Springbok (Antidorcas marsupialis) is an understudied species with a dearth of scientific work having been conducted, especially so for the Nama-Karoo vegetation type, in southern Namibia. We studied variations in herd composition and time budget of springbok by direct observations during a dry and wet season in southern Namibia and found significant differences (p < 0.001) in mean herd size between the dry and wet seasons. Herd size decreased from early morning to late afternoon during the dry season (p = 0.037) but not the wet season (p = 0.362). Springbok spent more time browsing during the dry season compared to the wet season (p < 0.001) when they spent more time grazing (p < 0.001). However, there was no significant difference in the time springbok spent walking between the two seasons (p = 0.181). Other energy-intensive activities such as grooming and running increased during the wet season (p < 0.001) due to favourable environmental conditions, breeding season and possibly an increase in parasite load.

中文翻译：

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纳米比亚南部跳羚（Antidorcas marsupialis）畜群规模和时间预算的季节性变化

跳羚 (Antidorcas marsupialis) 是一种尚未得到充分研究的物种，缺乏科学工作，特别是对于 Nama-Karoo 植被类型，位于纳米比亚南部。我们通过直接观察纳米比亚南部干湿季期间的跳羚群体组成和时间预算的变化，发现了显着差异（p < 0.001 ）旱季和雨季之间的平均牛群规模。旱季期间，从清晨到下午晚些时候，牛群规模有所减少 (p = 0.037)，但雨季则不然 (p = 0.362)。与雨季相比，跳羚在旱季花更多时间浏览食物 (p < 0.001)，雨季它们花更多时间吃草 (< a i=11>p < 0.001)。然而，两个季节跳羚行走的时间没有显着差异(p = 0.181)。由于有利的环境条件、繁殖季节以及可能的气候变化，雨季期间梳毛和跑步等其他能源密集型活动有所增加 (p < 0.001)寄生虫负载增加。