GRAZING SYSTEMS, ECOSYSTEM RESPONSES, AND GLOBAL CHANGE
نویسندگان
چکیده
منابع مشابه
Marine ecosystem responses to Cenozoic global change.
The future impacts of anthropogenic global change on marine ecosystems are highly uncertain, but insights can be gained from past intervals of high atmospheric carbon dioxide partial pressure. The long-term geological record reveals an early Cenozoic warm climate that supported smaller polar ecosystems, few coral-algal reefs, expanded shallow-water platforms, longer food chains with less energy...
متن کاملCommunity and Ecosystem Responses to Elevational Gradients: Processes, Mechanisms, and Insights for Global Change
Community structure and ecosystem processes often vary along elevational gradients. Their responses to elevation are commonly driven by changes in temperature, and many communityand ecosystem-level variables therefore frequently respond similarly to elevation across contrasting gradients. There are also many exceptions, sometimes because other factors such as precipitation can also vary with el...
متن کاملLinking above- and belowground responses to global change at community and ecosystem scales
Cryptic belowground organisms are difficult to observe and their responses to global changes are not well understood. Nevertheless, there is reason to believe that interactions among aboveand belowground communities may mediate ecosystem responses to global change. We used grassland mesocosms to manipulate the abundance of one important group of soil organisms, arbuscular mycorrhizal (AM) fungi...
متن کاملEcosystem oceanography for global change in fisheries.
Overexploitation and climate change are increasingly causing unanticipated changes in marine ecosystems, such as higher variability in fish recruitment and shifts in species dominance. An ecosystem-based approach to fisheries attempts to address these effects by integrating populations, food webs and fish habitats at different scales. Ecosystem models represent indispensable tools to achieve th...
متن کاملGlobal-change drivers of ecosystem functioning modulated by natural variability and saturating responses.
Humans are altering global environment at an unprecedented rate through changes in biodiversity, climate, nitrogen cycle, and land use. To address their effects on ecosystem functioning, experiments most frequently explore one driver at a time and control as many confounding factors as possible. Yet, which driver exerts the largest influence on ecosystem functioning and whether their relative i...
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ژورنال
عنوان ژورنال: Annual Review of Environment and Resources
سال: 2004
ISSN: 1543-5938,1545-2050
DOI: 10.1146/annurev.energy.29.062403.102142