Phylogenetic diversity of two geographically overlapping lichens: isolation by distance, environment, or fragmentation?

Abstract

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Two taxa of the genus Sticta (Peltigerales, Ascomycota), S. andina and S. scabrosa subsp. scabrosa, new to Bolivia confirmed by molecular data

“…3). The nucITS rDNA obtained from specimen 22002 represented the same haplotype that was found in Ecuador (Moncada et al 2021c). In the case of S. scabrosa subsp.…”

“…The H6 haplotype was distinct from remaining haplotypes, differing from H4 and H7 by only one position. The H4 haplotype was present in three Bolivian specimens and seems to be the most common S. scabrosa haplotype, also observed in 47 specimens from the Galapagos Islands (25), Colombia (11), Puerto Rico (7), Mexico (2), Costa Rica (1) and the Dominican Republic (1) (McDonald et al 2003;Widhelm et al 2018;Mercado-Díaz et al 2020;Moncada et al 2021c), and in Bolivia (3) (Fig. 4).…”

Population structure in Neotropical plants: Integrating pollination biology, topography and climatic niches

“…Given recent criticism on the use of multiple matrix regressions (inflation of degrees of freedom, weak correlations may receive significant p ‐values (see discussion on this topic in Moncada et al, 2021), we additionally implemented Generalized Dissimilarity Modelling (GDM). GDM is a multivariate procedure allowing for modelling a single response variable as a function of any number of explanatory variables (Manly, 1986) and allows for nonlinear relationships among the response and explanatory variables using I‐spline functions (Ferrier et al, 2007).…”

New species of Sticta (lichenised Ascomycota, lobarioid Peltigeraceae) from Bolivia suggest a high level of endemism in the Central Andes

“…Modern approaches have also contributed to the discovery or revised definition of endemic taxa in different regions; for example, S. aongstroemii Dal Forno, B. Moncada & Lücking, endemic to south-eastern Brazil, S. borinquensis Merc.-Díaz & Lücking, endemic to Puerto Rico and S. damicornis (Sw.) Ach., a Caribbean endemic ( Dal Forno et al 2018 ; Moncada et al 2018 ; Mercado-Díaz et al 2020 ). Consequently, the number of formally described Sticta species is less than half the global estimate suggested by Moncada et al (2013b , 2021a , b , c ) and many new species may still remain unrecognised, especially in tropical ecosystems in South America and elsewhere, including Bolivia.…”

“…Integrative taxonomy, based on molecular data and morphological and anatomical information, have substantially refined taxon concepts in this genus, revealing taxa with similar morphology and anatomy, so-called ‘morphodemes’, to represent multiple species (e.g. Moncada 2012 ; Moncada et al 2013a , b , 2020 , 2021a , b , c ; Widhelm et al 2018 ; Mercado-Díaz et al 2020 ). For example, several previously unrecognised species have recently been described in the S. weigelii (Ach.)…”