狐在智利南部不同的人类干扰的地区散播种子的有效性
Onaylis Triay-Limonta1,2, Rocío Paleo-López1,2, Camila J Stuardo1
1Laboratorio de Genética de la Conservación, Departamento de Ciencias Biológicas y Biodiversidad, Universidad de Los Lagos, Osorno, Los Lagos Región, Chile.
PeerJ
|October 27, 2025
概括
狐是智利南部有效的种子分散者,有助于森林再生. 它们的种子分散效率 (SDE) 对本地和异国植物的种子分散效率因景观干扰和植物物种而异.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 林业林业 林业 林业 林业
背景情况:
- 果哺乳动物对于森林通过种子分散再生至关重要.
- 种子散布的有效性受到景观干扰和植物物种起源 (本地或异国情调) 的影响.
研究的目的:
- 为了评估狐 (Lycalopex spp.) 的种子分散效率 (SDE). 对于本地和异国情调的肉质果实植物.
- 评估景观干扰梯度如何影响智利南部温带森林中的狐SDE.
主要方法:
- 在10个地点收集了199个狐便样本,干扰程度各不相同.
- 通过分析种子数量 (频率,数量) 和质量 (活力,发芽) 来量化种子分散.
- 鉴定了三种本地 (Aristotelia chilensis,Gaultheria mucronata,Ugni molinae) 和三种异国物种 (Prunus spp.,Malus sylvestris,Rubus ulmifolius) 的种子. 这种种子的种子可以在当地种植.
主要成果:
- 131个便样本含有23012种种子;在不太受干扰的地区,本地种子更常见.
- 种子活力很高,不受景观的影响,但发芽率在不太受干扰的地区更高.
- 在受干扰的地区,Gaultheria mucronata未能发芽,而Ugni molinae在受干扰的地区显示出更高的SDE.
结论:
- 狐是本地和异国植物的有效分散者,效率因景观和物种而异.
- 一般的果食者在促进本地再生和潜在地传播异国物种方面发挥着双重作用.
- 碎片森林的保护和恢复工作必须考虑这些复杂的生态动态.
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