Article
 

Rangewide genetic analysis of Lesser Prairie-Chicken reveals population structure, range expansion, and possible introgression

Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/p2676x16x

Descriptions

Attribute NameValues
Creator
Abstract
  • The distribution of the Lesser Prairie-Chicken (Tympanuchus pallidicinctus) has been markedly reduced due to loss and fragmentation of habitat. Portions of the historical range, however, have been recolonized and even expanded due to planting of conservation reserve program (CRP) fields that provide favorable vegetation structure for Lesser Prairie-Chickens. The source population(s) feeding the range expansion is unknown, yet has resulted in overlap between Lesser and Greater Prairie-Chickens (T. cupido) increasing the potential for hybridization. Our objectives were to characterize connectivity and genetic diversity among populations, identify source population(s) of recent range expansion, and examine hybridization with the Greater Prairie-Chicken. We analyzed 640 samples from across the range using 13 microsatellites. We identified three to four populations corresponding largely to ecoregions. The Shinnery Oak Prairie and Sand Sagebrush Prairie represented genetically distinct populations (F (ST) > 0.034 and F (ST) > 0.023 respectively). The Shortgrass/CRP Mosaic and Mixed Grass ecoregions appeared admixed (F (ST) = 0.009). Genetic diversity was similar among ecoregions and N (e) ranged from 142 (95 % CI 99-236) for the Shortgrass/CRP Mosaic to 296 (95 % CI 233-396) in the Mixed Grass Prairie. No recent migration was detected among ecoregions, except asymmetric dispersal from both the Mixed Grass Prairie and to a lesser extent the Sand Sagebrush Prairie north into adjacent Shortgrass/CRP Mosaic (m = 0.207, 95 % CI 0.116-0.298, m = 0.097, 95 % CI 0.010-0.183, respectively). Indices investigating potential hybridization in the Shortgrass/CRP Mosaic revealed that six of the 13 individuals with hybrid phenotypes were significantly admixed suggesting hybridization. Continued monitoring of diversity within and among ecoregions is warranted as are actions promoting genetic connectivity and range expansion.
  • Keywords: Spatial genetic population structure, Genetic diversity, Tympanuchus pallidicinctus, Gene flow, Hybridization
Resource Type
DOI
Date Available
Date Issued
Citation
  • Oyler-McCance, S. J., DeYoung, R. W., Fike, J. A., Hagen, C. A., Johnson, J. A., Larsson, L. C., & Patten, M. A. (2016). Rangewide genetic analysis of Lesser Prairie-Chicken reveals population structure, range expansion, and possible introgression. Conservation Genetics, 17(3), 643-660. doi:10.1007/s10592-016-0812-y
Journal Title
Journal Volume
  • 17
Journal Issue/Number
  • 3
Rights Statement
Funding Statement (additional comments about funding)
  • Funding for this project was provided by the U.S. Geological Survey. Support for C.A. Hagen was provided by Grant Agreement #J1730A between Oregon State University and Pheasants Forever. The Sutton Avian Research Center gratefully acknowledges support from federal and state agencies, corporate and private foundations, and private individuals.
Publisher
Peer Reviewed
Language
Replaces

Relationships

Parents:

This work has no parents.

Items

Thumbnail Title Date Uploaded Visibility Actions
file details OylerMcCanceRangewideGeneticAnalysis.pdf 07/26/2017 Public
file details OylerMcCanceRangewideGeneticAnalysisTable1.pdf 07/26/2017 Public