نتایج جستجو برای: destruction of natural habitats

تعداد نتایج: 21201521  

Journal: :Environmental entomology 2010
Duna Madu Mailafiya Bruno Pierre Le Ru Eunice Waitherero Kairu Paul-André Calatayud Stéphane Dupas

The effects of biotic and abiotic factors on stem borer parasitoid diversity, abundance, and parasitism were studied in cultivated and natural habitats in four agroecological zones in Kenya. Comparing habitat types, we found partial support for the "natural enemy" hypothesis, whereby, across all localities, parasitoid diversity was higher in more diverse host plant communities in natural habita...

2017
Agnieszka Rewicz Radomir Jaskuła Tomasz Rewicz Grzegorz Tończyk

BACKGROUND Epipactis helleborine is an Eurasian orchid species which prefers woodland environments but it may also spontaneously and successfully colonise human-made artificial and disturbed habitats such as roadsides, town parks and gardens. It is suggested that orchids colonising anthropogenic habitats are characterised by a specific set of features (e.g., large plant size, fast flower produc...

Journal: :Environmental management 1999
Lovich Bainbridge

/ Large areas of the southern California desert ecosystem have been negatively affected by off-highway vehicle use, overgrazing by domestic livestock, agriculture, urbanization, construction of roads and utility corridors, air pollution, military training exercises, and other activities. Secondary contributions to degradation include the proliferation of exotic plant species and a higher freque...

Journal: :ecopersia 2015
einollah rouhi-moghaddam ebrahim sargazy ahmad gholamalizadeh

the purpose of the present research was to study the properties of natural habitats and growth status of the genus tamarix in miankangi, sistan province, south-eastern iran. selective sampling was used to examine the natural stands structure. then, the one ha-rectangular sample plots were stablished in the stands and surrounding bare lands as control plots. quantitative variables of stands viz....

Journal: :IEEE Access 2023

In this paper, we first discuss the challenges related to habitat monitoring and review possible robotic solutions. Then, propose a framework perform terrestrial exploiting mobility of legged systems. The idea is provide robot with Natural Intelligence introduced as combination environment in which it moves, intelligence embedded design its body, algorithms composing mind. This approach aims so...

Journal: :Journal of the Faculty of Agriculture, Kyushu University 1979

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