Female dragons, Ctenophorus pictus, do not prefer scent from unrelated males

2005 ◽  
Vol 53 (5) ◽  
pp. 279 ◽  
Author(s):  
Nina Jansson ◽  
Tobias Uller ◽  
Mats Olsson
Keyword(s):  
Female Choice ◽  
Visual Cues ◽  
Scent Marking ◽  
Differential Response ◽  
Higher Order ◽  
Weak Selection ◽  
Choice Alternative ◽  
Alternative Hypotheses ◽  
Genetic Complementarity ◽  
Female Control

Female choice for genetic complementarity or unrelated males occurs in several vertebrate taxa, but only a few species per higher-order taxon have so far been studied. This is particularly the case in reptiles, where female choice traditionally has been considered to be less important than in most other vertebrates. Many species of reptiles use scent marking in relation to territory use and, consequently, females may use this information to avoid settling on genetically incompatible (e.g. related) males’ territories. We tested the response of female Australian dragon lizards, Ctenophorus pictus, to pheromones from closely related and unrelated males. Contrary to predictions, females did not prefer to associate with scent from unrelated males. The reason for the lack of differential response to related and unrelated males could be explained by weak selection against inbreeding, high dependence on visual cues, female control over copulation, or post-copulatory female choice. Alternative hypotheses are discussed in relation to the biology of the species and lizard biology in general.

Female choice for genetic complementarity in birds: a review

Genetica ◽  
2007 ◽  
Vol 134 (1) ◽  
pp. 147-158 ◽  
Author(s):  
Herman L. Mays ◽  
Tomas Albrecht ◽  
Mark Liu ◽  
Geoffrey E. Hill
Keyword(s):  
Female Choice ◽  
Genetic Complementarity

scholarly journals Postmating Female Control: 20 Years of Cryptic Female Choice

2017 ◽  
Vol 32 (5) ◽  
pp. 368-382 ◽  
Author(s):  
Renée C. Firman ◽  
Clelia Gasparini ◽  
Mollie K. Manier ◽  
Tommaso Pizzari
Keyword(s):  
Female Choice ◽  
Cryptic Female Choice ◽  
Female Control

scholarly journals Recruitment in Swarm-Founding Wasps:Polybia occidentalisDoes not Actively Scent-Mark Carbohydrate Food Sources

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Benjamin J. Taylor ◽  
Erik V. Nordheim ◽  
Teresa I. Schueller ◽  
Robert L. Jeanne
Keyword(s):  
Visual Cues ◽  
Food Source ◽  
Sucrose Solution ◽  
Search Time ◽  
Scent Marking ◽  
Food Sources ◽  
Foraging Efficiency ◽  
Scent Mark ◽  
Social Bees ◽  
Left Behind

Scent marking food resources is expected to enhance foraging efficiency reducing search time. Many social bees exhibit this behavior, but scent-marking is absent in social wasps, except forVespa mandarinia. We tested for scent marking in the swarm-founding wasp,Polybia occidentalis. This wasp has moderately large colonies and utilizes resources that are concentrated in time and space, making scent marking profitable. Also, this wasp uses chemical markings to lead nestmates to a new nest site during swarm emigration, making it possible that it could use the same behavior to recruit nestmates to a food source. Foragers from 11 colonies were given a choice between a previously visited feeder and an unvisited one, both containing a rich, unscented sucrose solution. There was no difference in the number of visits to the two treatments. However, some individuals chose the feeder on one side more often. We conclude that foragers of this species of wasp do not use odor marks left behind by nestmates to find food, but they do exhibit the tendency, when returning to a food source that has not been depleted, to choose a resource based on its relative position, presumably by using visual cues.

scholarly journals The use of chemical and visual cues in female choice in the butterfly Bicyclus anynana

2007 ◽  
Vol 274 (1611) ◽  
pp. 845-851 ◽  
Author(s):  
Katie Costanzo ◽  
Antónia Monteiro
Keyword(s):  
Female Choice ◽  
Visual Cues ◽  
Chemical Cues ◽  
Chemical Signals ◽  
Relative Importance ◽  
Bicyclus Anynana ◽  
Closely Related Species ◽  
Multiple Cues ◽  
The Past ◽  
Close Range

Investigating the relative importance of multiple cues for mate choice within a species may highlight possible mechanisms that led to the diversification of closely related species in the past. Here, we investigate the importance of close-range pheromones produced by male Bicyclus anynana butterflies and determine the relative importance of these chemical cues versus visual cues in sexual selection by female choice. We first blocked putative androconial organs on the fore- and hindwings of males, while also manipulating the ability of females to perceive chemical signals via their antenna. We found that male chemical signals were emitted by both fore- and hindwing pairs and that they play an important role in female choice. We subsequently tested the relative importance of these chemical cues versus visual cues, previously identified for this species, and found that they play an equally important role in female choice in our laboratory setting. In addition, females will mate with males with only one signal present and blocking both androconial organs on males seems to interfere with male to male recognition. We discuss the possible functions of these signals and how this bimodal system may be used in intra- and interspecific mate evaluation.

scholarly journals Neuroplastic Reorganization Induced by Sensory Augmentation for Self-Localization During Locomotion

2021 ◽  
Vol 2 ◽  
Author(s):  
Hiroyuki Sakai ◽  
Sayako Ueda ◽  
Kenichi Ueno ◽  
Takatsune Kumada
Keyword(s):  
Neural Plasticity ◽  
Visual Cues ◽  
Proximal Part ◽  
Higher Order ◽  
Sensory Augmentation ◽  
Auditory Cues ◽  
Localization Accuracy ◽  
Technological Support ◽  
Auditory Responses ◽  
Somatosensory Areas

Sensory skills can be augmented through training and technological support. This process is underpinned by neural plasticity in the brain. We previously demonstrated that auditory-based sensory augmentation can be used to assist self-localization during locomotion. However, the neural mechanisms underlying this phenomenon remain unclear. Here, by using functional magnetic resonance imaging, we aimed to identify the neuroplastic reorganization induced by sensory augmentation training for self-localization during locomotion. We compared activation in response to auditory cues for self-localization before, the day after, and 1 month after 8 days of sensory augmentation training in a simulated driving environment. Self-localization accuracy improved after sensory augmentation training, compared with the control (normal driving) condition; importantly, sensory augmentation training resulted in auditory responses not only in temporal auditory areas but also in higher-order somatosensory areas extending to the supramarginal gyrus and the parietal operculum. This sensory reorganization had disappeared by 1 month after the end of the training. These results suggest that the use of auditory cues for self-localization during locomotion relies on multimodality in higher-order somatosensory areas, despite substantial evidence that information for self-localization during driving is estimated from visual cues on the proximal part of the road. Our findings imply that the involvement of higher-order somatosensory, rather than visual, areas is crucial for acquiring augmented sensory skills for self-localization during locomotion.

Scent Marking in Female Prairie Voles: a Test of Alternative Hypotheses

Ethology ◽  
2002 ◽  
Vol 108 (6) ◽  
pp. 483-494 ◽  
Author(s):  
Jerry O. Wolff ◽  
Stephen G. Mech ◽  
Shawn A. Thomas
Keyword(s):  
Scent Marking ◽  
Prairie Voles ◽  
Alternative Hypotheses
Sign in / Sign up

Export Citation Format

Share Document