scholarly journals A multivariate phylogenetic comparative method incorporating a flexible function between discrete and continuous traits

2019 ◽  
Author(s):  
Yuki Haba ◽  
Nobuyuki Kutsukake

AbstractOne major challenge of using the phylogenetic comparative method (PCM) is the analysis of the evolution of interrelated continuous and discrete traits in a single multivariate statistical framework. In addition, more intricate parameters such as branch-specific directional selection have rarely been integrated into such multivariate PCM frameworks. Here, originally motivated to analyze the complex evolutionary trajectories of group size (continuous variable) and social systems (discrete variable) in African subterranean rodents, we develop a flexible approach using approximate Bayesian computation (ABC). Specifically, our multivariate ABC-PCM method allows the user to flexibly model an underlying latent evolutionary function between continuous and discrete traits. The ABC-PCM also simultaneously incorporates complex evolutionary parameters such as branch-specific selection. This study highlights the flexibility of ABC-PCMs in analyzing the evolution of phenotypic traits interrelated in a complex manner.


PLoS ONE ◽  
2015 ◽  
Vol 10 (12) ◽  
pp. e0144147 ◽  
Author(s):  
Randi H. Griffin ◽  
Gabriel S. Yapuncich


2005 ◽  
Vol 22 (5) ◽  
pp. 95-111 ◽  
Author(s):  
David Byrne

How can we make complexity work as part of a programme of engaged social science? This article attempts to answer that question by arguing that one way to do this is through a reconstruction of a central tool of a distinctively social science – the comparative method – understood as a procedure for elucidating the complex and multiple systems of causation that generate particular trajectories towards a desired future from the multiple sets of available futures. The article distinguishes between ‘simplistic complexity’ and ‘complex complexity’. ‘Simplistic complexity’ seeks to explain emergence in complex systems as the product of simple rules and defines complex science as the process of establishing such rules. It can and does serve as the basis of technocratic social engineering in the interest of the powerful. In contrast ‘complex complexity’ recognizes the significance of social structure and willed social agency and does not reduce emergence to the mere working out of a restricted set of rules. Research programmes informed by this second approach must necessarily engage with social actors in context – they must be dialogical. This opens up the possibility of ‘complex complexity’ as a frame of reference for action-research directed towards the transformation of complex social systems. Comparative methods, and in particular Ragin’s qualitative comparative analysis approach, when deployed as part of such a programme, can provide meaningful information about the range of possible futures and the different configurations of causes which might generate particular desired social outcomes.



2002 ◽  
Vol 51 (6) ◽  
pp. 873-880 ◽  
Author(s):  
Emília P. Martins ◽  
Elizabeth A. Housworth


Evolution ◽  
2002 ◽  
Vol 56 (1) ◽  
pp. 1 ◽  
Author(s):  
Emília P. Martins ◽  
José Alexandre F. Diniz-Filho ◽  
Elizabeth A. Housworth


Evolution ◽  
2002 ◽  
Vol 56 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Emilia P. Martins ◽  
Joseg13 AlexandreF. Diniz-Filho ◽  
Elizabeth A. Housworth


2012 ◽  
Vol 314 ◽  
pp. 204-215 ◽  
Author(s):  
Krzysztof Bartoszek ◽  
Jason Pienaar ◽  
Petter Mostad ◽  
Staffan Andersson ◽  
Thomas F. Hansen


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