the recognition of human bioclimatic comfort in geographical area is an important factor for planning of ecotourism. climate is a very important component to identify natural landscape values. for better planning and management of landscape units such as recreational purposes, there is a need for emphasis on the visual aesthetic aspects, and also for understanding the climatic effects on recrea...

Prebreeding survival is an important life history component that affects both parental fitness and population persistence. In birds, prebreeding can be separated into pre- and postfledging periods; carryover effects from the prefledging period may influence postfledging survival. We investigated effects of body condition at fledging, and climatic variation, on postfledging survival of radio-mar...

Aim Although climatic fluctuations occurred world-wide during the Pleistocene, the severity of glacial and drought events – and hence their influence on animal and plant biogeography – differed among regions. Many Holarctic species were forced to warmer-climate refugia during glacial periods, leaving the genetic signature of recent expansion and gene flow among modern-day populations. Montane s...

Acute respiratory infections (ARIs) are among the leading causes of childhood morbidity and mortality in Africa. The effects of climatic factors on occurrence of ARIs in the tropics are not clear. During the years 2006-07, we reviewed the clinical registers of the Chantal Biya Foundation (CBF), Yaoundé, Cameroon, paediatric hospital to investigate the association between climatic factors and AR...

Extreme climatic events are key factors in initiating gradual or sudden changes in forest ecosystems through the promotion of severe, tree-killing disturbances such as fire, blowdown, and widespread insect outbreaks. In contrast to these climatically-incited disturbances, little is known about the more direct effect of drought on tree mortality, especially in high-elevation forests. Therefore p...

The general relationships between vegetation and water yield under different climatic regimes are well established at a small watershed scale in the past century. However, applications of these basic theories to evaluate the regional effects of land cover change on water resources remain challenging due to the complex interactions of vegetation and climatic variability and hydrologic processes ...

1 Abstract Changes in the frequency, duration, and severity of climate extremes are forecast to occur under global climate change. The impacts of climate extremes on forest productivity and health are complicated by potential interactions with disturbance events and forest stand dynamics. Such interactions may lead to non-linear forest growth responses to climate and disturbance involving thres...

Controversy surrounds climate change policy analyses because of uncertainties in climatic effects, impacts, mitigation costs and their distributions. Here ∗This research was conducted while the author was at the Institute for International Studies, Stanford University.