+ Translate
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

The influence of sexual selection and male agility on sexual size dimorphism in bustards (Otididae)

The influence of sexual selection and male agility on sexual size dimorphism in bustards (Otididae)

Animal Behaviour 71(Part 4): 833-838

ISSN/ISBN: 0003-3472

DOI: 10.1016/j.anbehav.2005.06.013

Bustards vary considerably in sexual size dimorphism (SSD), ranging from reversed-dimorphic species (i.e. male < female) through monomorphic species to species in which an adult male can be three times heavier than an adult female. We used this unusual interspecific variation to test functional hypotheses of SSD using phylogenetic comparative methods. We found a strong allometric relation between SSD and body size that is consistent with Rensch's rule. We then tested whether the intensity of mating competition and the agility of male displays relate to SSD. First, the intensity of mating competition hypothesis predicts that males should be larger than females in species in which the males compete intensely for mates. As predicted, evolutionary changes towards more polygynous mating systems in bustards were associated with relatively larger males. Second, our results are also consistent with the aerial agility hypothesis, since in agile bustards the males tend to be smaller than females, whereas in nonagile bustards the males are usually larger. We also found that these two types of sexual selection have independent and statistically significant influences on SSD. We conclude that SSD in bustards is most consistent with sexual selection, and is influenced by both the intensity of sexual selection and the agility of male displays. Other hypotheses, however, such as fertility selection acting on females and differential use of niches by males and females remain untested.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 012661877

Download citation: RISBibTeXText

Related references

Sexual selection on male size drives the evolution of male-biased sexual size dimorphism via the prolongation of male development. Evolution; International Journal of Organic Evolution 70(6): 1189-1199, 2016

Variance in male reproductive success and sexual size dimorphism in pinnipeds: testing an assumption of sexual selection theory. Mammal Review 44(2): 88-93, 2014

Sexual size dimorphism in shorebirds, gulls, and alcids: the influence of sexual and natural selection. Evolution; International Journal of Organic Evolution 54(4): 1404-1413, 2000

The influence of sexual selection and ecological constraints on an extreme sexual size dimorphism in a cichlid. Animal Behaviour 70(3): 539-549, 2005

The influence of sexual dimorphism in body size and mouth morphology on diet selection and sexual segregation in cervids. Acta Veterinaria Hungarica 46(3): 357-367, 1998

Mating system, male territoriality and agility as predictors of the evolution of sexual size dimorphism in hummingbirds (Aves: Trochilidae). Behaviour 154(13-15): 1297-1341, 2017

Male-biased size dimorphism in ichneumonine wasps (Hymenoptera: Ichneumonidae) - the role of sexual selection for large male size. Ecological Entomology 30(3): 342-349, 2005

Evaluating the effects of sexual selection on sexual size dimorphism in olive baboons and macaques using an iterative selection model. American Journal of Primatology 60(Suppl 1): 52-53, 2003

Sexual Size Dimorphism in Seabirds: Sexual Selection, Fecundity Selection and Differential Niche-Utilisation. Oikos 113(3): 385-394, 2006

Sexual size dimorphism in seabirds: sexual selection, fecundity selection and differential niche-utilisation. Oikos 113(3): 385-394, 2006

Population variation in sexual selection and its effect on size allometry in two dung fly species with contrasting sexual size dimorphism. Evolution; International Journal of Organic Evolution 56(2): 307-321, 2002

Body size and sexual size dimorphism in marine iguanas fluctuate as a result of opposing natural and sexual selection: An island comparison. Evolution 51(3): 922-936, 1997

Body Size and Sexual Size Dimorphism in Marine Iguanas Fluctuate as a Result of Opposing Natural and Sexual Selection: An Island Comparison. Evolution; International Journal of Organic Evolution 51(3): 922-936, 1997

Selection for increased male size predicts variation in sexual size dimorphism among fish species. Proceedings. Biological Sciences 287(1918): 20192640, 2020

Sexual selection explains Rensch's rule of allometry for sexual size dimorphism. Proceedings. Biological Sciences 274(1628): 2971-2979, 2007