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Spatial Population Models In Spatiotemporally Structured Environments, David Hiebeler
Spatial Population Models In Spatiotemporally Structured Environments, David Hiebeler
University of Maine Office of Research Administration: Grant Reports
Spatial effects, such as habitat fragmentation and the location and size of disturbance events, play a key role in the dynamics of populations. This is true in natural populations (such as herbs living under a forest canopy) as well as human-dominated systems (for example, crop pests in agricultural landscapes). Focusing on the development of spatial population models, the project seeks to better understand how and why spatially autocorrelated disturbances affect the dynamics of populations with mixtures of short- and long-distance dispersal. A variety of disturbances are considered, including (1) static disturbance, representing habitat heterogeneity across a landscape; (2) short-term disturbance …
Cockles In Custody: The Role Of Common Property Arrangements In The Ecological Sustainability Of Mangrove Fisheries On The Ecuadorian Coast, Christine M. Beitl
Cockles In Custody: The Role Of Common Property Arrangements In The Ecological Sustainability Of Mangrove Fisheries On The Ecuadorian Coast, Christine M. Beitl
Anthropology Faculty Scholarship
Scholars of common property resource theory (CPR) have long asserted that certain kinds of institutional arrangements based on collective action result in successful environmental stewardship, but feedback and the direct link between social and ecological systems remains poorly understood. This paper investigates how common property institutional arrangements contribute to sustainable mangrove fisheries in coastal Ecuador, focusing on the fishery for the mangrove cockle (Anadara tuberculosa and A. similis), a bivalve mollusk harvested from the roots of mangrove trees and of particular social, economic, and cultural importance for the communities that depend on it. Specifically, this study examines the emergence of …