The strength of a female mate preference increases with predation risk

被引:34
作者
Kim, Tae Won [1 ,2 ,3 ]
Christy, John H. [3 ]
Dennenmoser, Stefan [3 ]
Choe, Jae C. [1 ]
机构
[1] Ewha Womans Univ, Div EcoSci, Seoul 120750, South Korea
[2] Seoul Natl Univ, Sch Biol Sci, Seoul 151747, South Korea
[3] Smithsonian Trop Res Inst, Naos Lab, Panama City, Panama
关键词
female preference; predation risk; sexual selection; sensory trap; fiddler crab; CRAB UCA-BEEBEI; MALE FIDDLER-CRABS; SEXUAL SELECTION; RECEIVER BIASES; PILLAR FUNCTION; SENSORY BIAS; CHOICE; COURTSHIP; BEHAVIOR; EVOLUTION;
D O I
10.1098/rspb.2008.1070
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
When females search for mates and their perceived risk of predation increases, they less often express preferences for males that use conspicuous courtship signals, relaxing sexual selection on production of these signals. Here, we report an apparent exception to this general pattern. Courting male fiddler crabs Uca beebei sometimes build pillars of mud at the openings to their burrows in which crabs mate. Females visit several males before they choose a mate by staying and breeding in their burrows, and they preferentially visit males with pillars. Previous studies suggested that this preference is based on a visual orientation behaviour that may reduce females' risk of predation while searching for a mate. We tested this idea by determining whether the female preference for males with pillars increases with perceived predation risk. We attracted avian predators to where crabs were courting and measured the rates that sexually receptive females visited courting males with and without mud pillars. Under elevated risk, females continued to search for mates and they showed a stronger relative preference for males with pillars. Thus, when predation risk is high, females may continue to express preferences that are under natural selection because they help females avoid predation, strengthening sexual selection for use of the preferred signal.
引用
收藏
页码:775 / 780
页数:6
相关论文
共 41 条
[1]   PILLAR BUILDING IN THE FIDDLER-CRAB UCA BEEBEI - EVIDENCE FOR A CONDITION DEPENDENT ORNAMENT [J].
BACKWELL, PRY ;
JENNIONS, MD ;
CHRISTY, JH ;
SCHOBER, U .
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY, 1995, 36 (03) :185-192
[2]   Overt female mate competition and preference for central males in a lekking antelope [J].
Bro-Jorgensen, J .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (14) :9290-9293
[3]   A TEST FOR RESOURCE-DEFENSE MATING IN THE FIDDLER-CRAB UCA BEEBEI [J].
CHRISTY, JH ;
SCHOBER, UM .
ANIMAL BEHAVIOUR, 1994, 48 (04) :795-802
[4]  
CHRISTY JH, 1988, ETHOLOGY, V78, P113
[5]  
CHRISTY JH, 1988, ETHOLOGY, V78, P53
[6]   FEMALE CHOICE AND THE BREEDING-BEHAVIOR OF THE FIDDLER-CRAB UCA-BEEBEI [J].
CHRISTY, JH .
JOURNAL OF CRUSTACEAN BIOLOGY, 1987, 7 (04) :624-635
[7]   MIMICRY, MATE CHOICE, AND THE SENSORY TRAP HYPOTHESIS [J].
CHRISTY, JH .
AMERICAN NATURALIST, 1995, 146 (02) :171-181
[8]   Interspecific attractiveness of structures built by courting male fiddler crabs: experimental evidence of a sensory trap [J].
Christy, JH ;
Backwell, PRY ;
Schober, U .
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY, 2003, 53 (02) :84-91
[9]   Sexual selection for structure building by courting male fiddler crabs: an experimental study of behavioral mechanisms [J].
Christy, JH ;
Backwell, PRY ;
Goshima, S ;
Kreuter, T .
BEHAVIORAL ECOLOGY, 2002, 13 (03) :366-374
[10]  
Christy John H., 2007, P211