Mate choice in lekking sage grouse revisited: the roles of vocal display, female site fidelity, and copying

Gibson, Robert B.; Bradbury, Jack W.; Vehrencamp, Sandra L.

doi:10.1093/beheco/2.2.165

Cited by 200 publications

(149 citation statements)

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“…The study by Hedrick (2007) also predicts that a ratio close to 0.6 translates to effectively 10 times as many mating females than males. Such a ratio is a reasonable expectation for sage-grouse given behavioral and molecular studies documenting similar rates of reproductive skew in these species (Wiley, 1974;Gibson and Bradbury, 1986;Gibson et al, 1991;Semple et al, 2001;Bush et al, 2010). Our ratios for the two species of sage-grouse, however, were even lower (0.54 for C. urophasianus and 0.38 for C. minimus) and similar to the joint estimate of N eZ /N eA (0.42) for both species based on divergence (F ST ).…”

Section: Discussionsupporting

confidence: 80%

“…Fast evolution of the Z chromosome is also attributable to genetic drift and a growing body of work has shown this empirically in birds (Vicoso and Charlesworth, 2009;Mank et al, 2010a,b;Wang et al, 2014). Behavioral observations of the lek mating system of sage-grouse have led to the suggestion that all females attending a given lek typically mate with one or two dominant males (Wiley, 1974;Gibson and Bradbury, 1986;Gibson et al, 1991), although more recent molecular studies have shown that this reproductive skew may be too high and that females may mate with additional males off the lek (Semple et al, 2001;Bush et al, 2010). Either way, the mating system of sage-grouse provides a prime example of a species with extreme reproductive skew that likely is reflected in patterns of Z-linked divergence and may be the result of genetic drift.…”

Section: Discussionmentioning

confidence: 99%

“…Both species of sage-grouse are lekking birds with highly skewed mating systems (Wiley, 1974;Gibson and Bradbury, 1986;Gibson et al, 1991), and males of the two species differ in plumage and display behavior, traits that are strongly sexually selected (Young et al, 1994). Reduced effective population size and the fitness effects of sexually selected traits can potentially drive morphological and behavioral evolution faster than fixed differences accrue at unlinked neutral sites (Spaulding, 2007;Oyler-McCance et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Z chromosome divergence, polymorphism and relative effective population size in a genus of lekking birds

et al. 2015

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Sex chromosomes contribute disproportionately to species boundaries as they diverge faster than autosomes and often have reduced diversity. Their hemizygous nature contributes to faster divergence and reduced diversity, as do some types of selection. In birds, other factors (mating system and bottlenecks) can further decrease the effective population size of Z-linked loci and accelerate divergence (Fast-Z). We assessed Z-linked divergence and effective population sizes for two polygynous sage-grouse species and compared them to estimates from birds with various mating systems. We found lower diversity and higher F ST for Z-linked loci than for autosomes, as expected. The π Z /π A ratio was 0.38 in Centrocercus minimus, 0.48 in Centrocercus urophasianus and 0.59 in a diverged, parapatric population of C. urophasianus, a broad range given the mating system among these groups is presumably equivalent. The full data set had unequal males and females across groups, so we compared an equally balanced reduced set of C. minimus and individuals pooled from both C. urophasianus subgroups recovering similar estimates: 0.54 for C. urophasianus and 0.38 for C. minimus. We provide further evidence that N eZ /N eA in birds is often lower than expected under random mating or monogamy. The lower ratio in C. minimus could be a consequence of stronger selection or drift acting on Z loci during speciation, as this species differs strongly from C. urophasianus in sexually selected characters with minimal mitochondrial divergence. As C. minimus also exhibited lower genomic diversity, it is possible that a more severe demographic history may contribute to its lower ratio.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Z chromosome divergence, polymorphism and relative effective population size in a genus of lekking birds

et al. 2015

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“…Bradbury and Gibson, 1983;Gibson et al, 1991;Hoglund et al, 1990Hoglund et al, , 1995. In grouse, the lekking birds most frequently studied in this regard, a social explanation for the singular success of some males is made more likely by females' habit of visiting leks both numerous times and in groups, thus providing ample opportunity for social influences on mate choice to occur.…”

Section: Studies Of Free-living Animalsmentioning

confidence: 99%

“…The latter result is consistent with the hypothesis that females' mate choices were not independent, though it tells us little about what form non-independence takes in mate selection by female black grouse. Gibson et al (1991) studied the mate choices of female sage grouse (Centrocercus urophasianus) on two leks over several years. They discovered no consistency across either years or leks in the physical characteristics of preferred males.…”

Section: Studies Of Free-living Animalsmentioning

confidence: 99%

Evidence of social effects on mate choice in vertebrates

Galef

White

2000

Behavioural Processes

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Study of determinants of mate selection by animals has a long history in evolutionary biology and behavioural ecology. However, only during the past decade have investigators begun to conduct experiments exploring the various ways in which observation of the behaviour of others might influence mate selection. Here, we review both field and laboratory studies of behavioural processes that underlie non-independence in mate choice, discussing both direct and indirect social influences on mate selection. We focus on laboratory studies in which guppies and Japanese quail, species that have received greatest attention from investigators, have served as subjects. Although much is now known about how public information can affect mate selection in controlled environments, there are still significant gaps in our knowledge of whether and how such information contributes to mate selections by members of free-living populations.

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Estimating survival and adoption rates of dependent juveniles

Street

Riecke

Williams

et al. 2022

Ecology and Evolution

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Population growth and fitness are typically most sensitive to adult survival in long‐lived species, but variation in recruitment often explains most of the variation in fitness, as past selection has canalized adult survival. Estimating juvenile survival until age of independence has proven challenging, because marking individuals in this age class may directly affect survival. For Greater Sage‐grouse, uniquely marking juveniles in the first days of life likely results in adverse effects to survival, detection of juveniles is not perfect, and females adopt juveniles from other parents. These challenges are encountered by researchers studying avian and mammalian species with similar life histories, yet methods do not exist that explicitly estimate all these components of the recruitment process. We propose a novel data collection method and demographic model to simultaneously estimate rates of detection, survival, and adoption of juvenile individuals. Using multiple cameras to film the beginning of juvenile activity on specific days, we obtained counts of juveniles associated with marked females. Increases of juveniles to broods provided information that enabled us to estimate rates of adoption that can be applied at the population level. Losses from broods informed apparent survival. These losses could be attributed to death, or they could be chicks that were adopted by other females. We found evidence that apparent survival of juveniles was influenced by localized weather patterns when chicks were young. Similarly, we found that young chicks were more susceptible to the adverse effect of attending females being flushed by an observer. Both of these patterns diminished quickly as chicks aged. We provide the first‐ever estimates of interval‐specific adoption rates. Our results suggest that researchers should be cautious when designing studies to estimate juvenile survival. More importantly, they provide insight into adoption, a behavior that has been known to exist for decades.

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Mate choice in lekking sage grouse revisited: the roles of vocal display, female site fidelity, and copying

Cited by 200 publications

References 46 publications

Z chromosome divergence, polymorphism and relative effective population size in a genus of lekking birds

Z chromosome divergence, polymorphism and relative effective population size in a genus of lekking birds

Evidence of social effects on mate choice in vertebrates

Estimating survival and adoption rates of dependent juveniles

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