Potential reduction of Hartweg´s Pine (Pinus hartwegii Lindl.) geographic distribution
Fig 4
Cumulative frequencies of the bioclimatic variables associated with the niche breadth of P. hartwegii. Records within the intervals of each bioclimatic variables: a) mean annual temperature (Bio1); b) isothermality (Bio3); c) mean annual temperature range (Bio7); d) mean driest quarter temperature (Bio9); e) mean warmest quarter temperature (Bio10); f) mean coldest quarter temperature (Bio11); and g) coldest quarter precipitation (Bio19).