نتایج جستجو برای: amphibians

تعداد نتایج: 7922  

Journal: :Current Biology 2018

Climate change is currently considered a serious threat for many species and recognized as one of the most important factors in the global biodiversity loss. Among animal groups, amphibians are known to be among the most sensitive groups of vertebrates to climate change due to their inability to travel long distances, and mountain habitat species are more exposed to climate change pressures tha...

Journal: :زیست شناسی جانوری تجربی 0
حمید درویش نیا عضو هیات علمی، گروه زیست شناسی، دانشگاه پیام نور، صندوق پستی 3697-19395 تهران، ایران

abstract since amphibians feeds on insects, they have crucial role in controlling the population of pests in various ecosystems. although their importance is clear, but systematics and biodiversity of them has been poorly studied. the aim of this research, conducted in 2014, is to identify amphibians of talesh township and their biological roles in pest control. sampling procedure has been done...

Journal: :international journal of aquatic biology 0
pammi singh department of ecology and environmental science, assam university, silchar-788011, assam, india. mithra dey department of ecology and environmental science, assam university, silchar-788011, assam, india. sunkam narayana ramanujam department of zoology, north eastern hill university, shillong 793022, meghalaya, india.

heavy metal pollution plays an important role in global biodiversity decline. however, there is paucity of information concerning the effects of metals on amphibians. in the present study, investigations were made on the accumulation of heavy metals, copper (cu) and lead (pb) in water, sediment and tadpoles inhabiting the water bodies of barak valley, assam. tadpoles of six different anuran spe...

Journal: :Fragmenta Faunistica 2010

Journal: :ILAR Journal 2007

Journal: :Fragmenta Faunistica 2010

Journal: :Fragmenta Faunistica 2010

Journal: :The Japanese Journal of Genetics 1952

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