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Lichen community composition differences among host oak genotypes (Quercus crassifolia, Q. × dysophilla, and Q. crassipes) in two hybrid zones using nonmetric multidimensional scaling (NMDS). Each point is a two-dimensional (axis 1 and axis 2) representation of the lichen species composition (10 points per host oak genotype). Distances between points reflect a dissimilarity matrix created using the Bray-Curtis dissimilarity coefficient (Faith et al., 1987 [52]). Points that are close together have lichen communities that are more similar in composition compared to points that are far apart. Data of Canalejas hybrid zone (Stress values: 0.149. Final instability, 0.0001) and Tlaxco hybrid zone (stress values of 0.128 and final instability of 0.0001) were used in this analysis.
Source publication
Lichens are organisms whose dynamics take place on terrestrial substrates such as rock, dead wood, living plants, and soil. Living trees are used for lichens as structural support to access light. However, little is known about how the genetic traits of a host tree influence which lichen species grow on it and, consequently, the community structure...
Contexts in source publication
Context 1
... general, we found significant differences in lichen composition among three host oak taxa in the Canalejas HZ (ANOSIM R = 0.9943, p < 0.0001, Figure 1) and in the Tlaxco HZ (ANOSIM R = 0.9902, p < 0.0001), showing that the communities on Quercus crassifolia, Q. × dysophilla, and Q. crassipes are significantly different from each other (Figure 1 The SIMPER analysis identified that the ten most important lichen species in terms of cover, that contributed to the dissimilarity between host oak taxa in both HZs, were Punctelia perreticulata, Flavopunctelia praesignis, Parmotrema reticulatum, Heterodermia granulifera, Flavoparmelia caperata, Parmotrema eurysacum, Flavopunctelia flaventior, Punctelia hypoleucites, and Parmotrema hypoleucium (Tables 2 and 3). Table 2. Summary of SIMPER results for Canalejas hybrid zone: average cover of discriminating species in each host oak taxa, their contribution (%) to the dissimilarity between groups, and the cumulative total (%) of contributions (90% cut-off). ...
Context 2
... general, we found significant differences in lichen composition among three host oak taxa in the Canalejas HZ (ANOSIM R = 0.9943, p < 0.0001, Figure 1) and in the Tlaxco HZ (ANOSIM R = 0.9902, p < 0.0001), showing that the communities on Quercus crassifolia, Q. × dysophilla, and Q. crassipes are significantly different from each other (Figure 1 The SIMPER analysis identified that the ten most important lichen species in terms of cover, that contributed to the dissimilarity between host oak taxa in both HZs, were Punctelia perreticulata, Flavopunctelia praesignis, Parmotrema reticulatum, Heterodermia granulifera, Flavoparmelia caperata, Parmotrema eurysacum, Flavopunctelia flaventior, Punctelia hypoleucites, and Parmotrema hypoleucium (Tables 2 and 3). Table 2. Summary of SIMPER results for Canalejas hybrid zone: average cover of discriminating species in each host oak taxa, their contribution (%) to the dissimilarity between groups, and the cumulative total (%) of contributions (90% cut-off). ...
