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Document Details
Document Type
:
Article In Journal
Document Title
:
Predaceous and :Parasitic, Ground-dwelling Arthropods in Different Ecosystems in Western Saudi Arabia
المفترسات والطفيليات من مفصليات الأرجل التي تقطن التربة في أنظمة بيئية مختلفة بالمنطقة الغربية من المملكة العربية السعودية
Subject
:
Zoology
Document Language
:
English
Abstract
:
Populations of predaceous and parasitic ground-dwelling arthropods have been investigated in three ecosystems: a) natural ecosystem of uncultivated land, b) a continuously cultivated vegetable agroecosystem and c) a permanent agroecosystem of date palm-citrus orchard during an 8 monthspepod starting October 1985 through May 1986 by pitfall trapping to determine their species composition and abundance. Araneae, Formicid~ e., Histeridae and Carabidae were consistently the most abundant of the preda"eous-parasitic arthropod complex. From data analysis Chi square (X2) the ratio of the arthropod taxa present in the three ecosystems showed high significant differences at 1 "I" level of probability. The composition of this complex did not vary in the three ecosystems, but their respective numbers have declined at the onset of winter (November to De, cember). True Spider (Araneae) represented oj distinct group averaged 39.4% and one family of them, the Lycosidae, hilS amounted for 72:1% of all true spiders, harvestmen and sunspiders put10gether.
ISSN
:
1012-1319
Journal Name
:
Science Journal
Volume
:
3
Issue Number
:
1
Publishing Year
:
1411 AH
1991 AD
Number Of Pages
:
7
Article Type
:
Article
Added Date
:
Sunday, October 11, 2009
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
عبدالرحمن فرج الله
A. A. FARAGALLA
Researcher
محمد عمر طاهر
M. O. TAHER
Researcher
Files
File Name
Type
Description
22637.pdf
pdf
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