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Information use during movement regulates how fragmentation and loss of habitat affect body size

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Abstract
An individual's body size is central to its behaviour and physiology, and tightly linked to its movement ability. The spatial arrangement of resources and a consumer's capacity to locate them are therefore expected to exert strong selection on consumer body size. We investigated the evolutionary impact of both the fragmentation and loss of habitat on consumer body size and its feedback effects on resource distribution, under varying levels of information used during habitat choice. We developed a mechanistic, individual-based, spatially explicit model, including several allometric rules for key consumer traits. Our model reveals that as resources become more fragmented and scarce, informed habitat choice selects for larger body sizes while random habitat choice promotes small sizes. Information use may thus be an overlooked explanation for the observed variation in body size responses to habitat fragmentation. Moreover, we find that resources can accumulate and aggregate if information about resource abundance is incomplete. Informed movement results in stable resource-consumer dynamics and controlled resources across space. However, habitat loss and fragmentation destabilize local dynamics and disturb resource suppression by the consumer. Considering information use during movement is thus critical to understand the eco-evolutionary dynamics underlying the functioning and structuring of consumer communities.
Keywords
allometry, metabolic theory, body size distributions, eco-evolutionary dynamics, habitat destruction, optimal size, LINKING COMMUNITY, ONTOGENIC GROWTH, FRACTAL GEOMETRY, FOREST FRAGMENTS, METABOLIC THEORY, META-ECOSYSTEMS, RAIN-FOREST, FOOD WEBS, DISPERSAL, LANDSCAPE

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MLA
Hillaert, Jasmijn, Martijn L. Vandegehuchte, Thomas Hovestadt, et al. “Information Use During Movement Regulates How Fragmentation and Loss of Habitat Affect Body Size.” PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 285.1884 (2018): n. pag. Print.
APA
Hillaert, J., Vandegehuchte, M. L., Hovestadt, T., & Bonte, D. (2018). Information use during movement regulates how fragmentation and loss of habitat affect body size. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 285(1884).
Chicago author-date
Hillaert, Jasmijn, Martijn L. Vandegehuchte, Thomas Hovestadt, and Dries Bonte. 2018. “Information Use During Movement Regulates How Fragmentation and Loss of Habitat Affect Body Size.” Proceedings of the Royal Society B-biological Sciences 285 (1884).
Chicago author-date (all authors)
Hillaert, Jasmijn, Martijn L. Vandegehuchte, Thomas Hovestadt, and Dries Bonte. 2018. “Information Use During Movement Regulates How Fragmentation and Loss of Habitat Affect Body Size.” Proceedings of the Royal Society B-biological Sciences 285 (1884).
Vancouver
1.
Hillaert J, Vandegehuchte ML, Hovestadt T, Bonte D. Information use during movement regulates how fragmentation and loss of habitat affect body size. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES. 2018;285(1884).
IEEE
[1]
J. Hillaert, M. L. Vandegehuchte, T. Hovestadt, and D. Bonte, “Information use during movement regulates how fragmentation and loss of habitat affect body size,” PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, vol. 285, no. 1884, 2018.
@article{8584301,
  abstract     = {An individual's body size is central to its behaviour and physiology, and tightly linked to its movement ability. The spatial arrangement of resources and a consumer's capacity to locate them are therefore expected to exert strong selection on consumer body size. We investigated the evolutionary impact of both the fragmentation and loss of habitat on consumer body size and its feedback effects on resource distribution, under varying levels of information used during habitat choice. We developed a mechanistic, individual-based, spatially explicit model, including several allometric rules for key consumer traits. Our model reveals that as resources become more fragmented and scarce, informed habitat choice selects for larger body sizes while random habitat choice promotes small sizes. Information use may thus be an overlooked explanation for the observed variation in body size responses to habitat fragmentation. Moreover, we find that resources can accumulate and aggregate if information about resource abundance is incomplete. Informed movement results in stable resource-consumer dynamics and controlled resources across space. However, habitat loss and fragmentation destabilize local dynamics and disturb resource suppression by the consumer. Considering information use during movement is thus critical to understand the eco-evolutionary dynamics underlying the functioning and structuring of consumer communities.},
  articleno    = {20180953},
  author       = {Hillaert, Jasmijn and Vandegehuchte, Martijn L. and Hovestadt, Thomas and Bonte, Dries},
  issn         = {0962-8452},
  journal      = {PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES},
  keywords     = {allometry,metabolic theory,body size distributions,eco-evolutionary dynamics,habitat destruction,optimal size,LINKING COMMUNITY,ONTOGENIC GROWTH,FRACTAL GEOMETRY,FOREST FRAGMENTS,METABOLIC THEORY,META-ECOSYSTEMS,RAIN-FOREST,FOOD WEBS,DISPERSAL,LANDSCAPE},
  language     = {eng},
  number       = {1884},
  pages        = {10},
  title        = {Information use during movement regulates how fragmentation and loss of habitat affect body size},
  url          = {http://dx.doi.org/10.1098/rspb.2018.0953},
  volume       = {285},
  year         = {2018},
}

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