Quantifying annual spatial consistency in chick-rearing seabirds to inform important site identification
Quantifying annual spatial consistency in chick-rearing seabirds to inform important site identification
复制标题
量化育雏海鸟的年度空间一致性，为重要地点识别提供信息
DOI：
10.1016/j.biocon.2023.109994
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发表时间：
2023
影响因子：
5.9
通讯作者：
Beal Martin...Katsufumi Sato...Akinori Takahashi... et al.
中科院分区：
文献类型：
--
作者：
Wakabayashi Taku;Kamada Kenji;Sekizawa Keita;Sato Shunsuke;Morikawa Takeshi;Jung Jieun;Saito Susumu;Beal Martin...Katsufumi Sato...Akinori Takahashi... et al.
动物追踪提供了对许多物种的空间利用模式的见解，从而为基于区域的保护规划提供了信息。从跟踪数据估计空间分布时，一个关键的考虑因素是被跟踪动物的样本是否代表更广泛的种群。然而，对动物进行多年跟踪，以捕捉它们在不同环境条件下的分布变化，可能也很重要。利用23种海鸟的gps跟踪数据，我们评估了多年采样对确定育雏期重要保护地点的重要性，这是海鸟最受空间限制的时期。结果表明，大多数树种不同年份的空间分布高度重叠。多年抽样通常比一年抽样捕获的参考分布（基于人口的所有数据）的比例要高得多。然而，我们估计，与三年收集的等大小样本相比，一年的数据平均只会少遗漏5%的总体完整分布（最小值：- 0.3%，最大值：17.7%,n= 23）。我们的研究结果表明，从跟踪数据中确定重要地点的一个关键考虑因素是，在采样期间，是否有足够的个体被跟踪，以提供对种群分布的代表性估计，而不是必须在多年内进行跟踪。通过提供一个前所未有的多物种年度空间一致性的视角，这项工作对跟踪数据在海鸟保护中的应用具有重要意义。
Animal tracking has afforded insights into patterns of space use in numerous species and thereby informed area-based conservation planning. A crucial consideration when estimating spatial distributions from tracking data is whether the sample of tracked animals is representative of the wider population. However, it may also be important to track animals in multiple years to capture changes in distribution in response to varying environmental conditions. Using GPS-tracking data from 23 seabird species, we assessed the importance of multi-year sampling for identifying important sites for conservation during the chick-rearing period, when seabirds are most spatially constrained. We found a high degree of spatial overlap among distributions from different years in most species. Multi-year sampling often captured a significantly higher portion of reference distributions (based on all data for a population) than sampling in a single year. However, we estimated that data from a single year would on average miss only 5 % less of the full distribution of a population compared to equal-sized samples collected across three years (min: −0.3 %, max: 17.7 %,n= 23). Our results suggest a key consideration for identifying important sites from tracking data is whether enough individuals were tracked to provide a representative estimate of the population distribution during the sampling period, rather than that tracking necessarily take place in multiple years. By providing an unprecedented multi-species perspective on annual spatial consistency, this work has relevance for the application of tracking data to informing the conservation of seabirds.