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Xiaodong Li, Hiroshi Ishimoto, Azusa Kamikouchi
In birds and higher mammals, auditory experience during development is critical to discriminate sound patterns in adulthood. However, the neural and molecular nature of this acquired ability remains elusive. In fruit flies, acoustic perception has been thought to be innate. Here we report, surprisingly, that auditory experience of a species-specific courtship song in developing Drosophila shapes adult song perception and resultant sexual behavior. Preferences in the song-response behaviors of both males and females were tuned by social acoustic exposure during development...
March 20, 2018: ELife
Lei Xiao, Gaurav Chattree, Francisco Garcia Oscos, Mou Cao, Matthew J Wanat, Todd F Roberts
Learning vocal behaviors, like speech and birdsong, is thought to rely on continued performance evaluation. Whether candidate performance evaluation circuits in the brain are sufficient to guide vocal learning is not known. Here, we test the sufficiency of VTA projections to the vocal basal ganglia in singing zebra finches, a songbird species that learns to produce a complex and stereotyped multi-syllabic courtship song during development. We optogenetically manipulate VTA axon terminals in singing birds contingent on how the pitch of an individual song syllable is naturally performed...
March 14, 2018: Neuron
Daphné Capela, Sakina Mhaouty-Kodja
No abstract text is available yet for this article.
March 2018: Médecine Sciences: M/S
Nathan J Butterworth, Phillip G Byrne, Paul A Keller, James F Wallman
Cuticular hydrocarbons (CHCs) play an important role as contact pheromones in insects, particularly in flies. However, for many fly taxa our understanding of the importance of CHCs in sexual communication is limited. Within the family Calliphoridae (blowflies), sex-specific differences in CHCs have been reported for several species, but there is no evidence that CHCs facilitate sexual behavior. In order to elucidate the function of CHCs in Calliphoridae, studies combining behavioral and chemical analyses are required...
March 15, 2018: Journal of Chemical Ecology
Logan S James, Jennifer B Dai, Jon T Sakata
Many important behaviours are socially learned. For example, the acoustic structure of courtship songs in songbirds is learned by listening to and interacting with conspecifics during a sensitive period in development. Signallers modify the spectral and temporal structures of their vocalizations depending on the social context, but the degree to which this modulation requires imitative social learning remains unknown. We found that male zebra finches ( Taeniopygia guttata ) that were not exposed to context-dependent song modulations throughout development significantly modulated their song in ways that were typical of socially reared birds...
March 2018: Biology Letters
Adriana Schatton, Ezequiel Mendoza, Kathrin Grube, Constance Scharff
Mutations in the transcription factors FOXP1, FOXP2 and FOXP4 affect human cognition, including language. The FoxP gene locus is evolutionarily ancient and highly conserved in its DNA-binding domain. In Drosophila melanogaster FoxP has been implicated in courtship behavior, decision making and specific types of motor-learning. Because honeybees (Apis mellifera, Am) excel at navigation and symbolic dance communication, they are a particularly suitable insect species to investigate a potential link between neural FoxP expression and cognition...
March 14, 2018: Journal of Comparative Neurology
Austin C Korgan, Elizabeth O'Leary, Jillian L King, Ian C G Weaver, Tara S Perrot
Paternal preconception risk factors (e.g. stress, diet, drug use) correlate with metabolic dysfunction in offspring, which is often comorbid with depressive and anxiety-like phenotypes. Detection of these risk factors or deleterious phenotypes informs a female about prevailing ecological demands, in addition to potential adverse environment-induced phenotypes that may be disseminated to her offspring. We examined whether a F0 male rat's prior exposure to an obesogenic high-fat diet (HFD) influences a female's attraction towards a male, subsequent mother-infant interactions and the development of defensive (emotional) responses in the F1 offspring...
February 21, 2018: Psychoneuroendocrinology
Yiftach Golov, Jan Rillich, Ally Harari, Amir Ayali
Studies of mating and reproductive behavior have contributed much to our understanding of various animals' ecological success. The desert locust, Schistocerca gregaria , is an important agricultural pest. However, knowledge of locust courtship and precopulatory behavior is surprisingly limited. Here we provide a comprehensive study of the precopulatory behavior of both sexes of the desert locust in the gregarious phase, with particular emphasis on the conflict between the sexes. Detailed HD-video monitoring of courtship and mating of 20 locust pairs, in a controlled environment, enabled both qualitative and quantitative descriptions of the behavior...
2018: PeerJ
Kevin T Justus, Tamra C Mendelson
The higher energetic cost related to female gamete investment is classically considered the driving force behind sexual selection. This asymmetric cost of reproduction is thought to cause female preference for elaborate male ornamentation. Subsequent co-evolution of female preferences and male ornaments is thought then to lead to a greater preference for conspecific mates in females as compared to males. Thus, female choice is classically assumed to contribute more than male choice to behavioral isolation between sexually dimorphic species...
March 1, 2018: Behavioural Processes
Anita Murray, Rebecca A Dunlop, Michael J Noad, Anne W Goldizen
Male humpback whales produce a mating display called "song." Behavioral studies indicate song has inter- and/or intra-sexual functionality, suggesting song may be a multi-message display. Multi-message displays often include stereotypic components that convey group membership for mate attraction and/or male-male interactions, and complex components that convey individual quality for courtship. Humpback whale song contains sounds ("units") arranged into sequences ("phrases"). Repetitions of a specific phrase create a "theme...
February 2018: Journal of the Acoustical Society of America
L Mark Elbroch, Howard Quigley
In total, 177 of 245 terrestrial carnivores are described as solitary, and much of carnivore ecology is built on the assumptions that interactions between adult solitary carnivores are rare. We employed Global Positioning System (GPS) technology and motion-triggered cameras to test predictions of land-tenure territoriality and the resource dispersion hypothesis in a territorial carnivore, the puma Puma concolor . We documented 89 independent GPS interactions, 60% of which occurred at puma kills ( n =  53), 59 camera interactions, 11 (17%) of which captured courtship behaviors, and 5 other interactions (1 F-F, 3 M-F, and 1 M-M)...
August 2017: Current Zoology
Elizabeth K Peterson, Roman Yukilevich, Joanne Kehlbeck, Kelly M LaRue, Kyle Ferraiolo, Kurt Hollocher, Helmut V B Hirsch, Bernard Possidente
Anthropogenic pollutants have the potential to disrupt reproductive strategies. Little is known about how lead (Pb2+ ) exposure disrupts individual-level responses in reproductive behaviors, which are important for fitness. Drosophila melanogaster was used as a model system to determine the effects of: 1) developmental lead exposure on pre-mating reproductive behaviors (i.e., mate preference), and 2) lead exposure and mating preferences on fitness in the F 0 parental generation and F 1 un-exposed offspring...
April 2017: Current Zoology
Mathieu Denoël
Paedomorphosis is an alternative process to metamorphosis in which adults retain larval traits at the adult stage. It is frequent in newts and salamanders, where larvae reach sexual maturity without losing their gills. However, in some populations, larvae overwinter in water, while remaining immature. These alternative ontogenetic processes are of particular interest in various research fields, but have different causes and consequences, as only paedomorphosis allows metamorphosis to be bypassed before maturity...
April 2017: Current Zoology
Lisbeth Van Ruijssevelt, Yining Chen, Kaya von Eugen, Julie Hamaide, Geert De Groof, Marleen Verhoye, Onur Güntürkün, Sarah C Woolley, Annemie Van der Linden
Selection of sexual partners is among the most critical decisions that individuals make and is therefore strongly shaped by evolution. In social species, where communication signals can convey substantial information about the identity, state, or quality of the signaler, accurate interpretation of communication signals for mate choice is crucial. Despite the importance of social information processing, to date, relatively little is known about the neurobiological mechanisms that contribute to sexual decision making and preferences...
February 21, 2018: Current Biology: CB
Wei-Sheng Lin, Sheng-Rong Yeh, Shou-Zen Fan, Liang-Yu Chen, Jui-Hung Yen, Tsai-Feng Fu, Ming-Shiang Wu, Pei-Yu Wang
Appropriate sexual selection or individual sexual attractiveness is closely associated with the reproductive success of a species. Here, we report that young male flies exhibit innate courtship preference for female flies that are raised on higher-yeast diets and that have greater body weight and fecundity, but reduced locomotor activity and shortened lifespan. Male flies discriminate among females that have been fed diets that contain 3 different yeast concentrations-1, 5, and 20% yeast- via gustatory, but not visual or olfactory, perception...
February 16, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Geneviève Leduc-Robert, Wayne P Maddison
BACKGROUND: Habronattus is a diverse clade of jumping spiders with complex courtship displays and repeated evolution of Y chromosomes. A well-resolved species phylogeny would provide an important framework to study these traits, but has not yet been achieved, in part because the few genes available in past studies gave conflicting signals. Such discordant gene trees could be the result of incomplete lineage sorting (ILS) in recently diverged parts of the phylogeny, but there are indications that introgression could be a source of conflict...
February 22, 2018: BMC Evolutionary Biology
Meredith C Miles, Eric R Schuppe, R Miller Ligon, Matthew J Fuxjager
Sexual selection drives elaboration in animal displays used for competition and courtship, but this process is opposed by morphological constraints on signal design. How do interactions between selection and constraint shape display evolution? One possibility is that sexual selection continues exaggeration under constraint by operating differentially on each signal component in complex, modular displays. This is seldom studied on a phylogenetic scale, but we address the issue herein by studying macroevolutionary patterning of woodpecker drum displays...
February 28, 2018: Proceedings. Biological Sciences
Alba Sánchez-García, Enrique Peñalver, Xavier Delclòs, Michael S Engel
Among the many challenges in paleobiology is the inference and reconstruction of behaviors that rarely, if ever, leave a physical trace on the environment that is suitable for fossilization. Of particular significance are those behaviors tied to mating and courtship, individual interactions critical for species integrity and continuance, as well as those for dispersal, permitting the taxon to expand its distribution as well as access new habitats in the face of local or long-term environmental change. In this context, two recently discovered fossils from the Early Cretaceous amber of Spain (ca...
2018: PloS One
Erick González-Medina, José Alfredo Castillo-Guerrero, Sharon Zinah Herzka, Guillermo Fernández
Understanding the role of diet in the physiological condition of adults during reproduction and hence its effect on reproductive performance is fundamental to understand reproductive strategies in long-lived animals. In birds, little is known about the influence of the quality of food consumed at the beginning of the reproductive period and its short-term effects on reproductive performance. To assess the role of diet in the physiological condition of female blue-footed booby, Sula nebouxii (BFBO), during reproduction we evaluated whether individual differences in diet (assessed by using δ13C and δ15N values of whole blood from female birds and muscle tissue of the principal prey species) prior to egg laying and during incubation influenced their lipid metabolic profile (measured as triglyceride levels and C:N ratio) and their reproductive performance (defined by laying date, clutch size and hatching success)...
2018: PloS One
Malcolm F Rosenthal, Matthew R Wilkins, Daizaburo Shizuka, Eileen A Hebets
Animal communication is often structurally complex and dynamic, with signaler and receiver behavior varying in response to multiple environmental factors. To date, studies assessing signal dynamics have mostly focused on the relationships between select signaling traits and receiver responses in a single environment. We use the wolf spider Schizocosa floridana to explore the relationships between courtship display form and function across two social contexts (female presence vs. absence) and two light environments (light vs...
February 20, 2018: Evolution; International Journal of Organic Evolution
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