Influence of the commensal gastropod Crepidula plana on shell choice by the marine hermit crab Pagurus longicarpus, with an assessment of the degree of stress caused by different eviction techniques
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Avoidance of drilled gastropod shells by the hermit crab Pagurus longicarpus at Nahant, Massachusetts.
Most hermit crabs depend on empty gastropod shells for shelter; competition for appropriate shells is often severe. This study determined whether shells that have been drilled by naticid gastropods are suitable for occupancy by the hermit crab Pagurus longicarpus. Differences in the characteristics of empty shells and those occupied by hermit crabs were assessed at two adjacent field sites in N...
متن کاملYearly shifts in shell quality for the hermit crab Pagurus longicarpus in coastal Massachusetts
Global warming is expected to result in milder New England winters. In this study we monitored changes in hermit crab shell quality at Nahant, Massachusetts, USA, at intervals during 17 yr between 1997 and 2014 for a single species of hermit crab Pagurus longicarpus occupying the shells of the intertidal periwinkle Littorina littorea. The incidence of hermit crabs occupying damaged shells, shel...
متن کاملThe use of artificial shells for exploring shell preference in the marine hermit crab Pagurus longicarpus (Say)
Although recognition behavior is central to many aspects of an organism’s biology, it has been difficult to effectively identify the individual recognition components (i.e., production, perception, and action) for most organisms. Among hermit crabs, a relatively well-studied system for recognition behavior, the precise shell cues that stimulate crabs to explore and choose empty shells are uncle...
متن کاملEffects of shell fit on the biology of the hermit crab Pagurus longicarpus (Say)
Most hermit crabs have a specialized lifestyle that requires them to occupy gastropod shells. The size of shells that hermit crabs inhabit relative to their body size affects their growth, survival and fecundity. In this study, the effects of shell fit on individual growth rate, risk of predation, feeding rate, and activity level were examined in the laboratory for hermit crabs Pagurus longicar...
متن کاملShell Selection in the Hermit Crab Clibanarius signatus Heller, 1861 from the Larak Island in the Persian Gulf
Shell selection indices of the dominant hermit crab Clibanarius signatus Heller, 1861, in the Larak Island were studied from September 2011 to June 2012. Among 739 sampled specimens, 41 different gastropod shell types were selected as shelters based on their abundance and local availability. A significant positive correlation (P<0/01) was found between the dimensions of the hermit crab, Cli...
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تاریخ انتشار 2015