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ID 28483
本文ファイル
著者
Leon-rotaquio Jr., Eutiquio de
Rotaquio, Ronaldo L.
キーワード
Kandelia candel
Aurora Philippines
major mangroves
minor mangroves
mangrove associates
specialized groups
threats
density
frequency
dominancy
importance value (IV)
NDC
社会
抄録(英)
This study aimed to conduct a preliminary identification of floral mangrove species, categorizing them as major mangrove species, minor mangrove species, mangrove associates, specialized groups and describing the present conditions and threats in the mangrove areas of Aurora- the only known site of Kandelia candel in the Philippines. The results showed that there are thirty (30) major and minor mangrove species; twenty-two (22) mangrove associates and ten (10) specialized groups identified. The three species which have the highest density, frequency, dominancy and importance values (IV) are Avicennia marina, Lumnitzera littorea and Rhizophora apiculata, while Ceriops decandra, Pemphis acidula and Sonneratia caseolaries are the species having the lowest importance percentage values respectively. Kandelia candel, on the other hand, was placed 18th in terms of its rank and/or order among the twenty seven (27) mangrove species subjected for vegetational analysis. Upon comparison with existing data, 56% of the total mangrove species known in the world and almost 77% of the species known in the Philippines alone are present in Aurora. Major problems observed include conversion of mangrove areas into private fishponds for tilapia (Oreochromis niloticus niloticus) and milkfish (Chanos chanos) culture, conversion to residential and beach development, charcoal production and mud siltation due to the continuing logging operations in the upper parts of the Sierra Madre mountain in the province.
掲載誌名
国際協力研究誌
13巻
1号
開始ページ
61
終了ページ
78
出版年月日
2007-03-30
出版者
広島大学大学院国際協力研究科
ISSN
1341-0903
NCID
SelfDOI
言語
英語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
国際協力研究科
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