Cryptogamic epiphytes in primary and recovering upper montane oak forests of Costa Rica – species richness, community composition and ecology

Holz, Ingo; Gradstein, S. Robbert

doi:10.1007/s11258-004-2496-5

Cited by 108 publications

(89 citation statements)

References 32 publications

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“…Second, almost all epiphyte studies in the natural forest have hitherto focused on mature canopy trees; species on young understorey trees have generally been neglected (Krömer et al 2007). Third, descriptions of vertical distribution patterns have generally been observational; very few studies included statistical analysis of the data (Holz et al 2002;Holz and Gradstein 2005).…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%

Vertical distribution of epiphytic bryophytes in an Indonesian rainforest

et al. 2009

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“…A predominância de briófitas em tronco vivo também é relatada por diferentes autores como Aquino et al (2015) e Sousa & Câmara (2015) estudando matas de galeria no Cerrado brasileiro; por Holz et al (2002) e Holz & Gradstein (2005 em florestas montanas na Costa Rica; por Alvarenga & Lisboa (2009), Ilkiu-Borges et al (2009, Moura et al (2013) e Brito & Ilkiu-Borges (2014 em ecossistemas amazônicos; e Costa (1999) em florestas de terras baixas no sudeste do Brasil. Troncos vivos, assim como troncos em decomposição, são substratos favoráveis à colonização de briófitas pois retêm elevada umidade e geralmente estão disponíveis no ambiente, sendo colonizados por diferentes espécies de briófitas, desde a base até o dossel superior (Holz et al 2002, Holz & Gradstein 2005.…”

Section: Discussionunclassified

Briófitas na Estação Ecológica da Universidade Federal de Minas Gerais, Brasil

Peñaloza-Bojacá¹,

Fantecelle²,

Araújo³

et al. 2017

Iheringia Ser Bot

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RESUMO -A Estação Ecológica da Universidade Federal de Minas Gerais é uma importante unidade de conservação urbana com vegetação deMata Semidecídua e Cerrado, sendo área de inúmeros estudos com a fauna e fl ora locais. No entanto, informações sobre briófi tas são completamente ausentes, o que difi culta estudos mais aprofundados sobre estas plantas. O objetivo desse estudo foi registrar as espécies de briófi tas presentes na Estação Ecológica da referida Universidade, apresentar informações sobre sua reprodução e dados complementares sobre o micro-habitat e distribuição geográfi ca das espécies. A partir de 60 amostras de briófi tas coletadas em diferentes substratos foram encontradas nove espécies de hepáticas e 15 de musgos. O musgo Isopterygium byssobolax (Müll. Hal) Paris é novo registro para o estado, propágulos assexuados são descritos pela primeira vez em Donnellia lagenifera (Mitt.) W.R. Buck e a hepática Cylindrocolea planifolia (Steph.) R.M. Schust é novamente registrada para o estado após 160 anos.Palavras-chave: diversidade, Cerrado, fl oresta semidecídua, reprodução ABSTRACT -Bryophytes in the Ecological Station of the Federal University of Minas Gerais, Brazil. The Ecological Station of the FederalUniversity of Minas Gerais is an important urban conservation area with semi-deciduous forest and savanna vegetation where several studies on local fauna and fl ora have been carried out. However, there is no scientifi c information on bryophytes, which hinders detailed studies on these plants. The aim of this study was to record the bryophyte species present in the Ecological Station, and to add information on their reproduction, as well as supplementary data on microhabitats and geographic species distribution. Within 60 bryophyte samples collected in diff erent substrates, nine liverwort species and fi fteen moss species were found. The moss Isopterygium byssobolax (Mull.Hal.) Paris is a new record for the state of Minas Gerais; asexual propagules are described for the fi rst time in the moss Donnellia lagenifera (Mitt.) W. R. Buck; and the liverwort Cylindrocolea planifolia (Steph.) R. M. Schust has again been recorded in the state after 160 years.

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“…Sin embargo, al comparar este trabajo con otros similares, como los de Holz & Gradstein (2005a, 2005b, realizado para bosques primarios de Quercus en Costa Rica, se observa que para Tipacoque existe mayor número de especies de musgos epífitos encontrados en el mismo género de árbol hospedero (48 en Tipacoque/41 en Costa Rica). El caso contrario, sucedió con las hepáticas, con una diferencia de 41 especies para los dos lugares (26/67 respectivamente).…”

Section: Discussionunclassified

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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Cryptogamic epiphytes in primary and recovering upper montane oak forests of Costa Rica – species richness, community composition and ecology

Cited by 108 publications

References 32 publications

Vertical distribution of epiphytic bryophytes in an Indonesian rainforest

Vertical distribution of epiphytic bryophytes in an Indonesian rainforest

Briófitas na Estação Ecológica da Universidade Federal de Minas Gerais, Brasil

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

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