caa a22 4500 605462682 CHVBK 20210128100249.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10211-014-0192-6 doi (NATIONALLICENCE)springer-10.1007/s10211-014-0192-6 Isolation increases time to emerge from shells in two Coenobita hermit crab species [Elektronische Daten] [Julia Bartmess-LeVasseur, Todd Freeberg] Isolation increases activity in individuals of some species, whereas it decreases activity in individuals of other species. Furthermore, as the length of isolation increases, behavioral changes can become more pronounced. Here, we examined effects of short-term isolation on latencies for individuals to emerge from their shells in two species of terrestrial hermit crab (Coenobita rugosus and Coenobita brevimanus) over a 4-week period. Within each species, crabs were housed individually (isolate context) or socially in groups of four (social context). In each week, crabs were exposed to an emergence test, which measured the latency to emerge from the shell following a potentially threatening stimulus. We obtained a significant context × week interaction. Although socially housed crabs showed no change in emergence over the 4weeks of the study, isolate crabs took longer to emerge from their shells as the period of isolation increased. Our study corroborates findings in other invertebrate species, as well as in vertebrate species, that isolation generally decreases activity levels and may increase fear levels, in individuals. Springer-Verlag Berlin Heidelberg and ISPA, 2014 Hermit crabs nationallicence Coenobita rugosus nationallicence Coenobita brevimanus nationallicence Isolation nationallicence Social nationallicence Bartmess-LeVasseur Julia Department of Psychology, Austin Peay Building, University of Tennessee, Austin Peay Building, Knoxville, USA aut Freeberg Todd Department of Psychology, Austin Peay Building, University of Tennessee, Austin Peay Building, Knoxville, USA aut acta ethologica Springer Berlin Heidelberg 18/2(2015-06-01), 221-225 0873-9749 18:2<221 2015 18 10211 https://doi.org/10.1007/s10211-014-0192-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 brief-communication jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10211-014-0192-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bartmess-LeVasseur Julia Department of Psychology, Austin Peay Building, University of Tennessee, Austin Peay Building, Knoxville, USA aut NATIONALLICENCE 700 1- Freeberg Todd Department of Psychology, Austin Peay Building, University of Tennessee, Austin Peay Building, Knoxville, USA aut NATIONALLICENCE 773 0- acta ethologica Springer Berlin Heidelberg 18/2(2015-06-01), 221-225 0873-9749 18:2<221 2015 18 10211