栗喉蜂虎營巢地環境因子研究報告
本研究針對栗喉蜂虎（Merops philipennus）對於營巢地需求與生活史等相關行為，進行研究。發現栗喉蜂虎主要使用金門的砂地與金門層兩類型的地質環境，其中使用自然型的營巢地族群佔60﹪，半人工型占24﹪，人工型佔有16﹪之族群量；營巢區的外型分類，單面型占使用族群的92﹪，放射型僅佔8﹪。土壤分析中，主要是利用含黏粒量較少的金門層與砂土做為營巢地，不使用黏粒較高的紅土；土壤均為為酸性至弱酸性。
營巢地週邊的水域環境，水質均為為酸性至弱酸性，溶氧值差異不大，導電度則與該水域蜻蜓種類及數量的豐富度呈現正相關。從植物立體結構的調查發現，栗喉蜂虎營巢地的開闊程度，會影響其營巢的意願，而且開闊程度對於天敵的防禦具有密切相關性。食物資源調查可知栗喉蜂虎最重要的食物資源為蜻蛉目占 49﹪，次要的資源為同翅目占17﹪、雙翅目13﹪與鱗翅目占12﹪；另外食繭分析則補充野外觀察遺漏的鞘翅目昆蟲。
未來栗喉蜂虎營巢地的建造，可依本研究的成果進行規劃，不僅提供栗喉蜂虎適合的營巢環境，還可營造一個金門栗喉蜂虎生態系的縮影，讓栗喉蜂虎前來營巢，以達到野生動物經營管理的目的，而且可做為自然資源解說教育良好的題材。
關鍵字：金門、栗喉蜂虎、營巢環境
Abstract
This study was about the colonial nestlingand life history of blue-tailed bee-eaters in Kinman island. We found blue-tailed bee-eaters usually dig their nest holes with Kinman layers and sands. There are 60% on natural type, 24% on hemiartifical type, and 16%on the artifical type. The shape of colony could be divided into single type (92%) and radiative type(only 8%).
Morover, they always dig the nestling holes on the soil wuth few clay, and the nestlin holes never utilize the red soil because of the higher ratio of clay. We also found that the water area around the colony were low to moderate acid and no difference of dissoved oxygen of water. The capacitance degree had postive relationship with the species and abondance of dragonflies. According to the vertical structure of vegetation survey,we thought that wide open site may increase their willing to dig nestling holes because of defense of predators.The most important food resource of blue-tailed bee-eaters were dragonfles(49%), Homoptera(17%), Diptera(13%) and Lepidoptera(12%), and the pellet analysis can increase data of diet that we missed.
The colony estabishment of blue-tailed bee-eaters may fallow this study to plan in the future. It cannot only provide a suitable breeding habitat foe them,but also creat a micro ecosystem of blue-tailed bee-eaters in Kinman island. The purpose of this study is to achieve the goal of wildlife management and education of natural resource.
Key words: Kinmen, blue-tailed bee-eaters,
營巢地週邊的水域環境，水質均為為酸性至弱酸性，溶氧值差異不大，導電度則與該水域蜻蜓種類及數量的豐富度呈現正相關。從植物立體結構的調查發現，栗喉蜂虎營巢地的開闊程度，會影響其營巢的意願，而且開闊程度對於天敵的防禦具有密切相關性。食物資源調查可知栗喉蜂虎最重要的食物資源為蜻蛉目占 49﹪，次要的資源為同翅目占17﹪、雙翅目13﹪與鱗翅目占12﹪；另外食繭分析則補充野外觀察遺漏的鞘翅目昆蟲。
未來栗喉蜂虎營巢地的建造，可依本研究的成果進行規劃，不僅提供栗喉蜂虎適合的營巢環境，還可營造一個金門栗喉蜂虎生態系的縮影，讓栗喉蜂虎前來營巢，以達到野生動物經營管理的目的，而且可做為自然資源解說教育良好的題材。
關鍵字：金門、栗喉蜂虎、營巢環境
Abstract
This study was about the colonial nestlingand life history of blue-tailed bee-eaters in Kinman island. We found blue-tailed bee-eaters usually dig their nest holes with Kinman layers and sands. There are 60% on natural type, 24% on hemiartifical type, and 16%on the artifical type. The shape of colony could be divided into single type (92%) and radiative type(only 8%).
Morover, they always dig the nestling holes on the soil wuth few clay, and the nestlin holes never utilize the red soil because of the higher ratio of clay. We also found that the water area around the colony were low to moderate acid and no difference of dissoved oxygen of water. The capacitance degree had postive relationship with the species and abondance of dragonflies. According to the vertical structure of vegetation survey,we thought that wide open site may increase their willing to dig nestling holes because of defense of predators.The most important food resource of blue-tailed bee-eaters were dragonfles(49%), Homoptera(17%), Diptera(13%) and Lepidoptera(12%), and the pellet analysis can increase data of diet that we missed.
The colony estabishment of blue-tailed bee-eaters may fallow this study to plan in the future. It cannot only provide a suitable breeding habitat foe them,but also creat a micro ecosystem of blue-tailed bee-eaters in Kinman island. The purpose of this study is to achieve the goal of wildlife management and education of natural resource.
Key words: Kinmen, blue-tailed bee-eaters,