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MODELING ACTIVITY RHYTHMS IN FIDDLER CRABS
Chronobiology International, 2009Burrowing crabs of the genus Uca inhabit tidal mudflats and beaches. They feed actively during low tide and remain in their burrows when the tide is high. The timing of this activity has been shown to persist in the absence of external light and tidal cues, indicating the presence of an internal timing mechanism.
Caz M. Taylor +3 more
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Displacement Activities in Fiddler Crabs
Nature, 1955ACCORDING to Tinbergen1, a “displacement activity is an activity belonging to the executive motor pattern of an instinct other than the instinct (s) activated”, and, according to Bastock, Morris and Moynihan2, such activities would seem to take place in two quite different situations: “(1) Displacement activities may be performed by an animal in which ...
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Male-biased predation of a fiddler crab
Animal Behaviour, 2001Great-tailed grackles, Quiscalus mexicanus, prey on fiddler crabs, Uca beebei, either by running straight at them or by running past them then angling sharply back to strike. Grackles that used angled runs caught only males and were twice as successful as birds that used straight runs and caught equal numbers of males and females.
Koga, Tsunenori +4 more
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Acoustic Interneurons of Fiddler and Ghost Crabs
Physiological Zoology, 1976The properties of acoustic interneurons in fiddler (Uca pugilator and U. minax) and ghost (Ocypode quadrata) crabs are described, as revealed by tests with pure tones. Three types of interneurons were present in all species: tonic, which fired for the duration of the stimulus; phasic, which fired briefly at the onset of stimulation; and inhibited, in ...
Michael Salmon, Kenneth W. Horch
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Simulated fiddler-crab sediment mixing
Journal of Marine Research, 2007Using a lattice-automaton model, we simulate the effects of fiddler crabs on the distribution of excess Pb in marsh sediments. Three previously-identified modes of bioturbation are investigated: (1) removal-and-fill, where material is excavated to the sediment-water interface and burrows, when abandoned, are subsequently filled by surface material, (2)
Bernard P. Boudreau +2 more
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Temperature variation in fiddler crab microhabitats
Journal of Experimental Marine Biology and Ecology, 1976Abstract Measurements of the thermal environment at the microhabitat level provided data to evaluate the seasonal, diel, and spatial patterns of activity for non-tidal fiddler crabs ( Ucapanacea and U. virens ) on Mustang Island, Texas. Field populations showed nocturnal and diurnal maxima of surface activity during the warm summer months ...
Lawrence W. Powers, James F. Cole
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Ecology, 2019
The diversity and composition of local communities depends strongly on the pool of species that have been able to colonize that community from elsewhere.
C. Cuellar‐Gempeler, M. Leibold
semanticscholar +1 more source
The diversity and composition of local communities depends strongly on the pool of species that have been able to colonize that community from elsewhere.
C. Cuellar‐Gempeler, M. Leibold
semanticscholar +1 more source
Fiddler crab burrowing increases salt marsh greenhouse gas emissions
Biogeochemistry, 2022Adri K. Grow +2 more
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Biomarkers, 2018
Context: Fiddler crabs are important to the ecology of estuarine systems around the world, however, few studies have incorporated them as bioindicators.
B. Yáñez-Rivera +8 more
semanticscholar +1 more source
Context: Fiddler crabs are important to the ecology of estuarine systems around the world, however, few studies have incorporated them as bioindicators.
B. Yáñez-Rivera +8 more
semanticscholar +1 more source