THE FIRST STUDY ON ESPARTO GRASS NEMATODES IN THE ALGERIAN STEPPES (M'SILA - ALGERIA)
A survey on nematodes of Esparto grass (Stipa tenacissima L.) was carried out in three stations located in the nature reserve of Mergueb (Ain el Hadjel - M'Sila).Our study aims to evaluate the diversity and trophic structure of nematodes associated with this grass plant distributed in the Al...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Editura Universităţii din Oradea
2021-11-01
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| Series: | Natural Resources and Sustainable Development |
| Subjects: | |
| Online Access: | https://docs.google.com/viewerng/viewer?url=http://nrsdj.com/papers/2021-2/10.+Hoceini+Faiza.pdf |
| Summary: | A survey on nematodes of Esparto grass (Stipa tenacissima L.) was carried out in three
stations located in the nature reserve of Mergueb (Ain el Hadjel - M'Sila).Our study aims to evaluate
the diversity and trophic structure of nematodes associated with this grass plant distributed in the
Algerian steppes, case of Mergueb natural reserve.In each station, we took a mixed sample composed
of sub-samples of 200g to 300g of soil, at a depth of up to 30 cm from the ground, with one sample
every 10m on a diagonal projection.
The results revealed the presence of 13 species divided according to their diets into four
trophic groups: phytophagous, fungivorous, bacteriovorous and predatory-omnivorous, whose
densities of the latter vary according to the study stations where the phytophagous nematodes are
more abundant (960 N/dm3
) in the first station. The nematofauna is more abundant in station 1 (2640
N/dm3
) followed by stations 2 and 3 with densities of 1100 N/dm3
and 400 N/dm3
, respectively.
This study illustrates the effect of plant cover on the abundance and trophic structure of
nematodes. The first station, covered by Alfa and some grasses, has the highest nematode densities,
mainly plant parasites. |
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| ISSN: | 2066-6276 2601-5676 |