Helfman Photograph: David R. Foster.

However people use land, it's important to be responsible with it because there's only a certain amount of land on Earth. ME IC D JD JS Ingrid Burke is a professor in the Department of Forest Sciences, Colorado State University, Fort Collins, CO 80523, and works at the Shortgrass Steppe LTER site.

The age and size structures of modern forests are often unimodal and tied to the time since agricultural abandonment or the last episode of logging (Goodale and Aber 2001). A DJ . JL



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. SA Analogous processes operate in lake ecosystems. . B Nearly 1000 years ago, the Maya civilization, which had converted the southern Yucatán Peninsula to a mosaic of fields, house sites, and temple cities, declined, thereby allowing native biota to dominate the landscape again (Turner 1974). Burke EF

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On the island of Nantucket, Massachusetts, which supports one of the greatest concentrations of uncommon and rare species in the eastern United States, an extensive survey of the grassland, shrubland, and heathland conservation areas confirmed that essentially all sites had been intensively altered for agriculture in the past 300 years.

. 0, Butte 0, Charlo At stand to landscape scales, differences in land-use history strongly control modern vegetation patterns (Zimmerman et al. P .

In fact, erosional deposits form a distinct sediment layer (“Maya clay”) in many lakes and wetlands.

Likens MD Steinauer 1998, Goodale and Aber 2001). I served as county commissioner during one of the most tumultuous periods of growth, and then collapse, in Flathead County, from 2005-2010, and that experience along with what I see today reminds me of a story my grandfather used to tell about hauling logs out of the North Fork in the late 1940s. WK Vegetation structure and composition strongly control landscape susceptibility and ecosystem response to fire, wind, and mass movement, and consequently vegetation modification by past land use can alter these responses, with important implications for policy and management. 1998).

This suggests the importance of designing and implementing very long-term experiments and monitoring programs that will facilitate interpretation of legacies and interactions of land use, natural disturbance processes, and climate variation, an appropriate task for long-term ecological research. Brenner 1995, Coffin et al.

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Barry . As traditional land-use practices change or are discontinued, these landscapes are changing and their culturally maintained biota are declining, as in the Nantucket example. Carpenter Forty Residents of Brendan House Test Positive for COVID-19, Legalization of Recreational Marijuana Passes with Comfortable Margins, GPIA’s Fall Passenger Numbers Show Continued Recovery. .

The work described in this article was broadly supported by the National Science Foundation's Long Term Ecological Research program and other state and federal agencies. As forests mature, and as activities including forest conversion increase, these balances will shift. Motzkin MR

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Humans use land for lots of di×erent things.


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