The Ecology of Homelessness

This article proposes an ecological model of homelessness drawn from a broad review of the research and practice literature. The spectrum of biopsychosocial risks associated with pathways into homelessness is reviewed, followed by examination of social and individual consequences resulting from periods of homelessness. The temporal dimensions of homelessness, including "first-time,'' "episodic,'' and "chronic,'' are defined and discussed along with the continuum of living arrangements experienced by homeless individuals and families. These constituent domains of the ecology of homelessness are presented in a conceptual map depicting the relationships and interactions among the parts of the model. The intention is to provide a coherent and cogent map to encourage comprehensive integrated efforts as individuals, agencies, and communities strive to prevent and resolve homelessness.