Digitized Map of Biotic Communities for Plotting and Comparing Distributions of North American Animals

Brown, David E.; Unmack, Peter J.; Brennan, Thomas C.

doi:10.1894/0038-4909(2007)52[610:dmobcf]2.0.co;2

Cited by 27 publications

(24 citation statements)

References 18 publications

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“…The second goal was to refine our estimates of each species respective distributions, with an emphasis on demarcating subgroup boundaries (if present), as well as areas of transition and sympatry between species and lineages. These focal areas were predicted from the published distribution maps of the two morphospecies, and from arid habitat transition zones reported in broad biogeographic studies (e.g., Riddle and Hafner 2006b; Brown and Brennan ). In addition, we also collected qualitative data on the density and apparent continuity of local and regional scale distributions for each morphospecies.…”

Section: Methodsmentioning

confidence: 99%

Phylogeography ofPogonomyrmex barbatusandP. rugosusharvester ants with genetic and environmental caste determination

Mott

Gadau

Anderson

2015

Ecology and Evolution

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We present a phylogeographic study of at least six reproductively isolated lineages of new world harvester ants within the Pogonomyrmex barbatus and P. rugosus species group. The genetic and geographic relationships within this clade are complex: Four of the identified lineages show genetic caste determination (GCD) and are divided into two pairs. Each pair has evolved under a mutualistic system that necessitates sympatry. These paired lineages are dependent upon one another because their GCD requires interlineage matings for the production of F1 hybrid workers, and intralineage matings are required to produce queens. This GCD system maintains genetic isolation among these interdependent lineages, while simultaneously requiring co-expansion and emigration as their distributions have changed over time. It has also been demonstrated that three of these four GCD lineages have undergone historical hybridization, but the narrower sampling range of previous studies has left questions on the hybrid parentage, breadth, and age of these groups. Thus, reconstructing the phylogenetic and geographic history of this group allows us to evaluate past insights and hypotheses and to plan future inquiries in a more complete historical biogeographic context. Using mitochondrial DNA sequences sampled across most of the morphospecies’ ranges in the U.S.A. and Mexico, we conducted a detailed phylogeographic study. Remarkably, our results indicate that one of the GCD lineage pairs has experienced a dramatic range expansion, despite the genetic load and fitness costs of the GCD system. Our analyses also reveal a complex pattern of vicariance and dispersal in Pogonomyrmex harvester ants that is largely concordant with models of late Miocene, Pliocene, and Pleistocene range shifts among various arid-adapted taxa in North America.

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Section: Methodsmentioning

confidence: 99%

Phylogeography ofPogonomyrmex barbatusandP. rugosusharvester ants with genetic and environmental caste determination

Mott

Gadau

Anderson

2015

Ecology and Evolution

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“…Maritime wetland dominants included red mangrove ( Rhizophora mangle ), button mangrove ( Conocarpus erectus ), black mangrove, and white mangrove (Brown et al ); the latter 2 being most common (Ramírez‐García et al ). The corozo palm ( Arecaceae spp.)…”

Section: Study Areamentioning

confidence: 99%

Densities and perceptions of jaguars in coastal Nayarit, Mexico

2016

Self Cite

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Conservation of large carnivores will require greater analyses of population parameters, habitat use, and distribution in multiuse landscapes as human populations increase and agriculture expands. We used Bayesian spatially explicit capture–recapture (SECR) models and completed 82 interviews in 24 localities over 4 field seasons from April 2009 to March 2013 to estimate densities and assess residents’ perceptions of jaguars (Panthera onca) in the San Blas Municipality within the southern Marismas Nacionales ecosystem in Nayarit, Mexico. Camera traps accumulated 90 detections of 9 jaguars (2 M, 5 F, and 2 individuals of unknown sex) in a 194‐km2 area during 1,575 trap‐nights from April to June 2010. We detected jaguars at 16 of the 27 camera‐trap sites and calculated a density estimate of 2.04 (SE = 0.45) individuals/100 km2 using the SECR method. This is one of the first studies to use SECR models for jaguar density estimation and 1 of only 2 studies throughout jaguar distribution to estimate population parameters of the species where human population densities reach >50 people/km2. Future studies in this unique landscape should focus on jaguar status in the northern stretches of the Marismas Nacionales and research the mechanisms that may allow this large carnivore to persist in altered landscapes among human population densities greater than previously believed to be tolerable by the species. © 2016 The Wildlife Society.

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“…This region supports a wide diversity of nearctic and neotropical biotic communities including temperate and tropical-subtropical forests, woodlands, scrublands, deserts, temperate grasslands, and the riparian and wetland communities embedded within each of these (Brown et al 2007). Substantial numbers of western migratory landbirds appear to move in broad fronts through this region Hutto 2005, Faaborg et al 2010a).…”

Section: Methods Study Sitesmentioning

confidence: 84%