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1. Eco-Evolutionary Dynamics of Sexual Dimorphism

Author:
Fryxell, David C.; Weiler, Doriane E.; Kinnison, Michael T.; Palkovacs, Eric P.
Source:
Trends in ecology & evolution 2019 v.34 no.7 pp. 591-594
ISSN:
0169-5347
Subject:
sexual selection,   etc   ; ecosystems; environmental impact; sexual dimorphism;     Show all 4 Subjects
Abstract:
... Sexual dimorphism is widespread, but we have a limited understanding of its significance for communities and ecosystems. Several new experiments demonstrate that sexual dimorphism can have far-reaching ecological effects. These results suggest that sexual dimorphism and sexual selection are potent, but largely overlooked components of eco-evolutionary dynamics. ...
DOI:
10.1016/j.tree.2019.04.007

2. The relationship between latitude, migration and the evolution of bird song complexity

Author:
Najar, Nadje; Benedict, Lauryn
Source:
TheIbis 2019 v.161 no.1 pp. 1-12
ISSN:
0019-1019
Subject:
sexual selection,   etc   ; birds; latitude; migratory behavior;     Show all 4 Subjects
Abstract:
... For the past several decades it has been proposed that birds show latitudinal variation in song complexity. How universal this variation may be and what factors generate it, however, are still largely unknown. Furthermore, while migration is confounded with latitude, migratory behaviour alone may also be associated with variation in song complexity. In this paper we review the literature to assess ...
DOI:
10.1111/ibi.12648

3. An Alternative to Adaptation by Sexual Selection: Habitat Choice

Author:
Porter, Cody K.; Akcali, Christopher K.
Source:
Trends in ecology & evolution 2018 v.33 no.8 pp. 576-581
ISSN:
0169-5347
Subject:
sexual selection,   etc   ; habitats; reproductive performance;     Show all 3 Subjects
Abstract:
... Adaptation in mating signals and preferences has generally been explained by sexual selection. We propose that adaptation in such mating traits might also arise via a non-mutually exclusive process wherein individuals preferentially disperse to habitats where they experience high mating performance. Here we explore the evolutionary implications of this process. ...
DOI:
10.1016/j.tree.2018.05.004

4. Female resistance to sexual coercion can evolve to preserve the indirect benefits of mate choice

Author:
Snow, Samuel S.; Alonzo, Suzanne H.; Servedio, Maria R.; Prum, Richard O.
Source:
Journal of evolutionary biology 2019 v.32 no.6 pp. 545-558
ISSN:
1010-061X
Subject:
sexual selection,   etc   ; coevolution; females; males; mating behavior; progeny; traditions;     Show all 7 Subjects
Abstract:
... Sexual conflict over the indirect benefits of mate choice may arise when traits in one sex limit the ability of the other sex to freely choose mates but when these coercive traits are not necessarily directly harmful (i.e. forced fertilization per se). Although we might hypothesize that females can evolve resistance in order to retain the indirect, genetic benefits (reflected in offspring attracti ...
DOI:
10.1111/jeb.13436

5. Male bull-headed shrikes use food caches to improve their condition-dependent song performance and pairing success

Author:
Nishida, Yuusuke; Takagi, Masaoki
Source:
Animal behaviour 2019 v.152 pp. 29-37
ISSN:
0003-3472
Subject:
sexual selection,   etc   ; Lanius; animal behavior; animals; females; males; nutrition;     Show all 7 Subjects
Abstract:
... Food caching is common in many animal species and is thought to have evolved largely by natural selection. We propose that sexual selection also plays an important role in the evolution of food caching. The sexual trait promotion (STP) hypothesis predicts that if male food caches provide supplemental nutrition allowing males to improve their sexual traits (e.g. song) serving a role in female choic ...
DOI:
10.1016/j.anbehav.2019.04.002

6. Qualitative and quantitative comparisons of mating behaviour across multiple populations and six species of leiobunine harvestmen (Arachnida: Opiliones)

Author:
Fowler-Finn, Kasey; Boyer, Sarah L.; Ikagawa, Raine; Jeffries, Timothy; Kahn, Penelope C.; Larsen, Eva Marie; Lee, Daniel; Sasson, Daniel; Smeester, Morgan
ISSN:
0005-7959
Subject:
sexual selection,   etc   ; Opiliones; animals; body size; mating behavior;     Show all 5 Subjects
Abstract:
... Mating behaviour is highly diverse in animals both among and within species. We examine variation in mating behaviour in leiobunine harvestmen, which show high diversity in genitalic traits that are predicted to correspond to patterns of behavioural diversity. We ran mating trials for six species of leiobunine from four locations, and measured body size for a subset of individuals. We described ma ...
DOI:
10.1163/1568539X-00003545

7. Darwin, Sexual Selection, and the Origins of Music

Author:
Ravignani, Andrea
Source:
Trends in ecology & evolution 2018 v.33 no.10 pp. 716-719
ISSN:
0169-5347
Subject:
sexual selection,   etc   ; empirical research; humans; music;     Show all 4 Subjects
Abstract:
... Humans devote ample time to produce and perceive music. How and why this behavioral propensity originated in our species is unknown. For centuries, speculation dominated the study of the evolutionary origins of musicality. Following Darwin’s early intuitions, recent empirical research is opening a new chapter to tackle this mystery. ...
DOI:
10.1016/j.tree.2018.07.006

8. “Ficedula”: an open-source MATLAB toolbox for cutting, segmenting and computer-aided clustering of bird song

Author:
Zsebők, Sándor; Blázi, György; Laczi, Miklós; Nagy, Gergely; Vaskuti, Éva; Garamszegi, László Zsolt
Source:
Journal of ornithology 2018 v.159 no.4 pp. 1105-1111
ISSN:
2193-7192
Subject:
sexual selection,   etc   ; Ficedula albicollis; animal communication; learning;     Show all 4 Subjects
Abstract:
... Qualitative and quantitative assessments of bird song repertoires are important in studies related to song learning, sexual selection and cultural evolution. Despite methods for automatic analysis, it is still necessary to engage in manual cutting, segmenting and clustering of bird song elements in many cases. Here, we describe a program, the Ficedula Toolbox, which has been made available for fre ...
DOI:
10.1007/s10336-018-1581-9

9. Dangerous love? Predation risk does not affect female mate choice in blue‐black grassquits

Author:
de Moraes, Pedro Z.; Diniz, Pedro; Macedo, Regina H.
Source:
Ethology 2019 v.125 no.7 pp. 421-429
ISSN:
0179-1613
Subject:
sexual selection,   etc   ; adults; breeding season; courtship; females; males; nests; predation; progeny; risk; vocalization;     Show all 11 Subjects
Abstract:
... Predation risk may be an important factor affecting female mate choice. Hypothetically, females could choose extravagantly ornamented males that survive in high predation risk environments. However, this decision could be different if choosing a conspicuous male under high predation risk is costly for females or results in reduced offspring survival. In such contexts, females could become indiffer ...
DOI:
10.1111/eth.12866

10. Is the predation risk of mate-searching different between the sexes?

Author:
Torsekar, Viraj R.; Isvaran, Kavita; Balakrishnan, Rohini
Source:
Evolutionary ecology 2019 v.33 no.3 pp. 329-343
ISSN:
0269-7653
Subject:
sexual selection,   etc   ; Oecanthus; Oxyopes salticus; animals; bioacoustics; females; insects; males; mortality; predation; prediction; risk;     Show all 12 Subjects
Abstract:
... In animals that communicate for pair formation, generally one sex invests more effort in mate searching. Differential predation risk of mate searching between the sexes is hypothesised to determine which sex invests more effort in mate searching. Although searching by males is prevalent in most animals, in orthopteran insects and some other taxa females physically move to localise signalling males ...
DOI:
10.1007/s10682-019-09982-3

11. Me against who? Male guppies adjust mating behaviour according to their rival’s presence and attractiveness

Author:
Órfão, Inês; Barbosa, Miguel; Ojanguren, Alfredo F.; Vicente, Luís; Varela, Susana A. M.; Magurran, Anne E.
Source:
Ethology 2019 v.125 no.6 pp. 399-408
ISSN:
0179-1613
Subject:
sexual selection,   etc   ; Poecilia; animal behavior; color; courtship; females; males; phenotype; risk;     Show all 9 Subjects
Abstract:
... Sexual selection theory suggests that males need to constantly reappraise their mating decisions to take account of the presence and the phenotypes of their rivals. Here we examine this expectation by asking: (i) If the presence of a rival influences male mating behaviour; (ii) How important is the attractiveness of the rival (absolute attractiveness) in shaping male behaviour; and (iii) How does ...
DOI:
10.1111/eth.12864

12. Operational sex ratio and density predict the potential for sexual selection in the broad-horned beetle

Author:
House, Clarissa M.; Rapkin, James; Hunt, John; Hosken, David J.
Source:
Animal behaviour 2019 v.152 pp. 63-69
ISSN:
0003-3472
Subject:
sexual selection,   etc   ; Gnatocerus cornutus; animal behavior; males; mating behavior; phenotype; sex ratio; stochastic processes;     Show all 8 Subjects
Abstract:
... Sexual selection can act on all aspects of the phenotype and the opportunity for selection (Is) sets its maximal strength. Popular approaches to alter Is include the manipulation of the operational sex ratio (OSR) and/or density, with an increase in Is predicted with a male-biased OSR and at higher density. However, debate continues regarding the utility of Is to measure meaningful changes in the ...
DOI:
10.1016/j.anbehav.2019.03.019

13. Courtship behavior and coloration influence conspicuousness of wolf spiders (Schizocosa ocreata (Hentz)) to avian predators

Author:
Rubi, Tricia L.; Clark, David L.; Keller, Jonathan S.; Uetz, George W.
Source:
Behavioural processes 2019 v.162 pp. 215-220
ISSN:
0376-6357
Subject:
sexual selection,   etc   ; Cyanocitta cristata; Lycosidae; birds; color; courtship; freezing; males; predation; predators; walking;     Show all 11 Subjects
Abstract:
... Signalers must balance the benefits of detection by intended receivers with the costs of detection by eavesdroppers. This trade-off is exemplified by sexual signaling systems, in which signalers experience sexual selection for conspicuousness to mates as well as natural selection for crypsis to predators. In this study, we examined how courtship behavior and body coloration influenced the conspicu ...
DOI:
10.1016/j.beproc.2018.12.023

14. Nutrition during sexual maturation and at the time of mating affects mating behaviour in both sexes of a burying beetle

Author:
Richardson, Jon; Smiseth, Per T.
Source:
Animal behaviour 2019 v.151 pp. 77-85
ISSN:
0003-3472
Subject:
sexual selection,   etc   ; Nicrophorus vespilloides; animal behavior; females; males; mating behavior; nutrition; sexual maturity;     Show all 8 Subjects
Abstract:
... Theory predicts that the outcome of mating interactions should be influenced by the condition of both males and females. First, females should base their mating decisions on reliable cues about male quality, which are often condition dependent. Second, the costs and/or benefits of being choosy during mating may depend on the female's own condition. Finally, when males divide their time between dif ...
DOI:
10.1016/j.anbehav.2019.03.013

15. Opportunity for female choice in the wild is frequently curtailed by low male trait variation in Hyla versicolor

Author:
Stratman, Kane D.; Höbel, Gerlinde
Source:
Behavioral ecology and sociobiology 2019 v.73 no.5 pp. 59
ISSN:
0340-5443
Subject:
sexual selection,   etc   ; Hyla versicolor; acoustics; animals; females; males; mating behavior; phonotaxis; prediction; reproductive success;     Show all 10 Subjects
Abstract:
... To understand the efficacy of female choice in driving the evolution of male displays, we need to not only characterize preferences but examine the opportunity for the expression of such preferences. Mate assessment by females should be constrained if the relative attractiveness of multiple displays is perceived as equal because trait differences between them are indistinguishable. This is expecte ...
DOI:
10.1007/s00265-019-2666-z

16. Selection for conspicuous visual signals in a fiddler crab

Author:
Perez, Daniela Malgarini; Backwell, P. R. Y.
Source:
Behavioral ecology and sociobiology 2019 v.73 no.5 pp. 61
ISSN:
0340-5443
Subject:
sexual selection,   etc   ; Uca; animals; claws; courtship; females; habitats; males; robots; sexual dimorphism; sympatry;     Show all 11 Subjects
Abstract:
... Sexual selection has an undeniable influence in the evolution of the spectacular diversity of courtship signals in the animal kingdom. A long history of study has pointed to mechanisms through which sexual selection can act: it can favor signals that are reliable indicators of species identity or effectively transfer mate quality information. In some species, these mechanisms have the potential to ...
DOI:
10.1007/s00265-019-2670-3

17. Weaponry, size, and sex ratio affect spatial distribution within small and large groups of the maritime earwig (Anisolabis maritima)

Author:
Dodgen, Rose E.; Iyengar, Vikram K.
Source:
Ethology 2019 v.125 no.5 pp. 306-315
ISSN:
0179-1613
Subject:
sexual selection,   etc   ; Anisolabis maritima; aggression; females; insects; males; sex ratio; sexual dimorphism; social behavior; territoriality;     Show all 10 Subjects
Abstract:
... Dispersion patterns within a group can reveal important aspects about social interactions and sexual selection within a species. We examined the distribution patterns of the maritime earwig (Anisolabis maritima), an insect well suited for studies of aggression, sociality, and sexual selection since both sexes live in close proximity and possess weaponry in the form of sexually dimorphic pincers. T ...
DOI:
10.1111/eth.12855

18. Hairstreak butterflies (Lepidoptera, Lycaenidae) and evolution of their male secondary sexual organs

Author:
Pereira Martins, Ananda Regina; Duarte, Marcelo; Robbins, Robert K.
Source:
Cladistics 2019 v.35 no.2 pp. 173-197
ISSN:
0748-3007
Subject:
sexual selection,   etc   ; Lycaenidae; allopatry; females; gonads; males; phylogeny; prediction; reproductive isolation; sisters; sympatry;     Show all 11 Subjects
Abstract:
... Hairstreak butterflies in the Atlides Section of the Eumaeini are biologically notable for a diverse array of male secondary sexual organs. A “species recognition” hypothesis postulates that females use these organs to choose between conspecific and non‐conspecific males, thereby promoting reproductive isolation. Alternately, a “sexual selection” hypothesis posits that females use these organs to ...
DOI:
10.1111/cla.12355

19. Losing the trait without losing the signal: Evolutionary shifts in communicative colour signalling

Author:
Romero‐Diaz, Cristina; Rivera, Julio A.; Ossip‐Drahos, Alison G.; Zúñiga‐Vega, José Jaime; Vital‐García, Cuauhcihuatl; Hews, Diana K.; Martins, Emília P.
Source:
Journal of evolutionary biology 2019 v.32 no.4 pp. 320-330
ISSN:
1010-061X
Subject:
sexual selection,   etc   ; color; males; phylogeny; predators; receptors; reflectance; retina; sexual dimorphism; wavelengths;     Show all 10 Subjects
Abstract:
... Colour signalling traits are often lost over evolutionary time, perhaps because they increase vulnerability to visual predators or lose relevance in terms of sexual selection. Here, we used spectrometric and phylogenetic comparative analyses to ask whether four independent losses of a sexually selected blue patch are spectrally similar, and whether these losses equate to a decrease in conspicuousn ...
DOI:
10.1111/jeb.13416

20. Rapid evolution of testis size relative to sperm morphology suggests that post‐copulatory selection targets sperm number in Anolis lizards

Author:
Kahrl, Ariel F.; Johnson, Michele A.; Cox, Robert M.
Source:
Journal of evolutionary biology 2019 v.32 no.4 pp. 302-309
ISSN:
1010-061X
Subject:
sexual selection,   etc   ; Anolis; body size; flagellum; lizards; sperm competition; spermatogenesis; spermatozoa; testes;     Show all 9 Subjects
Abstract:
... Post‐copulatory sexual selection is thought to be responsible for much of the extraordinary diversity in sperm morphology across metazoans. However, the extent to which post‐copulatory selection targets sperm morphology versus sperm production is generally unknown. To address this issue, we simultaneously characterized the evolution of sperm morphology (length of the sperm head, midpiece and flage ...
DOI:
10.1111/jeb.13414