Journal of Ornithology, Journal Year: 2022, Volume and Issue: 163(2), P. 611 - 614
Published: Jan. 30, 2022
Language: Английский
Journal of Ornithology, Journal Year: 2022, Volume and Issue: 163(3), P. 735 - 748
Published: March 15, 2022
Language: Английский
Citations
7
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: May 14, 2024
Summary How phenotypic diversity originates and persists within populations are classic puzzles in evolutionary biology. While polymorphisms hypothesized to be under balancing selection segregate many species, it remains rare for the genetic basis selective forces both known same trait, leading an incomplete understanding of classes polymorphisms. Here, we uncover architecture a balanced sexual mimicry polymorphism identify behavioral mechanisms that may involved its maintenance swordtail fish Xiphophorus birchmanni . We find ∼40% X. males develop “false gravid spot”, melanic pigmentation pattern mimics “pregnancy spot” associated with maturity female live-bearing fish. Using genome-wide association mapping, detect single intergenic region variation false spot, which is upstream kitlga , gene melanophore patterning. By performing long-read sequencing across populations, complex structural rearrangements between alternate alleles at this locus. The spot haplotype drives increased allele-specific expression provides mechanistic explanation abundance causes spot. studying social interactions laboratory nature, experience less aggression; however, they also receive attention from other disdained by females. These play role maintaining natural populations. speculate variants affecting regulation underappreciated driver diverse species.
Language: Английский
Citations
1
Frontiers in Neuroendocrinology, Journal Year: 2023, Volume and Issue: 70, P. 101077 - 101077
Published: May 20, 2023
Language: Английский
Citations
3
Ethology, Journal Year: 2023, Volume and Issue: 130(1)
Published: Oct. 13, 2023
Abstract Competition over resources often leads to intra‐ and interspecific interactions, which can be detrimental the individuals involved. Thus, natural selection should favor communication systems that reliably convey information regarding relative competitive abilities of an individual, reducing need for physically damaging confrontation. Body size, sex, age, relatedness, ornamentation are important factors determining dominance across diverse taxa in intraspecific interactions. These traits, when perceptible, may serve as signals species guilds have frequent Hummingbirds provide a tractable system study such community dynamics due their high frequency variable ornamentation, body sizes, fast metabolism, large overlap resource utilization. Even this system, potential interactions between morphology coloration rarely accounted together analyzing species. We take novel approach understanding by assessing behavior, morphology, different types behavioral Across 11 tropical montane hummingbird species, we find is predicted wing size some metrics plumage coloration. However, biological significance these varies behaviors performed. results inform our signaling its role evolution intraguild competition.
Language: Английский
Citations
3
Ecology and Evolution, Journal Year: 2021, Volume and Issue: 11(23), P. 17132 - 17141
Published: Nov. 16, 2021
Abstract Radio‐frequency identification (RFID) technology has gained popularity in ornithological studies as a way to collect large quantities of data answer specific biological questions, but few published report methodologies used for validating the accuracy RFID data. Further, connections between and behaviors interest study are not always clearly established. These methodological deficiencies may seriously impact study's results subsequent interpretation. We built RFID‐equipped bird feeders mounted them at three sites Tompkins County, New York. deployed passive integrated transponder tags on black‐capped chickadees, tufted titmice, white‐breasted nuthatches GoPro video camera record tagged species feeders. then reviewed determine reader understand birds’ behavior found that our system recorded only 34.2% all visits by birds ( n = 237) detection increased with length visit. also two other visited feeders, American goldfinch hairy woodpecker, retrieved food 79.5% their visits. Chickadees, nuthatches, woodpeckers spent, average, 2.3 s one seed per In contrast, goldfinches spent an average 9.0 consumed up 30 seeds Our demonstrate importance confirming can be identify behavioral characteristics associated reader's detections. This simple — yet time‐intensive method assessing meaning is useful research focusing various taxa systems.
Language: Английский
Citations
6
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown
Published: March 29, 2023
Abstract Sex-limited morphs can provide profound insights into the evolution and genomic architecture of complex phenotypes. Inter-sexual mimicry is one particular type sex-limited polymorphism in which a novel morph resembles opposite sex. While inter-sexual mimics are known both sexes diverse range animals, their evolutionary origin poorly understood. Here, we investigated basis female-limited male Common Bluetail damselfly. Differential gene expression between has been documented damselflies, but no causal locus previously identified. We found that male-mimicry originated an ancestrally sexually-dimorphic lineage association with multiple structural changes, probably driven by transposable element activity. These changes resulted ∼900 kb content partly shared close relative, indicating trans-species polymorphism. More recently, third following translocation part sequence position ∼3.5 mb apart. evidence balancing selection maintaining male-mimicry, line previous field population studies. Our results underscore how variants affecting handful potentially regulatory genes morph-specific genes, give rise to phenotypic polymorphisms.
Language: Английский
Citations
2
Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1987)
Published: Nov. 16, 2022
The evolution of costly signalling traits has largely focused on male ornaments. However, our understanding ornament is necessarily incomplete without investigating the causes and consequences variation in female ornamentation. Here, we study Anolis lizard dewlap, a trait extensively studied as secondary sexual characteristic but present females several species. We characterized dewlaps for 339 species to test hypotheses about their evolution. Our results did not support hypothesis that are selected against throughout anole phylogeny. Rather, found were evolutionary labile. also find adaptive interspecific competition drove dewlaps. pleiotropy with larger reduced size dimorphism more likely possess Lastly, dewlap presence influenced diversification rates anoles, only secondarily hidden state. demonstrate ornamentation widespread anoles traditional divergent selection between sexes does fully explain Instead, be subject complex non-adaptive forces.
Language: Английский
Citations
4
Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1989)
Published: Dec. 14, 2022
Traits that exhibit differences between the sexes have been of special interest in study phenotypic evolution. Classic hypotheses explain sexually dimorphic traits via intra-sexual competition and mate selection, yet natural selection may also act differentially on to produce dimorphism. Natural can either through physiological ecological constraints one sexes, or by modulating strength sexual/social selection. This predicts an association degree dimorphism variation environments. Here, we characterize hummingbird across gradients using rich databases morphology, colouration song. We show morphological decreases with elevation understorey increases mixed habitats, dichromatism at high altitudes open song is less complex habitats. Our results are consistent flight constraints, lower predation pressure elevations habitat effects transmission. complexity positively associated, while tail negatively associated. suggest key factors shape traits, different communication modalities do not always evolve tandem.
Language: Английский
Citations
4
Biological Journal of the Linnean Society, Journal Year: 2023, Volume and Issue: 138(4), P. 372 - 391
Published: March 9, 2023
Abstract Studies of the effects insularity on animal signals are scarce, particularly in lizards. Here, we use Lilford’s wall lizard from Dragonera (Podarcis lilfordi gigliolii) to ask how island conditions have affected its repertoire social signals, focusing two visual shared by many Podarcis species: ultraviolet (UV)–blue-reflecting ventrolateral colour patches and displays. We examined whether number or spectral characteristics UV–blue associated with traits related individual quality. also used models assess conspicuousness measure sexual dichromatism. did not observe foot shakes any other displays usually found continental Podarcis. that none patch variables covaried morphometric indicative fighting ability body condition males, suggesting this coloration does signal very little In particular, females seem over-expressed more similar those males than Ancestral state reconstruction reveals lack dimorphism is a derived for P. gigliolii living small islands. Our results thus show pattern reduced signalling relative mainland Podarcis, some being lost under-expressed (visual displays) others losing their function (UV–blue patches). hypothesize these changes attributable high population density gigliolii, which discourages territorial behaviour promotes extreme tolerance, making most unnecessary. More work will be needed determine common lizards inhabiting densely populated
Language: Английский
Citations
2
Journal of Insect Behavior, Journal Year: 2022, Volume and Issue: 35(5-6), P. 171 - 182
Published: Nov. 1, 2022
Language: Английский
Citations
3