نتایج جستجو برای: tropical regions

تعداد نتایج: 413322  

Journal: :Proceedings. Biological sciences 2013
Mijoro Rakotoarinivo Anne Blach-Overgaard William J Baker John Dransfield Justin Moat Jens-Christian Svenning

The distribution of rainforest in many regions across the Earth was strongly affected by Pleistocene ice ages. However, the extent to which these dynamics are still important for modern-day biodiversity patterns within tropical biodiversity hotspots has not been assessed. We employ a comprehensive dataset of Madagascan palms (Arecaceae) and climate reconstructions from the last glacial maximum ...

2010
Turkan Togal Ali Sener Neslihan Yucel Semra Demirbilek Feride Sinem Akgun Mustafa Aydogan Muharrem Ucar M. Ozcan Ersoy

UNLABELLED Leptospirosis is a commonly encountered type of zoonosis, especially in tropical regions. There is insufficient data regarding its frequency in non-tropical regions such as Turkey. Although leptospirosis presents with a mild icteric form in nearly 90% of cases, it can lead to Weils disease characterized by fever as well as fulminant hepatorenal and respiratory failure, in approximate...

2008
N. P. Gillett P. A. Stott B. D. Santer

[1] Previous research has identified links between tropical cyclone activity and sea surface temperatures in the tropical cyclogenesis regions of the North Atlantic and Western North Pacific. Other work has demonstrated that warming in these regions is inconsistent with simulated internal variability. After evaluating the variability of a suite of climate models on a range of timescales, we use...

Climatic geography of Tropical Cyclone hazards Affective on the southern coasts of Iran The occurrence of any climatic fringes, including annual tropical storms, leave irreparable risks in its dominated areas. Understanding these events and knowledge of the time of their occurrence can be helpful in managing the unexpected incidents caused by them. Tropical cyclones are important natural turbu...

B. Kazemi H. R. Haddadzadeh, M. Heidarpour Bami P. Khazraiinia

Theileria species are common in tropical and subtropical regions and cause great economical losses inruminants. Two species, T. lestoquardi and T. ovis, are suspected to cause ovine theileriosis in Iran. Theepidemiological aspects of ovine theileriosis in Iran are poorly understood and further investigations bysensitive and precise techniques are required. In a previous study, a sensitive and s...

2015
Paula Nilda Fergnani Adriana Ruggiero Nicholas Pyenson

The extent to which the latitudinal gradient in species richness may be paralleled by a similar gradient of increasing functional or phylogenetic diversity is a matter of controversy. We evaluated whether taxonomic richness (TR) is informative in terms of ecological diversity (ED, an approximation to functional diversity) and phylogenetic diversity (AvPD) using data on 531 mammal species repres...

2007
ZHENGZHAO LUO DIETER KLEY RICHARD H. JOHNSON HERMAN SMIT

Ten years (1994–2004) of measurements of tropical upper-tropospheric water vapor (UTWV) by the Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) are investigated over three regions—the tropical Atlantic, tropical Africa, and the Asian monsoon region—to determine the UTWV climatology and variability on multiple scales and to understand them in relation to moisture trans...

Journal: :Ecology letters 2007
Gary G Mittelbach Douglas W Schemske Howard V Cornell Andrew P Allen Jonathan M Brown Mark B Bush Susan P Harrison Allen H Hurlbert Nancy Knowlton Harilaos A Lessios Christy M McCain Amy R McCune Lucinda A McDade Mark A McPeek Thomas J Near Trevor D Price Robert E Ricklefs Kaustuv Roy Dov F Sax Dolph Schluter James M Sobel Michael Turelli

A latitudinal gradient in biodiversity has existed since before the time of the dinosaurs, yet how and why this gradient arose remains unresolved. Here we review two major hypotheses for the origin of the latitudinal diversity gradient. The time and area hypothesis holds that tropical climates are older and historically larger, allowing more opportunity for diversification. This hypothesis is s...

Journal: :international journal of architecture and urban development 2013
seyed majid mofidi shemirani niloufar nikghadam

effects of neglecting climatic patterns in buildings are more intense in severe climates such as tropical. it isresulting an excessive consumption of fossil fuels and consequently environmental pollutions in and after modern era. the objective of this research is to find climate-oriented intentions and solutions in tropical areas and compare them with dezful and bandar-e-lenge vernacular houses...

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