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Primates; Journal of Primatology

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https://www.readbyqxmd.com/read/29214419/parabolic-flight-experiencing-zero-gravity-to-envisage-the-future-of-human-evolution
#1
EDITORIAL
Tetsuro Matsuzawa
No abstract text is available yet for this article.
December 6, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/29134410/extractive-foraging-of-toxic-caterpillars-in-wild-northern-pig-tailed-macaques-macaca-leonina
#2
Florian Trébouet, Ulrich H Reichard, Nantasak Pinkaew, Suchinda Malaivijitnond
Extractive foraging in nonhuman primates may involve different levels of technical complexity in terms of the number of actions that must be performed and the manual dexterity involved. We describe the extractive foraging of caterpillars in wild northern pig-tailed macaques (Macaca leonina) at Khao Yai National Park, Thailand. The study group, observed from May to December 2016 (n = 146 days), comprised 60-70 habituated individuals, including 3-4 adult males, 20-23 adult females, and 36-47 immatures. Four adult males and five adult females, observed from September to November 2016 for a total of 24 days, were selected for focal animal sampling...
November 13, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/29116471/primates-social-impact-award-2017
#3
EDITORIAL
Tetsuro Matsuzawa
No abstract text is available yet for this article.
November 7, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/29086889/extractive-foraging-and-tool-aided-behaviors-in-the-wild-nicobar-long-tailed-macaque-macaca-fascicularis-umbrosus
#4
Arijit Pal, Honnavalli N Kumara, Partha Sarathi Mishra, Avadhoot D Velankar, Mewa Singh
Macaques possess a repertoire of extractive foraging techniques that range from complex manipulation to tool-aided behaviors, to access food items that increase their foraging efficiency substantially. However, the complexity and composition of such techniques vary considerably between species and even between populations. In the present study, we report seven such complex manipulative behaviors that include six extractive foraging behaviors, and teeth flossing, in a population of Nicobar long-tailed macaques...
October 31, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/29080055/genetic-assessment-of-an-isolated-endemic-samango-monkey-cercopithecus-albogularis-labiatus-population-in-the-amathole-mountains-eastern-cape-province-south-africa
#5
M Thabang Madisha, Desire L Dalton, Raymond Jansen, Antoinette Kotze
The endemic Samango monkey subspecies (Cercopithecus albogularis labiatus) inhabits small discontinuous Afromontane forest patches in the Eastern Cape, KwaZulu-Natal midlands and southern Mpumalanga Provinces in South Africa. The subspecies is affected by restricted migration between forest patches which may impact on gene flow resulting in inbreeding and possible localized extinction. Current consensus, based on habitat quality, is that C. a. labiatus can be considered as endangered as the small forest patches they inhabit may not be large enough to sustain them...
October 27, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28993925/microhabitat-use-of-the-western-black-crested-gibbon-inhabiting-an-isolated-forest-fragment-in-southern-yunnan-china-implications-for-conservation-of-an-endangered-species
#6
Qingyong Ni, Zongli Liang, Meng Xie, Huailiang Xu, Yongfang Yao, Mingwang Zhang, Yan Li, Ying Li, Xuelong Jiang
Due to the synergistic effects of hunting and habitat loss, populations of the western black-crested gibbon are currently restricted to isolated forest fragments. The home range use of this species in fragmented forests is presumptively related to spatial, food and vegetation attributes, as in other primates. We examined the distributions of different food resources, the structure of the vegetation (tree density, DBH, and height), and the microhabitat use of one gibbon group in an isolated and disturbed forest at Bajiaohe in southern Yunnan, China...
October 9, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28948386/small-scale-variability-in-a-mosaic-tropical-rainforest-influences-habitat-use-of-long-tailed-macaques
#7
John Chih Mun Sha, Siew Chin Chua, Ping Ting Chew, Hassan Ibrahim, Hock Keong Lua, Tze Kwan Fung, Peng Zhang
Pristine habitats have generally been considered to be the most important ecological resource for wildlife conservation, but due to forest degradation caused by human activities, mosaics of secondary forests have become increasingly prominent. We studied three forest types in a mosaic tropical forest consisting of short secondary forest (SS), tall secondary forest (TS) and freshwater swamp forest (SF). These forests differed in stand structure and floristic composition, as well as phenological productivity of fruits, flowers and young leaves...
September 25, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28932999/prolonged-transport-and-cannibalism-of-mummified-infant-remains-by-a-tonkean-macaque-mother
#8
Arianna De Marco, Roberto Cozzolino, Bernard Thierry
Observations of animals' responses to dying or dead companions raise questions about their awareness of states of helplessness or death of other individuals. In this context, we report the case of a female Tonkean macaque (Macaca tonkeana) that transported the body of her dead infant for 25 days and cannibalized its mummified parts. The mother appeared agitated in the first 2 days after the birth. She then took care of her infant's corpse, which progressively dried and became mummified. In a third stage, the mother continued to transport the corpse as it started disintegrating, and she gnawed and consumed some parts of the remains...
September 20, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28918605/food-or-threat-wild-capuchin-monkeys-sapajus-libidinosus-as-both-predators-and-prey-of-snakes
#9
Tiago Falótico, Michele P Verderane, Olívia Mendonça-Furtado, Noemi Spagnoletti, Eduardo B Ottoni, Elisabetta Visalberghi, Patrícia Izar
Snakes present a hazard to primates, both as active predators and by defensive envenomation. This risk might have been a selective pressure on the evolution of primate visual and cognitive systems, leading to several behavioral traits present in human and non-human primates, such as the ability to quickly learn to fear snakes. Primates seldom prey on snakes, and humans are one of the few primate species that do. We report here another case, the wild capuchin monkey (Sapajus libidinosus), which preys on snakes...
September 16, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28965323/the-primates-2017-most-cited-paper-award-is-conferred-upon-the-following-authors-m-a-schillaci-et-al-and-c-hvilsom-et-al
#10
(no author information available yet)
No abstract text is available yet for this article.
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28929250/horse-cognition-and-behavior-from-the-perspective-of-primatology
#11
EDITORIAL
Tetsuro Matsuzawa
No abstract text is available yet for this article.
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28634668/black-and-white-snub-nosed-monkey-rhinopithecus-bieti-feeding-behavior-in-a-degraded-forest-fragment-clues-to-a-stressed-population
#12
Zhi-Pang Huang, Matthew B Scott, Yan-Peng Li, Guo-Peng Ren, Zuo-Fu Xiang, Liang-Wei Cui, Wen Xiao
Rapid global deforestation has forced many of the world's primates to live in fragmented habitats, making the understanding of their behavioral responses to degraded and fragmented habitats a key challenge for their future protection and management. The black-and-white snub-nosed monkey (Rhinopithecus bieti) is an endangered species endemic to southwest China. The forest habitat ranges from near-continuous to fragmented. In this study, we investigated the activity budget and diet of a R. bieti population that live in an isolated and degraded habitat patch at Mt...
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28620843/the-coevolution-of-play-and-the-cortico-cerebellar-system-in-primates
#13
Max Kerney, Jeroen B Smaers, P Thomas Schoenemann, Jacob C Dunn
Primates are some of the most playful animals in the natural world, yet the reason for this remains unclear. One hypothesis posits that primates are so playful because playful activity functions to help develop the sophisticated cognitive and behavioural abilities that they are also renowned for. If this hypothesis were true, then play might be expected to have coevolved with the neural substrates underlying these abilities in primates. Here, we tested this prediction by conducting phylogenetic comparative analyses to determine whether play has coevolved with the cortico-cerebellar system, a neural system known to be involved in complex cognition and the production of complex behaviour...
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28612152/harassment-of-adults-by-immatures-in-bonobos-pan-paniscus-testing-the-exploratory-aggression-and-rank-improvement-hypotheses
#14
Klaree Boose, Frances White
The immatures of many primate species frequently pester adult group members with aggressive behaviors referred to as a type of harassment. Although these behaviors are characteristic of immatures as they develop from infancy through adolescence, there have been few studies that specifically address the adaptive significance of harassment. Two functional hypotheses have been generated from observations of the behavior in chimpanzees. The Exploratory Aggression hypothesis describes harassment as a mechanism used by immatures to learn about the parameters of aggression and dominance behavior and to acquire information about novel, complex, or unpredictable relationships...
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28597332/comparing-the-use-of-live-trees-and-deadwood-for-larval-foraging-by-aye-ayes-daubentonia-madagascariensis-at-kianjavato-and-torotorofotsy-madagascar
#15
Timothy M Sefczek, Domenico Randimbiharinirina, Brigitte M Raharivololona, Joseph D Rabekianja, Edward E Louis
Aye-aye (Daubentonia madagascariensis) feeding behavior has become synonymous with deadwood foraging. However, deadwood is not always the most frequently used substrate, as some aye-ayes use live trees more often to access invertebrates. We sought to compare the frequency of aye-aye invertebrate foraging in deadwood and live trees to better understand their feeding behaviors. We followed two male aye-ayes at Kianjavato, a heavily disturbed habitat in southeastern Madagascar, from October 2013 to October 2014, and one male and one female aye-aye at Torotorofotsy, a continuous forest in eastern Madagascar, from July 2014 to December 2015...
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28585062/comparison-of-the-social-systems-of-primates-and-feral-horses-data-from-a-newly-established-horse-research-site-on-serra-d-arga-northern-portugal
#16
Monamie Ringhofer, Sota Inoue, Renata S Mendonça, Carlos Pereira, Tetsuro Matsuzawa, Satoshi Hirata, Shinya Yamamoto
Horses are phylogenetically distant from primates, but considerable behavioral links exist between the two. The sociality of horses, characterized by group stability, is similar to that of primates, but different from that of many other ungulates. Although horses and primates are good models for exploring the evolution of societies in human and non-human animals, fewer studies have been conducted on the social system of horses than primates. Here, we investigated the social system of feral horses, particularly the determinant factors of single-male/multi-male group dichotomy, in light of hypotheses derived from studies of primate societies...
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28540427/variation-in-gaze-following-between-two-asian-colobine-monkeys
#17
Tao Chen, Jie Gao, Jingzhi Tan, Ruoting Tao, Yanjie Su
Gaze-following is a basic cognitive ability found in numerous primate and nonprimate species. However, little is known about this ability and its variation in colobine monkeys. We compared gaze-following of two Asian colobines-François' langurs (Trachypithecus francoisi) and golden snub-nosed monkeys (Rhinopithecus roxellana). Although both species live in small polygynous family units, units of the latter form multilevel societies with up to hundreds of individuals. François' langurs (N = 15) were less sensitive to the gaze of a human experimenter than were golden snub-nosed monkeys (N = 12)...
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28516338/intergroup-variation-in-robbing-and-bartering-by-long-tailed-macaques-at-uluwatu-temple-bali-indonesia
#18
Fany Brotcorne, Gwennan Giraud, Noëlle Gunst, Agustín Fuentes, I Nengah Wandia, Roseline C Beudels-Jamar, Pascal Poncin, Marie-Claude Huynen, Jean-Baptiste Leca
Robbing and bartering (RB) is a behavioral practice anecdotally reported in free-ranging commensal macaques. It usually occurs in two steps: after taking inedible objects (e.g., glasses) from humans, the macaques appear to use them as tokens, returning them to humans in exchange for food. While extensively studied in captivity, our research is the first to investigate the object/food exchange between humans and primates in a natural setting. During a 4-month study in 2010, we used both focal and event sampling to record 201 RB events in a population of long-tailed macaques (Macaca fascicularis), including four neighboring groups ranging freely around Uluwatu Temple, Bali (Indonesia)...
October 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28894994/mining-noise-affects-loud-call-structures-and-emission-patterns-of-wild-black-fronted-titi-monkeys
#19
M H L Duarte, M C Kaizer, R J Young, M Rodrigues, R S Sousa-Lima
Anthropogenic noise pollution is increasing and can constrain acoustic communication in animals. Our aim was to investigate if the acoustic parameters of loud calls and their diurnal pattern in the black-fronted titi monkey (Callicebus nigrifrons) are affected by noise produced by mining activity in a fragment of Atlantic Forest in Brazil. We installed two passive acoustic monitoring devices to record sound 24 h/day, 7 days every 2 months, for a year; one unit was close to an opencast mine and the other 2...
September 11, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28894949/diet-and-feeding-ecology-of-the-western-hoolock-gibbon-hoolock-hoolock-in-a-tropical-forest-fragment-of-northeast-india
#20
Mrigakhi Borah, Ashalata Devi, Awadhesh Kumar
Forest fragmentation alters plant species diversity and composition, and causes diverse affects on the feeding behavior of wild primates. We investigated the feeding behavior and diet of two groups of western hoolock gibbon (Hoolock hoolock) inhabiting a small isolated forest patch (21 km(2)) in Hollongapar Gibbon Wildlife Sanctuary, Assam, Northeast India, over a year using focal animal sampling. H. hoolock adults spent, on average, 35.2% of their total annual activity budget on feeding, and fed on young leaves, mature leaves, flowers, fruits, petioles, buds and also on animal matter...
September 11, 2017: Primates; Journal of Primatology
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