Market effects offset the reciprocation of grooming in free-ranging redfronted lemurs, Eulemur fulvus rufus

Port, Markus; Clough, Dagmar; Kappeler, Peter M.

doi:10.1016/j.anbehav.2008.08.032

Cited by 60 publications

(60 citation statements)

References 56 publications

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“…Our crucial result, however, lies in the quanti-tative shifts of the exchange rate between grooming and providing food: the positive effect on the grooming ratios of the first providers was roughly half as strong after we added a second provider in each study group, confirming a central tenet of biological market theory (2,3,28). Similar market effects have hitherto been reported only for primates exchanging grooming for access to naturally occurring commodities (4,5,(8)(9)(10)(11)(12).…”

Section: Discussionsupporting

confidence: 59%

“…Expressing the value of grooming in time units also makes our results more easily comparable with a recently published formal market model that used time units to express the value of services (28). We felt confident that grooming patterns underlie market forces, because market effects had already been shown in several studies apart from our own (7)(8)(9)(10)(11)(12).…”

supporting

confidence: 51%

“…However, the stress hypothesis also predicts that high-ranking handlers, who cause more stress (50), would have to groom longer than low-ranking ones. The opposite was found, however (9)(10)(11)29), which makes sense from a market perspective: high-ranking individuals can compensate low amounts of grooming by offering tolerance, restraint, and/or support, which all have higher value the higher ranking the donor is. In our study higherranking individuals also groomed the commodity providers less than lower-ranking ones.…”

Section: Discussionmentioning

confidence: 94%

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Supply and demand determine the market value of food providers in wild vervet monkeys

Fruteau

Voelkl

Damme

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

203

172

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Animals neither negotiate verbally nor conclude binding contracts, but nevertheless regularly exchange goods and services without overt coercion and manage to arrive at agreements over exchange rates. Biological market theory predicts that such exchange rates fluctuate according to the law of supply and demand. Previous studies showed that primates pay more when commodities become scarcer: subordinates groomed dominants longer before being tolerated at food sites in periods of shortage; females groomed mothers longer before obtaining permission to handle their infants when there were fewer newborns and males groomed fertile females longer before obtaining their compliance when fewer such females were present. We further substantiated these results by conducting a 2-step experiment in 2 groups of free-ranging vervet monkeys in the Loskop Dam Nature Reserve, South Africa. We first allowed a single low-ranking female to repeatedly provide food to her entire group by triggering the opening of a container and measured grooming bouts involving this female in the hour after she made the reward available. We then measured the shifts in grooming patterns after we added a second food container that could be opened by another lowranking female, the second provider. All 4 providers received more grooming, relative to the amount of grooming they provided themselves. As biological market theory predicts, the initial gain of first providers was partially lost again after the introduction of a second provider in both groups. We conclude that grooming was fine-tuned to changes in the value of these females as social partners.biological markets ͉ cooperation ͉ economic behavior ͉ primates ͉ reciprocity

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Section: Discussionsupporting

confidence: 59%

supporting

confidence: 51%

Section: Discussionmentioning

confidence: 94%

See 1 more Smart Citation

Supply and demand determine the market value of food providers in wild vervet monkeys

Fruteau

Voelkl

Damme

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

203

172

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“…Aphids exchange honeydew, a nutritious resource, for ant-protection services (15,16). Although biological markets typically involve the exchange of different commodities, primate-grooming markets are an example in which the same commodity is provided by both partners (17,18).…”

Section: Microbial Market Strategiesmentioning

confidence: 99%

Evolution of microbial markets

Werner

Strassmann

Ivens

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

184

139

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Biological market theory has been used successfully to explain cooperative behavior in many animal species. Microbes also engage in cooperative behaviors, both with hosts and other microbes, that can be described in economic terms. However, a market approach is not traditionally used to analyze these interactions. Here, we extend the biological market framework to ask whether this theory is of use to evolutionary biologists studying microbes. We consider six economic strategies used by microbes to optimize their success in markets. We argue that an economic market framework is a useful tool to generate specific and interesting predictions about microbial interactions, including the evolution of partner discrimination, hoarding strategies, specialized versus diversified mutualistic services, and the role of spatial structures, such as flocks and consortia. There is untapped potential for studying the evolutionary dynamics of microbial systems. Market theory can help structure this potential by characterizing strategic investment of microbes across a diversity of conditions. cooperation | mutualism | trade | partner choice

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“…Fernandez-Duque and Erkert (2006) was excluded because the individuals darted are the same ones described in Fernandez-Duque and Rotundo (2003). Kappeler and Erkert (2003), Ostner and Kappeler (1999), Port et al (2009), and Wimmer and Kappeler (2002) report the same captured red-fronted lemurs (Eulemur fulvus rufus) as those described in Ostner and Kappeler (2004), 98 individuals captured between 1996 and 2002; we considered only the latter study. Akinyi et al (2013) report captured individuals that belonged to the same population described in Tung et al (2011).…”

Section: Methodsmentioning

confidence: 99%

Darting Primates: Steps Toward Procedural and Reporting Standards

et al. 2017

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Darting, a common method of capturing wild primates, poses risks to the individuals that must be appropriately minimized. A recent article in the International Journal of Primatology by Cunningham et al. (International Journal of Primatology, 36(5), 894-915, 2015) presented a literature review of the reporting of darting procedures in primatology and anonymously surveyed primatologists on darting methods and their effects, to report general trends in the field. We quantitatively reexamined 29 articles described by the authors as having information on fatalities and/or injuries. We think that the various body masses of primates (1 kg-150 kg), along with their locations and habitat types, and the degree of experience of the darting team, should be considered when estimating mortality and injury rates, and thus preclude the computation of an average mortality value across taxa. Nevertheless, we computed an average (mean) for comparison with the previous analyses. Our mean estimated mortality rate was 2.5% and the mean estimated injury risk was 1.5% (N = 21 articles). Thus, our estimated mortality rate is smaller than the combined mortality and injury rate of 5% reported by Cunningham et al. 2015) and smaller than the mortality rates of medium-sized terrestrial mammals they used for comparison. Our study strongly suggests the critical need for more data to be analyzed in a standardized fashion.

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Market effects offset the reciprocation of grooming in free-ranging redfronted lemurs, Eulemur fulvus rufus

Cited by 60 publications

References 56 publications

Supply and demand determine the market value of food providers in wild vervet monkeys

Supply and demand determine the market value of food providers in wild vervet monkeys

Evolution of microbial markets

Darting Primates: Steps Toward Procedural and Reporting Standards

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