The demographic consequences of releasing a population of red deer from culling
The demographic consequences of releasing a population of red deer from culling
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DOI：
10.1890/03-0009
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发表时间：
2004-02-01
期刊：
影响因子：
4.8
通讯作者：
Clutton-Brock, T
中科院分区：
文献类型：
--
作者：
Coulson, T;Guinness, F;Clutton-Brock, T
人口密度的变化可以产生空间和人口效应，对人口规模的波动产生多年的影响。虽然时间滞后对人口的影响已被纳入时间序列数据的分析，但很少有详细说明密度变化对人口的长期影响。我们使用详细的，基于个人的数据，从人口的红鹿（马鹿）从苏格兰朗姆酒岛的北座，描述长期的人口和空间的影响，密度的变化。1972年，该种群从狩猎压力中解脱出来。在随后的10年中，人口密度翻了一番，自1980年代初以来，一直围绕生态承载能力波动。停止捕杀导致了持续30年的长期短暂的空间和人口影响。不同的人口动态变化率对人口密度的增加有不同的反应，从而导致人口的人口结构和空间结构发生长期变化。这些变化改变了不同年龄和性别的人口动态比率对人口规模年度变化的影响。这些变化仍在进行中，30年后停止扑杀，这表明密度的变化可能会产生短暂的动态，持续几代人。
A change in population density can generate spatial and demographic effects that can have an impact on fluctuations in population Size for many years. Although the demographic effects of time lags have been incorporated into analyses of time series data, there are few detailed descriptions of the long-term demographic consequences of a change in density. We use detailed, individual-based data from a population of red deer (Cervus elaphus) from the North Block of the Isle of Rum, Scotland, to describe long-term demographic and spatial effects of a change in density. The population was released from hunting pressure in 1972. Over the following 10 years population density doubled and, since the early 1980s, has fluctuated around ecological carrying capacity. The cessation of culling led to long-term transient spatial and demographic effects that have persisted for 30 years. Different vital rates responded to the increase in density at different rates, causing long-term changes to the demographic and spatial structure of the population. These changes altered the impact of different age- and sex-specific vital rates on annual changes in population size. These changes are still ongoing, 30 years after cessation of the cull, suggesting that a change in density may generate transient dynamics that persist for several generations.