Winter browsing by moose (Alces alces) in a forested mountainous landscape of West-Central Sweden

Browsing ecology involving ungulates and their food resource is complex as consumption may reflect responses to various factors, such as quantity and quality of browse species. This study investigated winter browsing by moose (Alces alces) in a mountainous landscape of west-central Sweden, characterized by Norway spruce (Picea abies) production forests with high inclusion of deciduous species. Field data on tree species abundances as well as fresh and previous browsing were collected along moose tracks and control transects, to answer our questions regarding browse selection in relation to availability. The data were analyzed using mainly modelling (Generalized linear mixed models) approaches. The results revealed greater amounts of available food trees (<5 m) in young compared to older forests and along moose tracks compared to control transects. Downy birch (Betula pubescens) was the most abundant independent of forest age class and transect type (i.e. tracks vs. controls). Quantit..., , , # Winter browsing by moose (Alces alces) in a forested mountainous landscape of West-Central Sweden

Dataset DOI: [10.5061/dryad.5mkkwh7dz](10.5061/dryad.5mkkwh7dz)

## Description of the data and file structure

Data on browsing patterns of moose on snow-covered ground collected in west-central Sweden. 

### Files and variables

#### File: Dryad\_ModelingSASindata.xlsx

**Description:** 

Explanations of data sheets in Dryad_ModelingSASindata.xls. Each sheet is based on data from Dryad_Data – 1.csv, but formatted for analyses of different scales in SAS.

| **Name of sheet** | **Selection of transects** | **Scale of data** | **Selection of trees** | **Description** |
| :---------------------------- | :------------------------- | :---------------- | :--------------------- | :------------------------------------------------------------------------------...,

有蹄类动物及其取食资源的取食生态学研究颇为复杂，因为动物的取食消耗往往反映了其对多种因素的响应，例如取食物种的数量与质量。本研究针对瑞典中西部山地景观中的驼鹿（Alces alces）冬季取食行为展开调查，该区域以挪威云杉（Picea abies）生产性商品林为主，且混有大量落叶树种。研究人员沿驼鹿足迹带与对照样线收集了林木物种丰度、新鲜取食痕迹与既往取食痕迹的野外数据，以解答关于取食选择与可获得性相关性的研究问题。本研究主要采用建模（广义线性混合模型，Generalized linear mixed models）方法对数据进行分析。结果显示，幼龄林内以及驼鹿足迹带中的可食用林木（高度<5米）储量均高于老龄林与对照样线。无论林分年龄组与样线类型（即足迹带与对照组）如何，毛桦（Betula pubescens）均为优势物种。定量……，，，# 瑞典中西部山地森林景观中的驼鹿（Alces alces）冬季取食行为

数据集DOI：[10.5061/dryad.5mkkwh7dz](10.5061/dryad.5mkkwh7dz)

## 数据与文件结构说明

本数据集包含瑞典中西部积雪地面上的驼鹿取食模式相关数据。

### 文件与变量

#### 文件：Dryad_ModelingSASindata.xlsx

**文件说明：**

本文件对Dryad_ModelingSASindata.xlsx中的数据表进行了说明。所有数据表均基于Dryad_Data – 1.csv的数据构建，仅针对SAS软件中不同尺度的分析需求进行了格式调整。

| **工作表名称** | **样线选取方式** | **数据尺度** | **林木选取规则** | **说明** |
| :---------------------------- | :------------------------- | :---------------- | :--------------------- | :------------------------------------------------------------------------------...,