![]() ![]() ![]() Our results exemplify the need for extensive genetic and biogeographic analyses for any species with broad geographic distributions and the need for detailed evaluation of evolutionary history and adaptive ecological divergence when defining intraspecific conservation units. We suggest conservation priorities among lake whitefish DUs based on biological consequences of extinction, risk of extinction and distinctiveness. The identification of DUs is required for clear discussion regarding the conservation prioritization of lake whitefish populations. ![]() We identified 36 DUs based on (i) reproductive isolation, (ii) phylogeographic groupings, (iii) local adaptation and (iv) biogeographic regions. Here, we employ a set of hierarchical criteria to identify DUs within the Canadian distribution of the lake whitefish species complex. The lake whitefish species complex ( Coregonus spp.) is geographically widespread in the Northern Hemisphere, and it contains a great deal of variability in ecology and evolutionary legacy within and among populations, as well as a great deal of taxonomic ambiguity. However, its suitability for defining conservation units in ecologically diverse, geographically widespread and taxonomically challenging species complexes has not been broadly evaluated. Press T again and it will allow you to fast-forward until morning at which point in time you will automatically sell whatever is in your keepnet and be prompted to purchase a new day's worth of travel accommodations (see 'Cost Per Day' below) allowing you to continue to fish without paying the initial Travel Cost anew.The concept of the designatable unit (DU) affords a practical approach to identifying diversity below the species level for conservation prioritization. To do this, once you have filled the keepnet, press T to advance Time past 9pm. While leveling, it is recommended that you have the largest keepnet available when traveling to a new location as you will often need to continue to fish at that location for more than one day in order to recuperate the travel costs. ![]()
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