Selectivity2023.csv

Dataset of field experiments on hummingbirds' selectivity and hummingbirds morphology used in Guevara et al., 2023 <strong>Hummingbird community structure and nectar resources modulate the response of interspecific competition to forest conversion</strong> (submitted to Oecologia). <br> Selectivity approximates the competitive ability of hummingbirds to access optimal nectar resources (see methods Guevara et al., 2023). <br> Metadata of <strong>Selectivity2023 file</strong> <strong>site</strong>: name of the reserve or farm were the experiment was done <strong>habitat</strong>: type of habitat <strong>forest conversion</strong>: dummy variable indicating whether forest conversion have occurred (0 = forest, 1 = converted) <strong>hummingbird:</strong> hummingbird species <strong>activity</strong>: measure of hummingbird species' activity at experimental feeders (number of visits per species divided over the total number of visits of all hummingbirds) <strong>trial</strong>: trial number <strong>day: </strong>date of the experiment <strong>day2</strong>: day number used in analyses <strong>hour:</strong> hour during the day at which the observation was done <strong>time10:</strong> time in seconds spent feeding at the 10% percent feeder <strong>time30</strong>: time in seconds spent feeding at the 30% percent feeder <strong>timeT</strong>: total time spent at both feeders <strong>selectivity</strong>: proportion of time spent at the optimal resource in relation to the total <strong>resources.all: </strong>number of open flowers around 100m nearby the experimental trials <strong>morph.distance: </strong>morphological distance among competing humminbgbirds (see methods Guevara et al., 2023). <strong>weighted.distance</strong>: morphological distance weighted by activity (see methods Guevara et al., 2023). <br> <br> <br> <br>

本数据集为Guevara等人2023年投稿于《Oecologia》期刊的论文《蜂鸟群落结构与蜜源资源调节种间竞争对林分转化的响应》中所使用的蜂鸟选择性与蜂鸟形态学野外实验数据集。
选择性近似表征蜂鸟获取最优蜜源资源的竞争能力（详见Guevara等人2023年的研究方法部分）。
《Selectivity2023》数据集文件的元数据说明如下：
<strong>site（样地）</strong>：实验开展所在的保护区或农场名称
<strong>habitat（生境类型）</strong>：生境类型
<strong>forest conversion（林分转化状态）</strong>：表征林分是否发生转化的虚拟变量（0=原生林，1=已转化林分）
<strong>hummingbird（蜂鸟物种）</strong>：蜂鸟物种名称
<strong>activity（活动占比）</strong>：实验喂食器处蜂鸟物种的活动量指标，计算方式为某一物种的造访次数除以所有蜂鸟的总造访次数
<strong>trial（试验批次）</strong>：试验编号
<strong>day（实验日期）</strong>：实验开展的具体日期
<strong>day2（分析用日序）</strong>：用于统计分析的日序编号
<strong>hour（观测时刻）</strong>：观测当日的具体小时数
<strong>time10（10%浓度喂食器取食时长）</strong>：在10%浓度喂食器处的取食时长，单位为秒
<strong>time30（30%浓度喂食器取食时长）</strong>：在30%浓度喂食器处的取食时长，单位为秒
<strong>timeT（总取食时长）</strong>：在两个喂食器处的总取食时长
<strong>selectivity（选择性指数）</strong>：蜂鸟在最优蜜源处的取食时长占总取食时长的比例
<strong>resources.all（周边蜜源丰度）</strong>：试验点周边100米范围内的开放花朵总数
<strong>morph.distance（种间形态距离）</strong>：竞争蜂鸟类群间的形态学差异距离（详见Guevara等人2023年的研究方法部分）
<strong>weighted.distance（活动加权形态距离）</strong>：以蜂鸟活动占比加权的形态学差异距离（详见Guevara等人2023年的研究方法部分）