Galictis cuja (Mammalia): an update of current knowledge and geographic distribution

Poo-Muñoz, Daniela A.; Escobar, Luis E.; Peterson, A. Townsend; Astorga, Francisca; Organ, John F.; Medina-Vogel, Gonzalo

doi:10.1590/1678-476620141043341346

Cited by 27 publications

(18 citation statements)

References 36 publications

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“…Several recent contributions showed important impacts of selection of M extent on the model output, thus showing that results of ecological niche models are scale dependent 34,37 . Some methods for a delimitation of model calibration areas M include consideration of biomes where the species occur 23 , dispersal estimates from the invasion process [38][39][40] , dispersal potential in the native range based on occurrences 41 , and areas defined arbitrarily for exploratory analyses of poorly known-species 42 . Thus, selection of the M hypothesis should be supported by the data or biogeographic literature on the species, instead of using administrative boundaries.…”

Section: Discussionmentioning

confidence: 99%

Accessible areas in ecological niche comparisons of invasive species: Recognized but still overlooked

Qiao

Escobar

Peterson

2017

Sci Rep

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Understanding biological invasions is crucial for their control and prevention. Specially, establishing whether invasive species operate within the constraint of conservative ecological niches, or if niche shifts occur at all commonly as part of the invasion process, is indispensable to identifying and anticipating potential areas of invasion. Ecological niche modeling (ENM) has been used to address such questions, but improvements and debate in study design, model evaluation, and methods are still needed to mature this field. We reanalyze data for Gray Squirrels (Sciurus carolinensis), native to North America, but invasive in Europe. Our main finding was that, when the analysis extent is established carefully based on analogous sets of environmental conditions, all evidence of niche shifts disappears, suggesting that previous reports of niche shifts for this species are artifacts of methods and interpretation, rather than biological reality. Niche conservatism should be tested only within appropriate, similar, environmental spaces that are accessible to both species or populations being compared, thus avoiding model extrapolation related to model transfers. Testing for environmental similarity between native and invaded areas is critical to identifying niche shifts during species invasion robustly, but also in applications of ENM to understanding temporal dimensions of niche dynamics.

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Section: Discussionmentioning

confidence: 99%

Accessible areas in ecological niche comparisons of invasive species: Recognized but still overlooked

Qiao

Escobar

Peterson

2017

Sci Rep

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“…Those species never occurs in sympatry; G. cuja are more frequently found in drier and open areas from the southern to central South America, while G. vittata inhabits humid evergreen forests from northern South America to Central America. Thus, they are good bioindicators for Brazil (Bornholdt 2012;Muñoz et al 2014;Tarifa 2003a, 2003b). Assuming that the environmental requirements of each of Galictis species today were the same of the past, thus the surrounding past environment of the fossiliferous localities, where each of the species are record, should have similar currently environmental conditions.…”

Section: Methodsmentioning

confidence: 99%

Diversity and paleoenviromental significance of Brazilian fossil Galictis (Carnivora: Mustelidae)

2015

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The evolutionary history of the genus Galictis in South America probably begins after the Great American Biotic Interchange. Two species are recognised: Galictis vittata and Galictis cuja. The latter are more frequently found in open areas in southern South America and the first occurs in humid forests from northern South America to Central America. Apparently, they do not occur in sympatry. Both are differentiate by the presence of a metaconid in the first inferior molar of G. vittata and for its bigger size when compared to G. cuja. The fossil record of Galictis is scarce, G. cuja is known by few specimens from Argentina, Chile and Brazil; G. vittata have only one record from Southern Brazil. The specimens related to this record were collected by Peter Lund and are housed at the Statens Naturhistoriske Museum. However, the specimens published by Lund are not fossils. Thus, it is presented here other unpublished specimens collected by Lund and housed at the same museum that we recognise as the first G. vittata fossils. Additionally, it is described here the first fossil record for G. cuja from the late Pleistocene of Brazil -an almost complete mandible recovered from sedimentary deposits from Central Brazil.

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“…Then, for each species, SDMs with the selected parametrization were used to implement spatial projections of environmental suitability (using all occurrence data) along the geographical area inside an estimated accessible area. Following other authors [51], we hypothesized that the accessible area for one species is that within the minimum convex polygon described by its occurrence points in the geographical area plus a buffer equal to the mean distance between each occurrence point and the centroid of the set of points. Finally, SDMs' projections were converted in binary maps (0=non-habitat; 1=suitable habitat) using species specific threshold based on omission error [45].…”

Section: Models Of Species Distributionmentioning

confidence: 99%

Influence of human population density on spatial distribution patterns of environmental suitability for triatomine vectors of Chagas disease

Eduardo

Santos

Rebouças

et al. 2019

Preprint

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Previous work on Chagas Disease disease at large spatial scales has not explored how interaction with humans can affect projections for geographical distribution of environmental suitability of vector species. Here, we compare niche-based species distribution models with climatic variables as predictors (SDM clim ) and with climatic variables + human population density (SDM Human ). Our results show that accounting for human population density helps refine the models to finer geographical scales. Also, different spatial patterns of accumulated environmental suitability were obtained by SDM clim and SDM Human . Moreover, projections were more accurate for SDM Human than for SDM clim . Our results show that considering human populations in SDMs for epidemiologically relevant triatomiane species can improve our understanding of macroecology and biogeography of environmental suitability for vectors of Chagas disease.

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Galictis cuja (Mammalia): an update of current knowledge and geographic distribution

Cited by 27 publications

References 36 publications

Accessible areas in ecological niche comparisons of invasive species: Recognized but still overlooked

Accessible areas in ecological niche comparisons of invasive species: Recognized but still overlooked

Diversity and paleoenviromental significance of Brazilian fossil Galictis (Carnivora: Mustelidae)

Influence of human population density on spatial distribution patterns of environmental suitability for triatomine vectors of Chagas disease

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