Results 31 to 40 of about 82,371 (292)

Top-down and bottom-up controls on southern New England salt marsh crab populations [PDF]

open access: yesPeerJ, 2018
Southern New England salt marsh vegetation and habitats are changing rapidly in response to sea-level rise. At the same time, fiddler crab (Uca spp.) distributions have expanded and purple marsh crab (Sesarma reticulatum) grazing on creekbank vegetation ...
Kenneth B. Raposa   +9 more
doaj   +2 more sources

Genetic population structure of the fiddler crab Austruca lactea (De Haan, 1835) based on mitochondrial DNA control region sequences

open access: yesCrustacean Research, 2020
. ̶ The fiddler crab, Austruca lactea inhabits tidal flat areas and is widely distributed across Japan, the Korean Peninsula, China, Taiwan and northern Vietnam. Fiddler crab habitat is being lost rapidly due to human impacts and this species is cur rently
Takenobu Tokuyama   +7 more
semanticscholar   +1 more source

Tissue accumulation and the effects of long-term dietary copper contamination on osmoregulation in the mudflat fiddler crab Minuca rapax (Crustacea, Ocypodidae)

open access: yesbioRxiv, 2020
We examined copper accumulation in the hemolymph, gills and hepatopancreas, and hemolymph osmolality, Na+ and Cl- concentrations, together with gill Na+/K+-ATPase and carbonic anhydrase activities, after dietary copper delivery (0, 100 or 500 µg Cu/g ...
Mariana V. Capparelli   +2 more
semanticscholar   +1 more source

The Effects of Fiddler Crabs (Uca sp) on C/N Ratio and Redox Potential of Soil in Mangrove Ecosystems

open access: yesResearch Journal of Life Science, 2017
Research has been done in Ketapang mangrove area of  Probolinggo city in months of September-November 2015. The objectives are to observe the fiddler crab community stucture and to analyze the effects of fiddler crabs on C/N ratio and redox potential of ...
Mulyanto Mulyanto, Herwati Umi
doaj   +1 more source

Neuronal processing of translational optic flow in the visual system of the shore crab Carcinus maenas [PDF]

open access: yes, 2011
This paper describes a search for neurones sensitive to optic flow in the visual system of the shore crab Carcinus maenas using a procedure developed from that of Krapp and Hengstenberg.
Bachmann   +107 more
core   +1 more source

Temperature Extremes and Sex-Related Physiology, Not Environmental Variability, Are Key in Explaining Thermal Sensitivity of Bimodal-Breathing Intertidal Crabs

open access: yesFrontiers in Marine Science, 2022
Global temperature increases are predicted to have pronounced negative effects on the metabolic performance of both terrestrial and aquatic organisms.
Pedro J. Jimenez   +4 more
doaj   +1 more source

The density of the Atlantic marsh fiddler crab (Minuca pugnax, Smith, 1870) (Decapoda: Brachyura: Ocypodidae) in its expanded range in the Gulf of Maine, USA

open access: yes, 2020
The Atlantic marsh fiddler crab, Minuca pugnax (Smith, 1870), is a climate migrant that recently expanded its range northward into the Gulf of Maine. We tracked the M.
Kayla S Martínez-Soto, D. S. Johnson
semanticscholar   +1 more source

The role of claw color in species recognition and mate choice in a fiddler crab

open access: yesBehavioral Ecology and Sociobiology, 2020
Many animal signals are brightly colored and convey information about species identity as well as information about individual conspecifics. Colorful bird and lizard signals have received much attention, and many studies have related specific spectral ...
M. Dyson   +4 more
semanticscholar   +1 more source

The visual ecology of fiddler crabs

open access: yesJournal of Comparative Physiology A, 2005
With their eyes on long vertical stalks, their panoramic visual field and their pronounced equatorial acute zone for vertical resolving power, the visual system of fiddler crabs is exquisitely tuned to the geometry of vision in the flat world of inter-tidal mudflats.
Zeil, Jochen, Hemmi, Jan
openaire   +4 more sources

Differences in the escape response of a grapsid crab in the field and in the laboratory [PDF]

open access: yes, 2015
Escape behaviours of prey animals are frequently used to study the neural control of behaviour. Escape responses are robust, fast, and can be reliably evoked under both field and laboratory conditions.
Hemmi, J. M., Tomsic, Daniel
core   +1 more source

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