Foliicolous Lichens of Chocó, Colombia, and their Substrate Abundances

Nowak, Renata; Winkler, S.

doi:10.1017/s0024282975000047

Cited by 12 publications

(9 citation statements)

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“…Foliicolous lichen communities seem to be poorly influenced by the phorophyte species, as also suggested by the complete life cycles, including reproductive stages, observed on plastic cover slips during in situ controlled experiments (Sanders 2002(Sanders , 2005. Nevertheless, slight differentiation has been observed in some cases, which has been assigned to leaf characteristics, such as surface structure and longevity (Nowak and Winkler 1975;Pinokiyo et al 2006;Lu¨cking 2008), while chemical influences have never been invoked. A predominance of some foliicolous species on fern fronds, with respect to dicotyledonous leaves, has also been reported (Nowak and Winkler 1975).…”

Section: Do Plants Influence Foliicolous Lichen Communities?mentioning

confidence: 97%

“…More than 800 species from various lineages of lichen forming fungi grow on the surface of living pteridophyte fronds (e.g., Nowak and Winkler 1975;Farkas 1987;Weber 1993;Gradstein et al 1996) and phanerogam leaves (Lu¨cking 2008). They are largely confined to and characterize tropical rain forests, but also subordinately occur in extratropical regions (Lu¨cking 2008).…”

Section: Do Plants Influence Foliicolous Lichen Communities?mentioning

confidence: 99%

“…Nevertheless, slight differentiation has been observed in some cases, which has been assigned to leaf characteristics, such as surface structure and longevity (Nowak and Winkler 1975;Pinokiyo et al 2006;Lu¨cking 2008), while chemical influences have never been invoked. A predominance of some foliicolous species on fern fronds, with respect to dicotyledonous leaves, has also been reported (Nowak and Winkler 1975). Hairs and glands have been suggested to retard epiphyll colonization, while recent experiments have shown that drip tips can favor lichen colonization by influencing water drainage (Lu¨cking 2008).…”

Section: Do Plants Influence Foliicolous Lichen Communities?mentioning

confidence: 99%

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Lichen-plant interactions

Favero‐Longo

Piervittori

2010

Journal of Plant Interactions

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Controversial data on the pathways and effects of lichen growth on and near bryophytes and vascular plants are reviewed. In most cases, plants which are used as growth substrates positively influence lichen mineral nutrition and are poorly affected by lichen overgrowth, but several reports of negative relationships, including lichen parasitism and allelopathic interferences, prevent generalizations. The allelopathy of terricolous lichens against neighboring plants has been suggested by in vitro investigations, and a multidirectional phytotoxic mode of action has been shown for lichen secondary metabolites. Recent researches on field settings, instead, offer little support of lichen allelopathy, and plant allelopathy against lichens has so far been neglected. A comparison with lichen-rock interactions indicates that a common set of physical and chemical factors can explain the heterogeneous reciprocal effects that exist between lichens and plants, which depend on the species involved, and highlights gaps that need further studies.

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Section: Do Plants Influence Foliicolous Lichen Communities?mentioning

confidence: 97%

Section: Do Plants Influence Foliicolous Lichen Communities?mentioning

confidence: 99%

Section: Do Plants Influence Foliicolous Lichen Communities?mentioning

confidence: 99%

See 1 more Smart Citation

Lichen-plant interactions

Favero‐Longo

Piervittori

2010

Journal of Plant Interactions

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“…Komposch and Hafellner (1999, 2000, 2002, using the crane system at the Orinoco river in Venezuela, confirmed the formation of different lichen communities in different tree-height zones. Otherwise, the only group of crustose tropical microlichens with wellestablished taxonomy are foliicolous lichens, for which microclimate is the most important factor determining community formation, whereas phorophyte preferences are absent or subtle (Nowak and Winkler 1975;Barillas et al 1993;Lücking 1995Lücking , 1998aLücking , b, c, 1999a.…”

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confidence: 99%

Phorophyte specificity and environmental parameters versus stochasticity as determinants for species composition of corticolous crustose lichen communities in the Atlantic rain forest of northeastern Brazil

2007

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A transect of 47 mature trees was studied within an Atlantic rain-forest plot in northeastern Brazil to determinate effects of phorophyte specificity and environmental parameters vs. stochasticity on the structure of corticolous, crustose microlichen communities. A total of 150 lichen species was found, most being rare to extremely rare. Multivariate analysis of sample plots indicated subtle phorophyte preferences among certain lichen species, corresponding to differences in bark pH, degree of bark shedding, density and size of bark lenticels, and presence of milk sap. Individual and multiple regressions revealed correlations between lichen species richness; respectively, area cover and bark pH (negative); density and size of bark lenticels (negative); degree of bark shedding (negative); presence of milk sap (positive); and diffuse site factor (positive). No strongly delimited lichen communities were detected, but cluster analysis revealed three main groups and six subgroups with slightly different lichen species composition, each one with characteristic indicator species but with highly variable overall species composition. Beta diversity was high among samples and lacked spatial structure. However, beta diversity was significantly lower among samples belonging to the same tree species, independent of their spatial arrangement. It was concluded that community formation in tropical rain-forest understory lichens subtly correlates with two main environmental factor complexes-phorophyte bark characteristics and microclimate-but is to a large extent determined by the stochastic effects of species dispersal, especially of rare species.Lichens occur in practically all ecosystems-from hot and cold deserts, to lush tropical rainforests and even in aquatic and marine environments (Henssen and Jahns

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“…This applies in particular to the Colombian Andes, which lie within the belt of territory with a tropical climate. For this reason, this region has been an object of interest to lichenologists since as early as the 19th century (NYLANDER 1863(NYLANDER , 1867LINDAU 1912;NOWAK & WINKLER 1975;GUZMÁN & VARELA 1978;BERKHOUT 1982;SIPMAN & AGUIRRE 1982;DEVRIES & SIPMAN 1984). While carrying out our studies on carotenoids in lichens from various latitudes, we turned our attention to the Andes which contain, as was mentioned above, such varied ecological niches.…”

Section: Introductionmentioning

confidence: 99%

Carotenoids in certain lichens from the Colombian Andes

Czeczuga¹,

Czeczuga-Semeniuk²,

Sipman

2003

Feddes Repertorium

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Reverse‐phase high‐performance liquid chromato‐graphy, column and thin‐layer chromatography re‐vealed the presence of following carotenoids in the thalli of 10 species (14 specimens) of lichens from the Colombian Andes: β‐carotene, β‐cryptoxanthin, zeaxanthin, lutein, calthaxanthin, caloxanthin, 3′‐hydroxyechinenone, canthaxanthin, fritschiellaxanthin, astaxanthin, antheraxanthin, violaxanthin, neoxanthin, mutatoxanthin and capsochrome. The total content of carotenoids ranged from 18.41 μg g−1 (Stereocaulon ramulosum ) to 45.78 μg g−1 (Thamnolia vermicularis, no. 3) dry mass.

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Foliicolous Lichens of Chocó, Colombia, and their Substrate Abundances

Cited by 12 publications

References 1 publication

Lichen-plant interactions

Lichen-plant interactions

Phorophyte specificity and environmental parameters versus stochasticity as determinants for species composition of corticolous crustose lichen communities in the Atlantic rain forest of northeastern Brazil

Carotenoids in certain lichens from the Colombian Andes

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