<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Migliano, A. B.</style></author><author><style face="normal" font="default" size="100%">Page, A. E.</style></author><author><style face="normal" font="default" size="100%">Gómez-Gardeñes, J.</style></author><author><style face="normal" font="default" size="100%">Salali, G. D.</style></author><author><style face="normal" font="default" size="100%">Viguier, S.</style></author><author><style face="normal" font="default" size="100%">Dyble, M.</style></author><author><style face="normal" font="default" size="100%">Thompson, J.</style></author><author><style face="normal" font="default" size="100%">Chaudhary, Nikhill</style></author><author><style face="normal" font="default" size="100%">Smith, D.</style></author><author><style face="normal" font="default" size="100%">Strods, J.</style></author><author><style face="normal" font="default" size="100%">Mace, R.</style></author><author><style face="normal" font="default" size="100%">Thomas, M. G.</style></author><author><style face="normal" font="default" size="100%">Latora, V.</style></author><author><style face="normal" font="default" size="100%">Vinicius, L.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Characterization of hunter-gatherer networks and implications for cumulative culture</style></title><secondary-title><style face="normal" font="default" size="100%">Nature Human Behaviour</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2017/02/08</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.nature.com/articles/s41562-016-0043</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">1</style></volume><pages><style face="normal" font="default" size="100%">0043 - </style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;span style=&quot;color: rgb(34, 34, 34); font-family: Lora, Palatino, Times, &#039;Times New Roman&#039;, serif; font-size: 17px; letter-spacing: 0.17000000178813934px;&quot;&gt;Social networks in modern societies are highly structured, usually involving frequent contact with a small number of unrelated ‘friends’&lt;/span&gt;&lt;span style=&quot;font-size: 12.75px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(34, 34, 34); font-family: Lora, Palatino, Times, &#039;Times New Roman&#039;, serif; letter-spacing: 0.17000000178813934px;&quot;&gt;&amp;nbsp;&lt;a data-track=&quot;click&quot; data-track-dest=&quot;link:1&quot; data-track-source=&quot;reference-anchor&quot; href=&quot;http://www.nature.com/articles/s41562-016-0043#ref1&quot; id=&quot;ref-link-abstract-1&quot; style=&quot;text-decoration: none; vertical-align: baseline; color: rgb(0, 102, 153);&quot; title=&quot; Saramäki, J. et al. Persistence of social signatures in human communication. Proc. Natl Acad. Sci. USA 111, 942–947 (2014). &quot;&gt;1&lt;/a&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;color: rgb(34, 34, 34); font-family: Lora, Palatino, Times, &#039;Times New Roman&#039;, serif; font-size: 17px; letter-spacing: 0.17000000178813934px;&quot;&gt;. However, contact network structures in traditional small-scale societies, especially hunter-gatherers, are poorly characterized. We developed a portable wireless sensing technology (motes) to study within-camp proximity networks among Agta and BaYaka hunter-gatherers in fine detail. We show that hunter-gatherer social networks exhibit signs of increased efficiency&lt;/span&gt;&lt;span style=&quot;font-size: 12.75px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(34, 34, 34); font-family: Lora, Palatino, Times, &#039;Times New Roman&#039;, serif; letter-spacing: 0.17000000178813934px;&quot;&gt;&amp;nbsp;&lt;a data-track=&quot;click&quot; data-track-dest=&quot;link:2&quot; data-track-source=&quot;reference-anchor&quot; href=&quot;http://www.nature.com/articles/s41562-016-0043#ref2&quot; id=&quot;ref-link-abstract-2&quot; style=&quot;text-decoration: none; vertical-align: baseline; color: rgb(0, 102, 153);&quot; title=&quot; Latora, V. &amp;amp; Marchiori, M. Efficient behavior of small-world networks. Phys. Rev. Lett. 87, 198701 (2001). &quot;&gt;2&lt;/a&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;color: rgb(34, 34, 34); font-family: Lora, Palatino, Times, &#039;Times New Roman&#039;, serif; font-size: 17px; letter-spacing: 0.17000000178813934px;&quot;&gt;for potential information exchange. Increased network efficiency is achieved through investment in a few strong links among non-kin ‘friends’ connecting unrelated families. We show that interactions with non-kin appear in childhood, creating opportunities for collaboration and cultural exchange beyond family at early ages. We also show that strong friendships are more important than family ties in predicting levels of shared knowledge among individuals. We hypothesize that efficient transmission of cumulative culture&lt;/span&gt;&lt;span style=&quot;font-size: 12.75px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(34, 34, 34); font-family: Lora, Palatino, Times, &#039;Times New Roman&#039;, serif; letter-spacing: 0.17000000178813934px;&quot;&gt;&amp;nbsp;&lt;a data-track=&quot;click&quot; data-track-dest=&quot;link:3&quot; data-track-source=&quot;reference-anchor&quot; href=&quot;http://www.nature.com/articles/s41562-016-0043#ref3&quot; id=&quot;ref-link-abstract-3&quot; style=&quot;text-decoration: none; vertical-align: baseline; color: rgb(0, 102, 153);&quot; title=&quot; Rendell, L. et al. Why copy others? Insights from the social learning strategies tournament. Science 328, 208–213 (2010). &quot;&gt;3&lt;/a&gt;,​&lt;wbr /&gt;&lt;a data-track=&quot;click&quot; data-track-dest=&quot;link:4&quot; data-track-source=&quot;reference-anchor&quot; href=&quot;http://www.nature.com/articles/s41562-016-0043#ref4&quot; id=&quot;ref-link-abstract-4&quot; style=&quot;text-decoration: none; vertical-align: baseline; color: rgb(0, 102, 153);&quot; title=&quot; Powell, A., Shennan, S. &amp;amp; Thomas, M. G. Late Pleistocene demography and the appearance of modern human behavior. Science 324, 1298–1301 (2009). &quot;&gt;4&lt;/a&gt;,​&lt;wbr /&gt;&lt;a data-track=&quot;click&quot; data-track-dest=&quot;link:5&quot; data-track-source=&quot;reference-anchor&quot; href=&quot;http://www.nature.com/articles/s41562-016-0043#ref5&quot; id=&quot;ref-link-abstract-5&quot; style=&quot;text-decoration: none; vertical-align: baseline; color: rgb(0, 102, 153);&quot; title=&quot; Feldman, M. W. &amp;amp; Laland, K. N. Gene–culture coevolutionary theory. Trends Ecol. Evol. 11, 453–457 (1996). &quot;&gt;5&lt;/a&gt;,​&lt;wbr /&gt;&lt;a data-track=&quot;click&quot; data-track-dest=&quot;link:6&quot; data-track-source=&quot;reference-anchor&quot; href=&quot;http://www.nature.com/articles/s41562-016-0043#ref6&quot; id=&quot;ref-link-abstract-6&quot; style=&quot;text-decoration: none; vertical-align: baseline; color: rgb(0, 102, 153);&quot; title=&quot; Henrich, J. The Secret of our Success: How Culture is Driving Human Evolution, Domesticating our Species, and Making Us Smarter (Princeton Univ. Press, 2015). &quot;&gt;6&lt;/a&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;color: rgb(34, 34, 34); font-family: Lora, Palatino, Times, &#039;Times New Roman&#039;, serif; font-size: 17px; letter-spacing: 0.17000000178813934px;&quot;&gt;may have shaped human social networks and contributed to our tendency to extend networks beyond kin and form strong non-kin ties.&lt;/span&gt;&lt;/p&gt;
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