Date and Time: April 25, Tuesday, 11:15 a.m.
Location: Carlos Santamaría Building, Room B14
Speaker: Davide Vecchi (Centre for Philosophy of Sciences, Department of History and Philosophy of Science, Faculty of Sciences, University of Lisbon, Portugal. In collaboration with Isaac Hernández, Université Toulouse Jean Jaurès, Laboratoire ERRAPHIS, PhiSciVi, France)
Title: Biological individuality and the challenge posed by the ubiquity of multi-species partnerships
Abstract: There exist at least two traditions approaching the problem of biological individuality differently. On the one hand, an evolutionary tradition. From this perspective, organisms are only one among many kinds of biological individuals, and individuation is an evolutionary process. On the other hand, a physiological tradition. From this perspective, individuation is an ontogenetic process that can be viewed as an act of closure from an ever-changing environment. The problem of either view is that partnerships between organisms belonging to different species are ubiquitous in the biological world. The first tradition is forced either to downplay the frequency of partnerships, or their evolutionary significance. The second tradition is forced to relinquish the autonomy of the partners and admit their reproductive, metabolic, developmental and physiologically openness, ultimately characterising closure more prosaically as a tendency rather than as an essential categorical property of biological systems. We shall propose that the many examples of partnership where the metabolic, reproductive, physiological and developmental limits of the partner entities cannot be precisely drawn are an ideal test case to think about biological individuality in new terms.