在季节性资源变化下,对象性草原类动物的饮食转换和物种间竞争
Huiqin Dong1, Bin Feng1,2, Shuai Yang1
1Key Laboratory of Southwest China Wildlife Resources Conservation China West Normal University Nanchong China.
Ecology and evolution
|February 2, 2026
概括
尽管有大量的料重叠,但基安和西藏羊通过不同的饮食共存. 西藏猎显示出更大的饮食灵活性和季节性变化,表明高原生态系统的生态适应能力很强.
科学领域:
- 生态生态学 生态生态学
- 动物学 动物学
- 保护生物学 保护生物学
背景情况:
- 了解物种竞争和共存对于野生动物保护至关重要.
- 相似物种在资源分割和跨物种相互作用方面面临挑战.
研究的目的:
- 研究 (Equus kiang) 和藏 (Procapra picticaudata) 的饮食习惯和资源分区策略.
- 分析这两种高原类动物之间的潜在竞争和共存机制.
主要方法:
- 用DNA宏条形编码来分析和藏的季节性饮食.
- 在温暖和寒冷的季节中评估了饮食成分,利基范围和重叠.
主要成果:
- 基安主要消费西珀科和多角科,而西藏从季节性地从多角科/科转向科.
- 两种物种都表现出季节性饮食变化,藏在温暖的季节表现出更大的灵活性和更广泛的利基.
- 仍然存在很高的饮食重叠 (0.89温暖,0.87寒冷),但不同的料使用和饮食调整促进了共存.
结论:
- 和藏通过不同的料偏好和食可塑性来缓解竞争.
- 西藏象表现出卓越的生态适应性,有助于它们的共存.
- 该研究提供了对高原类动物的热带利基动态和保护策略的见解.
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