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The evolution of cooperation: Interacting phenotypes among social partners
No full text© 2017 by The University of Chicago. 0003-0147/2017/18906-56634$15.00. All rights reserved. Models of cooperation among nonkin suggest that social assortment is important for the evolution of cooperation. Theory predicts that interacting phenotypes, whereby an individual’s behavior depends on the behavior of its social partners, can drive such social assortment. We measured repeated indirect genetic effects (IGEs) during cooperative predator inspection in eight populations of Trinidadian guppies (Poecilia reticulata) that vary in their evolutionary history of predation. Four broad patterns emerged that were dependent on river, predation history, and sex: (i) current partner behavior had the largest effect on focal behavior, with fish from low-predation habitats responding more to their social partners than fish from high-predation habitats; (ii) different focal/partner behavior combinations can generate cooperation; (iii) some high-predation fish exhibited carryover effects across social partners; and (iv) high-predation fish were more risk averse. These results provide the first large-scale comparison of interacting phenotypes during cooperation across wild animal populations, highlighting the potential importance of IGEs in maintaining cooperation. Intriguingly, while focal fish responded strongly to current social partners, carryover effects between social partners suggest generalized reciprocity (in which one helps anyone if helped by someone) may contribute to the evolution of cooperation in some, but not all, populations of guppies
College Center Demolished
No full textA view from the front balcony of the MacPhaidin Library of the demolished College Center. This demolition was to make room for the Thomas and Donna May School of Arts & Sciences.https://soar.stonehill.edu/stonehillcampus_images/1017/thumbnail.jp
Through the Foliage
No full textTrees near Ames Pond showing off their autumn colors in the morning light.https://soar.stonehill.edu/stonehillcampus_images/1076/thumbnail.jp
A Rainbow Over Donahue
No full textA rainbow over Donahue Hall on a fall morning in 2016.https://soar.stonehill.edu/stonehillcampus_images/1080/thumbnail.jp
Good Morning
No full textA foggy sunrise in the field that runs along rt 138.https://soar.stonehill.edu/stonehillcampus_images/1079/thumbnail.jp
Fog & Foliage
No full textA fall tree in a foggy field on campus.https://soar.stonehill.edu/stonehillcampus_images/1081/thumbnail.jp
A Foggy Morning
No full textFog over Ames Pond.https://soar.stonehill.edu/stonehillcampus_images/1078/thumbnail.jp
Stonehill Alumni Magazine Winter/Spring 2016
Get PDFThis issue of the magazine includes the following features: Digging In: Two alumni archivists serve as the keepers of all things Stonehill, preserving the College\u27s past while looking toward its future. By Kimberly Lawrence The Unstoppable Mona Rowan: A survivor of the Lebanese Civil War, Arabic instructor Mona Rowan shares her inspiring story of resiliency and perseverance and the lessons she passes on to her students. By Maura King Scully Fear Not! What exactly is fear? Is it helpful or a hindrance? Are we more fearful now than ever before? Three Stonehill experts weigh in on this timely topic. By Tracey Palmerhttps://soar.stonehill.edu/alumnimagazine/1040/thumbnail.jp
Donahue from Behind
No full textThe entrance to Donahue Hall in the early morning light.https://soar.stonehill.edu/stonehillcampus_images/1057/thumbnail.jp
Through the Branches
No full textThe front exterior of the MacPhaidin Library on a snowy, January morning.https://soar.stonehill.edu/stonehillcampus_images/1035/thumbnail.jp