哈比的猎物在大西洋森林的最后一个繁殖避难所
Mylena Kaizer1,2,3, Brener Fabres1,2,4, Francisca Helena Aguiar-Silva1,2,5
1Projeto Harpia - Mata Atlântica (Harpy Eagle Project - Atlantic Forest), Universidade Federal do Espírito Santo - UFES, Alto Universitário, Guararema, Alegre, Espírito Santo, 29500-000, Brazil.
Scientific reports
|October 25, 2023
概括
巴西的哈比 (Harpia harpyja) 的饮食.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 动物学 动物学
背景情况:
- 哈比 (Harpia harpyja) 在新热带森林面临灭绝的风险.
- 大西洋森林的森林砍伐使息地碎片化,留下很少的筑巢区.
- 巴西的中央大西洋森林生态走廊 (CAFEC) 拥有该地区唯一已知的.
研究的目的:
- 分析哈比的饮食成分,频率,丰富性和CAFEC中的生态属性.
- 为了评估鱼的饮食中猎物物种的保护状况.
- 在大西洋森林中为哈皮及其猎物制定保护策略.
主要方法:
- 在2017年至2021年间,分析了152个猎物遗骸和285张来自7个活跃巢的摄像机陷照片.
- 捕食物种根据生态属性和保护状况进行分类.
- 至少16种哺乳动物物种和鸟类遗骸的鉴定.
主要成果:
- 哈比的饮食主要包括中型树木,叶类,果类和白天哺乳动物 (96.7%).
- 五种捕食物种受到全球威胁,六种在全国范围内,七种在区域范围内.
- 主要的猎物包括受威胁的Sapajus robustus和非受威胁的Bradypus variegatus.
结论:
- 鸟种群可能会受到猎物种群下降的影响,除了息地丧失和狩猎.
- 了解饮食对于有效保护大西洋森林中的鸟至关重要.
- 保护工作必须考虑鸟及其危的猎物物种的相互联系.
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