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The impact of wild boars on the temporal resource utilisation of silver pheasants in South China
Wildlife Research ( IF 1.9 ) Pub Date : 2023-12-19 , DOI: 10.1071/wr23043
Wei Liu , Xinhang Song , Ruge Wang , Lingying Shuai , Shuping Xiao , Yanzhen Bu

Context

Increased populations of wild boar (Sus scrofa) in many ecosystems have raised concern regarding the impacts of this species on ecosystems and biodiversity. The relationship between other wildlife and wild boars is not yet fully understood, due to a lack of studies on whether and how other wildlife avoid wild boar interference.

Aims

This study aimed to investigate the impact of wild boars on the temporal resource utilisation of silver pheasants (Lophura nycthemera).

Methods

Eighteen infrared camera stations were deployed during the survey period of May 2020 to April 2022. We utilised avoidance–attraction ratios for evaluating the temporal interaction between silver pheasants and wild boars. We also used a kernel density for measuring their daily activity patterns and interspecific overlap. We simultaneously analysed the impact of human activities on silver pheasants as the reference basis for evaluating the degree of interference by wild boars.

Key results

The total survey effort was 1620 camera days, resulting in a total of 3451 independent detections. The silver pheasants showcased avoidance of both wild boars and human activities (avoidance–attraction ratios were both significantly greater than 1; P < 0.05). The highest degree of temporal overlap was observed between silver pheasants and human activities (Δ = 0.711), followed by wild boars (Δ = 0.615). They both depicted a significant difference in temporal ecological niche differentiation (P < 0.05).

Conclusions

Our results indicated that wild boars had a significant impact on the temporal resource utilisation of silver pheasants. The presence of wild boars significantly prolonged the recurrent reappearance time of silver pheasants in the same location. To avoid potential interference from wild boars, silver pheasants maximised activity frequencies during low activity periods of wild boars.

Implications

This study provides useful information for understanding the relationship between wild boars and other wildlife that inhabited the same areas. Future research will need to investigate both individual and combined impacts of wild boars and human activities on other wildlife.



中文翻译:

野猪对华南白鹇资源利用的影响

语境

许多生态系统中野猪(Sus scrofa)数量的增加引起了人们对该物种对生态系统和生物多样性影响的担忧。由于缺乏关于其他野生动物是否以及如何避免野猪干扰的研究,其他野生动物与野猪之间的关系尚未完全了解。

目标

本研究旨在探讨野猪对白鹇(Lophura nycthemera)时间资源利用的影响。

方法

在2020年5月至2022年4月的调查期间,部署了18个红外摄像机站。我们利用回避-吸引比来评估白鹇和野猪之间的时间相互作用。我们还使用内核密度来测量它们的日常活动模式和种间重叠。我们同时分析了人类活动对白鹇的影响,作为评估野猪干扰程度的参考依据。

主要成果

总调查工作为 1620 个摄像日,总共产生 3451 次独立检测。白鹇表现出对野猪和人类活动的回避(回避-吸引比率均显着大于 1;P  < 0.05)。雉鸡和人类活动之间的时间重叠程度最高(Δ = 0.711),其次是野猪(Δ = 0.615)。他们都描述了时间生态位分化的显着差异(P  <0.05)。

结论

我们的研究结果表明,野猪对白鹇的时间资源利用有显着影响。野猪的存在显着延长了白鹇在同一地点的反复出现时间。为了避免野猪的潜在干扰,白鹇在野猪活动较少的时期最大限度地提高活动频率。

影响

这项研究为了解野猪和居住在同一地区的其他野生动物之间的关系提供了有用的信息。未来的研究需要调查野猪和人类活动对其他野生动物的个体和综合影响。

更新日期:2023-12-21
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