Untersuchungen zur biologie, ökologie und physiologie indischer winkerkrabben

Altevogt, Rudolf

doi:10.1007/bf00437655

Cited by 85 publications

(19 citation statements)

References 44 publications

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“…Species possessing abundant spoon-tipped setae (sturdy setae with little spoonshaped tips) on their second maxillipeds are best adapted to feeding on sandy sediments with low organic content, while species feeding on muddy sediments with high organic content primarily have plumose setae (more flexible, featherlike setae) (Altevogt 1957, Miller 1961, Crane 1975, Icely & Jones 1978, Robertson & Newell 1982b. Microscopical examination showed that the number of spoon-tipped Fig.…”

Section: Crab Zonation Abundance and Biomassmentioning

confidence: 99%

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Comparative population dynamics of four fiddler crabs (Ocypodidae, genus Uca) from a North Brazilian mangrove ecosystem

Koch¹,

Wolff²,

Diele³

2005

Mar. Ecol. Prog. Ser.

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Section: Crab Zonation Abundance and Biomassmentioning

confidence: 99%

“…Macnae 1968, Warner 1969, Jones 1984, Frusher et al 1994, sediment characteristics such as silt/clay and organic content are especially important for deposit-feeders such as Uca spp. (Altevogt 1957, Miller 1961, Icely & Jones 1978, Frith & Brunnenmeister 1980, Robertson & Newell 1982a,b, Jaramillo & Lunecke 1988.…”

Section: Introductionmentioning

confidence: 99%

Comparative population dynamics of four fiddler crabs (Ocypodidae, genus Uca) from a North Brazilian mangrove ecosystem

Koch¹,

Wolff²,

Diele³

2005

Mar. Ecol. Prog. Ser.

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“…There are a great number of spoon-tipped setae in sand dwelling species, while crabs living in muddy habitats have an abundance of plumose setae on the second maxilliped (Crane, 1975). Altevogt (1957) observed that the spoontipped hairs aided in the elimination of coarse particles from the bucal cavity. Therefore, the characteristics of the second maxilliped exhibits the associations between crabs and sediment grains.…”

Section: Introductionmentioning

confidence: 97%

Spatial distribution of fiddler crabs (Genus <i>Uca</i>) in a tropical mangrove of northeast Brazil

Bezerra¹,

Dias²,

Santana³

et al. 2006

Sci. Mar.

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SUMMARY: The influence of abiotic factors on the spatial distribution of the fiddler crabs Uca leptodactyla, U. maracoani, U. rapax and U. thayeri was studied in a tropical mangrove of northeast Brazil. Eight transects were delimited in a mangrove area of the Pacoti River. On each transect, three 0.25 m 2 squares were sampled during spring low tide periods from September 2003 to August 2004. The sediment of the squares at each transect was analysed for grain size, organic matter and humidity. Morphology of the second maxilliped was studied considering the number of spoon-tipped setae to help explain the ecological distribution of the species. U. leptodactyla and U. rapax were found living in medium sand, U. thayeri was collected in fine and very fine sand, while U. maracoani was found living in very fine sand. U. leptodactyla showed a negative correlation with organic matter and humidity while U. thayeri showed a positive correlations for both factors. U. maracoani and U. rapax were not correlated with organic matter or humidity. The analysis of the second maxilliped revealed that U. leptodactyla and U. rapax show a high quantity of spoon-tipped setae while U. maracoani and U. thayeri show a greater quantity of plumose setae. Las propiedades físicas del sedimento, i.e., textura, contenido orgánico y humedad también fueron evaluadas en cada cuadrante. La morfología del segundo maxilipedio se estudió considerado el número de setas con punta de cuchara para explicar la distribución ecológica de las especies. U. leptodactyla y U. rapax fueron encontrados en los sedimentos gruesos, mientras U. thayeri y U. maracoani fueron encontrados en los sedimentos lodosos. La abundancia de U. leptodactyla mostró una correlación negativa con el contenido orgánico y la humedad mientras U. thayeri mostró una correlación positiva con ambos factores. La abundancia de U. rapax y U. maracoani no estuvo correlacionada con la materia orgánica y humedad. El análisis del segundo maxilipedio reveló que U. leptodactyla y U. rapax presentan una cantidad alta de setas con punta de cuchara mientras U. maracoani y U. thayeri presentaron una cantidad mayor de setas plumosas. KeywordsPalabras clave: género Uca, distribución espacial, factores abióticos, análisis del segundo maxilipedio, manglar tropical, Nordeste de Brasil.

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“…Altvogt 1957;Crane 1957Crane , 1958Salmon and Stout 1962;von Hagen 1962von Hagen , 1983von Hagen , 1993Salmon and Atsaides 1968;Backwell et al 1998;Oliveira and Custódio 1998;Latruffe et al 1999), but only a few have analysed waving structure in detail. For example, Hyatt (1977) found an ontogenic progression of the waving design (for both its temporal and spatial components) in Uca pugilator, suggesting that it could convey information regarding the sexual maturity of the displaying male; von Hagen (1993) used similar temporal parameters to compare the unusual female waving display of U. polita to that of conspecific males; and Murai and Backwell (2006) looked for differences between temporal and spatial components of the waving display of "visited by females" and "passed by females" males of U. perplexa.…”

Section: Introductionmentioning

confidence: 99%

Stereotypy and variation in the claw waving display of the fiddler crab Uca tangeri

2007

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We measured temporal and spatial components of the waving display in a Uca tangeri population to look for inter-individual differences in male waving structure that may convey information about individual identity. We found evidence that the spatial components of wave structure, especially "Maximum amplitude" are responsible for most of the between-male variation of the display. This variation could reflect differences in individuals' condition and/or could be used by conspecifics to discriminate amongst familiar and unfamiliar individuals.

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Untersuchungen zur biologie, ökologie und physiologie indischer winkerkrabben

Cited by 85 publications

References 44 publications

Comparative population dynamics of four fiddler crabs (Ocypodidae, genus Uca) from a North Brazilian mangrove ecosystem

Comparative population dynamics of four fiddler crabs (Ocypodidae, genus Uca) from a North Brazilian mangrove ecosystem

Spatial distribution of fiddler crabs (Genus <i>Uca</i>) in a tropical mangrove of northeast Brazil

Stereotypy and variation in the claw waving display of the fiddler crab Uca tangeri

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