Introgressive hybridization and species turnover in reservoirs: a case study involving endemic and invasive basses (Centrarchidae: Micropterus) in southeastern North America

Bangs, Max R.; Oswald, Kenneth J.; Greig, Thomas W.; Leitner, Jean; Rankin, Daniel M.; Quattro, Joseph M.

doi:10.1007/s10592-017-1018-7

Cited by 32 publications

(55 citation statements)

References 52 publications

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“…; Bangs et al. ). In each instance of replacement, biologists speculated that the non‐native form was better suited to survive and reproduce in the impounded habitats than the native form (Avise et al.…”

Section: Conservation Challengesmentioning

confidence: 97%

“…Hybridization between black bass forms can have a wide range of outcomes, from hybridization without introgression to complete admixture that results in the loss of one or more parental forms Koppelman 2015). Cases of complete admixture have been reported in several southeastern U.S. impoundments, includ ing the replacement of native Smallmouth Bass by introduced Alabama Bass (Avise et al 1997;Pierce and Van Den Avyle 1997) and the replacement of native Bartram's Bass with introduced Alabama Bass ( Barwick et al 2006;Bangs et al 2018). In each instance of replacement, biologists speculat ed that the non native form was better suited to survive and reproduce in the impounded habitats than the native form (Avise et al 1997;Bangs et al 2018).…”

Section: Non-native Congenersmentioning

confidence: 99%

“…Meanwhile, impoundment construc tion could facilitate non native congener invasions into inter connected fluvial habitats (Johnson et al 2008;Taylor et al 2018b). Several studies have indicated that non native conge ners may have a competitive advantage over native species in impounded systems because the non natives generally share ecological requirements of native forms but are more tolerant of impounded habitats Bangs et al 2018;Taylor et al 2018b). To complicate matters further, fragment ed native populations may be more susceptible to competitive interactions with non native congeners (see Sakai et al 2001), and introgressed non native alleles are expected to spread more rapidly through small native populations as random genetic drift becomes an increasingly stronger force as effec tive population size decreases (Charlesworth 2009).…”

Section: Climate Changementioning

confidence: 99%

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Conservation of Black Bass Diversity: An Emerging Management Paradigm

et al. 2019

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Black bass Micropterus spp. are quintessential North American sportfishes that support economically valuable fisheries and act as keystone predators within aquatic ecosystems. Despite their prominence among North American fish fauna, a number of taxonomic designations are unresolved and novel forms continue to be identified within drainages of the southeastern USA. We review the current understanding of black bass diversity, including distributions, evolutionary histories, and phylogenetic relationships. We also provide a brief overview of the major paradigms that have been applied to black bass management and highlight an emerging focus on the conservation of black bass diversity. Black bass diversity is threatened by anthropogenic land and water use, fragmentation of fluvial habitats, historic and contemporary stocking of non‐native congeners, and climate change. Successful conservation of black bass diversity requires that management agencies prioritize the protection of native species, forms, and lineages within and across jurisdictional boundaries. Collaboration among scientists and resource managers is needed to develop practical ways to ameliorate current problems created by past and present anthropogenic alterations, while also preparing for future challenges like global climate change.

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Section: Conservation Challengesmentioning

confidence: 97%

Section: Non-native Congenersmentioning

confidence: 99%

Section: Climate Changementioning

confidence: 99%

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Conservation of Black Bass Diversity: An Emerging Management Paradigm

et al. 2019

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“…Hybridization between black bass forms can have a wide range of outcomes, from hybridization without introgression to complete admixture that results in the loss of one or more parental forms Koppelman 2015 ). Cases of complete admixture have been reported in several southeastern U.S. impoundments, including the replacement of native Smallmouth Bass by introduced Alabama Bass (Avise et al 1997 ; and the replacement of native Bartram ' s Bass with introduced Alabama Bass ( Barwick et al 2006 ;Bangs et al 2018 ). In each instance of replacement, biologists speculated that the non-native form was better suited to survive and reproduce in the impounded habitats than the native form (Avise et al 1997 ;Bangs et al 2018 ).…”

Section: Non-native Congenersmentioning

confidence: 99%

“…Meanwhile, impoundment construction could facilitate non-native congener invasions into interconnected fl uvial habitats Taylor et al 2018b ). Several studies have indicated that non-native congeners may have a competitive advantage over native species in impounded systems because the non-natives generally share ecological requirements of native forms but are more tolerant of impounded habitats Bangs et al 2018 ;Taylor et al 2018b ). To complicate matters further, fragmented native populations may be more susceptible to competitive interactions with non-native congeners ( see Sakai et al 2001 ), and introgressed non-native alleles are expected to spread more rapidly through small native populations as random genetic drift becomes an increasingly stronger force as effective population size decreases (Charlesworth 2009 ).…”

Section: Climate Changementioning

confidence: 99%

Fisheries Volume 44 Number 1 January 2019

2019

Fisheries

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Gene flow and species delimitation in fishes of Western North America: Flannelmouth (Catostomus latipinnis) and Bluehead sucker (C. Pantosteus discobolus)

Bangs

Douglas

Chafin

2020

Ecology and Evolution

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The delimitation of species boundaries, particularly those obscured by reticulation, is a critical step in contemporary biodiversity assessment. It is especially relevant for conservation and management of indigenous fishes in western North America, represented herein by two species with dissimilar life histories codistributed in the highly modified Colorado River (i.e., flannelmouth sucker, Catostomus latipinnis; bluehead sucker, C. (Pantosteus) discobolus). To quantify phylogenomic patterns and examine proposed taxonomic revisions, we first employed double‐digest restriction site‐associated DNA sequencing (ddRAD), yielding 39,755 unlinked SNPs across 139 samples. These were subsequently evaluated with multiple analytical approaches and by contrasting life history data. Three phylogenetic methods and a Bayesian assignment test highlighted similar phylogenomic patterns in each, but with considerable difference in presumed times of divergence. Three lineages were detected in bluehead sucker, supporting elevation of C. (P.) virescens to species status and recognizing C. (P.) discobolus yarrowi (Zuni bluehead sucker) as a discrete entity. Admixture in the latter necessitated a reevaluation of its contemporary and historic distributions, underscoring how biodiversity identification can be confounded by complex evolutionary histories. In addition, we defined three separate flannelmouth sucker lineages as ESUs (evolutionarily significant units), given limited phenotypic and genetic differentiation, contemporary isolation, and lack of concordance (per the genealogical concordance component of the phylogenetic species concept). Introgression was diagnosed in both species, with the Little Colorado and Virgin rivers in particular. Our diagnostic methods, and the agreement of our SNPs with previous morphological, enzymatic, and mitochondrial work, allowed us to partition complex evolutionary histories into requisite components, such as isolation versus secondary contact.

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Introgressive hybridization and species turnover in reservoirs: a case study involving endemic and invasive basses (Centrarchidae: Micropterus) in southeastern North America

Cited by 32 publications

References 52 publications

Conservation of Black Bass Diversity: An Emerging Management Paradigm

Conservation of Black Bass Diversity: An Emerging Management Paradigm

Fisheries Volume 44 Number 1 January 2019

Gene flow and species delimitation in fishes of Western North America: Flannelmouth (Catostomus latipinnis) and Bluehead sucker (C. Pantosteus discobolus)

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