Pollinator divergence and pollination isolation between hybrids with different floral color and morphology in two sympatric Penstemon species
Study site Research was conducted at the La Malinche National Park (LMNP), Tlaxcala, Mexico (19°15.205′ N, 098°02.080′ W; elevation 3,400–3,900 m; Fig. 4A). The LMNP is located in a temperate montane forest with an old-growth fir forest (Abies religiosa) frequently mixed with Pinus hartwegii above 3,500 m, and hosts a diversity of plants that rely on hummingbirds for […] More
