Callithrix aurita: Occurrence, allochthonous species and landscape attributes

The buffy-tufted-ear marmoset (Callithrix aurita) is a small primate endemic to the Brazilian Atlantic Forest biome, and one of the 25 most endangered primates in the world, due to fragmentation, loss of habitat and invasion by allochthonous Callithrix species. Using occurrence data for C. aurita from published data papers, we employed model selection using Akaike Information Criterion corrected for small samples and cumulative AICc weight (w+) to evaluate whether fragment size, distance to fragments with allochthonous species, altitude, connectivity, and surrounding matrices influence the occurrence of C. aurita within its distributional range. Distance to fragments with C. jacchus (w+ = 0.94) and non-vegetated areas (w+ = 0.59) correlated negatively with C. aurita occurrence. Conversely, the percentage of agriculture and pasture mosaic (w+ = 0.61) and the percentage of savanna formation (w+ = 0.59) in the surrounding matrix correlated positively with C. aurita occurrence. The findings..., The occurrence data was obtained by filtering 2 data papers:

Rosa, C.A., Ribeiro, B.R., Bejarano, V., Puertas, F.H., Bocchiglieri, A., Barbosa, A.L.S., Chiarello, A.G., Paglia, A.P., Pereira, A.A., Moreira, A.F.S., Souza, A.C., Pellegrin, A., Gatica, A., Medeiro, A.Z., Pereira, A.D., Braz, A.G., Yanosky, A., Valenzuela, A.E.J., ...Ribeiro, M.C. (2020). Neotropical alien mammals: a data set of occurrence and abundance of alien mammals in the Neotropics. Ecology, 101(11), e03115. https://doi.org/10.1002/ecy.3115

Culot, L., Pereira, L.A., Agostini, I., Almeida, M.A.B. de, Alves, R.S.C., Aximoff, I., Bager, A., Baldovino, M.C., Bella, T.R., Bicca-Marques, J.C., Braga, C., Brocardo, C.R., Campelo, A.K.N., Canale, G.R., Cardoso, J.C., Carrano, E., Casanova, D.C., Cassano, C.R., Castro, E., Cherem, J.J., …Galetti, M. (2019). Atlantic-Primates: a dataset of communities and occurrences of primates in the Atlantic Forests of South America. Ecology, 100(1), e02525. https://doi.org/10.1002/ecy.2..., The data is open using Excel or Libre office. To process the data you need to use: QGIS, Fragstats, and R software.