Frogs reveal the global importance and interplay of colour-based protective and thermoregulatory functions

DEFINITION OF VARIABLE NAMES IN DATA FOR:

Frogs reveal the global importance and interplay of colour-based protective and thermoregulatory functions

Ricarda Laumeier, Martin Brändle, Mark-Oliver Rödel, Stefan Brunzel, Roland Brandl, Stefan Pinkert

Legend:

ID = Identifier from MGRS (Military grid reference system 100 km × 100 km)

mean_RGB = Coverage weighted mean RGB of colour lightness values of co-occurring species (grid cells)

RGB_P_comp = Phylogenetically predicted component of the mean_RGB of co-occurring species (grid cells)

RGB_S_comp = Deviation of mean_RGB from phylogenetically predicted component of co-occurring species (grid cells)

Longitude = Longitude of grid cell centroids (EPSG:4326, longlat)

Latitude = Latitude of grid cell centroids (EPSG:4326, longlat)

Sp_rich = Number of species per grid with colour lightness data

SES_CLD = Colour lightness diversity: Standardized effect sizes of mean pairwise distances of co-occurring species (grid cells) minus a null model of 1,000 alternative species sets with the same number of species randomly drawn from the species pool.

数据集变量定义：
《蛙类揭示基于色彩的保护与体温调节功能的全球重要性及其相互作用》相关数据
作者：Ricarda Laumeier, Martin Brändle, Mark-Oliver Rödel, Stefan Brunzel, Roland Brandl, Stefan Pinkert

变量说明：
ID = 军事网格参考系统（MGRS, Military Grid Reference System）100 km × 100 km 格网标识符
mean_RGB = 格网内共生物种色彩明度值的覆盖加权平均RGB值
RGB_P_comp = 格网内共生物种mean_RGB的系统发育预测分量
RGB_S_comp = 格网内共生物种mean_RGB与其系统发育预测分量的偏差值
Longitude = 格网质心的经度（EPSG:4326，longlat坐标系）
Latitude = 格网质心的纬度（EPSG:4326，longlat坐标系）
Sp_rich = 拥有色彩明度数据的格网内物种数量
SES_CLD = 色彩明度多样性：格网内共生物种平均两两距离的标准效应量，减去从物种池中随机抽取相同数量物种构建的1000组替代物种集所生成的零模型。