Phylogenetic relationships of Palaearctic Formica species (Hymenoptera, Formicidae) based on mitochondrial cytochrome B sequences. by Anna V Goropashnaya, Vadim B Fedorov, Bernhard Seifert, Pekka Pamilo

“…Ants of genus Formica demonstrate variation in social organization and represent model species for ecological, behavioral, evolutionary studies and testing theoretical implications of the kin selection theory. Subgeneric division of the Formica ants based on morphology has been questioned and remained unclear after an allozyme study on genetic differentiation between 13 species representing all subgenera was conducted. …”
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Social navigation hypothesis of depressive disorder disproven by Marcin Piotr Nowak

“…Presented models, based on simplistic mathematical assumptions, don’t take into account kin selection and inclusive fitness. Conclusions SNH cannot explain the high prevalence of depressive symptoms and depressive disorder. …”
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Evolution of temperate pathogens: the bacteriophage/bacteria paradigm by Koch Arthur L

“…This model is not simply either pure group or kin selection, but probably is common in a variety of host-parasite pairs in various taxonomic groups. …”
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Ancestral social environments plus nonlinear benefits can explain cooperation in human societies by Nadiah P. Kristensen, Hisashi Ohtsuki, Ryan A. Chisholm

“…We use a mathematically tractable evolutionary model to formalise a chronological narrative that has previously only been investigated verbally: given that ancient humans interacted mostly with family members (genetic homophily), cooperation evolved first by kin selection, and then persisted in situations with nonlinear benefits as homophily declined or even if interactions with strangers became the norm. …”
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The Genetic Relatedness in Groups of Joint-Nesting Taiwan Yuhinas: Low Genetic Relatedness with Preferences for Male Kin. by Mark Liu, Quen-Dian Zhong, Yi-Ru Cheng, Shou-Hsien Li, Shu Fang, Chang-En Pu, Hsiao-Wei Yuan, Sheng-Feng Shen

“…Our results suggest that yuhina cooperation is maintained primarily by direct fitness benefits to individuals; however, kin selection might play a role in partner choice for male yuhinas. …”
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THE PREREQUISITES OF PROSOCIAL BEHAVIOR IN HUMAN ONTOGENY by Irina M. Sozinova, Alexey A. Sozinov, Seppo J. Laukka, Yuri I. Alexandrov

“…These findings are discussed from the perspectives of kin selection theory, group selection theory and the system-evolutionary approach. …”
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Understanding microbial divisions of labor by Zhang, Z, Claessen, D, Rozen, DE

“…We first discuss evolutionary arguments, derived from kin selection, that allow divisions of labor to be maintained in the face of non-cooperative cheater cells. …”

Ecological bases of philopatry and cooperation in Ethiopian wolves by Marino, J, Sillero-Zubiri, C, Johnson, P, Macdonald, D

“…Ecological reasons for philopatry and cooperation are frequently invoked when kin selection is an insufficient explanation. The Ethiopian wolf (Canis simensis) is a specialised rodent hunter that forms family groups with cooperative breeding but also lives as monogamous pairs in suboptimal areas. …”

Evolutionary Dynamics of Coordinated Cooperation by Hisashi Ohtsuki

“…One such example is kin selection, where individuals sharing common ancestry and therefore having the same strategy are more likely to interact with each other. …”
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Norway rats recruit cooperation partners based on previous receipt of help while disregarding kinship by Sacha C. Engelhardt, Niklas I. Paulsson, Michael Taborsky

“…These results show that rats recruit partners to coordinate cooperation by direct reciprocity but not kin discrimination, suggesting that the evolutionary mechanism responsible for the altruistic liberation behavior of Norway rats may be reciprocal altruism rather than kin selection.…”
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Long-lasting, kin-directed female interactions in a spatially structured wild boar social network. by Tomasz Podgórski, David Lusseau, Massimo Scandura, Leif Sönnichsen, Bogumiła Jędrzejewska

“…Cohesive social groups of related individuals and female philopatry of wild boar create conditions for cooperation through kin selection and make the species a good biological model for studying kin structures. …”
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Kinship alters the effects of forced cohabitation on body weight, mate choice and fitness in the rat-like hamster Tscheskia triton by Lin CONG, Dingzhen LIU, Jianxu ZHANG, Xiaoping RAO

“…Furthermore, binary choice tests revealed that social familiarity between either siblings or nonsiblings decreased their investigating time spent in opposite sex conspecific of cage mates and/or their scents as compared with those of non-mates, suggesting effects of social association on mate and kin selection of the hamsters. On the other side, both females and males caged in pair with siblings show a preference between unfamiliar siblings or their scents and the counterparts of nonsiblings after two month separation, indicating that the kin recognition of the hamsters might also rely on phenotype matching. …”
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Consolidating birth-death and death-birth processes in structured populations. by Joshua Zukewich, Venu Kurella, Michael Doebeli, Christoph Hauert

“…This case admits a natural interpretation in terms of kin competition counterbalancing the effect of kin selection. Finally we show that, for any mixed BD-DB update and under weak selection, cooperation is never inhibited by population structure for any social dilemma, including the Snowdrift Game.…”
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Fine-scale population structure of blue whale wintering aggregations in the Gulf of California. by Paula Costa-Urrutia, Simona Sanvito, Nelva Victoria-Cota, Luis Enríquez-Paredes, Diane Gendron

“…Opportunities for kin selection may also influence calf survival and, in consequence, have a positive impact on population demography in this small and endangered population.…”
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Defense against Feeding by Spring Aphid Parasitism in the Upper Leaf Parts of Host Plants by Yuuka Murakami, Hisashi Kawai, Akane Shindo, Eisuke Hasegawa

“…Our results suggest that, as the shoots of a genet are all clones, sustaining the aphids on a few shoots may be beneficial to a genet as a whole through kin selection.…”
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Cooperative blood-feeding and the function and implications of feeding aggregations in the sand fly, Lutzomyia longipalpis (Diptera: Psychodidae). by Frédéric Tripet, Simon Clegg, Dia-Eldin Elnaiem, Richard D Ward

“…In insects, cooperative or altruistic interactions typically occur amongst social insects and are thus explained by kin selection. Here we provide evidence that in Lutzomia longipalpis, a small biting fly and an important vector of leishmaniasis in the New World, cooperative blood-feeding in groups of non-kin individuals results in a strong decrease in saliva expenditure. …”
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Life History and the Transitions to Eusociality in the Hymenoptera by Jack da Silva

“…Although indirect selection through relatives (kin selection) can explain the evolution of effectively sterile offspring that act as helpers at the nest (eusociality) in the ants, bees, and stinging wasps (aculeate Hymenoptera), the genetic, ecological, and life history conditions that favor transitions to eusociality are poorly understood. …”
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Insights from Melipona bicolor hybrid genome assembly: a stingless bee genome with chromosome-level scaffold by Natalia de Souza Araujo, Fernando Ogihara, Pedro Mariano Martins, Maria Cristina Arias

“…As the only known genuinely polygynous bee, M. bicolor’s genome provides a valuable resource for investigating sociality beyond kin selection. Results The genome was assembled employing a hybrid approach combining short and long reads, resulting in 241 contigs spanning 259 Mb (N50 of 6.2 Mb and 97.5% complete BUSCOs). …”
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Structural equation modeling reveals decoupling of ecological and self-perceived outcomes in a garden box social-ecological system by Laura S. Tuominen, Samuli Helle, Heikki Helanterä, Patrik Karell, Lauri Rapeli, Douglas Richmond, Timo Vuorisalo, Jon E. Brommer

“…In addition, the positive association of frequent interactions with higher self-perceived outcomes, and lack of such association with relatedness of group members suggests that reciprocity rather than kin selection explains cooperation. Our findings exemplify the importance of understanding natural resource systems at a very low “grassroot” level.…”
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Toward Unifying Evolutionary Ecology and Genomics to Understand Positive Plant–Plant Interactions Within Wild Species by Harihar Jaishree Subrahmaniam, Dominique Roby, Fabrice Roux

“…From the literature, we identified 91 experiments that were mainly designed to investigate the presence of positive interactions based on two contrasting hypotheses. Kin selection theory predicts partisan help given to a genealogical relative. …”
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