Snow Petrel activity on Reeve Hill: long term monitoring data set (1984-2003)
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Long term data sets are useful for identifying temporal changes in the abundance of breeding populations of Antarctic seabirds. This data set is one of only two long term data sets existing for Snow Petrels. The data set comprises records of snow petrel activity for up to 109 nests clearly marked on the colony of Reeve Hill (near Casey station)between 1984 and 2003. A map of the exact nests locations is available as Arcview shapefile.In the database, the following information was recorded in an Excel worksheet:- For each colony check: observer(s) name(s), date and time of the nests check, weather before and during observations- For each nest:1/nests condition (whether filled with ice/snow or (partially) accessible)2/activity level in the nests: presence/absence of birds, what sex if known, other signs of activity (footprints, guano, stomach oil)3/presence of an egg or chick, live or failed4/presence of old remnants in the nest(egg, chicks)5/Any specific commentsNo data are available for years 1987-1988 and 1988-1989. Data are only available for the early part of the breeding season for 1991-1992, 1992-1993 and 1999-2000.The fields in this dataset are:FieldSeasonDateType of ObservationTime startNest NumberNest conditionOld RemnantsActivityEgg/ChickComments
长期数据集有助于识别南极海鸟繁殖种群丰度的时间动态变化。本数据集为现存仅有的两份雪鹱(Snow Petrel)长期数据集之一。该数据集记录了1984年至2003年间,位于凯西站(Casey Station)附近的里夫希尔(Reeve Hill)繁殖群落中,共计109个被清晰标记的雪鹱巢穴的活动观测记录。精确巢穴位置的地图以ArcView shapefile格式提供。
数据库以Excel工作表形式存储以下记录:
——针对每一次群落巡查:巡查人员姓名、巢穴巡查的日期与时间,观测前及观测期间的天气状况;
——针对单个巢穴:
1. 巢穴状态:是否被冰雪覆盖,或(部分)可进入;
2. 巢穴活动等级:是否有鸟类栖息,若可识别则记录其性别,以及其他活动迹象(如足迹、鸟粪、胃油);
3. 是否存在卵或雏鸟,存活或孵化失败;
4. 巢穴内是否存在旧遗留物(卵、雏鸟残骸);
5. 其他特定备注。
1987-1988年及1988-1989年度无可用数据;1991-1992、1992-1993及1999-2000年度仅可获取繁殖季早期的观测数据。
本数据集包含以下字段:
字段依次为:繁殖季(Season)、观测日期(Date)、观测类型(Type of Observation)、观测开始时间(Time start)、巢穴编号(Nest Number)、巢穴状态(Nest condition)、旧遗留物(Old Remnants)、活动等级(Activity)、卵/雏鸟(Egg/Chick)、备注(Comments)。
提供机构:
Australian Antarctic Division



