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Gautestad AO. Individual Network Topology of Patch Selection Under Influence of Drifting Site Fidelity. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.695854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Network theory has led to important insight into statistical-mechanical aspects of systems showing scaling complexity. I apply this approach to simulate the behavior of animal space use under the influence of memory and site fidelity. Based on the parsimonious Multi-scaled random walk model (MRW) an emergent property of self-reinforcing returns to a subset of historic locations shows how a network of nodes grows into an increased hierarchical depth of site fidelity. While most locations along a movement path may have a low revisit probability, habitat selection is maturing with respect to utilization of the most visited patches, in particular for patches that emerge during the early phase of node development. Using simulations with default MRW properties, which have been shown to produce space use in close statistical compliance with utilization distributions of many species of mammals, I illustrate how a shifting spatio-temporal mosaic of habitat utilization may be described statistically and given behavioral-ecological interpretation. The proposed method is illustrated with a pilot study using black bear Ursus americanus telemetry fixes. One specific parameter, the Characteristic Scale of Space Use, is here shown to express strong resilience against shifting site fidelity. This robust result may seem counter-intuitive, but is logical under the premise of the MRW model and its relationship to site fidelity, whether stable or shifting spatially over time. Thus, spatial analysis of the dynamics of a gradually drifting site fidelity using simulated scenarios may indirectly cast light on the dynamics of movement behavior as preferred patches are shifting over time. Both aspects of complex space use, network topology and dynamically drifting dispersion of site fidelity, provide in tandem important descriptors of behavioral ecology with relevance to habitat selection.
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Vasudev D, Goswami VR, Srinivas N, Syiem BLN, Sarma A. Identifying important connectivity areas for the wide‐ranging Asian elephant across conservation landscapes of Northeast India. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13419] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Divya Vasudev
- Conservation Initiatives Guwahati Assam India
- Centre for Wildlife Studies Bengaluru Karnataka India
- Wildlife Conservation Trust Mumbai Maharashtra India
| | - Varun R. Goswami
- Conservation Initiatives Guwahati Assam India
- Centre for Wildlife Studies Bengaluru Karnataka India
| | | | - Biang La Nam Syiem
- Conservation Initiatives Guwahati Assam India
- Centre for Wildlife Studies Bengaluru Karnataka India
- Centre for Integrative Ecology, School of Life and Environmental Sciences Deakin University Melbourne VIC Australia
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