The vibrational signals that male fiddler crabs (Uca lactea) use to attract females into their burrows

2016 ◽  
Vol 103 (5-6) ◽  
Author(s):  
Fumio Takeshita ◽  
Minoru Murai
Keyword(s):  
Fiddler Crabs ◽  
Vibrational Signals ◽  
Uca Lactea

Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific

Zootaxa ◽  
2010 ◽  
Vol 2500 (1) ◽  
pp. 1 ◽  
Author(s):  
REZA NADERLOO ◽  
MICHAEL TÜRKAY ◽  
†HUI-LIAN CHEN
Keyword(s):  
Regional Distribution ◽  
Taxonomic Revision ◽  
Species Group ◽  
Fiddler Crabs ◽  
West Pacific ◽  
Uca Lactea

The Indo-West Pacific broad-front fiddler crabs, formerly attributed to the "lactea species-group" are revised. The subgenus Uca (Austruca) Bott, 1973, is here revived for accommodating the informal "lactea species-group". Uca (Austruca) presently covers 7 species, partly with a restricted regional distribution, of which one (Uca cryptica sp. nov. from Indonesia) is new to science.

Mating investment of male fiddler crabs, Uca lactea

1988 ◽  
Vol 36 (4) ◽  
pp. 1249-1251 ◽  
Author(s):  
Seiji Goshima ◽  
Minoru Murai
Keyword(s):  
Fiddler Crabs ◽  
Uca Lactea

scholarly journals Reproductive Biology and Bioturbatory Activities of Two Sympatric Species of Fiddler Crabs Uca lactea annulipes and Uca triangularis bengali (Decopada : Ocypodidae) at the East Midnapore Coastal Belt of West Bengal, India

2014 ◽  
Vol 5 (2) ◽  
pp. 106 ◽  
Author(s):  
Subhasish Chatterjee ◽  
Tapas Kumar Das ◽  
Susanta Kumar Chakraborty
Keyword(s):  
West Bengal ◽  
Reproductive Potential ◽  
Sympatric Species ◽  
Ecosystem Dynamics ◽  
Fiddler Crabs ◽  
Estuarine Ecosystem ◽  
Coastal Belt ◽  
The Social ◽  
Uca Lactea

Two sympatric species of fiddler crabs viz. Uca lactea annulipes and Uca triangularis bengali belonging to order decapoda, family ocypodidae have been taken into consideration in respect of their habitat preference, sex ratio, fecundity and role of bioturbatory activities in sustaining the coastal-estuarine-ecosystem dynamics at an ecotone (Talsari) located in the Midnapore (East) coastal belt of West Bengal, India. A distinct segregation of habitats of these two species was evident from this field study. In general, monthly sex ratios were a clearly male biased for both species. Reproductive potential and intensity of the studied fiddler crabs have been measured by quantifying the relative frequency of ovigerous females and their fecundities. These two crabs have been to be as excellent bioturbator mediators and their bioturbatory activities were found to alter geochemistry of sediments by way of making semidomes (only male of U. lactea annulipes) and mudballs (both sexes of U. triangularis bengali). These bioturbatory structures used to play some role in the social as well sexual interactions of both species.

scholarly journals Study of Fiddler Crab (Uca sp.)Community in Mangrove Ecosystem of Mangrove Areas Curahsawo Probolinggo, East Java

2019 ◽  
Vol 10 (1) ◽  
pp. 31-37
Author(s):  
Agung Riswandi ◽  
Endang Yuli H ◽  
Mulyanto Mulyanto
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Texture ◽  
Fiddler Crab ◽  
Sandy Loam ◽  
Distribution Patterns ◽  
Mangrove Ecosystem ◽  
Sampling Point ◽  
Fiddler Crabs ◽  
Uca Lactea

Fiddler crab (Uca sp.)one of the crabs that inhabit the intertidal area, especially around the mangrove forest research was conducted in the mangrove areas Curahsawo, district of Gending, Probolinggo, East Java in April 2017. The aim of this study is to determine the structure community violin crabs in the mangrove areas Curahsawo Probolinggo. The measured parameters namely pH, soil organic matter and soil texture. Sampling point there are three stations, namely station 1 is mangrove area, station 2 is in the pond area, the station 3 is the estuary area. Results of measurement of environmental quality at the location of research is soil pH among 7.09 to 8.03, soil organic matter among 1.027% to 3.106%, and the type of soil is sandy clay and dusty clay. fiddler crabs are found in mangrove ecosystem Curahsawo there are 6 types of Uca rosea, Uca lactea, vocans Uca, Uca perplexa, dussumieri Uca, Uca demani. The highest density of crabs is Uca perplexa as much as 16 ind/m2, the lowest type of Uca demani 4 ind/m2. Value diversity fiddler crabs in mangrove ecosystem Sawo relatively standart is 1,56. The value of existing dominance is 0,96. Index violin crab distribution patterns in the Mangrove Ecosystem Munitions Sawo is uniform for Uca lactea, Uca vocans, Uca dussumieri , Uca demani and clumped to Uca rosea and Uca perplexa. The result of the spread of  fiddler crab to the type of soil texture is very visible on the Uca perplexa since spread across all points of soil sampling with the number 6 ind/m2 to 16 ind/m2 in the texture of  clay and sandy loam.

scholarly journals Variasi Morfologi dan Kelimpahan Kepiting Uca spp. di Kawasan Mangrove, Tuban-Bali

2017 ◽  
Vol 4 (2) ◽  
pp. 236
Author(s):  
Yuli Krisnawati ◽  
I Wayan Arthana ◽  
Ayu Putu Wiweka Krisna Dewi
Keyword(s):  
Organic Matter ◽  
Organic Matter Content ◽  
Road Construction ◽  
Strong Relationship ◽  
Matter Content ◽  
Fiddler Crabs ◽  
Toll Road ◽  
Mangrove Area ◽  
Uca Lactea

Fiddler crabs (Uca spp.) are one of the mangrove fauna that has an important role of food chain within the scope of mangrove, which is as a deposit eater. The mangrove area in Kampoeng Kepiting has been damaged due to reclamation for Bali Mandara toll road construction, which can interfere the survival/existence of Fiddler crabs. Therefore, it is necessary to do a research concerning the abundance of Fiddler Crabs in Kampoeng Kepiting mangrove area. The aim of this study is to determine the type and abundance of Fiddler crabs and to discover the coherency among Fiddler Crabs abundance in the manner of c-organic matter content in Kampoeng Kepiting area. Fiddler crabs samples were carried out using 1×1 meter quadrant transect by digging as deep as 30 cm. The abundance of Fiddler crabs was analyzed under the Krebs equation. The results from this study indicate Fiddler crabs were found in Kampoeng Kepiting area ,i.e. Uca demani, Uca coarctata, Uca dussumieri, Uca bellator, Uca lactea perplexa, Uca tetragonon, Uca chlorophthalmus crassipes, Uca lactea annulipes, Uca triangularis, and Uca vocans. The highest Fiddler crabs abundance were found at station 4 which is 72±4,2 ind/m2, whilst the abundance of Fiddler crabs (Uca spp.) at station 5 is (33±1,2 ind/m2). The c-organic matter content has a strong relationship with the abundance of Fiddler crabs in Kampoeng Kepiting mangrove area (r = 0,91). This study shows that mangrove conditions in Kampoeng Kepiting are still able to support Fiddler Crabs (Uca spp.) existence.

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