气候变化对大兴安岭北部马鹿分布的影响及廊道构建研究
DOI:
作者:
作者单位:

1.牡丹江师范学院生命科学与技术学院;2.东北林业大学野生动物与自然保护地学院;3.黑龙江省野生动物研究所

作者简介:

通讯作者:

中图分类号:

基金项目:

黑龙江省重点研发计划项目(GA23A902);黑龙江省省属科研院所科研业务费项目(CZKYF2024-1-C006);牡丹江师范学院科研项目(MNUGP202302)


Effects of climate changes on the distribution of wapitis (Cervus canadensis) and their corridor construction in the northern Daxing'an Mountains, China
Author:
Affiliation:

1.College of Life Seience and Technology,Mudanjing Normal University;2.College of Wildlife and Nature Reserves,Northeast forestry University,Harbin;3.Wildlife Research Institute of Heilongjiang Province

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 文章评论
    摘要:

    摘要:全球气候变暖对生物多样性产生深刻影响,野生动物通过迁移扩散选择适宜生存繁衍的栖息地来应对气候变化。马鹿(Cervus canadensis)作为我国北方森林生态系统中具有代表性的有蹄类动物之一,在维持生态系统的平衡与稳定发挥着重要作用,而大兴安岭北部为马鹿东北亚种(Cervus canadensis xanthopygus)的重要分布地之一。为了探究马鹿如何应对气候变化,2023-2024年在大兴安岭北部(西林吉林业局、图强林业局、阿木尔林业局、塔河林业局、十八站林业局),通过红外相机监测和样线调查收集马鹿的数据,采用ArcGIS结合运用最大熵(MaxEnt)模型,对当前和未来(2041-2060年、2061-2080年)4种共享社会经济路径(SSP126、SSP245、SSP370、SSP585)模式下马鹿栖息地的适宜性进行评价,分析质心迁移趋势,以便探究气候变化与该地区马鹿栖息地分布的潜在关系,并基于电路理论构建生态廊道。结果表明:(1) 影响马鹿分布的主要环境因素包括:最湿月降水量(bio13)、最湿季度降水量(bio16)、小道、河流、坡向。(2) 在当前气候条件下,马鹿的栖息地破碎化严重,潜在适宜栖息地面积为4177.38 km2。其中,高适宜栖息地面积948.72 km2,低适宜栖息地面积3228.66 km2。(3) 在未来不同气候情景下,马鹿的高适宜栖息地和低适宜栖息地的面积均呈现不同程度的扩增,其中对低适宜栖息地的影响更为显著,到2061-2080年中等发展路径(SSP245)情景下,其适宜栖息地的面积扩增高达803.7km2。(4) 马鹿适宜栖息地的质心呈现向高海拔地区迁移的趋势,由于研究区域的地势南高北低,质心向西南和东南方向迁移,地理位置上,迁移位置均位于阿木尔林业局。(5) 生态源地的面积呈扩增趋势,廊道位置随生态源地的新增和迁移方向发生变化,其中廊道(C15)作为连接塔河和十八站林业局生态源地的关键廊道。本研究获得的不同气候背景下大兴安岭北部马鹿栖息地适宜性及廊道构建的成果,可为今后开展马鹿栖息地修复和构建最适栖息地景观提供科学依据,为促进马鹿种群迁移扩散提供实践指导和基础资料。

    Abstract:

    Abstract: Global warming profoundly impacted biodiversity, and wildlife responded to climate change by migrating and dispersing to select habitats suitable for survival and reproduction. As representative ungulate species in China's boreal forest ecosystems, the wapitis (Cervus canadensis) played a critical ecological role in maintaining forest structure and ecosystem stability. The northern Daxing'an Mountains served as an important distribution area for the Northeast Asian subspecies of wapitis (Cervus canadensis xanthopygus). To investigate climate adaptation strategies of wapitis, we conducted an integrated field study during 2023—2024 across five forestry bureaus in the northern Daxing'an Mountains (Xilinji, Tuqiang, Amur, Tahe, and Shibazhan). We combined infrared camera trapping and transect surveys to collect occurrence data, which was used to model habitat suitability using MaxEnt and ArcGIS under current conditions and future climate scenarios (2041—2060 and 2061—2080) across four Shared Socioeconomic Pathways(SSP126、SSP245、SSP370、SSP585). Additionally, we analyzed centroid migration trends and constructed ecological corridors using circuit theory. The results indicated that: (1) The main environmental factors affecting the distribution of wapitis included precipitation of the wettest month (bio13), precipitation of the wettest quarter (bio16), trails, rivers, and slope aspect. (2) Under current climatic condition, the habitat of wapitis was severely fragmented, with a potential suitable habitat area of 4177.38 km2. Among this, the highly suitable habitat area was 948.72 km2, and the low suitable habitat area was 3228.66 km2. (3) Under future climate scenarios, both the highly suitable and low suitable habitat areas of wapitis showed varying degrees of expansion, with a more significant impact on the low suitable habitat. By the period 2061–2080 under the medium development pathway (SSP245) scenario, the area of suitable habitat expanded by up to 803.7 km2. (4) Habitat centroids shifted toward higher elevations in southwestern or southeastern directions, all within Amur Forestry Bureau boundaries, reflecting the topography descended from the south to the north. (5) The area of ecological sources showed an expanding trend, and the locations of corridors changed with the addition of new ecological sources and the direction of migration. Among these, corridor (C15) served as a key corridor connecting the ecological sources of Tahe and Shibazhan Forestry Bureaus. The findings of this study on habitat suitability and corridor construction for wapitis in the northern Daxing'an Mountains under varying climate conditions provided a scientific basis for future habitat restoration and optimal habitat landscapes development, while offering practical guidance and fundamental data to facilitate wapiti population migration and dispersal.

    参考文献
    相似文献
    引证文献
引用本文

田新民,殷 莉,马雨含,刘炳莲,明鑫悦,张子栋,汲旭阳,孟訾靖,王鑫雪,周绍春.气候变化对大兴安岭北部马鹿分布的影响及廊道构建研究.生态学报,,(). http://dx. doi. org/[doi]

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数: