نتایج جستجو برای: tropical and tropical regions that often expose drought

تعداد نتایج: 17038060  

2016
Juan C. Jiménez-Muñoz Cristian Mattar Jonathan Barichivich Andrés Santamaría-Artigas Ken Takahashi Yadvinder Malhi José A. Sobrino Gerard van der Schrier

The El Niño-Southern Oscillation (ENSO) is the main driver of interannual climate extremes in Amazonia and other tropical regions. The current 2015/2016 EN event was expected to be as strong as the EN of the century in 1997/98, with extreme heat and drought over most of Amazonian rainforests. Here we show that this protracted EN event, combined with the regional warming trend, was associated wi...

Abdul Basit, Baharullah Khattak Kashif Rahim, Mubbashir Hussain Nawaz Haider Bashir Shahzad Munir

Dengue is a vector-borne disease caused by dengue virus. According to the recent report of CDC that one-third population of the world are at high risk with Dengue fever. The prevalence of the dengue hemorrhagic fever was found more in tropical and sub-tropical regions of the world. Aedes mosquitoes was reported as the main cause of transmission of dengue virus. So the current study was planned ...

Journal: :Dermatologica 1953
M F Blez

Cutaneous leishmaniasis is endemic in certain tropical and sub-tropical regions, and is sometimes encountered as an imported disease in Norway. The disease is characterized by chronic and painless, but often disfiguring, ulcers that regress after some months to years, leaving atrophic scars. Diagnosis is established by demonstrating amastigote Leishmania bodies by microscopy of Giemsa-stained s...

2012
Gavan S. McGrath Rohan Sadler Kevin Fleming Paul Tregoning Christoph Hinz Erik J. Veneklaas

[1] The Big Dry, a recent drought over southeast Australia, began around 1997 and continued until 2011. We show that between 2002–2010, instead of a localized drought, there was a continent-wide reduction in water storage, vegetation and rainfall, spanning the northwest to the southeast of Australia. Trends in water storage and vegetation were assessed using Gravity Recovery and Climate Experim...

2012
Jennifer L Baltzer Stuart J Davies

Drought and pests are primary abiotic and biotic factors proposed as selective filters acting on species distributions along rainfall gradients in tropical forests and may contribute importantly to species distributional limits, performance, and diversity gradients. Recent research demonstrates linkages between species distributions along rainfall gradients and physiological drought tolerance; ...

2012
Prabhat Oliver Rübel Surendra Byna Kesheng Wu Fuyu Li Michael F. Wehner E. Wes Bethel

We present TECA, a parallel toolkit for detecting extreme events in large climate datasets. Modern climate datasets expose parallelism across a number of dimensions: spatial locations, timesteps and ensemble members. We design TECA to exploit these modes of parallelism and demonstrate a prototype implementation for detecting and tracking three classes of extreme events: tropical cyclones, extra...

2013
Zhu Hua

The southern and tropical southeastern regions of the Yunnan Province in southwestern China have similar monsoonal climates and lowland tropical rain forest vegetations. The floras of both regions are dominated by tropical floristic elements (78.3% in southern Yunnan and 68.83% in southeastern Yunnan), and both belong to the Indo-Malaysian flora at the northern margin of tropical Asia. However,...

Journal: :Journal of Geography (Chigaku Zasshi) 1991

Journal: :Ecology 2011
Kenneth J Feeley Stuart J Davies Rolando Perez Stephen P Hubbell Robin B Foster

Long-term studies have revealed that the structure and dynamics of many tropical forests are changing, but the causes and consequences of these changes remain debated. To learn more about the forces driving changes within tropical forests, we investigated shifts in tree species composition over the past 25 years within the 50-ha Forest Dynamics Plot on Barro Colorado Island (BCI), Panama, and e...

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