Indonesian aquaculture futures — identifying interventions for reducing environmental impacts

Indonesia is the world’s second largest producer and third largest consumer of seafood. Fish is therefore essential to the nation, both financially and nutritionally. Overfishing and the effects of climate change will, however, limit future landings of capture fisheries, so any increases in future seafood production will need to come from aquaculture. The ecological effects of aquaculture are dependent upon the choice of species, management,…

Spatial location decisions under environmental policy and housing externalities

We study the internal structure of a city, in a model of economic geography, where industry and housing compete for scarce land to locate. We analyze a spatial model of a city in which a single good is produced using land, labor, machinery and emissions of a pollutant, and in which people consume goods, invest in housing services and dislike pollution. The agglomeration effects, caused…

Golf courses and wetland fauna

Golf courses are often considered to be chemical-intensive ecosystems with negative impacts on fauna. Here we provide evidence that golf courses can contribute to the support and conservation of wetland fauna, i.e., amphibians and macroinvertebrates. Comparisons of amphibian occurrence, diversity of macroinvetebrates, and occurrence of species of conservation concern were made between permanent freshwater ponds surveyed on golf courses around Sweden’s capital city, Stockholm, and…

Where to put things? Spatial land management to sustain biodiversity and economic returns

Expanding human population and economic growth have led to large-scale conversion of natural habitat to human-dominated landscapes with consequent large-scale declines in biodiversity. Conserving biodiversity, while at the same time meeting expanding human needs, is an issue of utmost importance. In this paper we develop a spatially explicit landscape-level model for analyzing the biological and economic consequences of alternative land-use patterns. The spatially explicit biological…

Ecological Land-use Complementation’ for Building Resilience in Urban Ecosystems

Few scientific analyses exist on how different land uses can be configured for greater support of biodiversity and ecosystem services. Based on ecological premises, and through a synthesis of information derived from the literature related to urban ecology, this paper elaborates on the potential biodiversity benefits of ‘ecological land-use complementation’ (ELC). The approach builds on the idea that land uses in urban green areas could…

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