Immediate effects of an oil spill on behavior of fiddler crabs (Uca pugnax)

1991 ◽  
Vol 20 (3) ◽  
pp. 404-409 ◽  
Author(s):  
Joanna Burger ◽  
John Brzorad ◽  
Michael Gochfeld
Keyword(s):  
Oil Spill ◽  
Uca Pugnax ◽  
Fiddler Crabs

Effects of washing fiddler crabs (Uca pugnax) following an oil spill

1992 ◽  
Vol 77 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Joanna Burger ◽  
Michael Gochfeld
Keyword(s):  
Oil Spill ◽  
Uca Pugnax ◽  
Fiddler Crabs

Effects of an oil spill on emergence and mortality in fiddler crabs Uca pugnax

1992 ◽  
Vol 22 (2) ◽  
pp. 107-115 ◽  
Author(s):  
Joanna Burger ◽  
John Brzorad ◽  
Michael Gochfeld
Keyword(s):  
Oil Spill ◽  
Uca Pugnax ◽  
Fiddler Crabs

Differential molt-induced atrophy in the dimorphic claws of male fiddler crabs,Uca pugnax

1992 ◽  
Vol 263 (1) ◽  
pp. 18-31 ◽  
Author(s):  
Safaa Z. M. Ismail ◽  
Donald L. Mykles
Keyword(s):  
Uca Pugnax ◽  
Fiddler Crabs

scholarly journals SOME CONSEQUENCES OF SEXUAL DIMORPHISM: FEEDING IN MALE AND FEMALE FIDDLER CRABS, UCA PUGNAX (SMITH)

1974 ◽  
Vol 147 (3) ◽  
pp. 652-660 ◽  
Author(s):  
IVAN VALIELA ◽  
DANIEL F. BABIEC ◽  
WILLIAM ATHERTON ◽  
SYBIL SEITZINGER ◽  
CHARLES KREBS
Keyword(s):  
Sexual Dimorphism ◽  
Uca Pugnax ◽  
Fiddler Crabs ◽  
Male And Female

Differences in the Use of Cheliped Autotomy by the Mud Fiddler Crab Uca Pugnax (Smith, 1870) (Decapoda, Ocypodidae) When Escaping Predation by the Blue Crab Callinectes Sapidus (Rathbun, 1896)

Crustaceana ◽  
2011 ◽  
Vol 84 (11) ◽  
pp. 1281-1293 ◽  
Author(s):  
M. C. Curran ◽  
M. M. Mace III
Keyword(s):  
Blue Crab ◽  
Visual Stimulus ◽  
Fiddler Crab ◽  
Callinectes Sapidus ◽  
Large Male ◽  
Effective Strategy ◽  
Uca Pugnax ◽  
Fiddler Crabs ◽  
Significant Difference ◽  
Major Cheliped

AbstractAutotomy of limbs has been observed for a variety of organisms and in some taxa has been shown to be an effective strategy for escaping predation. We investigated differences in the use of cheliped autotomy by small and large male fiddler crabs during predation events, and also assessed if autotomy of the major cheliped allowed male fiddler crabs to escape predation more often than females. The blue crab Callinectes sapidus was presented with 5 small and 5 large male mud fiddler crabs Uca pugnax (n = 60), and in a second experiment, 5 male and 5 female U. pugnax were presented to C. sapidus (n = 60). Large U. pugnax autotomized their major cheliped more often and survived compared to small U. pugnax (n = 22 pools, S = 96.5, p < 0.0001), although this difference was not significant when adjusted for the total number of attacks on each size (n = 22 pools, S = 45, p = 0.1467). There was no significant difference (n = 29 pools, S = 30.5, p = 0.4988) between the total number of unsuccessful attacks on male versus female U. pugnax. At least half of the males autotomized their major cheliped in unsuccessful attacks during the first (69%) and second (53%) experiments. The major cheliped of male U. pugnax is a prominent visual stimulus that may have initially attracted C. sapidus to this prey; however, autotomization potentially enabled male fiddler crabs to escape predation in over half of all unsuccessful attacks.

Sign in / Sign up

Export Citation Format

Share Document