Navigation Links
Primates take weather into account when searching for fruits

New findings reported this week reveal that at least some primates can use their stored knowledge of recent weather as a tool for guiding their foraging behavior when searching for ripening fruit. The work, which potentially informs our understanding of how cognitive skills developed in humans and other primates, is reported by Karline Janmaat, Richard Byrne, and Klaus Zuberbühler of the University of St. Andrews in the June 20th issue of Current Biology.

The question of why primates, and especially humans, have more strongly developed cognitive skills than other mammals has a long history in science. The most widely accepted notion has been that primates' superior cognitive abilities have evolved in the social realm. Many primate species live in complex societies, and, the argument goes, this favored the evolution of especially developed social skills. Although there is much empirical evidence in favor of the social-intelligence hypothesis, very little work has been conducted to address its alternative, the idea that primate cognition has evolved to deal with problems of an ecological nature, such as foraging for food.

With their new work, the researchers sought to address this anomalous gap. By following a group of wild gray-cheeked mangabeys from dawn to dusk over 210 days in their natural rainforest habitat of Kibale Forest, Uganda, the scientists obtained an almost complete record of their foraging decisions in relation to their preferred food, figs. The data showed that the monkeys were more likely to revisit fig trees (in which they had found fruit before) after a period of warm and sunny days than after a period of cold and cloudy days. Temperature and solar radiation are known to accelerate maturation of fruits and insect larvae inside them. The researchers were able to show that past weather conditions--as opposed to sensory cues such as the smell of ripe fruit--accounted for the behavioral trend they observed.

These findings are co nsistent with the idea that monkeys make foraging decisions on the basis of episodic (or "event-based") memories of whether or not a tree previously carried fruit, combined with knowledge of recent and present weather conditions and a more generalized understanding of the relationship between temperature and solar radiation and the maturation rate of fruit and insect larvae. The findings are also consistent with the idea that the evolution of primate cognitive skills has proceeded, at least in part, as a result of ecological challenges associated with foraging for intermittently available food such as ripening fruit.

*For expert commentary on this work, be sure to see the related Dispatch in this issue of Current Biology from Dr. Michael Platt: "Animal Cognition: Monkey Meteorology."


'"/>

Source:Cell Press


Related biology news :

1. Transplantation Of Monkey Embryonic Stem Cells Reverses Parkinson Disease In Primates
2. Primates on the brink
3. Primates harvest bee nests in Ugandan reserve
4. Shift of weather patterns necessitates rethinking of reforestation methods
5. Scientists to track impact of Asian dust and pollution on clouds, weather, climate change
6. New book expands biological classifications to account for alien life
7. Complex gene interactions account for autism risk
8. Hepatitis B accounts for 40 percent of missing Asian women
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2017)... LOS ANGELES , March 30, 2017  On ... Hack the Genome hackathon at ... This exciting two-day competition will focus on developing health ... experience. Hack the Genome is ... has been tremendous. The world,s largest companies in the ...
(Date:3/29/2017)... 29, 2017  higi, the health IT company that ... North America , today announced a Series B ... of EveryMove. The new investment and acquisition accelerates higi,s ... to transform population health activities through the collection and ... higi collects and secures data today on behalf ...
(Date:3/24/2017)... , March 24, 2017 The Controller General ... Controller Mr. Abdulla Algeen have received the prestigious international IAIR ... Continue Reading ... ... picture) and Deputy Controller Abdulla Algeen (small picture on the right) have ...
Breaking Biology News(10 mins):
(Date:9/20/2017)... ... September 20, 2017 , ... ... leading global provider of engineering, architecture, project controls, construction management, commissioning and ... today announced the unveiling of the iCON™ brand which represents the collective ...
(Date:9/20/2017)... ... September 20, 2017 , ... RoviSys, a leading independent provider ... opening of an office in Taipei, Taiwan. This new location allows RoviSys to ... new relationships in the region. Located in the Neihu area of Taipei, the ...
(Date:9/19/2017)... Vernon HIlls, IL (PRWEB) , ... September 19, 2017 , ... ... use, harsh environments and time. The pocket testers even stand upright with a new ... in the lab or out in the field who need to test water quality. ...
(Date:9/19/2017)... (PRWEB) , ... September 19, ... ... York State Department of Financial Services (NYS DFS) cybersecurity regulations have ... banking, finance and insurance organizations operating in the state (“Covered Entities”) to ...
Breaking Biology Technology: