Evol Ecol Res 15: 103-110 (2013)     Full PDF if your library subscribes.

Intraspecific home range scaling: a case study from the owl limpet (Lottia gigantea)

Phillip B. Fenberg

Department of Zoology, Oregon State University, Corvallis, Oregon, USA

Correspondence: P.B. Fenberg, Department of Zoology, Oregon State University, 3029 Cordley Hall, Corvallis, OR 97331, USA. E-mail: pfenberg@gmail.com; fenbergp@science.oregonstate.com


Background: The owl limpet (Lottia gigantea) is an ectothermic invertebrate that inhabits the rocky intertidal zone where it territorially defends home ranges and grazes algae growing on the rocks. Among endothermic species, home range scales isometrically with body mass.

Hypothesis: Home range area scales isometrically (scaling exponent ∼1.0) across individuals of the owl limpet, spanning more than an order of magnitude in body mass.

Field sites: Southern and central California rocky intertidal sites (n = 5; ∼32.5–35.5°N).

Methods: Measure home range area and body mass of individuals (n = 104). Determine the scaling exponent.

Conclusions: Home range scaling across individuals of L. gigantea exhibits the same isometric relationship that is often found across endothermic species.

Keywords: Allometry, ectothermic invertebrate, home range scaling, Lottia gigantea, size-selective harvesting.

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