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首页> 外文期刊>Southeastern naturalist >Seasonal Diets of an Introduced Population of Fallow Deer on Little St. Simons Island, Georgia
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Seasonal Diets of an Introduced Population of Fallow Deer on Little St. Simons Island, Georgia

机译：佐治亚州小圣西蒙斯岛上引进的小鹿种群的季节性饮食

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摘要

We examined seasonal diets of an introduced population of Dama dama dama (European Fallow Deer) on Little St. Simons Island, GA. We analyzed rumen contents from hunter-harvested deer during fall and winter of 2004-05 and 2005-06. Fecal pellets also were collected monthly from November 2004 to December 2005 and examined microscopically for unique plant-cell characteristics. Fallow Deer utilized a variety of food items based on seasonal availability, although mast and browse were the most abundant rood items in the rumens examined. Fallow Deer preferred Quercus spp. (oak) acorns, but consumed more Sabal palmetto (Cabbage Palin) fruit when acorns were less abundant. Microhistological techniques underestimated the occurrence of highly digestible items such as mast, but were more effective at identifying grasses and browse. Grasses were the most common and abundant forage class in feces, with peak grass use in the summer (67%). Fallow Deer's ability to utilize a wide variety of food items including low-quality forage has contributed to their success in this barrier island ecosystem. However, low productivity, Suppressed body weights, and small antler characteristics are likely due to a low-quality diet and over-population.
机译：我们检查了佐治亚州小圣西蒙斯岛上引进的Dama dama dama（欧洲小鹿）种群的季节性饮食。我们分析了2004-05和2005-06秋冬期间猎人猎取的鹿的瘤胃含量。从2004年11月至2005年12月，每月还收集粪便颗粒，并对其进行显微镜检查以了解其独特的植物细胞特征。小肥鹿根据季节供应情况使用了多种食物，尽管桅杆和浏览器是瘤胃中最丰富的食物。小鹿首选栎属。 （橡树）橡子，但是当橡子不那么丰富时，会消耗更多的Sabal palmetto（卷心菜佩林）果实。微观组织学技术低估了诸如桅杆之类的易消化物品的发生，但在识别草和浏览方面更有效。草是粪便中最常见，最丰富的草料类别，夏季使用草料最多（67％）。小鹿能够利用包括低质草料在内的多种食品，在这种隔离岛生态系统中取得了成功。但是，由于低质量的饮食和人口过多，很可能导致生产率低，体重下降和鹿角小。

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