Influence of Substrate Type and Forest Age on Bryophyte Species Distribution in Tasmanian Mixed Forest

Turner, Perpetua A. M.; Pharo, Emma J.

doi:10.1639/0007-2745(2005)108[67:iostaf]2.0.co;2

Cited by 35 publications

(41 citation statements)

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“…Regarding bryophyte richness (i.e. number of species) and cover, most studies that have explored epiphytic bryophyte assemblages after harvesting have shown that both parameters increase with forest age (Boudreault et al, 2000;Kantvilas and Jarman, 2004;Lesica et al, 1991;Turner and Pharo, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Most surveys have hence been limited to lowest tree zones, usually sampling only 2 m above ground level (e.g. Boudreault et al, 2000;González-Mancebo et al, 2004;Kantvilas and Jarman, 2004;McGee and Kimmerer, 2002;Turner and Pharo, 2005). Thus, little information is available on the ecology of canopy-dwelling biota in most forest ecosystems (Köhler et al, 2007;Nadkarni et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Short-term effects of clear-cutting on the biomass and richness of epiphytic bryophytes in managed subtropical cloud forests

et al. 2009

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Abstract• Managed laurel forests in the Canary Islands have undergone clear-cutting with rotation periods of less than 30 y. Forest owners have recently requested a drastic reduction in the cutting interval. The effects of this new harvesting cycle on organisms like epiphytic bryophytes are not well known.• This study investigates how time since last clear-cut, host species and characteristics of tree zones influence the biomass, cover and richness of epiphyte bryophytes in managed laurel forests in La Palma, Canary Islands. Four forest ages (8, 15, 25 and 60 y) and three host tree species (Erica arborea, Laurus novocanariensis and Myrica faya) were studied.• Biomass, cover and richness of bryophytes increased through the chronosequence, both at the level of each plot and overall for L. novocanariensis. Most of the biomass (53%) and richness (81%) was concentrated in one of the tree species (L. novocanariensis), in plots for which 60 y had elapsed since the last clear-cutting. Trunks supported greater bryophyte biomass and richness than canopies, even in the oldest plots.• Our results suggest that the current rotation periods used to manage laurel forests are insufficiently long to allow for complete reestablishment of epiphytic bryophyte assemblages. Mots-clés :îles Canaries / canopée / intervalles de coupe / biomasse des bryophytes épiphytes / forêts de lauriers Résumé -Effets à court terme de la coupe à blanc sur la biomasse et la richesse des bryophytes épiphytes dans des forêts gérées subtropicales.• Les forêts de lauriers gérées dans les îles Canaries ont subi la coupe à blanc avec des périodes de rotation de moins de 30 ans. Les propriétaires des forêts ont récemment demandé une réduction drastique de l'intervalle de coupe. Les effets de ce nouveau cycle de récolte sur des organismes épiphytes comme les bryophytes ne sont pas bien connus.• Cette étude examine la façon dont le temps depuis la dernière coupe, les espèces hôtes et les caractéristiques des espèces d'arbres influencent la biomasse, la couverture et la richesse des bryophytes épiphytes dans les forêts gérées de lauriers à La Palma, îles Canaries. Quatre forêts âgées de 8, 15, 25 et 60 ans et trois espèces d'arbres hôtes (Erica arborea, Laurus novocanariensis et Myrica faya) ont été étudiées.• La biomasse, la couverture et la richesse des bryophytes ont augmenté à travers la chronoséquence, au niveau de chaque parcelle et de l'ensemble de L. novocanariensis. La plus grande partie de la biomasse (53 %) et de la richesse (81 %) est concentrée sur l'une des espèces d'arbres (L. novocanariensis), dans les parcelles pour lesquelles 60 ans se sont écoulés depuis la dernière coupe à blanc. Les troncs supportent une plus grande biomasse de bryophytes et une plus grande richesse que les canopées, même dans les parcelles les plus anciennes.• Nos résultats suggèrent que les périodes courantes de rotation utilisées pour gérer les forêts de lauriers ne sont pas suffisamment longues pour permettre le rétablissement complet des assemblages des bryophytes épiph...

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Short-term effects of clear-cutting on the biomass and richness of epiphytic bryophytes in managed subtropical cloud forests

et al. 2009

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“…El bosque de Santa Rosa se caracteriza por presentar árboles con doseles altos (8-21 m), los DAP que oscilan entre 0.05 y 3 m, características que, unidas a la alta humedad, producto de las precipitaciones (2 400 mm/ anuales), garantizan que se puedan crear microambientes propicios para el desarrollo de las epífitas no vasculares (Turner & Pharo, 2005). La presencia de rocas de gran tamaño, con alturas hasta de 10 m, junto con el humus producto de la descomposición, ofrecen sustratos óptimos para el desarrollo de musgos (Richards, 1984).…”

Section: Distribución Por Formas De Vidaunclassified

Diversidad, distribución y hábitat de musgos en un bosque andino en Bolívar - Santander, Colombia

Novoa

2017

RBT

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Richness and distribution of mosses in a sub-Andean forest in Bolívar-Santander, Colombia. The Colombian bryoflora is considered one of the most diverse and widely distributed in the Andean mountains and the paramo areas, due to the variety of environments; it works like an erosion buffer zone and a humidity regulation that supports the environment and habitat conservation. This work was developed in a 100 ha Andean forest area, using nine linear transects of 100 x 4 m in the municipality of Bolívar (Santander, Colombia), and non-vascular plants were sampled in all substrates (soil, rocks, outcrops, organic matter and water tube-drainage). We recorded a total of 129 samples that belong to 72 species, 48 genera and 21 families, which represent the 7.78 % of the species in the country, and the 11.16 % of the current records in the department of Santander. Families with the highest number of species were Pilotricaceae (15), Neckeraceae and Fissidentaceae with seven species each one, and Brachytheciaceae, Leucobryaceae and Thuidiaceae with five species each one. The richness genera are Lepidopilum (7), Fissidens (7) and Syrrhopodon (4); a total of 34 genera with just one species. Most of the moss species were found on the bark trees (20), followed by rocks (17) and soil (9) substrates. Concerning to life forms, the most abundant were, cushions (24 especies), turfs (23), dendroid (8), creeping (4) and pendulous (3). Using a DCA analysis we observed a greater richness in transects located inside the forest. Moreover, we found 36 new records for Santander and one for the country (Homaliodendron piniforme (Brid.) Enroth). These results showed that the Colombian sub-Andean forest may be the habitat of a considerable richness of mosses species, and that is necessary to expand inventories of bryophytes in some Colombian regions. Rev. Biol. Trop. 65 (4): 1397-1406. Epub 2017 December 01.

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“…Considerable attention has been devoted to the role of CWD as a substrate for tree seedlings (e.g., Christy and Mack 1984, Harmon and Franklin 1989, Simard et al 1998, Takahashi et al 2000, Narukawa and Yamamoto 2003, Zielonka 2006) and forest floor bryophytes (e.g., Crites and Dale 1998;Muir 1998a, 1998b;Kruys and Jonsson 1999;Turner and Pharo 2005). For example, in the western Cascades of Oregon, Christy and Mack (1984) found that 98% of Tsuga heterophylla seedlings regenerated on decayed logs although logs typically cover only 4-11% of the forest floor (Spies et al 1988).…”

Section: Introductionmentioning

confidence: 99%

“…Preferential establishment of tree seedlings on logs has been attributed to the greater moisture-holding capacity of decayed wood and to an escape from competition with understory vegetation on the forest floor (e.g., Franklin 1986, Simard et al 1998). Similarly, mosses and liverworts that are sensitive to desiccation or are easily overgrown by vascular plants display an affinity for CWD (e.g., Muir 1998a, Turner andPharo 2005), and forests with a greater abundance of decayed logs often support richer bryophyte communities (Andersson and Hytteborn 1991, Berg et al 1994, Rambo and Muir 1998b.…”

Section: Introductionmentioning

confidence: 99%

Substrate effects on distribution, biomass allocation, and morphology of forest understory plants

Six

Halpern

2008

Botany

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This is to certify that I have examined this copy of a master's thesis by Laura J. Six and have found that it is complete and satisfactory in all respects, and that any and all revisions required by the final examining committee have been made. substrate affinities, I also tested whether rooting substrate affected allocation to aboveand below-ground structures, morphological traits, or overall performance (total biomass and plant nitrogen), consistent with differences in moisture availability between substrates.I tested whether understory species showed significant associations with CWD or the forest floor using 1200, 1 x 1 m quadrats in which I compared cover of CWD and forest floor (as measures of substrate availability) and the density of shoots of each species emerging from each substrate. To examine relationships between rooting substrate and plant performance, I excavated three common understory species: Tiarella trifoliata (preference for forest floor), Vaccinium parvifolium (preference for CWD), andMaianthemum dilatatum (no preference for either substrate). For each species, the below-ground structures (rhizomes and roots) and aerial shoots (stems and leaves) of 30 pairs of plants (one rooted in CWD, one in the forest floor) were measured, then dried to determine mass. Replicate samples of each substrate were collected every 3 wk (June through mid-September) to test for differences in volumetric moisture.Most species (83%) displayed a preference for substrate; of these, 75% preferred the forest floor. Species preferences for CWD or forest floor did not appear to be related to plant stature or any other morphological or life-history trait. Most species may be associated with the forest floor because it is a more predictable and stable substrate.Alternatively, preference for the forest floor may relate to competition with mosses: moss cover was more than twice as high on CWD as on the forest floor (87 vs. 38%). Patterns of biomass allocation in Maianthemum, Tiarella, and Vaccinium were consistent with differences in moisture availability between substrates: plants rooted in the forest floor (which was consistently drier over the growing season) allocated greater biomass to below-ground structures. However, effects of substrate on above-ground traits (e.g., leaf density, leaf area, and shoot height) were non-significant, and effects on below-ground traits were largely inconsistent with differences in moisture availability between substrates.Depth and lateral spread of rhizome systems may be determined by the physical structure of decaying logs rather than by resource availability. In addition, light may be so limiting in these forests that it masks the potential for species to respond to substraterelated differences in resource availability. Finally, it is possible that associations with substrates are driven not by differences in performance of established plants, but by differences in dispersal, germination, and/or early survival.

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Influence of Substrate Type and Forest Age on Bryophyte Species Distribution in Tasmanian Mixed Forest

Cited by 35 publications

References 33 publications

Short-term effects of clear-cutting on the biomass and richness of epiphytic bryophytes in managed subtropical cloud forests

Short-term effects of clear-cutting on the biomass and richness of epiphytic bryophytes in managed subtropical cloud forests

Diversidad, distribución y hábitat de musgos en un bosque andino en Bolívar - Santander, Colombia

Substrate effects on distribution, biomass allocation, and morphology of forest understory plants

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