Comparison of vole-grazed and ungrazed Eriophorum vaginatum tussock biomass at the 2007 Anaktuvuk River fire scar in 2019

This file contains biomass measurements from vole-grazed and ungrazed Eriophorum vaginatum tussocks taken from the 2007 Anaktuvuk River Fire scar in 2019. Rodent-grazed and ungrazed tussocks were harvested to assess the impact voles have on biomass. Eighteen grazed tussocks and seven ungrazed tussocks were harvested and taken back to the lab. Ungrazed tussocks were subsampled to make seperation faster. Eight additional ungrzed tussocks were measured in the field and biomass estimates were made using allometry equations based on diameter. The goals of the project were to examine the impact of post-fire changes in plant community composition and structure on habitat suitability and rodent herbivore activity in response to a large, severe, and unprecedented fire in northern Alaska moist acidic tundra.

本数据集包含2019年采自2007年阿纳克图沃克河火灾迹地（Anaktuvuk River Fire scar）的、被田鼠（vole）取食与未被取食的细叶羊胡子草（Eriophorum vaginatum）草丘（tussock）的生物量（biomass）测量数据。研究人员采集啮齿类取食与未被取食的草丘，以评估田鼠对植物生物量的影响。本次共采集18个被取食草丘与7个未被取食草丘并带回实验室；为加快后续分离处理效率，研究人员对未被取食的草丘进行了子采样。另有8个未被取食的草丘在野外完成测量，并基于直径构建的异速生长方程（allometry equations）估算其生物量。本研究的目标为：针对阿拉斯加北部湿润酸性苔原（moist acidic tundra）发生的一场大规模、重度且史无前例的火灾，探究火灾后植物群落组成与结构的变化对栖息地适宜性以及啮齿类植食动物活动的影响。