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hkbonewsletter7.pdf
...基線調查而來的第4個蜻蜓新記錄。 已出版的第二版「香港蜻蜓圖鑑」亦有描述這個新發現。 A new dragonfly species, Fukienogomphus sp., was recorded at the beginning of the dragonfly flying period of 2004. This species is a new species to science and is the fourth new dragonfly record found by AFCD since commencement in 2002 of the ecological...
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IssueNo16.pdf
... Inner Mongolia, China. Newsletter of Inner Mongolia Teacher’s University (Natural Science Chinese Edition) 34(1):84-92. (能乃扎布、李俊蘭。2005。內蒙古長蝽科昆蟲及中國新記錄屬種記述。內蒙古帥範大學學報(自然科學漢文版)34(1)：84-92。) Slater, J.A. 1976. Monocots and chinch bugs: a study of host plant relationships in the Lygaeid subfamily Blissinae...
...基線調查而來的第4個蜻蜓新記錄。 已出版的第二版「香港蜻蜓圖鑑」亦有描述這個新發現。 A new dragonfly species, Fukienogomphus sp., was recorded at the beginning of the dragonfly flying period of 2004. This species is a new species to science and is the fourth new dragonfly record found by AFCD since commencement in 2002 of the ecological...
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FinalReport201213pt1.pdf
... collected from calibrated hydrophone and towed hydrophone were opened in Raven Pro 1.4 (Cornell Lab of Ornithology, Ithaca, New York) to digitally process audio signals and produce spectrograms (smoothing window: Hanning; Fast Fourier Transform (FFT): 1024; hop size: 10-11 ms; FFT window overlap: 50...
... THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT Tender for the Provision of Services Tender Ref. : AFCD/NR/01/22 TENDER FORM Contract No. : LODGING OF TENDER To be acceptable as a tender, this form, properly completed in triplicate an...
... THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT Tender for the Provision of Services Tender Ref. : AFCD/NR/01/22 TENDER FORM Contract No. : LODGING OF TENDER To be acceptable as a tender, this form, properly completed in triplicate an...
... THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT Tender for the Provision of Services Tender Ref. : AFCD/NR/01/22 TENDER FORM Contract No. : LODGING OF TENDER To be acceptable as a tender, this form, properly completed in triplicate an...
... THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT Tender for the Provision of Services Tender Ref. : AFCD/NR/01/22 TENDER FORM Contract No. : LODGING OF TENDER To be acceptable as a tender, this form, properly completed in triplicate an...
... 高濃度的環境污染物而導致免疫力較差有關。此外，有關六十隻雌性海豚的產幼 間隔及牠們與幼豚聯繫的研究發現，有很多幼豚只有一次與母親聯繫的目擊紀 錄，這可能與偏低的幼豚存活率有關，擱淺海豚紀錄的數據亦支持這個推斷。偏 低的幼豚存活率可能是由海水污染、及由船隻及觀豚活動所發出的水底噪音造 成。要減輕此問題，最有效方法就是儘快保護重要的海豚育幼生境。此外，海豚 母子的最短聯繫時間平均值為 20.4 個月，而大部分聯繫應不會超過 24 個月。雌 性海豚產幼間隔最長時間的平均值為 62.6 個月。總括來說，香港的中華白海豚 一般較為長壽，但雌性海豚的產幼間隔較長，而牠們的幼豚存活率及產幼能力亦 較低。這些...
...。高速渡 輪所發出的聲響，亦遠高於沒有太多船隻出現的水域之背景噪音水平，此證明當 一些繁忙航道與海豚重要生境重疊，行經該航道的高速船所發出的聲響將大幅提 高水底噪音的水平，而影響海豚在該處的活動。由於這些船隻以高速航行，當它 們在短時間內靠近海豚時，牠們未必有時間作出合適的反應以遠離這些船隻；若 同時有數隻高速船在海豚周圍掠過，尤其是當這些船隻航行的速度、及與海豚保 持的距離經常改變以致難以揣測，海豚為要逃避船隻而所承受的壓力亦因而增 加，令牠們更易被高速船所撞擊，或逼使牠們放棄一些原適合作覓食活動的生境。 另一項有關高速渡輪對本地中華白海豚及江豚的影響評估發現，在 1999- 2010 年間，來...