The year 2007 marked a critical event in the world history. For the first time, more than half of
the world population now lives in cities. In many develo** countries, the urbanization …

Background Agricultural systems are amended ecosystems with a variety of properties.
Modern agroecosystems have tended towards high through-flow systems, with energy …

Stephen Gliessman's complementary volumes, Agroecology: The Ecology of Sustainable
Food Systems, Third Edition and Field and Laboratory Investigations in Agroecology, Third …

Tropical homegardens, one of the oldest forms of managed land-use systems, are
considered to be an epitome of sustainability. Although these multispecies production …

With the global population expected to reach over 9 billion by 2050, there is a continuous
need to increase food production and buffer stocks. In this scenario, countries around the …

It is almost certainly the case that many populations have always existed as
metapopulations, leading to the conclusion that local extinctions are common and normally …

Declining biodiversity (BD) is affecting food security, agricultural sustainability, and
environmental quality. Agroforestry (AF) is recognized as a possible partial solution for BD …

Although always a part of city life, urban agriculture has recently attracted increased
attention from diverse groups in the United States, which promote it as a strategy for …

Abstract In the United States, interest in urban agriculture has grown dramatically. While
community gardens have sprouted across the landscape, home food gardens—arguably an …

Medicinal plants are an ecosystem service directly implicated in human well-being. In many
rural communities, they constitute a main treatment for disease or a source of disease …