Diversity Patterns and Biomass of Epiphytic Bryophytes and Lichens Along an Altitudinal Gradient in the Northern Andes

Wolf, Jan H. D.

doi:10.2307/2399938

Cited by 256 publications

(222 citation statements)

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“…The recorded number of 146 epiphytic bryophyte species on eight understorey and eight canopy trees (estimated sampling completeness: 88% for canopy trees, 82% for understorey trees) is among the highest ever reported for tropical forests (e.g., Cornelissen and Ter Steege 1989;Montfoort and Ek 1990;Wolf 1993b;Acebey et al 2003). It is exceeded by a Costa Rican montane cloud forest (Gradstein et al 2001b), where growth of epiphytic bryophytes is enhanced by the frequent occurrence of fog.…”

Section: Species Richnessmentioning

confidence: 99%

Vertical distribution of epiphytic bryophytes in an Indonesian rainforest

et al. 2009

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We studied species richness, composition and vertical distribution of epiphytic bryophytes in submontane rainforest of Central Sulawesi. Bryophytes were sampled on eight canopy trees and on eight trees in the forest understorey. Microclimate was measured at trunk bases and at crown bases. The total recorded number of 146 epiphytic bryophyte species is among the highest ever reported for tropical forests and underlines the importance of the Malesian region as a global biodiversity hotspot. Species composition differed significantly between understorey trees and canopy tree trunks on the one hand, and the forest canopy on the other. Fourty-five percent of the bryophyte species were restricted to canopy tree crowns, 12% to the understorey. Dendroid and fan-like species mainly occurred in the forest understorey whereas tufts were most species rich in the tree crowns. The findings reflect the different microclimatic regimes and substrates found in the understorey and in the forest canopy. The results indicate that assessments of the bryophyte diversity of tropical forests are inadequate when understorey trees and tree crowns are excluded.

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Section: Species Richnessmentioning

confidence: 99%

Vertical distribution of epiphytic bryophytes in an Indonesian rainforest

et al. 2009

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“…All in all, this indicates the need to evaluate the community composition and functional diversity as surrogates of ecosystem regeneration after disturbances, as the species assemblages provides better information to evaluate the differences with regard to mature communities than species abundance or number of individuals. In fact, many characteristics species of young or disturbed forests remains vestigial in old-growth forests, depending on small natural gaps, according with their different habitat requirements [67][68][69].…”

Section: Discussionmentioning

confidence: 99%

Post-Fire Salvage Logging Imposes a New Disturbance that Retards Succession: The Case of Bryophyte Communities in a Macaronesian Laurel Forest

Hernández-Hernández

Castro

Arco-Aguilar

et al. 2017

Forests

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Post-fire salvage logging (SL) is a common management action that involves the harvesting of burnt trees. As a consequence, a large amount of biological legacies in the form of logs and other coarse woody debris are removed from the post-fire habitat, creating a more simplified landscape. Therefore, SL could act as an additional disturbance over that produced by fire. In this study, we seek to determine the effect of SL on the regeneration of the bryophyte community of a laurel forest from the Canary Islands (Spain). We hypothesized that SL will act as an additional disturbance and, consequently, salvaged areas will have a higher difference in community composition with respect to a reference ecosystem (RE). Mosses and liverworts were sampled 22 months after the salvage operations in salvaged plots, non-salvaged, and in an RE represented by areas of the original forest. Species richness did not differ between salvage and non-salvaged treatments. However, multivariate analysis and species-indicator analysis showed that non-salvaged plots had a composition closer to that of the RE, with a higher proportion of closed-canopy, perennial, and long-lived species, as well as some epiphytes. By contrast, salvaged plots were dominated by early-successional terrestrial species and species preferring open habitats. We conclude that post-fire SL represents an additional disturbance that further delays succession, a result that is consistent with previous studies using other taxonomic groups. SL should therefore be avoided or, if implemented, the possibility of leaving part of the post-fire biological legacies in situ should be considered.

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“…Esta preferencia se debe a que los lugares de sombra (~85% de cobertura), son estratos donde las especies de briófitos necesitan mucho más tiempo para establecerse y desarrollar las adaptaciones para estos microambientes (Holz & Gradstein, 2005). Esto indica que algunas de las especies que se encuentran en la base de los árboles, también se pueden encontrar en otros estratos, probablemente producto de la migración de propágulos o esporas (Wolf, 1993).…”

Section: Discussionunclassified

“…Se estimó la cobertura de cada una de las especies con ayuda de una plantilla de acetato cuadriculada de 400cm 2 (iwatzuki, 1960). Para el caso de las ramas externas, la plantilla se modificó a un área de 100cm 2 (Wolf, 1993).…”

Section: Selección De Forófitosunclassified

Estratificación vertical de briófitos epífitos encontrados en Quercus humboldtii (Fagaceae) de Boyacá, Colombia

Novoa

Puentes

2014

RBT

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Vertical stratification of epiphytic bryophytes found on Quercus humboldtii (Fagaceae) from Boyacá, Colombia. Oak forest represents an ecologically important plant formation in Colombia, partly due to the large amount of epiphyte flora that harbors, especially non-vascular plants which have been poorly studied in Colombia. One of the biggest oak forests in the country is the one found in the Parque Natural Municipal "Robledales de Tipacoque" (PNMRT), in Boyacá, municipality of Tipacoque. The epiphyte bryoflora was evaluated in Q. humboldtii, using canopy climbing techniques and dividing the trees (25 individuals sampled) each into five layers (base, trunk, inner canopy, middle and outer canopy). A total of 365 samples were collected: 29% liveworts and 71% mosses. Hepatics represented 10 families, 16 genera and 26 species; mosses 11 families, 26 genera and 49 species. Considering the tree layers, the most diverse one was the base with 51 species, followed by the trunk with 43; in the canopy, the inner canopy was found the most diverse with 28 species, and was followed by the middle canopy with 18, and the outer canopy with 15. A species similarity index shows that the trunk and the middle canopy were the most closely related (0.42) in terms of species composition. The results showed that non-vascular plants were mostly found in lower layers (base and trunk), where the diversity was greater, richer (species number), and this might be caused by the microclimatic conditions in these places, such as higher humidity, lower light intensity and shade. Thus, some species are considered shade epiphytes (ombrophiles) because they are unique to these areas, like Bazzania gracilis and Taxilejeunea pterigonia, among others. Likewise, Jungermannia sp. is considered a sun epiphyte (heliophilous) because it is found only in the outer canopy. We concluded that Q. humboldtii could be considered as a potential host for the conservation of non-vascular epiphytes in Colombian forests. Rev. Biol. Trop. 62 (2): 719-727. Epub 2014 June 01.

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Diversity Patterns and Biomass of Epiphytic Bryophytes and Lichens Along an Altitudinal Gradient in the Northern Andes

Cited by 256 publications

References 0 publications

Vertical distribution of epiphytic bryophytes in an Indonesian rainforest

Vertical distribution of epiphytic bryophytes in an Indonesian rainforest

Post-Fire Salvage Logging Imposes a New Disturbance that Retards Succession: The Case of Bryophyte Communities in a Macaronesian Laurel Forest

Estratificación vertical de briófitos epífitos encontrados en Quercus humboldtii (Fagaceae) de Boyacá, Colombia

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