Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3390/ani11051313 |
| Summer Diet of Horses (Equus ferus caballus Linn.), Guanacos (Lama guanicoe Muller), and European Brown Hares (Lepus europaeus Pallas) in the High Andean Range of the Coquimbo Region, Chile | |
| Castellaro, Giorgio; Orellana, Carla Loreto; Escanilla, Juan Pablo | |
| 通讯作者 | Castellaro, G (corresponding author), Univ Chile, Fac Agr Sci, Santiago 8820808, Chile. |
| 来源期刊 | ANIMALS
 |
| ISSN | 2076-2615 |
| 出版年 | 2021 |
| 卷号 | 11期号:5 |
| 英文摘要 | Simple Summary For the proper management of natural grasslands, it is important to know the interactions between the different herbivores, both wild and domestic, that use them. In this research, we studied the botanical composition of the diet of horses, guanacos, and European brown hares, in summer grasslands of the high mountain range of the Region of Coquimbo, Chile. We were able to determine the main species that these herbivores consume, as well as the characteristics of their diets in terms of diversity and quantify the potential trophic competition between them. The main grassland's species play a maintenance and subsistence role for the three species of herbivores studied, for which they establish selective strategies on certain species of plants, in order to improve the quality of their diets. For an adequate management of natural grasslands, the knowledge and understanding of the dietary habits of herbivores and their trophic interactions are fundamental. During two summer seasons, in a mountain range of a sector of the Coquimbo Region, Chile, the botanical composition, diversity, and similarity of the diets of horses, European brown hares, and guanacos were studied, as was the selectivity of the main grassland plant species, using feces microhistology. The contribution of hydromorphic grasses was similar in the diets of guanacos (35.90 +/- 7.27%) and horses (32.25 +/- 4.50%), differing from that found in hares (16.32 +/- 5.32%). Dryland grassland grasses contributed similarly to the diets of horses (13.21 +/- 3.22%), guanacos (22.53 +/- 5.21%) and hares (18.35 +/- 3.81%), as well as graminoids, which averaged 47.79 +/- 6.66%, 35.63 +/- 10.76% and 38.94 +/- 7.88%, in diets of horses, guanacos, and hares, respectively, without significant differences. The contribution of herbaceous dicotyledons was only important in hares (23.76 +/- 3.76%), while that of shrubs was low (<3%) and similar among the three herbivores. Dietary diversity was similar among the three herbivore species (73-79%), with a higher degree of dietary overlap between horses and guanacos (55.7%), which was higher than that obtained between hares and guanacos (50%) and between horses and hares (48%), for which there would be a potential trophic competition between them. The most abundant species of dryland and wet grasslands generally fulfill a functional role of subsistence and a nutritional role of maintenance; however, for the three herbivores studied, a different selective behavior was evidenced, according to their physiological differences, with the selection process little affected by the relative abundance of these species in the grasslands. Due to the above, herbivores resort to the selection of certain species that, despite being not very abundant in grasslands, play an important nutritional and functional role, improving the quality of their diets. |
| 英文关键词 | dietary overlap equids grassland ecology lagomorphs mountain summer range wild South American camelids |
| 类型 | Article |
| 语种 | 英语 |
| 开放获取类型 | Green Published, gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000653381200001 |
| WOS关键词 | TIERRA-DEL-FUEGO ; TROPHIC INTERACTIONS ; NATIONAL-PARK ; WILD RABBIT ; RED DESERT ; LIVESTOCK ; SELECTION ; CATTLE ; SHEEP ; COMPETITION |
| WOS类目 | Agriculture, Dairy & Animal Science ; Veterinary Sciences |
| WOS研究方向 | Agriculture ; Veterinary Sciences |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/349460 |
| 作者单位 | [Castellaro, Giorgio; Orellana, Carla Loreto; Escanilla, Juan Pablo] Univ Chile, Fac Agr Sci, Santiago 8820808, Chile |
| 推荐引用方式 GB/T 7714 | Castellaro, Giorgio,Orellana, Carla Loreto,Escanilla, Juan Pablo. Summer Diet of Horses (Equus ferus caballus Linn.), Guanacos (Lama guanicoe Muller), and European Brown Hares (Lepus europaeus Pallas) in the High Andean Range of the Coquimbo Region, Chile[J],2021,11(5). |
| APA | Castellaro, Giorgio,Orellana, Carla Loreto,&Escanilla, Juan Pablo.(2021).Summer Diet of Horses (Equus ferus caballus Linn.), Guanacos (Lama guanicoe Muller), and European Brown Hares (Lepus europaeus Pallas) in the High Andean Range of the Coquimbo Region, Chile.ANIMALS,11(5). |
| MLA | Castellaro, Giorgio,et al."Summer Diet of Horses (Equus ferus caballus Linn.), Guanacos (Lama guanicoe Muller), and European Brown Hares (Lepus europaeus Pallas) in the High Andean Range of the Coquimbo Region, Chile".ANIMALS 11.5(2021). |
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