Data from: Landscape genetics of the nonnative red fox of California

Invasive mammalian carnivores contribute disproportionately to declines in global biodiversity. In California, nonnative red foxes (Vulpes vulpes) have significantly impacted endangered ground-nesting birds and native canids. These foxes derive primarily from captive-reared animals associated with the fur-farming industry. Over the past five decades, the cumulative area occupied by nonnative red fox increased to cover much of central and southern California. We used a landscape-genetic approach involving mitochondrial DNA (mtDNA) sequences and 13 microsatellites of 402 nonnative red foxes removed in predator control programs to investigate source populations, contemporary connectivity, and metapopulation dynamics. Both markers indicated high population structuring consistent with origins from multiple introductions and low subsequent gene flow. Landscape-genetic modeling indicated that population connectivity was especially low among coastal sampling sites surrounded by mountainous wildlands but somewhat higher through topographically flat, urban and agricultural landscapes. The genetic composition of populations tended to be stable for multiple generations, indicating a degree of demographic resilience to predator removal programs. However, in two sites where intensive predator control reduced fox abundance, we observed increases in immigration, suggesting potential for recolonization to counter eradication attempts. These findings, along with continued genetic monitoring, can help guide localized management of foxes by identifying points of introductions and routes of spread and evaluating the relative importance of reproduction and immigration in maintaining populations. More generally, the study illustrates the utility of a landscape-genetic approach for understanding invasion dynamics and metapopulation structure of one of the world's most destructive invasive mammals, the red fox

Landscape genetics of the nonnative red fox of California.

Invasive mammalian carnivores contribute disproportionately to declines in global biodiversity. In California, nonnative red foxes (Vulpes vulpes) have significantly impacted endangered ground-nesting birds and native canids. These foxes derive primarily from captive-reared animals associated with the fur-farming industry. Over the past five decades, the cumulative area occupied by nonnative red fox increased to cover much of central and southern California. We used a landscape-genetic approach involving mitochondrial DNA (mtDNA) sequences and 13 microsatellites of 402 nonnative red foxes removed in predator control programs to investigate source populations, contemporary connectivity, and metapopulation dynamics. Both markers indicated high population structuring consistent with origins from multiple introductions and low subsequent gene flow. Landscape-genetic modeling indicated that population connectivity was especially low among coastal sampling sites surrounded by mountainous wildlands but somewhat higher through topographically flat, urban and agricultural landscapes. The genetic composition of populations tended to be stable for multiple generations, indicating a degree of demographic resilience to predator removal programs. However, in two sites where intensive predator control reduced fox abundance, we observed increases in immigration, suggesting potential for recolonization to counter eradication attempts. These findings, along with continued genetic monitoring, can help guide localized management of foxes by identifying points of introductions and routes of spread and evaluating the relative importance of reproduction and immigration in maintaining populations. More generally, the study illustrates the utility of a landscape-genetic approach for understanding invasion dynamics and metapopulation structure of one of the world's most destructive invasive mammals, the red fox

DryadDatabaseAccessionFinal

Contains sample data and genetic data, including identifiers, museum accession Nos (where applicable), location, date, mtDNA haplotype names (identifiable in Genbank), alleles at 13 microsatellite loc

Appendix B. A series of maps showing the expansion of the collared lizard (Crotaphytus collaris collaris) populations from the three introduced glade populations to additional glades on Stegall, Mule, and Thorny Mountains, Missouri, USA.

A series of maps showing the expansion of the collared lizard (Crotaphytus collaris collaris) populations from the three introduced glade populations to additional glades on Stegall, Mule, and Thorny Mountains, Missouri, USA

Supplement 1. The estimated population sizes for each glade for every year of occupation on Stegall, Mule, and Thorny Mountains.

<h2>File List</h2><blockquote> <a href="Individual_Glade_Sizes.txt">Individual_Glade_Sizes.txt</a> – a tab delimited file containing the estimated population sizes</blockquote><h2>Description</h2><blockquote> <p>A file containing the estimated population sizes for each glade for every year of occupation on Stegall, Mule, and Thorny Mountains. In addition, the method of estimation as described in <a href="appendix-A.htm">Appendix A</a> is indicated, along with the observed number of lizards, the standard deviation of the estimate, and the estimated sample coverage when relevant.</p> <p>Checksum value for download verification is: b8e4a280baa52f5bcbcd5669e156d770 </p> </blockquote

Appendix A. Details of sampling protocols, derivation, and statistical comparison of the population size estimators, details of the exact tests used for hypothesis testing, and additional tables and figures referred to in the main text.

Details of sampling protocols, derivation, and statistical comparison of the population size estimators, details of the exact tests used for hypothesis testing, and additional tables and figures referred to in the main text

Data from: Implications of fidelity and philopatry for the population structure of female black-tailed deer

Site fidelity and philopatry are behavioral adaptations found in many species and their fitness benefits are well documented. The combined population level consequences of site fidelity and philopatry, however, have received little attention despite their importance for understanding spatial patterns in connectivity and population dynamics. We used an integrative approach to explore consequences of fidelity and philopatry on the fine-scale genetic structure of black-tailed deer (Odocoileus hemionus columbianus). We assessed fidelity to seasonal home ranges based on location data from 64 female deer fitted with global positioning system (GPS) collars between 2004 and 2013. We assessed philopatry from mitochondrial DNA (mtDNA) haplotypes using DNA extracted from 48 deer. Results based on location data revealed very small movements and seasonal home ranges together with high site fidelity. Fidelity improved survival; every 1 km increase in mean interlocation distances between consecutive summers increased the risk of mortality by 56.5%. Results from mtDNA sequencing revealed high genetic differentiation (FST > 0.30) and low haplotype sharing among geographic areas separated by as little as 4–10 km. The high genetic differentiation indicated multigenerational periods of philopatric behavior in the matrilineage of black-tailed deer. Combined these results suggest that site fidelity together with strong sex-biased philopatry can create marked short- and long-term demographic isolation and trap matriarchal units as a subset of the larger population with locally determined vital rates. Where such fine-scale population structuring as a consequence of fidelity and philopatry occurs, matrilineal groups might in some cases best serve as the basic units of conservation and management

Implications of fidelity and philopatry for the population structure of female black-tailed deer

No description supplie

Implications of fidelity and philopatry for the population structure of female black-tailed deer

No description supplie