Fossil and modern fiddler crabs (Uca tangeri: Ocypodidae) and their burrows from SW Spain: ichnologic and biogeographic implications
نویسندگان
چکیده
منابع مشابه
Reproductive periods and larval abundance patterns of the crabs Panopeus africanus and Uca tangeri in a shallow inlet ( SW Spain )
Adult females of Panopeus africanlis A. Milne Edwards, 1867 and Uca tangel-i (Eydoux, 1835) were sampled fortnightly from Apnl 1989 to November 1991 in the Rio San Pedro lnlet (SW Spaln) to estimate the seasonal timing of their reproductlve periods. Planktonic larvae were collected monthly from July 1991 to June 1992 by pumping during nocturnal flood and e b b spring tides to establish seasonal...
متن کاملWandering in male fiddler crabs (Uca tangeri): alternative reproductive tactic or a functional constraint?
The ‘aggressive wandering’ behaviour of male fiddler crabs is well documented in several species and is usually described as an apparently random movement through a population, punctuated by threats and combat directed at displaying males, and superficial burrow explorations. It has been suggested that wandering males are mainly low condition individuals with a regenerating major claw, unsucces...
متن کاملSpectral sensitivity of four species of fiddler crabs (Uca pugnax, Uca pugilator, Uca vomeris and Uca tangeri) measured by in situ microspectrophotometry.
Fiddler crabs have compound eyes that are structurally fairly well understood. However, there has been much debate regarding their spectral sensitivity and capacity to enable colour discrimination. We examined the visual pigments of two North-American species (Uca pugnax and U. pugilator), one species from the Indo-West Pacific (U. vomeris) and the only Eastern-Atlantic species (U. tangeri) of ...
متن کاملInfluence of natural settlement cues on the metamorphosis of fiddler crab megalopae, Uca vocator (Decapoda: Ocypodidae).
Megalopae of many decapod crab species accelerate their development time to metamorphosis (TTM) when exposed to natural physical and/or chemical cues characteristic of the parental habitat. In the present study, the influence of natural settlement cues on the moulting rates and development TTM in megalopae of the fiddler crab Uca vocator was investigated. The effects of mud from different habit...
متن کاملEffects of temephos (Abate 4E) on fiddler crabs (Uca pugnax and Uca minax) on a Delaware salt marsh.
The nontarget effects of temephos (as Abate 4E, 44.6% active ingredient) on fiddler crabs were examined on the salt marsh at Bombay Hook National Wildlife Refuge, near Dover, DE. Six 170 x 170-m plots were established; 3 were sprayed on 4 occasions at a rate of 1.5 fl oz/acre (0.054 kg active ingredient/ha) and 3 were controls. On each plot, marsh fiddler crab (Uca pugnax) populations were moni...
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ژورنال
عنوان ژورنال: Journal of Crustacean Biology
سال: 2013
ISSN: 0278-0372,1937-240X
DOI: 10.1163/1937240x-00002151