Control of Spatial Choice by Personal Information and Social Information

2014 ◽  
Author(s):  
Michael Brown ◽  
Marie Saxon
2018 ◽  
Vol 15 (148) ◽  
pp. 20180578 ◽  
Author(s):  
Hannah J. Williams ◽  
Andrew J. King ◽  
Olivier Duriez ◽  
Luca Börger ◽  
Emily L. C. Shepard

Vultures are thought to form networks in the sky, with individuals monitoring the movements of others to gain up-to-date information on resource availability. While it is recognized that social information facilitates the search for carrion, how this facilitates the search for updrafts, another critical resource, remains unknown. In theory, birds could use information on updraft availability to modulate their flight speed, increasing their airspeed when informed on updraft location. In addition, the stylized circling behaviour associated with thermal soaring is likely to provide social cues on updraft availability for any bird operating in the surrounding area. We equipped five Gyps vultures with GPS and airspeed loggers to quantify the movements of birds flying in the same airspace. Birds that were socially informed on updraft availability immediately adopted higher airspeeds on entering the inter-thermal glide; a strategy that would be risky if birds were relying on personal information alone. This was embedded within a broader pattern of a reduction in airspeed (approx. 3 m s −1 ) through the glide, likely reflecting the need for low speed to sense and turn into the next thermal. Overall, this demonstrates (i) the complexity of factors affecting speed selection over fine temporal scales and (ii) that Gyps vultures respond to social information on the occurrence of energy in the aerial environment, which may reduce uncertainty in their movement decisions.


2017 ◽  
Vol 284 (1861) ◽  
pp. 20171083 ◽  
Author(s):  
David J. White ◽  
Hayden B. Davies ◽  
Samuel Agyapong ◽  
Nora Seegmiller

Brood parasites face considerable cognitive challenges in locating and selecting host nests for their young. Here, we test whether female brown-headed cowbirds, Molothrus ater , could use information acquired from observing the nest prospecting patterns of conspecifics to influence their own patterns of nest selection. In laboratory-based experiments, we created a disparity in the amount of personal information females had about the quality of nests. Females with less personal information about the quality of two nests spent more time investigating the nest that more knowledgeable females investigated. Furthermore, there was a strong negative relationship between individual's ability to track nest quality using personal information and their tendency to copy others. These two contrasting strategies for selecting nests are equally effective, but lead to different patterns of parasitism.


2015 ◽  
Vol 112 ◽  
pp. 130-137 ◽  
Author(s):  
Michael F. Brown ◽  
Marie E. Saxon ◽  
Teagan Bisbing ◽  
Jessica Evans ◽  
Jennifer Ruff ◽  
...  

Author(s):  
Vanesa Mirzaee ◽  
Maryam Najafian Razavi ◽  
Lee Iverson

This paper describes an innovative tagging model incorporated into a web 2.0 social and personal information management application. Our work utilizes web 2.0 tagging concepts in a new way in an effort to provide better support for users’ needs for contextualization and personalization of their information spaces for both personal…Cet article décrit un modèle innovateur d’étiquetage intégré à une application de gestion de l’information personnelle et sociale du Web 2.0. Notre travail utilise les concepts de l’étiquetage du Web 2.0 d’une manière nouvelle, afin de mieux subvenir aux besoins des utilisateurs pour la contextualisation et la personnalisation de leurs espaces informationnels, pour des fins personnelles… 


2016 ◽  
Vol 12 (6) ◽  
pp. 20160188 ◽  
Author(s):  
Marco Smolla ◽  
Sylvain Alem ◽  
Lars Chittka ◽  
Susanne Shultz

To understand the relative benefits of social and personal information use in foraging decisions, we developed an agent-based model of social learning that predicts social information should be more adaptive where resources are highly variable and personal information where resources vary little. We tested our predictions with bumblebees and found that foragers relied more on social information when resources were variable than when they were not. We then investigated whether socially salient cues are used preferentially over non-social ones in variable environments. Although bees clearly used social cues in highly variable environments, under the same conditions they did not use non-social cues. These results suggest that bumblebees use a ‘copy-when-uncertain’ strategy.


2021 ◽  
Vol 9 ◽  
pp. 1-42
Author(s):  
Jessica R. Frampton ◽  
Jesse Fox ◽  
◽  

Affordances of Internet sites and Internet-based applications make personal information about romantic partners, friends, family members, and strangers easy to obtain. People use various techniques to find information about others, capitalizing on online affordances by using search engines to find relevant websites and databases; scouring the target’s social media or social networking site presence; accessing information about the target via their links or network association with others on social media; or asking questions or crowdsourcing information through online channels. Researchers have coined an assortment of terms to describe online social information seeking behaviors, such as interpersonal electronic surveillance, social surveillance, monitoring, patient-targeted Googling, cybervetting, websleuthing, human flesh search, lateral surveillance, Facebook surveillance, and Facebook stalking. Although considerable research has examined these behaviors, there has been little effort to clarify the concepts themselves. As a result, the literature is currently full of inconsistent and overlapping conceptualizations. To synthesize these concepts for future research, this review examines 73 online social information seeking concepts extracted from 186 articles. Specifically, the concepts are reviewed in light of their scope; the information seeker or target of information seeking (e.g., romantic partners, parents, children, employees, criminals); motives for information seeking (e.g., uncertainty, threat, curiosity); and the intensity of the behavior. Recommendations are provided for future research, such as employing clear conceptualizations and incorporating affordances. Finally, we offer a decision tree that researchers can use to help select appropriate terms to use in their work moving forward.


PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8164 ◽  
Author(s):  
Bradley F. Blackwell ◽  
Thomas W. Seamans ◽  
Travis L. DeVault ◽  
Steven L. Lima ◽  
Morgan B. Pfeiffer ◽  
...  

Background Animal–vehicle collisions represent substantial sources of mortality for a variety of taxa and can pose hazards to property and human health. But there is comparatively little information available on escape responses by free-ranging animals to vehicle approach versus predators/humans. Methods We examined responses (alert distance and flight-initiation distance) of focal Canada geese (Branta canadensis maxima) to vehicle approach (15.6 m·s−1) in a semi-natural setting and given full opportunity to escape. We manipulated the direction of the vehicle approach (direct versus tangential) and availability of social information about the vehicle approach (companion group visually exposed or not to the vehicle). Results We found that both categorical factors interacted to affect alert and escape behaviors. Focal geese used mostly personal information to become alert to the vehicle under high risk scenarios (direct approach), but they combined personal and social information to become alert in low risk scenarios (tangential approach). Additionally, when social information was not available from the companion group, focal birds escaped at greater distances under direct compared to tangential approaches. However, when the companion group could see the vehicle approaching, focal birds escaped at similar distances irrespective of vehicle direction. Finally, geese showed a greater tendency to take flight when the vehicle approached directly, as opposed to a side step or walking away from the vehicle. Conclusions We suggest that the perception of risk to vehicle approach (likely versus unlikely collision) is weighted by the availability of social information in the group; a phenomenon not described before in the context of animal–vehicle interactions. Notably, when social information is available, the effects of heightened risk associated with a direct approach might be reduced, leading to the animal delaying the escape, which could ultimately increase the chances of a collision. Also, information on a priori escape distances required for surviving a vehicle approach (based on species behavior and vehicle approach speeds) can inform planning, such as location of designated cover or safe areas. Future studies should assess how information from vehicle approach flows within a flock, including aspects of vehicle speed and size, metrics that affect escape decision-making.


2019 ◽  
Vol 286 (1899) ◽  
pp. 20182945 ◽  
Author(s):  
Jessica R. McLachlan ◽  
Chaminda P. Ratnayake ◽  
Robert D. Magrath

Information about predators can mean the difference between life and death, but prey face the challenge of integrating personal information about predators with social information from the alarm calls of others. This challenge might even affect the structure of interspecific information networks: species vary in response to alarm calls, potentially because different foraging ecologies constrain the acquisition of personal information. However, the hypothesis that constrained personal information explains a greater response to alarm calls has not been experimentally tested. We used a within-species test to compare the antipredator responses of New Holland honeyeaters, Phylidonyris novaehollandiae , during contrasting foraging behaviour. Compared with perched birds, which hawk for insects and have a broad view, those foraging on flowers were slower to spot gliding model predators, showing that foraging behaviour can affect predator detection. Furthermore, nectar-foraging birds were more likely to flee to alarm call playbacks. Birds also assessed social information relevance: more distant calls, and those from another species, prompted fewer flights and slower reaction times. Overall, birds made flexible decisions about danger by integrating personal and social information, while weighing information relevance. These findings support the idea that a strategic balance of personal and social information could affect community function.


2020 ◽  
Vol 375 (1802) ◽  
pp. 20190473 ◽  
Author(s):  
Liisa Hämäläinen ◽  
Rose Thorogood

Ever since Alfred R. Wallace suggested brightly coloured, toxic insects warn predators about their unprofitability, evolutionary biologists have searched for an explanation of how these aposematic prey evolve and are maintained in natural populations. Understanding how predators learn about this widespread prey defence is fundamental to addressing the problem, yet individuals differ in their foraging decisions and the predominant application of associative learning theory largely ignores predators' foraging context. Here we revisit the suggestion made 15 years ago that signal detection theory provides a useful framework to model predator learning by emphasizing the integration of prior information into predation decisions. Using multiple experiments where we modified the availability of social information using video playback, we show that personal information (sampling aposematic prey) improves how predators (great tits, Parus major ) discriminate between novel aposematic and cryptic prey. However, this relationship was not linear and beyond a certain point personal encounters with aposematic prey were no longer informative for prey discrimination. Social information about prey unpalatability reduced attacks on aposematic prey across learning trials, but it did not influence the relationship between personal sampling and discrimination. Our results suggest therefore that acquiring social information does not influence the value of personal information, but more experiments are needed to manipulate pay-offs and disentangle whether information sources affect response thresholds or change discrimination. This article is part of the theme issue ‘Signal detection theory in recognition systems: from evolving models to experimental tests’.


2018 ◽  
Vol 15 (142) ◽  
pp. 20180155 ◽  
Author(s):  
Alan Novaes Tump ◽  
Max Wolf ◽  
Jens Krause ◽  
Ralf H. J. M. Kurvers

Collective intelligence refers to the ability of groups to outperform individuals in solving cognitive tasks. Although numerous studies have demonstrated this effect, the mechanisms underlying collective intelligence remain poorly understood. Here, we investigate diversity in cue beliefs as a mechanism potentially promoting collective intelligence. In our experimental study, human groups observed a sequence of cartoon characters, and classified each character as a cooperator or defector based on informative and uninformative cues. Participants first made an individual decision. They then received social information consisting of their group members' decisions before making a second decision. Additionally, individuals reported their beliefs about the cues. Our results showed that individuals made better decisions after observing the decisions of others. Interestingly, individuals developed different cue beliefs, including many wrong ones, despite receiving identical information. Diversity in cue beliefs, however, did not predict collective improvement. Using simulations, we found that diverse collectives did provide better social information, but that individuals failed to reap those benefits because they relied too much on personal information. Our results highlight the potential of belief diversity for promoting collective intelligence, but suggest that this potential often remains unexploited because of over-reliance on personal information.


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