Female mimicry and resource defense polygyny by males of a tropical rove beetle, Leistotrophus versicolor (Coleoptera : Staphylinidae)

  title={Female mimicry and resource defense polygyny by males of a tropical rove beetle, Leistotrophus versicolor (Coleoptera : Staphylinidae)},
  author={Adrian B. Forsyth and John Alcock},
  journal={Behavioral Ecology and Sociobiology},
SummaryAdults of the staphylinid beetle Leistotrophus versicolor Grav. aggregate at vertebrate dung and carrion where males and females forage for adult Diptera. Some males aggressively exclude others from dung and carrion. Winners in male combat gain access to many females, which are often receptive at these foraging sites. The mating system can be categorized as resource defense polygyny. Males vary greatly in size, are larger than females on average, and have allometrically enlarged… 
The mating chances of small males of the cerambycid beetleTrachyderes mandibularis differ in different environments (Coleoptera: Cerambycidae)
On saguaros, minor males successfully obtained mates through scramble competition while avoiding direct physical competition with larger, territorial major males, and may have succeeded in acquiring mates in part because there were many more ripe saguaro fruits than beetles, which made it impossible for larger major males to monopolize females effectively under these conditions.
Costs of female odour in males of the parasitic wasp Lariophagus distinguendus (Hymenoptera: Pteromalidae)
It is suggested that these costs have favoured the evolution of the pheromone deactivation mechanism in L. distinguendus males, and the deactivation of the signal in males might have caused a shift of specificity of the chemical signal from the species level to the sex level.
Mating competition and parentage assessment in Ptomascopus morio (Coleoptera: Silphidae): A case for resource defense polygyny
The hypothesis that large beetles were better competitors and sired a larger share of the offspring were supported and tested and paternity analysis revealed that larger males had higher paternity than smaller males, but the number of eggs produced by each female did not differ between large and small females.
Allometry and sexual selection of male weaponry in Wellington tree weta, Hemideina crassidens
A statistical examination of sexual dimorphism is presented, showing that traits related to head size are on average significantly larger in males, whereas trait related to body size is on averageificantly larger in females.
Male tactics and reproductive success in the harem polygynous bat Saccopteryx bilineata
Variation in reproductive success was high within both male tactics, and the reproductive success of some peripherals was comparable to territorials, but, on average, the reproductivesuccess of territorials was more than twice as high.
Flexible alternative mating tactics by New Zealand giraffe weevils
Giraffe weevils are a rare example of a species that has evolved ARTs characterized by highly context-dependent behavior in which sneaking and aggressive behaviors are both used by small males in relation to opponent body size.
Male dimorphism of a neotropical arachnid: harem size, sneaker opportunities, and gonadal investment
The high frequency of successful invasions by sneakers and hence the high sperm competition risk for both morphs may explain the similarity in gonadal investment between male morphs.
Ambushing and prey-luring as alternative foraging tactics of the fly-catching rove beetleLeistotrophus versicolor (Coleoptera: Staphylinidae)
The tropical forest rove beetle Leistotrophus versicoloris a specialized obligate predator of adult Diptera that exhibits unusual flexibility and complexity in the capture of its prey. Individuals
Alternative Mating Strategy of Small Male Megacopta punctatissima (Hemiptera: Plataspidae) in the Presence of Large Intraspecific Males
It is suggested that small males adopt an alternative mating strategy in which their courtship behavior is the same as that of large males, but their decision to court females depends on the presence or absence of large rival males.
Asymmetrical male mandibular horns and mating behavior in Agathidium Panzer (Coleoptera: Leiodidae)
Horned males of some species of Agathidium Panzer have a prominent horn on the dorsal surface of the left mandible, which appears better able to dislodge opponents.


Post-copulatory aggression toward their mates by males of the rove beetle Leistotrophus versicolor (Coleoptera: Staphylinidae)
Rove beetles (Leistotrophus versicolor) forage and mate at dung and carrion in the riparian forest of northwestern Costa Rica and test four hypotheses on the adaptive value of male behavior, finding that the sperm competition hypothesis withstands testing.
Cuticular hydrocarbons regulate mate recognition, male aggression, and female choice of the rove beetle,Aleochara curtula
Modulation of intermale aggression by production of the female pheromone was shown by (1) reduction of the alkene titer of females kept at elevated temperatures, (2) treating live males with the synthetic female peromone mixture, and (3) gradual amputation of male antennal segments.
Delayed Maturation in Passerine Plumages and the Deceptive Acquisition of Resources
We propose that the female-like plumage worn by some male birds in their first potential breeding season has evolved to facilitate breeding when 1-yr old through the deception of older males. By
Alternative reproductive tactics in the territorial damselflyCalopteryx maculata: sneaking by older males
It is suggested that sneaking, in this species, is a “make the best of a bad situation” tactic adopted when intense male-male competition forced older males to abandon territoriality.
On the Significance of Pseudofemale Behavior in the Neotropical Cockroach Genera Blaberus, Archimandrita and Byrsotria
The basic constituents of successful courtship behavior in most species of cockroaches studied thus far are as follows: male contacts the female, genital connection is achieved, and the pair execute a turning operation to assume the opposed copulatory position.
Female mimicry in male bluegill sunfish—a genetic polymorphism?
This letter describes two reproductive patterns in bluegill sunfish, a nesting male strategy and a female mimic strategy, and demonstrates that an individual male does not practise both reproductive strategies.
Alternative male life histories in bluegill sunfish.
  • M. Gross, E. Charnov
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1980
A natural selection model is developed to predict the equilibrium frequencies of the two male types: cuckoldry or parental care and a preliminary test of the model provides qualitative agreement.
Social organization and foraging in emballonurid bats
Application of the general model cannot be simplified by measurement of a few variables such as body size or group size, but instead will generally require actual measurements of the critical resource dispersion parameters in the field.
Adaptive Female-Mimicking Behavior in a Scorpionfly
This study provides a clear example of female-mimicking behavior by males in insects and evaluates quantitatively the adaptive significance of this behavior, which is poorly understood in many other