生態農業：農業溫室氣體減量【生命科學系/林幸助特聘教授】
| 論文篇名 | 英文：Differential response of macrobenthic abundance and community composition to mangrove vegetation 中文： 不同紅樹林植被對大型底棲動物豐度與群集組成的影響 |
| 期刊名稱 | FORESTS |
| 發表年份,卷數,起迄頁數 | 2021, 12,1403. |
| 作者 | Pan, Sin-He; Ho, Chuan-Wen; Lin, Chiao-Wen; Huang, Shou-Chung; Lin, Hsing-Juh(林幸助)* |
| DOI | 10.3390/f12101403 |
| 中文摘要 | 大規模種植紅樹林已成為補償紅樹林損失的緩解策略。然而，紅樹林植被對大型底棲動物豐度和群落組成的影響仍存在爭議。本研究分析臺灣西海岸四個具有不同環境條件與林分結構的兩種紅樹林純林(水筆仔與海茄苳)與其相鄰裸灘的大型底棲生物群集。結果顯示，部分大型底棲動物分類群僅出現在紅樹林中，表示紅樹林為這些大型底棲動物的關鍵棲息地。而與紅樹林相比，裸灘大型底棲動物群集組成的季節性變化更為明顯，這可能是由於紅樹林提供了豐富的食物來源、減少曝曬造成的溫度變化和提供物理性的庇護功能。然而，紅樹林的螃蟹密度明顯低於裸灘，而水筆仔樹密度與其底內動物密度、海茄苳氣生根與其底表動物密度皆呈現負相關。我們的研究結果顯示，紅樹林植被對大型底棲動物豐度和群落組成的影響是不一致的。我們推斷紅樹林是大型底棲動物的重要棲息地，然而，如果紅樹林密度過高，大型底棲動物密度則會降低。因此，在適度的紅樹林密度下，可提供較高的大型底棲動物多樣性，但不會影響其密度，為最佳化的紅樹林管理策略。 |
| 英文摘要 | The mass planting of mangroves has been proposed as a mitigation strategy to compensate for mangrove loss. However, the effects of mangrove vegetation on the abundance and community composition of macrobenthos remain controversial. The macrobenthic communities in four intact mangrove forests with different conditions and the adjacent nonvegetated mudflats of two mangrove species with distinct stand structures on the western coast of Taiwan were examined. Some macrobenthic taxa occurred only in the mangroves, suggesting macrobenthic critical habitats. Seasonal shift in community composition was more pronounced in the mudflats than in the mangroves, possibly due to the rich food supply, low temperature, and shelter function provided by mangrove forests. However, crab density was always lower in the mangroves than in the mudflats. There was a negative relationship between the stem density of Kandelia obovata (S., L.) and infaunal density. The pneumatophore density of Avicennia marina (Forsk.) correlated negatively with epifaunal density. Our results show that the response of macrobenthic abundance and community composition to mangrove vegetation was inconsistent. We reason that mangroves are critical habitats for the macrobenthos in the mudflats. However, if mangrove tree density is high, we predict that the macrobenthic density will decrease. This suggests that at some intermediate level of mangrove tree density, where there are enough mangrove trees to harbor a macrobenthic community but not enough trees to significantly reduce this density, mangroves management can be optimally achieved to promote the presence of a diverse and dense macrobenthic community. |
| 發表成果與本中心研究主題相關性 | 量化自然碳匯系統紅樹林植被對於底棲動物群集之影響 |
