Abstract

Habitat selection is a basic aspect of the ecology of many species, yet often the term is conflated or confused with both habitat preference and habitat use. We argue that each term fits within a conceptual framework that can be viewed in Bayesian terms and demonstrate, using long-term data on occupancy patterns of a grassland grouse, how prior probability profiles can be estimated. We obtained estimates by specifically focusing on whether and to what extent the Lesser Prairie-Chicken (Tympanuchus pallidicinctus) avoids anthropogenic features such as roads, powerlines, petroleum wells, fences, and buildings, in two study areas, one with denser and one with sparser incidence of features. Grouse strongly avoided large features such as outbuildings and tended to avoid tall features such as powerlines; by contrast, grouse did not or only slightly avoided low, unobtrusive features such as fences. We further examined co-location of pairs of anthropogenic features and found that certain features were avoided so strongly that avoidance distance may be shorter for other features; that is, birds were “pushed toward” some features because they are “pushed away” from others. In each case, our approach points toward a means to incorporate avoidance behavior directly into analytic studies of habitat selection, in that data on use (the posterior, as it were) could be used to infer the selection process provided data on preference (the prior, as it were) could be obtained.

Highlights

  • Habitat selection is a basic aspect of the ecology of many species, yet often the term is conflated or confused with both habitat preference and habitat use

  • A key aspect of cognitive assessment inherent to habitat selection is the possibility of avoidance, a type of assessment that has its own c­ onsequences[3]

  • To conclude that preference and subsequent selection are relative, with preference expected to be “hard wired” to the extent it is under natural ­selection[4], meaning some aspect of individuals’ habitat selection will reflect the landscape’s contextual ­history[5]

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Summary

Introduction

Habitat selection is a basic aspect of the ecology of many species, yet often the term is conflated or confused with both habitat preference and habitat use. It is tempting, to conclude that preference and subsequent selection are relative, with preference expected to be “hard wired” to the extent it is under natural ­selection[4], meaning some aspect of individuals’ habitat selection will reflect the landscape’s contextual ­history[5]. To conclude that preference and subsequent selection are relative, with preference expected to be “hard wired” to the extent it is under natural ­selection[4], meaning some aspect of individuals’ habitat selection will reflect the landscape’s contextual ­history[5] In this view, an organism will assess particular cues, such as vegetation structure or water availability (among many possibilities), to build its probability distribution of preference. Potential fitness consequences have received the bulk of attention in the literature, including the role of habitat avoidance in ­speciation[7], yet altered cues matter a great deal given that otherwise suitable habitat may be avoided

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