@article {178,
	title = {Potential distribution of endangered Mexican golden trout (Oncorhynchus chrysogaster) in the Rio Sinaloa and Rio Culiacan basins (Sierra Madre Occidental) based on landscape characterization and species distribution models},
	journal = {Environmental Biology of Fishes},
	year = {2017},
	month = {2017/06/01/},
	pages = {1 - 13},
	abstract = {The Mexican Golden Trout (Oncorhynchus chrysogaster) is a threatened native species inhabiting three river basins in the Sierra Madre Occidental. Despite some efforts from science groups to obtain information about this trout, the Rio Sinaloa and Rio Culiacan basins, to the south, remain the least studied area, compared to the Rio Fuerte basin. To overcome this gap, a survey (2014 to 2015) was undertaken to obtain new records and confirm the presence for historic records in both watersheds. After filtering records for this species, eighteen locations were used to model potential distribution, using the GARP and MaxEnt, including landscape characterization based on hydrologic analysis and satellite imagery classification. Coincidence between models was >85\% for a potential distribution area of 4300 km2, defined by six bioclimatic and physiographic variables, with the hydrologic network covering 3000 km. To avoid overestimation, the final distribution area included only the 100 m fringe surrounding the drainage network and its associated landscape features. Jackknife resampling was used to validate both the models, successfully predicting more than 80\% of the locations (p < 0.001). The estimated area covers 275 km2, mainly defined by second- and third-order streams, at altitudes >2000 m, high water quality (transparent, dissolved oxygen >5 mg L-1; temperature < 26 {\textdegree}C), and was part of a matrix of undisturbed forests. This study provides new findings about this endangered species and new elements for designing appropriate monitoring programs supporting trout conservation and management.},
	isbn = {0378-1909, 1573-5133},
	url = {https://link-springer-com.ezproxy.lib.utexas.edu/article/10.1007/s10641-017-0624-z},
	author = {Ruiz-Luna, Arturo and Hern{\'a}ndez-Guzm{\'a}n, Rafael and Le{\'o}n, Francisco J. Garc{\'\i}a-De and Ram{\'\i}rez-Huerta, Alejandro L.}
}
@article {177,
	title = {The interplay of riverscape features and exotic introgression on the genetic structure of the Mexican golden trout (Oncorhynchus chrysogaster), a simulation approach},
	journal = {Journal of Biogeography},
	volume = {45},
	year = {2018},
	month = {2018///},
	pages = {1500 - 1514},
	abstract = {Aim We explored the factors between riverscape features and exotic introgression of cultured rainbow trout (Oncorhynchus mykiss) that drive the current genetic structure in the endemic Mexican golden trout (Oncorhynchus chrysogaster) using a riverscape genetics simulator. Location Sierra Madre Occidental, Northwest Mexico, North America. Methods We created a system model for Mexican golden trout to test various scenarios for the effect of riverscape resistance and rainbow trout introgression on the native genetic structure of the Mexican golden trout. Individual genotypes were used to initialize the model and were based upon empirical allele frequencies from three genetically and spatially distinct groups in the study area. The geographical location of the simulated populations was defined using a species distribution model. We included hypotheses for movement of riverine distance and riverscape resistance. We evaluated model performance by conducting population and landscape genetics analyses on the simulation outputs. Results The most plausible scenario included riverscape resistance without introgression, which presented a spatial genetic structure matching the observed riverscape genetic structure and fitting expected general life-history patterns for high elevation trout streams. In addition, temperature, precipitation, hydrology and topography were the most important variables influencing species occurrence and dispersal. Main conclusion This work presents one of the first empirically derived simulation studies of introgression. It highlights the importance of considering riverscape resistance (i.e. hydroclimatic and topographical gradient effects) in models of spatial genetic structure and introgression. Moreover, our modelling suggests that what we characterize as riverscape resistance is acting as a boundary against exotic introgression. The results of this study could help to develop management strategies that preserve native gene pools.},
	keywords = {CDMetaPOP, exotic trout, Mexican trout, Oncorhynchus chrysogaster, rainbow trout, riverscape genetics, species distribution modelling, Truchas Mexicanas},
	isbn = {1365-2699},
	url = {http://onlinelibrary.wiley.com/doi/abs/10.1111/jbi.13246},
	author = {Escalante, Marco Alejandro and Le{\'o}n, Francisco J. Garc{\'\i}a-De and Ruiz-Luna, Arturo and Landguth, Erin and Manel, St{\'e}phanie}
}
@article {158,
	title = {Genotyping-by-sequencing reveals the effects of riverscape, climate and interspecific introgression on the genetic diversity and local adaptation of the endangered Mexican golden trout (Oncorhynchus chrysogaster)},
	journal = {Conservation Genetics},
	year = {2020},
	month = {2020///},
	abstract = {How environmental and anthropogenic factors influence genetic variation and local adaptation is a central issue in evolutionary biology. The Mexican golden trout (Oncorhynchus chrysogaster), one of the southernmost native salmonid species in the world, is susceptible to climate change, habitat perturbations and the competition and hybridization with exotic rainbow trout (O. mykiss). The present study aimed for the first time to use genotyping-by-sequencing to explore the effect of genetic hybridization with O. mykiss and of riverscape and climatic variables on the genetic variation among O. chrysogaster populations. Genotyping-by-sequencing (GBS) was applied to generate 9767 single nucleotide polymorphisms (SNPs), genotyping 272 O. chrysogaster and O. mykiss. Population genomics analyses were combined with landscape ecology approaches into a riverine context (riverscape genetics). The clustering analyses detected seven different genetic groups (six for O. chrysogater and one for aquaculture O. mykiss) and a small amount of admixture between aquaculture and native trout with only two native genetic clusters showing exotic introgression. Latitude and precipitation of the driest month had a significant negative effect on genetic diversity and evidence of isolation by river resistance was detected, suggesting that the landscape heterogeneity was preventing trout dispersal, both for native and exotic individuals. Moreover, several outlier SNPs were identified as potentially implicated in local adaptation to local hydroclimatic variables. Overall, this study suggests that O. chrysogater may require conservation planning given (i) exotic introgression from O. mykiss locally threatening O. chrysogater genetic integrity, and (ii) putative local adaptation but low genetic diversity and hence probably reduced evolutionary potential especially in a climate change context.},
	isbn = {1566-0621},
	url = {10/gg6rgj},
	author = {Escalante, Marco A. and Perrier, Charles and Le{\'o}n, Francisco J. Garc{\'\i}a-De and Ruiz-Luna, Arturo and Ortega-Abboud, Enrique and Manel, St{\'e}phanie}
}
