Testing hypotheses of trophic level interactions: a boreal forest ecosystem
نویسندگان
چکیده
منابع مشابه
Modeling the forest transition: forest scarcity and ecosystem service hypotheses.
An historical generalization about forest cover change in which rapid deforestation gives way over time to forest restoration is called "the forest transition." Prior research on the forest transition leaves three important questions unanswered: (1) How does forest loss influence an individual landowner's incentives to reforest? (2) How does the forest recovery rate affect the likelihood of for...
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The distributions and abundances of species and populations change almost continuously. Understanding the processes responsible is perhaps ecology s̓ most fundamental challenge. Kelp-forest ecosystems in southwest Alaska have undergone several phase shifts between algaand herbivore-dominated states in recent decades. Overhunting and recovery of sea otters caused the earlier shifts. Studies focus...
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Solar ultraviolet radiation (UVR) can reduce the photosynthesis and growth of benthic diatom communities in shallow freshwater. Nevertheless, greater amounts of algae accumulate in UVR-exposed habitats than in UVR-protected environments. Near-ultraviolet (UVA wavelengths of 320 to 400 nanometers) and mid-ultraviolet (UVB, wavelengths of 280 to 320 nanometers) radiation also inhibit algal consum...
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ژورنال
عنوان ژورنال: Oikos
سال: 2000
ISSN: 0030-1299,1600-0706
DOI: 10.1034/j.1600-0706.2000.890213.x