336) for: a) Shape va... more FIGURE 3. Specimen scores of adult individuals (ages 3–5) of Phyllotis (N = 336) for: a) Shape variable principal components 1 and 2 (light green = busw; dark green = coce and slno; orange = menw, mewe and nqne; blue = mesw, nqnw, nqso; red = chce, chnc, chse, chsw, chew, rnsc, scne, scnw, scwc); b) Shape variable canonical variates 1 and 2 extracted from 18-group discriminant function analysis based on samples grouped by its geographical origin (colors as in A); c) Shape variable principal components 1 and 2 (light green = bona; dark green = cent; yellow = nort; blue = west; red = sout); and ds) Shape variable canonical variates 1 and 2 extracted from 5-group discriminant function analysis based on samples grouped by its membership to mitochondrial lineages (colors as in C). For the acronyms, see Materials and Methods section.
FIGURE 1. a) Map of southern South America indicating the placement of the collection localities ... more FIGURE 1. a) Map of southern South America indicating the placement of the collection localities of the specimens of Phyllotis studied in this work (see Appendix 1 for a detail); type localities of nominal forms discussed in the text were indicated by red stars. b) Geographical groups recognized in this study; different colors correspond to the mitochondrial lineages documented by Riverón (2011) as follow: light green = bona (P. bonariensis); dark green = central Argentina; orange = northcentral Argentina; blue = west-central Argentina; red = southern Argentina and Chile. For the acronyms, see Materials and Methods section. Specimens from busw correspond to P. bonariensis, while the remaining samples could be referred to the current concept of P. xanthopygus; individuals from coce, menw, mese, meso, mesw, nqne, nqnw and slno are usually included under P. x. vaccarum, while those of chnc, chwe, chce, chse, chsw, chsc, nqso, rnce, rnsc, scne, scwc, and scnw are traditionally assigned ...
FIGURE 2. Specimen scores of adult individuals (ages 3–5) of Phyllotis (N = 336) for: a) Size dep... more FIGURE 2. Specimen scores of adult individuals (ages 3–5) of Phyllotis (N = 336) for: a) Size dependent principal components 1 and 2 (light green = busw; dark green = coce and slno; orange = menw, mewe and nqne; blue = mesw, nqnw, nqso; red = chce, chnc, chsc, chse, chsw, chew, rnsc, scne, scnw, scwc); b) Size dependent canonical variates 1 and 2 extracted from 18-group discriminant function analysis based on samples grouped by its geographical origin (colors as in A); c) Size dependent principal components 1 and 2 (light green = bona; dark green = cent; yellow = nort; blue = west; red = sout); and d) Size dependent canonical variates 1 and 2 extracted from 5-group discriminant function analysis based on samples grouped by its membership to mitochondrial lineages (colors as in C). For the acronyms, see Materials and Methods section.
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Papers by Cecilia Lanzone