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Eutrophication: impacts of excess nutrient inputs on freshwater, marine, and terrestrial ecosystems.
The distance decay of similarity in biogeography and ecology
How similarity changes with distance in biological communities is understood, and the distance decay perspective is used as quantitative technique to describe biogeographic pattern to explore whether growth form, dispersal type, rarity, or support affected the rate of distance decay in similarity.
PREDICTION OF LONG‐DISTANCE DISPERSAL USING GRAVITY MODELS: ZEBRA MUSSEL INVASION OF INLAND LAKES
Gravity models are commonly used by geographers to predict migration and interaction between populations and regions. Even though rarely used by ecologists, gravity models allow estimation of…
Energetic Limits to Economic Growth
The human population and economy have grown exponentially and now have impacts on climate, ecosystem processes, and biodiversity far exceeding those of any other species. Like all organisms, humans…
Radiocarbon dating of small terrestrial gastropod shells in North America
Pupillid Land Snails of Eastern North America*
Abstract: The Pupillidae form an important component of eastern North American land snail biodiversity, representing approx. 12% of the entire fauna, 25–75% of all species and individuals at…
PALEOREFUGIA AND NEOREFUGIA: THE INFLUENCE OF COLONIZATION HISTORY ON COMMUNITY PATTERN AND PROCESS
- J. Nekola
- Environmental Science
- 1 December 1999
Two types of biological refugia (habitats that support populations not able to live elsewhere in a landscape) can be defined from relative refugium age as compared to surrounding matrix age;…
The wealth of species: ecological communities, complex systems and the legacy of Frank Preston.
This work provides additional examples to show that four different 'distributions of wealth' (species abundance distributions, species-area and species-time relations, and distance decay of compositional similarity) are not unique to ecology, but have analogues in other physical, geological, economic and cultural systems.
Chronology, sedimentology, and microfauna of groundwater discharge deposits in the central Mojave Desert, Valley Wells, California
- J. Pigati, David M. Miller, J. Bright, S. Mahan, J. Nekola, J. Paces
- Environmental Science, Geography
- 1 November 2011
During the late Pleistocene, emergent groundwater supported persistent and long-lived desert wetlands in many broad valleys and basins in the American Southwest. When active, these systems provided…
The Macroecology of Sustainability
Global consumption rates of vital resources suggest that we have surpassed the capacity of the Earth to sustain current levels, much less future trajectories of growth in human population and economy.