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Shared physical custody (SPC) is a care arrangement following parental separation, whereby children alternatively reside with their mother and father. Very little is known about how family policies accommodate SPC, which is all the more unfortunate, as it represents a key opportunity to understand how family policies can efficiently facilitate shared parenting. To address this gap, this article presents a modest attempt at designing a new comparative family policy approach that considers SPC arrangements, by examining the extent to which Belgian, French and Italian family policies accommodate a more equal sharing of parenting post-divorce. In so doing, we encourage studies of defamilialization to take better account of the diversity of contemporary family forms. The theoretical section traces back key feminist debates around defamilialization and proposes to consider SPC arrangements as an 'atypical' family configuration that best illustrates contemporary tensions around defamilialization and gender equality. It also takes stock of the few studies of family policy and SPC to highlight key issues at stake. The analysis section starts with the main characteristics of the family law, welfare regime and family policies of the three countries. Then, we examine a selection of emblematic and national-level family policies from the following areas: (1) Family benefits; (2) Financial support to access to services; and (3) Tax measures. Our comparison focuses on three main criteria: scope; entitlement; and shareability of benefits between parents in the context of SPC. Our analysis reveals the variety of approaches to SPC in family polices across countries and policy areas, and the significant lack of support for a more equitable distribution of parenting within SPC. We conclude by highlighting the usefulness of taking SPC into account in reflecting on and evaluating the implementation of defamilialization policies, and by identifying some of the challenges to be met by future research. [ABSTRACT FROM AUTHOR]

Understanding the population dynamics of rare and endangered plant species is essential to elaborate correct management plans for their conservation. Demographic monitoring of individual species provides valuable information here. However, demographic studies are limited to species for which one can follow individuals through their life history. They are also time consuming, making it difficult to make simultaneous studies of several species with different populations in order to have a more general assessment of rare species dynamics in a given region. In this paper, we illustrate how the use of an approach based on transition frequencies allows for the simultaneous study and comparison of trends in 32 populations of six species with very different life histories and growth forms in the Mediterranean region of the South of France. The results show significant effects of spring rainfall deficit on annual population dynamics but not for perennial species that show a delayed response, and illustrate population declines due to direct human impacts on populations in the study region. Our study illustrates the alarming overall vulnerability of populations and is simple and rapid to apply in a multi-population and multi-species context. It could thus be used by conservation management staff to construct assessments of population vulnerability elsewhere. [ABSTRACT FROM AUTHOR]