نتایج جستجو برای: plant species selection

تعداد نتایج: 1157485  

Journal: :محیط زیست طبیعی 0
آزیتا فراشی دانشجوی دکتری مهندسی منابع طبیعی - محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران محمد کابلی استادیار گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران محمود کرمی استاد گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران

raccoon is a native species to north and central america. at present, it is an invasive species in many countries such as japan, germany, russia and iran. raccoon was observed for the first time in gilan province in iran in 1991. this research was employed ecological niche factor analysis (enfa) method to model habitat selection of raccoon in lavandevil wildlife refuge. the results showed that ...

Journal: :Current Biology 2014
Daniel R. Matute Daniel Ortiz-Barrientos

Our understanding of how natural selection drives the speciation process remains a mystery. A recent study shows how selection for flower color differences causes the evolution of reproductive isolation between two plant species of the genus Phlox.

2010
Randall B. Boone

I sought to evolve plant species richness patterns on 22 Galápagos Islands, Ecuador, as an exploration of the utility of evolutionary computation and an agent-based approach in biogeography research. The simulation was spatially explicit, where agents were plant monocultures defined by three niche dimensions, lava (yes or no), elevation, and slope. Niches were represented as standard normal cur...

Plants, in arid and semi-arid regions, are leading to form the Nebka geosystem using the decrease of wind speed and the stabilization of quicksand, which they play an important role in desert greening and protection of the environment and natural resources. Therefore, identification of plant species adapted to the environmental conditions in format of Nebka efficiency assessment is very importa...

One of the most important ways to combat desertification is Increasing the vegetation cover. One of the projects that can provide integrated management of water resources in ecosystems and Reduction of desertification and increase of vegetation cover is The use of unconventional water, including Wastewater of treatment plants urban. In this regard, proper selection of plant species adaptable an...

Journal: Journal of Herbal Drugs 2015
Abas Zarezadeh, Ali Mirhossaini Fatemeh sefikon Mohammad Reza Arabzadeh Sayed Reza tabaei Aghdaei3

Background & Aim: The genus Satureja belonging to the family of lamiaceae and consists of over 235 different species throughout the world. Fourteen species grow naturally in IRAN of which eleven species are endemic. Different species of Satureja are used in food, Healthy, cosmetic and medical industry. This reseach has been carried due to selection and introduction of...

Journal: :American journal of botany 2015
Carolyn M Beans Deborah A Roach

PREMISE OF THE STUDY The ecological consequences of plant competition have frequently been tested, but the evolutionary outcomes of these interactions have gone largely unexplored. The study of species invasions can make an important contribution to this field of research by allowing us to watch ecological and evolutionary processes unfold as a novel species is integrated into a plant community...

Journal: Journal of Herbal Drugs 2015
Abas Zarezadeh, Ali Mirhossaini Fatemeh sefikon Mohammad Reza Arabzadeh Sayed Reza tabaei Aghdaei3

Background & Aim: The genus Satureja belonging to the family of lamiaceae and consists of over 235 different species throughout the world. Fourteen species grow naturally in IRAN of which eleven species are endemic. Different species of Satureja are used in food, Healthy, cosmetic and medical industry. This reseach has been carried due to selection and introduction of...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Anne Kempel Martin Schädler Thomas Chrobock Markus Fischer Mark van Kleunen

Several prominent hypotheses have been posed to explain the immense variability among plant species in defense against herbivores. A major concept in the evolutionary ecology of plant defenses is that tradeoffs of defense strategies are likely to generate and maintain species diversity. In particular, tradeoffs between constitutive and induced resistance and tradeoffs relating these strategies ...

2017
Salvatore Camiolo Gaurav Sablok Andrea Porceddu

Mistranslation errors compromise fitness by wasting resources on nonfunctional proteins. In order to reduce the cost of mistranslations, natural selection chooses the most accurately translated codons at sites that are particularly important for protein structure and function. We investigated the determinants underlying selection for translational accuracy in several species of plants belonging...

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