Understanding the genetic effects of recent habitat fragmentation in the context of evolutionary history: phylogeography and landscape genetics of a southern California endemic Jerusalem cricket (Orthoptera: Stenopelmatidae: Stenopelmatus).

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  • Additional Information
    • Subject Terms:
    • Subject Terms:
    • Author-Supplied Keywords:
      anthropogenic habitat fragmentation
      gene flow
      genetic population structure
      insect
      Quaternary inundation
      Stenopelmatus
      urbanization
    • Abstract:
      Habitat loss and fragmentation due to urbanization are the most pervasive threats to biodiversity in southern California. Loss of habitat and fragmentation can lower migration rates and genetic connectivity among remaining populations of native species, reducing genetic variability and increasing extinction risk. However, it may be difficult to separate the effects of recent anthropogenic fragmentation from the genetic signature of prehistoric fragmentation due to previous natural geological and climatic changes. To address these challenges, we examined the phylogenetic and population genetic structure of a flightless insect endemic to cismontane southern California, Stenopelmatus‘ mahogani’ (Orthoptera: Stenopelmatidae). Analyses of mitochondrial DNA sequence data suggest that diversification across southern California began during the Pleistocene, with most haplotypes currently restricted to a single population. Patterns of genetic divergence correlate with contemporary urbanization, even after correcting for (geographical information system) GIS-based reconstructions of fragmentation during the Pleistocene. Theoretical simulations confirm that contemporary patterns of genetic structure could be produced by recent urban fragmentation using biologically reasonable assumptions about model parameters. Diversity within populations was positively correlated with current fragment size, but not prehistoric fragment size, suggesting that the effects of increased drift following anthropogenic fragmentation are already being seen. Loss of genetic connectivity and diversity can hinder a population's ability to adapt to ecological perturbations commonly associated with urbanization, such as habitat degradation, climatic changes and introduced species. Consequently, our results underscore the importance of preserving and restoring landscape connectivity for long-term persistence of low vagility native species. [ABSTRACT FROM AUTHOR]
    • Abstract:
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    • ISSN:
      0962-1083
    • Accession Number:
      10.1111/j.1365-294X.2006.03216.x
    • Accession Number:
      23984313
  • Citations
    • ABNT:
      VANDERGAST, A. G. et al. Understanding the genetic effects of recent habitat fragmentation in the context of evolutionary history: phylogeography and landscape genetics of a southern California endemic Jerusalem cricket (Orthoptera: Stenopelmatidae: Stenopelmatus). Molecular Ecology, [s. l.], v. 16, n. 5, p. 977–992, 2007. DOI 10.1111/j.1365-294X.2006.03216.x. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=hch&AN=23984313. Acesso em: 27 out. 2020.
    • AMA:
      VANDERGAST AG, BOHONAK AJ, WEISSMAN DB, FISHER RN. Understanding the genetic effects of recent habitat fragmentation in the context of evolutionary history: phylogeography and landscape genetics of a southern California endemic Jerusalem cricket (Orthoptera: Stenopelmatidae: Stenopelmatus). Molecular Ecology. 2007;16(5):977-992. doi:10.1111/j.1365-294X.2006.03216.x
    • APA:
      VANDERGAST, A. G., BOHONAK, A. J., WEISSMAN, D. B., & FISHER, R. N. (2007). Understanding the genetic effects of recent habitat fragmentation in the context of evolutionary history: phylogeography and landscape genetics of a southern California endemic Jerusalem cricket (Orthoptera: Stenopelmatidae: Stenopelmatus). Molecular Ecology, 16(5), 977–992. https://doi.org/10.1111/j.1365-294X.2006.03216.x
    • Chicago/Turabian: Author-Date:
      VANDERGAST, AMY G., ANDREW J. BOHONAK, DAVID B. WEISSMAN, and ROBERT N. FISHER. 2007. “Understanding the Genetic Effects of Recent Habitat Fragmentation in the Context of Evolutionary History: Phylogeography and Landscape Genetics of a Southern California Endemic Jerusalem Cricket (Orthoptera: Stenopelmatidae: Stenopelmatus).” Molecular Ecology 16 (5): 977–92. doi:10.1111/j.1365-294X.2006.03216.x.
    • Harvard:
      VANDERGAST, A. G. et al. (2007) ‘Understanding the genetic effects of recent habitat fragmentation in the context of evolutionary history: phylogeography and landscape genetics of a southern California endemic Jerusalem cricket (Orthoptera: Stenopelmatidae: Stenopelmatus)’, Molecular Ecology, 16(5), pp. 977–992. doi: 10.1111/j.1365-294X.2006.03216.x.
    • Harvard: Australian:
      VANDERGAST, AG, BOHONAK, AJ, WEISSMAN, DB & FISHER, RN 2007, ‘Understanding the genetic effects of recent habitat fragmentation in the context of evolutionary history: phylogeography and landscape genetics of a southern California endemic Jerusalem cricket (Orthoptera: Stenopelmatidae: Stenopelmatus)’, Molecular Ecology, vol. 16, no. 5, pp. 977–992, viewed 27 October 2020, .
    • MLA:
      VANDERGAST, AMY G., et al. “Understanding the Genetic Effects of Recent Habitat Fragmentation in the Context of Evolutionary History: Phylogeography and Landscape Genetics of a Southern California Endemic Jerusalem Cricket (Orthoptera: Stenopelmatidae: Stenopelmatus).” Molecular Ecology, vol. 16, no. 5, Mar. 2007, pp. 977–992. EBSCOhost, doi:10.1111/j.1365-294X.2006.03216.x.
    • Chicago/Turabian: Humanities:
      VANDERGAST, AMY G., ANDREW J. BOHONAK, DAVID B. WEISSMAN, and ROBERT N. FISHER. “Understanding the Genetic Effects of Recent Habitat Fragmentation in the Context of Evolutionary History: Phylogeography and Landscape Genetics of a Southern California Endemic Jerusalem Cricket (Orthoptera: Stenopelmatidae: Stenopelmatus).” Molecular Ecology 16, no. 5 (March 2007): 977–92. doi:10.1111/j.1365-294X.2006.03216.x.
    • Vancouver/ICMJE:
      VANDERGAST AG, BOHONAK AJ, WEISSMAN DB, FISHER RN. Understanding the genetic effects of recent habitat fragmentation in the context of evolutionary history: phylogeography and landscape genetics of a southern California endemic Jerusalem cricket (Orthoptera: Stenopelmatidae: Stenopelmatus). Molecular Ecology [Internet]. 2007 Mar [cited 2020 Oct 27];16(5):977–92. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=hch&AN=23984313