2016
DOI: 10.1111/eva.12446
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Managing cryptic biodiversity: Fine‐scale intralacustrine speciation along a benthic gradient in Alpine whitefish (Coregonusspp.)

Abstract: Whitefish (Coregonus spp.) are an important catch for many freshwater fisheries, particularly in Switzerland. In support of this, supplemental stocking of whitefish species is carried out, despite lacking complete knowledge of the extent, distribution and origin of whitefish diversity in these lakes, potentially threatening local endemics via artificial gene flow. Here, we investigate phenotypic and genetic differentiation among coexisting whitefish species spawning along a depth gradient in a subalpine Swiss … Show more

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Cited by 38 publications
(102 citation statements)
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“…Within both lakes, none of the between‐species genetic structure was explained by geography, when considering the four species occurring in both lakes (Supporting Information Table ). This is consistent with earlier results from other Alpine whitefish radiations (Hudson et al., ; Vonlanthen et al., ). This may indicate that for highly mobile fish such as these, these postglacial lakes are too small for geographical genetic structure to arise.…”
Section: Discussionsupporting
confidence: 94%
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“…Within both lakes, none of the between‐species genetic structure was explained by geography, when considering the four species occurring in both lakes (Supporting Information Table ). This is consistent with earlier results from other Alpine whitefish radiations (Hudson et al., ; Vonlanthen et al., ). This may indicate that for highly mobile fish such as these, these postglacial lakes are too small for geographical genetic structure to arise.…”
Section: Discussionsupporting
confidence: 94%
“…Despite occurring in geographic sympatry, speciation in the latter case is still often associated with spatial ecological gradients at a smaller scale (Seehausen et al., ). Such fine‐scale structuring of ecological niches has been found to greatly facilitate speciation, both in empirical studies of adaptive radiations in fish (Hudson, Lundsgaard‐Hansen, Lucek, Vonlanthen, & Seehausen, ; Seehausen et al., ) and in theoretical models (Doebeli & Dieckmann, ; Gavrilets, ). It also plays a key role for the local coexistence of ecologically differentiated species in adaptive radiations that are assembled through allopatric speciation (Gillespie, ; Losos, ).…”
Section: Introductionmentioning
confidence: 99%
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“…in Europe and North America. In each lake where these taxa occur, species-pairs have evolved along depth gradients so that the two forms are distinguishable by molecular, morphological and physiological data (see Gagnaire et al, 2013;Hudson et al, 2017). In Europe some of these species-pairs show clear differences in reproductive ecology and are now considered as distinct species (Hudson et al, 2017).…”
Section: Discussionmentioning
confidence: 99%