نتایج جستجو برای: 1992
تعداد نتایج: 54995 فیلتر نتایج به سال:
0
anzali wetland on the south west of caspian sea is a unique ecosystem was registered as ramsar site at 1975. anzali wetland was deteriorated due to numerous disorder and poor water quality. the riverin input were strongly affective in the process of eutrophication where the eastern and central region was more degraded. the first survey on the eutrophication process was conducted at 1969, since ...
چکیده ندارد.
The article describes two new Pterophoridae species from Venezuela: Postplatyptilia lastukhini Ustjuzhanin & Kovtunovich, sp. n. and stekolnikovi Four species: Stenoptilodesbrevipennis (Zeller, 1874), Adaina costarica Gielis, 1992, desolata Arenberger Bond, 1995 Hellinsia devriesi (Landry 1992) are recorded for the fauna of Venezuela first time.
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