The diversity and distribution of freshwater macrophytes in the wedian of the mountainous northern Oman

Lakshmy Rajesh, Amina Al-Farsi, Reginald Victor*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

ملخص

The paper reports the first study of diversity and distribution of freshwater macrophytes in the wedian (plural of wadi = seasonal river) of the northern Al Hajar Mountain range in Oman. Fifteen lentic habitats in the wedian were surveyed. The number of species, their growth forms and abundance were recorded in the studied habitat of each wadi. In all, 41 species belonging to 14 families and 32 genera were collected. Of these 37 species were emergent and four were submergent. Poaceae was the most diverse emergent family with 17 species. Phragmites australis was the most common emergent followed by Typha domingensis. Among submerged macrophytes, Chara vulgaris had higher frequency of occurrence with low abundance followed by Potamogeton distinctus with relatively high abundance. Floristic diversity was estimated using species richness (Margalef’s D), general diversity (Shannon–Wiener H′), evenness (Pielous’s EH), and dominance (Berger–Parker d) indices for each study habitat. Principal component analysis was used to evaluate the variability using four indices. PC1 and PC2 explained 98.18% of the variability. Some habitats in different watersheds exhibited similar species diversity, but some in the same watershed were different. Baseline data on the freshwater macrophytes in northern Oman are provided here.

اللغة الأصليةEnglish
الصفحات (من إلى)1-12
عدد الصفحات12
دوريةInternational Journal of Environmental Studies
المعرِّفات الرقمية للأشياء
حالة النشرAccepted/In press - يوليو 21 2017

ASJC Scopus subject areas

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  • ???subjectarea.asjc.2300.2303???
  • ???subjectarea.asjc.2300.2311???
  • ???subjectarea.asjc.2300.2310???
  • ???subjectarea.asjc.1900.1903???

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