Papers by Gonzalo A Camps
Intersecciones en Antropología, 2020
En este aporte interdisciplinario se desarrolla el concepto de modelos de distribución de especie... more En este aporte interdisciplinario se desarrolla el concepto de modelos de distribución de especies, sus implicancias y las estrategias utilizadas para inferirlos. Se los ejemplifica a partir de la aplicación de la
herramienta MaxEnt para modelar la distribución del árbol conocido como chañar (Geoffroea decorticans (Gillies ex Hook. & Arn.) Burkart) entre 4200 y 300 años AP. Finalmente, se plantean implicancias y potencialidades arqueológicas generadas a partir del uso del modelado de distribución para distintos sitios arqueológicos del área Sudcalchaquí, en los cuales se ha identificado el consumo de la especie durante
el primer milenio d.C.
Neotropical Dry Forests are important biodiversity hotspots characterized by intermediate to high... more Neotropical Dry Forests are important biodiversity hotspots characterized by intermediate to high levels of species richness and endemism. A possible explanation for these characteristics is that such forests have been less affected by drastic glacial impacts than other biomes. Using two approaches, geo-statistical phylogeography, based on two chloroplast markers, and multi-algorithm-based niche modelling, for the present and for the past, we explored if, during glacial periods, the geographical range of Bulnesia sarmientoi was stable or underwent expansions or retrac-tions in space and time and if there is a relationship among past climatic refugia, the current climatic optimum and genetic diversity. We estimated that B. sarmientoi would have diverged from other Bulnesia at the beginning of the Pliocene (5 Mya), with diversification of the current lineages occurring in the Pleistocene (1.4-1.1 Mya). Our results suggest that Dry Forests underwent population expansion events during the glacial periods, whereas they would have undergone population stasis during interglacial periods. Furthermore, we identified a putative refugial area in the Dry Chaco that has been climatically stable through time, consistent with the area of highest genetic diversity and with the spatial location of the climatic optimum of the focal species. ADDITIONAL KEYWORDS: arid environments-Bayesian diffusion phylogeography-climatic optimum-climatic centroid-Dry Chaco-landscape ecology-ecological niche modelling-endangered forest species-Quaternary climatic changes-Zygophyllaceae.
Neotropical Dry Forests are important biodiversity hotspots characterized by intermediate to high... more Neotropical Dry Forests are important biodiversity hotspots characterized by intermediate to high levels of species richness and endemism. A possible explanation for these characteristics is that such forests have been less affected by drastic glacial impacts than other biomes. Using two approaches, geo-statistical phylogeography, based on two chloroplast markers, and multi-algorithm-based niche modelling, for the present and for the past, we explored if, during glacial periods, the geographical range of Bulnesia sarmientoi was stable or underwent expansions or retrac-tions in space and time and if there is a relationship among past climatic refugia, the current climatic optimum and genetic diversity. We estimated that B. sarmientoi would have diverged from other Bulnesia at the beginning of the Pliocene (5 Mya), with diversification of the current lineages occurring in the Pleistocene (1.4–1.1 Mya). Our results suggest that Dry Forests underwent population expansion events during the glacial periods, whereas they would have undergone population stasis during interglacial periods. Furthermore, we identified a putative refugial area in the Dry Chaco that has been climatically stable through time, consistent with the area of highest genetic diversity and with the spatial location of the climatic optimum of the focal species.
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Papers by Gonzalo A Camps
herramienta MaxEnt para modelar la distribución del árbol conocido como chañar (Geoffroea decorticans (Gillies ex Hook. & Arn.) Burkart) entre 4200 y 300 años AP. Finalmente, se plantean implicancias y potencialidades arqueológicas generadas a partir del uso del modelado de distribución para distintos sitios arqueológicos del área Sudcalchaquí, en los cuales se ha identificado el consumo de la especie durante
el primer milenio d.C.
herramienta MaxEnt para modelar la distribución del árbol conocido como chañar (Geoffroea decorticans (Gillies ex Hook. & Arn.) Burkart) entre 4200 y 300 años AP. Finalmente, se plantean implicancias y potencialidades arqueológicas generadas a partir del uso del modelado de distribución para distintos sitios arqueológicos del área Sudcalchaquí, en los cuales se ha identificado el consumo de la especie durante
el primer milenio d.C.