By Joseph Wood Krutch
Excerpt from The Voice of the desolate tract: A Naturalist's Interpretation
Not many months in the past the creosote used to be lined with shiny yellow pealike ﬂowers; the mesquite with light yel low catkins. N ow the previous is heavy with grey seed and at the mesquite are forming lengthy pods which Indians as soon as ate and which farm animals now locate an surprisingly wealthy food.
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Extra resources for The Voice of the Desert, a Naturalist's Interpretation
Simberloff, D. (2009) The role of propagule pressure in biological invasions. Annual Review of Ecology, Evolution, and Systematics, 40, 81–102. Simberloff, D. (2011) Charles Elton—Neither founder nor siren, but prophet. M. ) Fifty Years of Invasion Ecology: The Legacy of Charles Elton. 11–24. Simberloff, D. and von Holle, B. (1999) Positive interaction of nonindigenous species: invasional meltdown? Biological Invasions, 1, 21–32. Soberón, J. (2007) Grinnellian and Eltonian niches and geographic distributions of species.
2009) Novel ecosystems: implications for conservation and restoration. Trends in Ecology and Evolution, 24, 599–605. J. M. (2011) Invasion ecology and restoration ecology: parallel evolution in two fields of endeavour. M. ) Fifty Years of Invasion Ecology. The Legacy of Charles Elton. 61–9. , et al. (2008) Grasping at the routes of biological invasions: a framework for integrating pathways into policy. Journal of Applied Ecology, 45, 403–14. M. J. (2002) Exotic plant invasions and the enemy release hypothesis.
For instance, plant invasions have transformed grasslands over large tracts of the western United States from native perennial grasslands to ecosystems dominated by alien annuals. The transformation of vegetation dominated by sagebrush to cheatgrass (Bromus tectorum) or red brome (B. madritensis) monocultures, both from the Mediterranean Basin, has initiated a fire regime that prevents the establishment of native perennial species (D’Antonio and Vitousek 1992). 4 Cum. new 50k areas 120 N 300 0 300 100 80 60 40 Kilometers 20 0 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 Year Fig.
The Voice of the Desert, a Naturalist's Interpretation by Joseph Wood Krutch