نتایج جستجو برای: ecological disturbances

تعداد نتایج: 146768  

2012
Virginia H. Dale Frederick J. Swanson Charles M. Crisafulli

The ecological and geological responses following the May 18, 1980, eruption of Mount St. Helens are all about change: the abrupt changes instigated by geophysical disturbance processes and the rapid and gradual changes of ecological response. The explosive eruption involved an impressive variety of volcanic and hydrologic processes: a massive debris avalanche, a laterally directed blast, mudfl...

Journal: :Ecological applications : a publication of the Ecological Society of America 2008
Chris J Peterson Andrea D Leach

Recent conceptual advances address forest response to multiple disturbances within a brief time period, providing an ideal framework for examining the consequences of natural disturbances followed by anthropogenic management activities. The combination of two or more disturbances in a short period may produce "ecological surprises," and models predict a threshold of cumulative disturbance sever...

Journal: :The journal of pain : official journal of the American Pain Society 2011
Akiko Okifuji David H Bradshaw Gary W Donaldson Dennis C Turk

UNLABELLED Fibromyalgia syndrome (FMS) is a chronic musculoskeletal pain disorder characterized by generalized pain, chronic fatigue, sleep disturbance, and a range of other symptoms having no definitive pathology. Consequently, patient evaluations rely on self-report. Ecological Momentary Assessment (EMA) allows frequent real-time collection of self-report measures, removing recall bias and in...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2002
Ricard V Solé José M Montoya Douglas H Erwin

Biotic recoveries following mass extinctions are characterized by a process in which whole ecologies are reconstructed from low-diversity systems, often characterized by opportunistic groups. The recovery process provides an unexpected window to ecosystem dynamics. In many aspects, recovery is very similar to ecological succession, but important differences are also apparently linked to the inn...

2011
Duan Biggs

Understanding the resilience of vulnerable sectors of social-ecological systems is critical in an era of escalating global change. The coral reef tourism sector is highly vulnerable not only to ecological effects of climate change and other anthropogenic disturbances on reefs, but also to shocks such as economic recession and energy price escalation. Commercial tourism enterprises are key playe...

2007
F. Stuart Chapin Valerie T. Eviner Lee M. Talbot Bruce A. Wilcox Dawn R. Magness Carol A. Brewer Daniel S. Keebler

In this chapter we present and evaluate a conceptual framework intended to improve predictability of the role of disease in landscape processes of socioecological systems. On a local scale, disease tends to increase the interactions among patches on a landscape, particularly through changes in the frequency and severity of disturbances and increases in the vulnerability of ecosystems to fundame...

Journal: :International journal of epidemiology 1993
A J McMichael

A large and rapidly growing human population, resource intensive industrial practices, and land exhausting agriculture has overloaded the carrying capacity of the planet's natural systems. Evidence of overloading include global warming, soil degradation and topsoil loss, decreasing stratospheric ozone, depletion of groundwater, reduced genetic and ecosystem diversity, and acidification of wate...

Journal: :Journal of fish biology 2013
M Pinault N Loiseau P Chabanet P Durville H Magalon J P Quod R Galzin

This survey of the marine ichthyofauna of the Piton de La Fournaise volcano at Reunion Island is the first explanatory study of fish community structures in this area. It describes and analyses the main qualitative descriptors of the fish communities (i.e. species richness, diet, life history and geographical distribution) and their spatio-temporal organization. This investigation in 2011 exami...

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