Individual heterogeneity and effects of harvest on greater sage-grouse populations

摘要: The influence of harvest on wild populations has been the focus substantial debate, and widespread implications for management populations. Traditional views are based density-dependent responses to harvest. However, alternate mechanisms can do induce compensation (e.g., individual heterogeneity). Selective successful females their offspring is thought occur in some grouse blue [Dendragapus spp.], greater sage-grouse [Centrocercus urophasianus]), delaying within a season proposed as viable strategy overcome this type selective recent examination regarding effects strongly criticized recommendation delayed Herein, we address criticism provide an projecting face heterogeneity using deterministic projection models. We demonstrate that under proportional harvesting strategies, given fixed rate, early additive does not have larger effect population than later season. Moreover, show when higher quality individuals (i.e., with survival reproductive rates) more susceptible harvest, will depensatory dynamics only additive. Conversely, even additive, if lower partial compensation. Reducing selectivity shifting onto groups) could reduce risk artificial selection Therefore, recommend managers consider spatiotemporal patterns time maximize tradeoff between individuals. © 2017 Wildlife Society.