2018
DOI: 10.1098/rspb.2018.0953
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Information use during movement regulates how fragmentation and loss of habitat affect body size

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, … Show more

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Cited by 15 publications
(13 citation statements)
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“…A comparison of daily events for the juvenile and adult stage of the consumer (Hillaert et al., ). BMR stands for the basal metabolic rate costs…”
Section: Methodsmentioning
confidence: 99%
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“…A comparison of daily events for the juvenile and adult stage of the consumer (Hillaert et al., ). BMR stands for the basal metabolic rate costs…”
Section: Methodsmentioning
confidence: 99%
“…We modified the consumer-resource model presented in Hillaert, Vandegehuchte, Hovestadt, and Bonte (2018) to understand how the spatial distribution of a resource affects the size distribution of its consumer(s). The spatial distribution of the resource and its abundance differed between simulations with regard to the distance between its suitable patches (nearest neighbor distance [NND)] and its growth rate.…”
Section: Me Thodologymentioning
confidence: 99%
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“…In addition, it is itself subject to evolution (Ronce, ). Movement can be similarly important (Hillaert, Vandegehuchte, Hovestadt, & Bonte, ). Fourth, EEFs do not necessarily require rapid or contemporary evolution (Post & Palkovacs, ).…”
Section: Synthesis and Conclusionmentioning
confidence: 99%
“…Larger individuals seem to be selected because of their abilities to cross unsuitable habitat to reach distant habitat patches (Tscharntke and Brandl 2004, Stevens et al 2014, Keinath et al 2017, Merckx et al 2018) and are also often more resistant to starvation (Peters 1983, Gergs and Jager 2014). Recent theoretical frameworks encapsulate the positive relationship between body size and landscape fragmentation (Hillaert et al 2018a, b2018b), but convincing empirical evidence is lacking, particularly in invertebrates. Moreover, all these drivers of body size clines can also counteract each other, leading to very slight or non‐significant body size clines.…”
Section: Introductionmentioning
confidence: 99%