Macro-nutritional adaptive strategies of moose (Alces alces) related to population density

Yingjie Ma, Heng Bao, Roberta Bencini, David Raubenheimer, Hongliang Dou, Hui Liu, Sirui Wang, Guangshun Jiang

Research output: Contribution to journalArticlepeer-review

5 Citations (Web of Science)

Abstract

The distribution area of moose in China has been shrinking back toward the north and northeast because of climate change and human disturbance, and the population number has been declining. Between 2011 and 2015, we studied moose at six sites in the northeast of China during the snowy seasons. We collected fecal samples and plant samples that were used to estimate population densities for moose, as well as their macro-nutrient selection. Out of a total of 257 fecal samples collected at six sites, we identified a total of 120 individual moose (57 females and 63 males). The population density (moose/km2 ± SE) was highest at Hanma with 0.305 ± 0.064 moose/km2 and lowest at Meitian with only 0.028 ± 0.013 moose/km2. Forage availability was different among sites, with the lowest availability at Mohe (58.17 number/20 m2) and highest was Zhanhe (250.44 number/20 m2). Moose at Zhanhe, Hanma, and Nanwenghe had a balanced diet with higher N:C (1:7), while at Meitian, Shuanghe and Mohe the N:C was 1:8. Our results indicate that the southern areas had low forage quality and quantity and this may be the reason for the distribution of the population of moose shrinking northward.

Original languageEnglish
Article number73
JournalAnimals
Volume10
Issue number1
DOIs
Publication statusPublished - Jan 2020

Fingerprint

Dive into the research topics of 'Macro-nutritional adaptive strategies of moose (Alces alces) related to population density'. Together they form a unique fingerprint.

Cite this