Litter fall of epiphytic macrolichens in two old Picea abies forests in Sweden

The seasonal and annual variation in the litter fall of epiphytic lichens and tree litter was studied over a period of 2 to 3 years at two forested hills in the eastern part of central Sweden. Litter fall was measured using traps and for one species, Usnea longissima, by collecting specimens present on the ground. Total litter fall amounted to 2.5 and 2.8 tons ha−1 year−1 of which lichens constituted 4.6 and 5.7% at the two sites. Lichen litter fall was highest during the period from late autumn to the beginning of summer. Both the lichens and the tree litter showed significant between-year differences. Usnea longissima had an annual turnover of 7.0 and 10.0% of the standing crop at the two sites. The thallus length distribution of U. longissima was positively skewed. It is concluded that dispersal of thallus fragments by wind evidently plays an important role for many of the filamentous lichens studied. It is suggested that U. longissima disperses over a much shorter distance than Alectoria sarmentosa and Bryoria spp. within a forest stand.

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Post-Fire Colonization of a Mediterranean Forest Stand by Epiphytic Lichens

The Lichenologist ◽

10.1017/s0024282999000493 ◽

1999 ◽

Vol 31 (04) ◽

pp. 389 ◽

Cited By ~ 1

Author(s):

Angels Longán ◽

Ester Gaya ◽

Antonio Gómez-Bolea

Keyword(s):

Forest Stand ◽

Mediterranean Forest ◽

Epiphytic Lichens

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Ecosystem Processes in a Stand of Pinus mugo Turra I. Standing Crop, Dry Matter Production and Litter Fall

Flora ◽

10.1016/s0367-2530(17)31116-7 ◽

1978 ◽

Vol 167 (3-4) ◽

pp. 249-255 ◽

Cited By ~ 3

Author(s):

Gh. Coldea ◽

E. Plamadå

Keyword(s):

Standing Crop ◽

Dry Matter ◽

Ecosystem Processes ◽

Dry Matter Production ◽

Pinus Mugo ◽

Litter Fall ◽

Matter Production

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A plot-based method for rapid estimation of forest canopy chemistry

Canadian Journal of Forest Research ◽

10.1139/x00-187 ◽

2001 ◽

Vol 31 (3) ◽

pp. 549-555 ◽

Cited By ~ 22

Author(s):

Marie-Louise Smith ◽

Mary E Martin

Keyword(s):

Remote Sensing ◽

Rapid Method ◽

Forest Canopy ◽

Forest Stand ◽

Litter Fall ◽

Forest Canopies ◽

Rapid Estimation ◽

Simple Leaf ◽

Leaf Level ◽

Fractional Distribution

In this study we present a rapid method to scale the leaf-level chemistry of forest stands to the whole-canopy level. The method combines simple leaf-level measurements of mass and chemistry with a camera-based technique to estimate the fractional distribution of species' foliage area in a forest canopy. Results using this methodology for the estimation of whole-canopy N concentration (g/100 g) are presented and are shown to be comparable with those derived directly from litter fall collection. The ability to efficiently scale leaf-level traits to whole forest canopies enhances our ability to examine key relationships associated with these traits at various levels from the leaf to the forest stand and, with remote sensing technologies, to larger landscapes.

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Litter fall and standing crop litter of Bambusa vulgaris Schrad. ex J.C. Wendl. stands in secondary rainforest in Ile-Ife, Nigeria

International Journal of Biological and Chemical Sciences ◽

10.4314/ijbcs.v13i4.27 ◽

2019 ◽

Vol 13 (4) ◽

pp. 2224

Author(s):

Anthony Ifechukwude Odiwe ◽

Tolulope Victor Borisade ◽

Idris Olawale Raimi ◽

Abdulfatai Babatunde Rufai

Keyword(s):

Standing Crop ◽

Litter Fall ◽

Bambusa Vulgaris

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The Natural Addition of Nitrogen, Potassium and Calcium to a Pinusbanksiana Lamb. Forest Floor

Canadian Journal of Forest Research ◽

10.1139/x72-068 ◽

1972 ◽

Vol 2 (4) ◽

pp. 448-455 ◽

Cited By ~ 9

Author(s):

N. W. Foster ◽

S. P. Gessel

Keyword(s):

Small Proportion ◽

Forest Floor ◽

Pinus Banksiana ◽

Forest Canopy ◽

Nitrogen Concentration ◽

Early Summer ◽

Major Contributor ◽

Litter Fall ◽

Autumn Period ◽

Tree Litter

Nitrogen (N), potassium (K) and calcium (Ca) in litter-fall, throughfall and stemflow were measured over a 24-week summer-autumn period in a 30-year-old Pinus banksiana Lamb, stand. Litter-fall from the forest canopy was the major contributor of N; whereas throughfall contributed the most K to the forest floor during the study period. Stemflow accounted for a very small proportion of the nutrients received by the forest floor. Additions of K and Ca from through fall were greater than those from litter-fall in July and August, a period of low organic additions to the forest floor. Tree litter-fall increased in the autumn. Nitrogen concentration of this litter-fall decreased from a high of 0.92% in early summer to a low of 0.21% in autumn; whereas Ca concentration increased from a July low of 0.16% to an autumn high of 0.57%.During September–November, overstory and understory vegetation contributed the greatest quantities of N; the overstory gave the most Ca, and the overstory, understory, and throughfall all added large amounts of K to the forest floor.

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Post-Fire Colonization of a Mediterranean Forest Stand by Epiphytic Lichens

The Lichenologist ◽

10.1006/lich.1998.0200 ◽

1999 ◽

Vol 31 (4) ◽

pp. 389-395 ◽

Cited By ~ 8

Author(s):

Angels Longán ◽

Ester Gaya ◽

Antonio Gómez-Bolea

Keyword(s):

Quercus Ilex ◽

Common Species ◽

Forest Stand ◽

Mediterranean Forest ◽

Total Biomass ◽

Epiphytic Lichens ◽

Lichen Diversity ◽

Cistus Albidus ◽

Suitable Substratum ◽

Ne Spain

AbstractThe post-fire colonization of a Quercus ilex forest by epiphytic lichens has been studied in Catalonia (NE Spain), eleven years after a fire. Specific richness and lichen biomass have been studied separately on Quercus ilex, Erica arborea, Rosmarinus officinalis. and Cistus albidus, to reveal possible differences among phorophytes in facilitating lichen establishment. Shrubs play an important role in colonization by common species whereas the stools of Quercus ilex offer a suitable substratum for rarer species. Cistus albidus, with the highest lichen diversity and 98·2% of the total biomass of macrolichens, is the most suitable phorophyte for lichen establishment.

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Does Tree Age Predict the Occurrence and Abundance of Usnea Longissima in Multi-Aged Submontane Picea Abies Stands?

The Lichenologist ◽

10.1006/lich.1999.0239 ◽

1999 ◽

Vol 31 (6) ◽

pp. 613-625 ◽

Cited By ~ 6

Author(s):

Jørund Rolstad ◽

Erlend Rolstad

Keyword(s):

Picea Abies ◽

Important Determinant ◽

Negative Relationship ◽

Forest Stand ◽

Stem Diameter ◽

Tree Age ◽

Epiphytic Lichen ◽

South Central ◽

Spruce Stands ◽

Usnea Longissima

AbstractIn boreal Scandinavia Usnea longissima is a rare epiphytic lichen associated with old spruce (Picea abies) forests. To test whether tree age was an important determinant of the occurrence and abundance of U. longissima at the scale of a forest stand we estimated thallus numbers on 1008 trees within three submontane spruce stands in south-central Norway. The stands were of all ages and multi-layered and had been selectively cut previous to the 1940s. There was no relationship between number of U. longissima thalli and tree age among trees with dbh of ≥ 10 cm. The most consistent pattern was a positive relationship between occurrence and number of thalli and stem diameter. After controlling the covariance of stem diameter, there was a tendency for a negative relationship between number of thalli and tree age. The results suggest that in old-growth resembling stands, with already established U. longissima populations, tree size (here measured as stem Diameter) is a better predictor of thallus number than tree age. This does not contradict the possibility that other environmental characteristics, associated with stands of older age, may be important for the establishment and growth of U. longissima populations.

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Epiphytic lichens of the dark coniferous forest within the outbreak of Ips sexdentatus Boern. in the Maly Abakan site of the Khakassky Nature Reserve

BIO Web of Conferences ◽

10.1051/bioconf/20191600019 ◽

2019 ◽

Vol 16 ◽

pp. 00019

Author(s):

Evgenia Makeeva ◽

Olga Zyryanova

Keyword(s):

Bark Beetle ◽

Nature Reserve ◽

Coniferous Forest ◽

Forest Stand ◽

Epiphytic Lichens ◽

Epiphytic Lichen ◽

Dark Coniferous Forest ◽

State Nature Reserve ◽

Ips Sexdentatus ◽

State Nature

The article demonstrates the results of studies epiphytic lichens species composition from the territory of the Khakassky State Nature Reserve, conducted in the alpine cedar taiga at the location of the Ips sexdentatus outbreak. There were two types of sample plots: damaged plots, characterized by shriveled cedars infected by bark beetle and flawless plots containing forest stand of primarily vigorous trees. All sample plots were found to comprise 46 species of lichens belonging to 24 genera and 13 families. It was observed that plots infected by bark beetle were inhabited by lichens with poor vital activities manifested by their damaged thalli. However, there were no evident changes in the epiphytic lichen communities on floristic and coenotic levels.

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