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Data from: Climate, demography, and lek stability in an Amazonian bird
- 负责人：
- DOI：
- doi:10.5061/dryad.5d23f
- 摘要：
- Lekking is a rare, but iconic mating system where polygynous males aggregate and perform group displays to attract females. Existing theory
Data from: Z chromosome divergence, polymorphism, and relative effective population size in a genus of lekking birds
- 负责人：
- 关键词：
- fast-z;sex chromosome evolution;lekking grouse;Centrocercus minimus;Centrocercus urophasianus;SNPs
- DOI：
- doi:10.5061/dryad.75n5q
- 摘要：
- 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 FST for Z-linked loci than for autosomes, as expected. The ?Z/?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 NeZ/NeA 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.
Data from: Testosterone modulates status-specific patterns of cooperation in a social network
- 负责人：
- DOI：
- doi:10.5061/dryad.fm129s7
- 摘要：
- behavior in the wire-tailed manakin (Pipra filicauda), a gregarious songbird whose cooperative partnerships are crucial for fitness. We used automated
Data from: Divergent color signals from homologous unfeathered ornaments in two congeneric grouse
- 负责人：
- DOI：
- doi:10.5061/dryad.ms33h5h
- 摘要：
- and intrasexual competitive interactions are easily observed in lekking grouse, which also signal with prominent unfeathered color patches. Most male grouse hav
Data from: Simultaneous age-dependent and age-independent sexual selection in the lekking black grouse (Lyrurus tetrix)
- 负责人：
- DOI：
- doi:10.5061/dryad.2jj6q
- 摘要：
- ween the expression of male traits and mating success can also vary with male age. Hence, using longitudinal data in a lekking species with strong sexual selection
Data from: Hidden Markov models reveal tactical adjustment of temporally-clustered courtship displays in response to the behaviors of a robotic female
- 负责人：
- Perry, Anna Caroline
- 关键词：
- Lekking Behavior Communication Ecology: behavioral Mate choice Methods: time series analysis Selection: sexual Bird
- DOI：
- doi:10.5061/dryad.sn0c503
- 摘要：
- We present a statistical approach—a custom-built hidden Markov model (HMM)—that is broadly applicable to the analysis of temporally-clustered display events, as found in many animals, including birds, orthopterans, and anurans. This HMM can simultaneously estimate both the expected lengths of each animal’s display bouts and also their within-bout display rates. We highlight the HMM’s ability to estimate changes in animals’ display effort over time and across different social contexts, using data from male greater sage-grouse (Centrocercus urophasianus). Male display effort was modeled across three sites in two experimental treatments (robotic female simulating interested or uninterested behavior) and in the presence or absence of live females. Across contexts, we show that sage-grouse males primarily adjust their bout lengths, rather than their within-bout display rates. Males’ responses to female behavior were correlated with male mating success: males with more matings showed high display persistence regardless of female behavior, while males with fewer matings tended to invest selectively in females that were already showing interest in mating. Additionally, males with higher mating success responded more to female presence versus absence. We conclude with suggestions for adapting our HMM approach for use in other animal systems.
Data from: Open-ended song learning in a hummingbird
- 负责人：
- DOI：
- doi:10.5061/dryad.vd61h
- 摘要：
- replacement is distinct from an initial early learning sensitive period. As half of lekking males do not survive past the first year of life in this species
Data from: Broad-scale variation in sexual dichromatism in songbirds is not explained by sex differences in exposure to predators during incubation
- 负责人：
- DOI：
- doi:10.5061/dryad.3gv78
- 摘要：
- ted to the differences in parental share during incubation, but it was most pronounced in lekking species, migrants, and small species. Our results thus suggest tha
Data from: The social factors driving settlement and relocation decisions in a solitary and aggregative spider
- 负责人：
- DOI：
- doi:10.5061/dryad.3723v
- 摘要：
- settlement in lekking species, the hotshot and preferences models, to examine the relative importance of a female’s phenotype and mate attraction to further
Data from: Booming far: the long-range vocal strategy of a lekking bird
- 负责人：
- Cornec, Clément
- 关键词：
- animal communication bioacoustics low-frequency vocalisation houbara bustard propagation playback experiment
- DOI：
- doi:10.5061/dryad.rd24d
- 摘要：
- . Thus, the coding-decoding process relies on redundant and propagation-resistant features, making the booms particularly well adapted for the long-range transmission
