نتایج جستجو برای: bioclimatic variables

تعداد نتایج: 314449  

ژورنال: فیزیک زمین و فضا 2020

In the present study, in order to monitor and project climate change impacts on model of the bioclimatic design, a comparative study was conducted between the Middle East and Eurasia as two different climates. This paper used the basic data from 1990 to 2010, and the CMIP5 climate models have been used to project the climate data (radiation, temperature, wind speed, and relative humidity) from ...

Journal: :Journal of Arid Land 2022

Invasive species have been the focus of ecologists due to their undesired impacts on environment. The extent and rapid increase in invasive plant is recognized as a natural cause global-biodiversity loss degrading ecosystem services. Biological invasions can affect ecosystems across wide spectrum bioclimatic conditions. Understanding impact climate change invasion crucial for sustainable biodiv...

2005
COLIN D. MEURK

Introduction Bioclimatic zone systems aim to define reproducible sets of named biogeographical cells that facilitate global comparisons of ecological data. Zones based on extant vegetation loosely reflect contemporary climate, but are vitiated by climate history, chance establishment, genetic potential of local species, terrain instability, intrazonal soils, and biotic disturbance. The system o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده ادبیات و علوم انسانی 1390

the present research has been deducted from a provincial research project which aims at determining the relationship of variables of variables of occupational self-concept, intelligence beliefs and metacognitive with entrepreneurship among the students of payame noor university of kurdistan. the volume of the samples was 1080 students (576 female and 504 male students). the research methodology...

Journal: :Facta universitatis - series: Architecture and Civil Engineering 2009

Journal: :Frontiers in forests and global change 2023

The Socotra Archipelago (Yemen) is an interesting biodiversity hotspot, with a significant proportion of endemic species that have evolved to survive in arid subtropical environment, inscribed as World Heritage Site by UNESCO. terrestrial ecosystems face several threats, including climate change, overgrazing and soil degradation. Island has four the genus Commiphora (Burseraceae). Little known ...

2012
Aaron P. Davis Tadesse Woldemariam Gole Susana Baena Justin Moat

Precise modelling of the influence of climate change on Arabica coffee is limited; there are no data available for indigenous populations of this species. In this study we model the present and future predicted distribution of indigenous Arabica, and identify priorities in order to facilitate appropriate decision making for conservation, monitoring and future research. Using distribution data w...

Journal: :Land 2023

Exploring protected area (PA) siting from a biodiversity perspective is critical in mitigating human impacts on ecosystems. This paper used the MaxEnt model to predict geographic distribution patterns of wetland species Zhengzhou and environmental factors affecting species’ habitat selection. Environmental variables were screened by correlation analysis avoid prediction results due overfitting ...

ژورنال: مرتع 2020
Ashrafzadeh, Mohamadreza, Heydarian, Maryam, Naghipoor, Aliasghar, Teimoori Asl, Sima,

Stipa hohenackeriana in terms of forage production and soil protection is especially important. In this study, was predicted the potential effects of climate change on the future geography distribution of this species in Chaharmahal va Bakhtiari province located in Central Zagros region. To do this, 122 species presence point of this species is collected by GPS, along with 9 environmental varia...

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