scholarly journals The Possible Role of the Uropygial Gland on Mate Choice in Domestic Chicken

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Atsushi Hirao
Keyword(s):  
Mate Choice ◽  
Visual Cues ◽  
Individual Recognition ◽  
Copulatory Behavior ◽  
Uropygial Gland ◽  
Odor Cues ◽  
Histocompatibility Complex ◽  
Efferent Projections ◽  
Opposite Sex

In avian mating systems, male domestic fowls are polygamous and mate with a number of selected members of the opposite sex. The factors that influence mating preference are considered to be visual cues. However, several studies have indicated that chemosensory cues also affect socio-sexual behavior, including mate choice and individual recognition. The female uropygial gland appears to provide odor for mate choice, as uropygial gland secretions are specific to individual body odor. Chicken olfactory bulbs possess efferent projections to the nucleus taeniae that are involved in copulatory behavior. From various reports, it appears that the uropygial gland has the potential to act as the source of social odor cues that dictate mate choice. In this review, evidence for the possible role of the uropygial gland on mate choice in domestic chickens is presented. However, it remains unclear whether a relationship exists between the uropygial gland and major histocompatibility complex-dependent mate choice.

scholarly journals The Influence of Mate Choice Motivation on Non-financial Altruism

2017 ◽  
Author(s):  
Manpal Singh Bhogal ◽  
James Edward Bartlett ◽  
Daniel Farrelly
Keyword(s):  
Mate Choice ◽  
Attractive Potential ◽  
Altruistic Behavior ◽  
Men And Women ◽  
Economic Games ◽  
Cohen’S D ◽  
Opposite Sex ◽  
Mating Signal ◽  
Cohen's D

Several studies have found that individuals are more altruistic towards potential mates than others, suggesting altruistic behavior may be a mating signal. Much of the literature focuses on financial altruism using economic games, however altruism can also comprise of non-financial acts, which this experiment examined in an attempt to replicate and refine these previous findings. A study was conducted with 199 participants, who viewed both high attractive and low attractive opposite-sex images, and were asked how likely they would be to altruistically share their research credits with the person in the image, whilst controlling for self-rated attractiveness. The findings suggest that both men and women were more altruistic towards pictures of high attractive than low attractive potential mating partners (Cohen’s d = 0.37). This study therefore partially replicates previous research exploring the role of mate choice effects when exploring non-financial altruism.

scholarly journals Reproductive Strategy Inferred from Major Histocompatibility Complex-Based Inter-Individual, Sperm-Egg, and Mother-Fetus Recognitions in Giant Pandas (Ailuropoda melanoleuca)

Cells ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 257 ◽  
Author(s):  
Ying Zhu ◽  
Qiu-Hong Wan ◽  
He-Min Zhang ◽  
Sheng-Guo Fang
Keyword(s):  
Major Histocompatibility Complex ◽  
Mate Choice ◽  
Mhc Class Ii ◽  
Individual Recognition ◽  
Female Mate Choice ◽  
Ailuropoda Melanoleuca ◽  
Major Histocompatibility ◽  
Mhc Genes ◽  
Histocompatibility Complex ◽  
Recognition Level

Few major histocompatibility complex (MHC)-based mate choice studies include all MHC genes at the inter-individual, sperm-egg, and mother-fetus recognition levels. We tested three hypotheses of female mate choice in a 17-year study of the giant panda (Ailuropoda melanoleuca) while using ten functional MHC loci (four MHC class I loci: Aime-C, Aime-F, Aime-I, and Aime-L; six MHC class II loci: Aime-DRA, Aime-DRB3, Aime-DQA1, Aime-DQA2, Aime-DQB1, and Aime-DQB2); five super haplotypes (SuHa, SuHaI, SuHaII, DQ, and DR); and, seven microsatellites. We found female choice for heterozygosity at Aime-C, Aime-I, and DQ and for disassortative mate choice at Aime-C, DQ, and DR at the inter-individual recognition level. High mating success occurred in MHC-dissimilar mating pairs. No significant results were found based on any microsatellite parameters, suggesting that MHCs were the mate choice target and there were no signs of inbreeding avoidance. Our results indicate Aime-DQA1- and Aime-DQA2-associated disassortative selection at the sperm-egg recognition level and a possible Aime-C- and Aime-I-associated assortative maternal immune tolerance mechanism. The MHC genes were of differential importance at the different recognition levels, so all of the functional MHC genes should be included when studying MHC-dependent reproductive mechanisms.

The role of Accurate Self-Assessments in Optimising Mate Choice

2021 ◽  
Author(s):  
Kaitlyn Harper ◽  
Fiona Stanley ◽  
Morgan Sidari ◽  
Anthony J Lee ◽  
Brendan P. Zietsch
Keyword(s):  
Mate Choice ◽  
Social Exchange ◽  
Quality Standards ◽  
Romantic Partner ◽  
Match Quality ◽  
Potential Partner ◽  
Opposite Sex ◽  
Self Assessments

Individuals are thought to seek the best possible romantic partner in exchange for their own desirability. We investigated the strategies that individuals use when choosing a partner, and whether these strategies optimise the quality of mutually interested partners (‘matches’). Further, we investigated whether these matching outcomes were affected by the accuracy of one’s self-perceived mate value. Participants (1501 total) took part in a speed dating experiment whereby they rated themselves and others on attractiveness variables and indicated their willingness to date each opposite sex partner they interacted with. We then calculated participants’ selectivity, minimum and maximum standards, accuracy, match quality, and match quantity. Individuals were somewhat accurate in their self-evaluations, and these self-evaluations guided individual’s minimum and maximum quality standards for a potential partner, leading to higher quality matches. These findings extend social exchange models by emphasising the adaptiveness of accurate self-evaluations in mating contexts.

Menguji Kepuasan Hubungan Melalui Intimasi dan Perasaan Cemburu pada Pelaku Hubungan Friends with Benefits

2020 ◽  
Vol 10 (2) ◽  
pp. 114
Author(s):  
Putu Yunita Trisna Dewi ◽  
M. Arief Sumantri
Keyword(s):  
Relationship Satisfaction ◽  
Romantic Relationship ◽  
Descriptive Analysis ◽  
Friends With Benefits ◽  
Opposite Sex ◽  
Social Intimacy ◽  
Relationship Assessment ◽  
The Relationship ◽  
Assessment Scales

Friends with Benefits (FWB) is a friendship of the opposite sex that involves sexual activity without commitment, feelings of love and encouragement to continue the relationship toward a romantic relationship. This study aims to determine the role of intimacy and jealousy towards the relationship satisfaction of individuals undergoing the FWB and the role of jealousy towards intimacy, and describing the emotions and views of participants on their FWB relationships. The subjects were 304 people undergoing FWB relationship in the last two years. Data were collected using Miller Social Intimacy, Multidimensional Jealousy, and Relationship Assessment Scales. Hierarchical linear regression and descriptive analysis were used to analyze data. Participants’ experiences of their FBW relationship were also collected and analyzed qualitatively. The result showed that intimacy and jealousy significantly predicted the relationship satisfaction both simultaneously and partially. Jealousy also significantly influences intimacy. A qualitative analysis reveals three categories that describe the emotions and views of the participants towards their FWB  relationships, namely feeling satisfied and happy, feeling less satisfied and regretful, and feeling happy but regretful.Keywords : friends with benefits, intimacy, jealousy, relationship satisfaction. Abstrak: Friends with Benefits (FWB) adalah hubungan pertemanan lawan jenis yang melibatkan hubungan seksual tanpa komitmen, perasaan cinta dan dorongan untuk melanjutkan ke hubungan yang romantis. Penelitian ini bertujuan untuk menguji peranan intimasi dan perasaan cemburu terhadap kepuasan hubungan partisipan yang menjalani hubungan FWB, peranan perasaan cemburu terhadap intimasi, serta mendeskripsikan gambaran emosi dan pandangan partisipan saat menjalani hubungan FWB. Partisipan penelitian berjumlah 304 partisipan, yang menjalani hubungan FWB dalam kurun waktu dua tahun terakhir. Data dikumpulkan dengan skala Miller Social Intimacy, Multi-dimensional Jealousy, dan Relationship Assesment. Data dianalisis menggunakan regresi linier berjenjang. Data kualitatif juga dikumpulkan dan dianalisis secara deskriptif untuk mendalami perasaan dan pandangan partisipan terhadap FWB yang dijalani. Hasil penelitian menunjukkan intimasi dan perasaan cemburu secara signifikan mempengaruhi kepuasan hubungan baik secara simultan maupun parsial. Perasaan cemburu juga secara signifikan memberi pengaruh terhadap intimasi. Secara kualitatif, ditemukan tiga kategori yang menggambarkan emosi dan pandangan partisipan dalam menjalani hubungan FWB, yaitu merasa puas dan senang, kurang puas hingga menyesal, dan merasa senang namun ada penyesalan.

The Role of Visual and Auditory Communication in the Performance of a Joint Team Task

2021 ◽  
pp. 001872082110310
Author(s):  
Adam F. Werner ◽  
Jamie C. Gorman
Keyword(s):  
Spatial Ability ◽  
Visual Cues ◽  
Motor Task ◽  
Auditory Cues ◽  
Multiple Resource Theory ◽  
Coupling Mode ◽  
Multiple Resource ◽  
Auditory Cueing ◽  
Performance Trial

Objective This study examines visual, auditory, and the combination of both (bimodal) coupling modes in the performance of a two-person perceptual-motor task, in which one person provides the perceptual inputs and the other the motor inputs. Background Parking a plane or landing a helicopter on a mountain top requires one person to provide motor inputs while another person provides perceptual inputs. Perceptual inputs are communicated either visually, auditorily, or through both cues. Methods One participant drove a remote-controlled car around an obstacle and through a target, while another participant provided auditory, visual, or bimodal cues for steering and acceleration. Difficulty was manipulated using target size. Performance (trial time, path variability), cue rate, and spatial ability were measured. Results Visual coupling outperformed auditory coupling. Bimodal performance was best in the most difficult task condition but also high in the easiest condition. Cue rate predicted performance in all coupling modes. Drivers with lower spatial ability required a faster auditory cue rate, whereas drivers with higher ability performed best with a lower rate. Conclusion Visual cues result in better performance when only one coupling mode is available. As predicted by multiple resource theory, when both cues are available, performance depends more on auditory cueing. In particular, drivers must be able to transform auditory cues into spatial actions. Application Spotters should be trained to provide an appropriate cue rate to match the spatial ability of the driver or pilot. Auditory cues can enhance visual communication when the interpersonal task is visual with spatial outputs.

scholarly journals Mannoproteins from Cryptococcus neoformans Promote Dendritic Cell Maturation and Activation

2005 ◽  
Vol 73 (2) ◽  
pp. 820-827 ◽  
Author(s):  
Donatella Pietrella ◽  
Cristina Corbucci ◽  
Stefano Perito ◽  
Giovanni Bistoni ◽  
Anna Vecchiarelli
Keyword(s):  
Cryptococcus Neoformans ◽  
Nuclear Factor Κb ◽  
Dendritic Cell Maturation ◽  
Interleukin 12 ◽  
Necrosis Factor Alpha ◽  
Histocompatibility Complex ◽  
Factor Alpha ◽  
Human Dendritic Cells ◽  
Mannose Receptors

ABSTRACT Our previous data show that mannoproteins (MPs) from Cryptococcus neoformans are able to induce protective responses against both C. neoformans and Candida albicans. Here we provide evidence that MPs foster maturation and activation of human dendritic cells (DCs). Maturation was evaluated by the ability of MPs to facilitate expression of costimulatory molecules such as CD40, CD86, CD83, and major histocompatibility complex classes I and II and to inhibit receptors such as CD14, CD16, and CD32. Activation of DCs was measured by the capacity of MPs to promote interleukin-12 and tumor necrosis factor alpha secretion. DC-induced maturation and interleukin-12 induction are largely mediated by engagement of mannose receptors and presume MP internalization and degradation. DC activation leads to IκBα phosphorylation, which is necessary for nuclear factor κB transmigration into the nucleus. MP-loaded DCs are efficient stimulators of T cells and show a remarkable capacity to promote CD4 and CD8 proliferation. In conclusion, we have evidenced a novel regulatory role of MPs that promotes their candidacy as a vaccine against fungi.

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