Evaluating sampling techniques for measuring ghost crab (Ocypode quadrata) burrow density
, 2017 Through field sampling, this study compares the ghost crab burrow densities acquired using a Fixed-Area sampling method to those measured using the Belt Transect method commonly used in ecological research. The two methods differ in area sampled per study site as well as distribution of area sampled along the beach, from dune to swash.
Caitlin Seyfried
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Natural drivers of distribution of ghost crabs Ocypode quadrata and the implications of estimates from burrows [PDF]
Marine Ecology Progress Series, 2017 M Pombo +4 more
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Distribuição e estrutura etária de Ocypode quadrata (Fabricius, 1787) (Crustacea, Decapoda, Ocypodidae) em praia arenosa do litoral sul do Brasil [PDF]
Revista Brasileira De Biologia, 1999 N F Fontoura
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Mirror self-recognition in ghost crab (Ocypode quadrata)
Animal Cognition, 2023Mirror self-recognition has been examined primarily in vertebrate species, largely through the use of a mirror mark test. Recently, however, there has been growing interest in the notion that all animals likely need some form of self-representation to successfully interact with their environment (Kohda et al.
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Deposit-feeding by the ghost crab Ocypode quadrata (Fabricius)
Journal of Experimental Marine Biology and Ecology, 1981Abstract Observations using a videotape system on a secluded, Georgia, barrier beach revealed that the ghost crab Ocypode quadrata (Fabricius) exhibits diurnal deposit-feeding behavior similar to that manifested by the sand fiddler crab Uca pugilator (Bosc).
J.Roy Robertson, Pfeiffer J. William
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Within-Habitat Spatial Patterns of Ocypode Quadrata (Fabricius) (Decapoda Brachyura)
1979Michael J S Tevesz
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Recreational impacts on the distribution of ghost crabs Ocypode quadrata fab.
Biological Conservation, 1981Abstract Studies were conducted at Assateague Island, Maryland-Virginia, to determine the relative number of ghost crabs Ocypode quadrata Fab. on beaches subject to different recreational uses. The mean density of crabs per 0·1 ha plots was found to be 10 on an undisturbed beach, 19 on a pedestrian-impacted beach, 1 on a light off-road vehicle (ORV ...
Alan J. Steiner, Stephen P. Leatherman
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Evidence of marine debris usage by the ghost crab Ocypode quadrata (Fabricius, 1787)
Marine Pollution Bulletin, 2018Sandy beaches are sites of marine debris stranding, but the interaction of beach biota with waste is poorly studied. The objective of this study was to investigate whether the ghost crab Ocypode quadrata selects marine debris by types using a non-destructive method on sandy beaches of Southeastern Brazil.
Leonardo Lopes, Costa +2 more
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Eyestalk Movements Induced by Polarized Light in the Ghost Crab, Ocypode quadrata
Science, 1961Differential visual sensitivity to vertical and horizontal linear polarization is shown in the light-induced eyestalk deviations of Ocypode quadrata. Responses with the e -vector vertical averaged about 6° greater than those with e-vector horizontal.
H, SCHOENE, H, SCHOENE
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Structure and function of the hemocyanin from a semi-terrestrial crab,Ocypode quadrata
Journal of Comparative Physiology B, 1987Structural and functional studies of the hemocyanin of the semi-terrestrial ghost crab, Ocypode quadrata, demonstrate a variety of differences in comparison to the hemocyanin of aquatic crabs. These differences may be related to the terrestrial habit of this crab.
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