Results 111 to 120 of about 179 (138)

Within-Habitat Spatial Patterns of Ocypode Quadrata (Fabricius) (Decapoda Brachyura)

1979
Michael J. S. Tevesz
exaly   +2 more sources

Seasonal variation of energy metabolism in ghost crab Ocypode quadrata at Siriú Beach (Brazil)

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2007
The aim of this study was to analyze the seasonal variations of carbohydrate and lipid metabolism of the ghost crab Ocypode quadrata (Fabricius, 1787) on a sandy beach in the southern region of Brazil. Crabs and hemolymph samples were collected monthly in the field. Hepatopancreas, gills, gonads and claw muscles were used for glycogen determination. In
Anapaula Sommer, Vinagre, Ana Paula, Nunes do Amaral, Fabiana Pinto, Ribarcki, Eliane, Fraga da Silveira, Eduardo, Périco   +4 more
openaire   +2 more sources

Structure and function of the hemocyanin from a semi-terrestrial crab,Ocypode quadrata

Journal of Comparative Physiology B, 1987
Structural 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.
openaire   +2 more sources

Combined impacts of natural and anthropogenic disturbances on the bioindicator Ocypode quadrata (Fabricius, 1787)

Journal of Experimental Marine Biology and Ecology, 2019
Abstract Intense natural disturbances can dramatically affect populations in various ecosystems and existence of human influences can make the impacts of natural disturbance even greater by reducing the resilience of the populations. Here, we determine how the impacts of natural and anthropogenic disturbances alter population structure of a ...
Mustafa R. Gül, Blaine D. Griffen
openaire   +1 more source

Spatial Patterns of Ocypode Quadrata: a Re-Evaluation (Decapoda, Brachyura)

Crustaceana, 1981
Le Roi, O., 1905. Zwei neue parasitische Cirripedien aus der Gruppe der Ascothoracida. Zool. Anz., 29: 399-401. Okada, Y. K., 1925. Contribution ? l'?tude des Cirrip?des Ascothoraciques. I. Notes sur le Dendrogaster arborescens Le Roi; ?tablissement d'un nouveau genre. Bull. Mus. Nat. Hist, nat., Paris, 31: 364-371. Yosii, N., 1931. Note on Myriocladus.
openaire   +1 more source

Across-shore distribution of Ocypode quadrata burrows in relation to beach features and human disturbance

Journal of Natural History, 2018
Spatial distribution patterns of the ghost crab Ocypode quadrata were analysed using different approaches at one disturbed and two preserved reflective sandy beaches of the Mexican Caribbean.
Frank A. Ocaña, Alberto De Jesús-Navarrete, Héctor A. Hernández-Arana   +2 more
openaire   +1 more source

Population density and activity pattern of the ghost crab, Ocypode quadrata, in Veracruz, Mexico

Crustaceana, 2007
The population density of the ghost crab, Ocypode quadrata and its activity pattern were studied in Montepio Beach, Veracruz, Mexico, which is considered a relatively undisturbed beach. Population density estimates were obtained using Wiegert's quadrat method in six samplings from June 2002 to March 2004, and the activity pattern was determined through
Elizabeth Valero-Pacheco, Fernando Alvarez, Luis Abarca-Arenas, Mateo Escobar   +3 more
openaire   +1 more source

Reproductive Cycling in the Ghost Crab, Ocypode Quadrata (Fabr.) (Brachyura, Ocypodidae)

Crustaceana, 1972
[L'activite reproductrice cyclique du Crabe Ocypode quadrata (Fabr.), de la cote centrale du Texas, a ete determinee d'apres l'analyse de la maturite et de l'activite reproductrice des femelles apres la puberte (la largeur de la carapace est superieure a 25,0 mm) pendant une annee. Les Crabes sont actifs sur la plage depuis mars jusqu'a decembre.
openaire   +1 more source

Ghost crab (Ocypode quadrata) modify their behavior during mirror exposure

Behavioural Processes
Recently, ghost crabs (Ocypode quadrata) were shown to exhibit behavior consistent with passing the mark test, which implies the capacity for self-recognition. Considering this, it seems reasonable to suggest these animals can also distinguish their mirror image from different social stimuli, such as live conspecifics.
openaire   +2 more sources

Gustatory Responses of Ghost Crab Ocypode quadrata to Seawater Extracts and Chemical Fractions of Natural Stimuli

Journal of Chemical Ecology, 1999
The efficacy of seawater-extracted fresh and decomposing blue crab (Callinectes sapidus) claw muscle homogenates as stimulants of feeding behavior by the ghost crab (Ocypode quadrata) was tested with cheliped flexion as a bioassay. Stimulatory components of extracts were heat-stable and
Thomas J Trott
exaly   +2 more sources