当前位置: X-MOL 学术Pest Manag. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Modelling the effect of moose Alces alces population density and regional forest structure on the amount of damage in forest seedling stands.
Pest Management Science ( IF 4.1 ) Pub Date : 2020-09-10 , DOI: 10.1002/ps.6081
Ari Nikula 1 , Juho Matala 2 , Ville Hallikainen 1 , Jyrki Pusenius 2 , Antti Ihalainen 3 , Tuomas Kukko 4 , Kari T Korhonen 2
Affiliation  

Moose (Alces alces L.) populations and moose damage in forests are debated in Nordic countries with dense moose populations. Moose populations and food resources vary greatly, both spatially and temporally, and reliable data covering both variables simultaneously at the same scale have seldom been available. We modelled the effect of moose population density and forest resources on the area of moose damage at regional scale, referring to moose management areas (MMA). Forest data and moose damage data originated from the Finnish National Forest Inventory, and the moose population data came from a Bayesian moose model. For modelling, average values of moose population, damage and forest variables were calculated for the periods 2004–2008 and 2009–2013 for each MMA. The MMAs were further classified into one of four larger geographical zones. The area of moose damage was used as a dependent variable, and the proportions of different types of forests and moose population densities per land area or area of seedling stands as explanatory variables. The relationships were modelled with a linear mixed‐effects model with an exponential spatial correlation structure.

中文翻译:

模拟驼鹿Alces alces种群密度和区域森林结构对森林苗木损害程度的影响。

驼鹿(驼鹿驼鹿L.)驼鹿种群密集的北欧国家对森林种群和驼鹿的危害进行了辩论。驼鹿种群和粮食资源在空间和时间上都有很大的差异,而且很少有在相同规模上同时涵盖两个变量的可靠数据。我们参考了驼鹿管理区(MMA),在区域尺度上模拟了驼鹿种群密度和森林资源对驼鹿损害面积的影响。森林数据和驼鹿破坏数据来自芬兰国家森林清单,而驼鹿种群数据来自贝叶斯驼鹿模型。为了进行建模,针对每个MMA计算了2004-2008年和2009-2013年期间的驼鹿种群,破坏和森林变量的平均值。MMA被进一步分为四个较大的地理区域之一。驼鹿的破坏面积用作因变量,不同类型森林的比例和每土地面积或幼苗面积的驼鹿种群密度作为解释变量。使用具有指数空间相关结构的线性混合效应模型对关系进行建模。
更新日期:2020-09-10
down
wechat
bug