Epiphytic lichen synusiae and functional trait groups in boreo-nemoral deciduous forests are influenced by host tree and environmental factors

2019 ◽  
Vol 37 (1) ◽  
pp. e01939 ◽  
Author(s):  
Inga Jüriado ◽  
Jaanus Paal
Keyword(s):  
Environmental Factors ◽  
Functional Trait ◽  
Host Tree ◽  
Deciduous Forests ◽  
Epiphytic Lichen ◽  
Trait Groups

Habitat conditions and host tree properties affect the occurrence, abundance and fertility of the endangered lichenLobaria pulmonariain wooded meadows of Estonia

2012 ◽  
Vol 44 (2) ◽  
pp. 263-275 ◽  
Author(s):  
Inga JÜRIADO ◽  
Leelia KARU ◽  
Jaan LIIRA
Keyword(s):  
Environmental Factors ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Host Tree ◽  
Control Group ◽  
Individual Tree ◽  
Epiphytic Lichen ◽  
Host Trees ◽  
Deciduous Shrubs ◽  
Wooded Meadows

AbstractWe assessed multiple environmental factors that might influence the population vitality of the epiphytic lichenLobaria pulmonariaat the individual tree and habitat levels in partially overgrown wooded meadows in Estonia. A total of 301 trees of four species were sampled at nine study plots, using a stratified factorial scheme, 151 colonized byL. pulmonariaand 150 not colonized byL. pulmonariaforming the control group. We used the Generalized Linear Models (GLZ) to identify a complex of factors which predicts the probability of the lichen occurring on tree trunks and the presence of apothecia on its individuals. We employed the General Linear Mixed Model (GLMM) to study the relationship between cover ofL. pulmonariaand environmental factors. The occurrence probability ofL. pulmonariaon tree trunks increased with increasing light availability and height of deciduous shrubs near the trunk, and decreased with increasing distance to the nearest colonized tree. The host tree species and its trunk properties were also of importance, particularly the facilitating effect of the cover of bryophytes uponL. pulmonaria. The probability of occurrence of apothecia increased with maximum values of bark pH and cover ofL. pulmonariaon the trunk. We conclude that partially overgrown wooded meadows are suitable habitats forL. pulmonaria. However, to maintain the vitality of these populations, a specific management scheme, preventing development of a dense stand, should be applied. Management requirements would include 1) selective cutting of overgrowing coniferous trees (particularly spruce), 2) preservation of adult and younger potential host trees within 10–20 m of colonized trees, 3) preservation of scattered deciduous shrubs in the vicinity of the host trees.

scholarly journals The Role of Recent (1985–2014) Patterns of Land Abandonment and Environmental Factors in the Establishment and Growth of Secondary Forests in the Iberian Peninsula

Land ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 817
Author(s):  
Marina Palmero-Iniesta ◽  
Josep Maria Espelta ◽  
Mario Padial-Iglesias ◽  
Òscar Gonzàlez-Guerrero ◽  
Lluís Pesquer ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Iberian Peninsula ◽  
Forest Cover ◽  
Secondary Forest ◽  
Forest Growth ◽  
Deciduous Forests ◽  
Secondary Forests ◽  
Study Region ◽  
Leaf Habit ◽  
Forest Establishment

Farmland abandonment has been a widespread land-use change in the Iberian Peninsula since the second half of the 20th century, leading to the establishment of secondary forests across the region. In this study, we aimed to address changes in the recent (1985–2014) emergence patterns of these forests and examine how environmental factors affected their growth by considering differences in leaf-habit types. We used a combination of Landsat-derived land-cover maps and aboveground biomass (AGB) maps from the European Space Agency to assess the secondary forest establishment and growth, respectively, in the study region. We also obtained a set of topographic, climatic and landscape variables from diverse GIS layers and used them for determining changes over time in the environmental drivers of forest establishment and AGB using general linear models. The results highlight that secondary forest cover was still increasing in the Iberian Peninsula at a rate above the European average. Yet, they also indicate a directional change in the emergence of secondary forests towards lower and less steep regions with higher water availability (mean rainfall and SPEI) and less forest cover but are subjected to greater drought events. In addition, these environmental factors differentially affect the growth of forests with different leaf-habit types: i.e., needleleaf secondary forests being less favoured by high temperature and precipitation, and broadleaf deciduous forests being most negatively affected by drought. Finally, these spatial patterns of forest emergence and the contrasting responses of forest leaf-habits to environmental factors explained the major development of broadleaf evergreen compared to broadleaf deciduous forests and, especially, needleleaf secondary forests. These results will improve the knowledge of forest dynamics that have occurred in the Iberian Peninsula in recent decades and provide an essential tool for understanding the potential effects of climate warming on secondary forest growth.

Ecoregional, catchment, and reach-scale environmental factors shape functional-trait structure of stream fish assemblages

Hydrobiologia ◽  
2015 ◽  
Vol 753 (1) ◽  
pp. 265-283 ◽  
Author(s):  
Allison A. Pease ◽  
Jason M. Taylor ◽  
Kirk O. Winemiller ◽  
Ryan S. King
Keyword(s):  
Environmental Factors ◽  
Fish Assemblages ◽  
Functional Trait ◽  
Stream Fish ◽  
Trait Structure ◽  
Stream Fish Assemblages

Grapevine (Vitis spp.) dynamics in association with manual tending, physiography, and host tree associations in temperate deciduous forests

2009 ◽  
Vol 257 (8) ◽  
pp. 1839-1846 ◽  
Author(s):  
Robert C. Morrissey ◽  
Martin-Michel Gauthier ◽  
John A. Kershaw ◽  
Douglass F. Jacobs ◽  
John R. Seifert ◽  
...  
Keyword(s):  
Host Tree ◽  
Deciduous Forests ◽  
Temperate Deciduous ◽  
Temperate Deciduous Forests ◽  
Vitis Spp

scholarly journals Palm functional trait responses to local environmental factors in the Colombian Amazon

2021 ◽  
pp. 1-9
Author(s):  
William Trujillo ◽  
Carlos A. Rivera-Rondón ◽  
Jorge Jácome ◽  
Néstor García ◽  
Wolf L. Eiserhardt ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Functional Traits ◽  
Forest Type ◽  
Functional Trait ◽  
Environmental Variable ◽  
Community Effects ◽  
Trait Variance ◽  
Flooded Forests ◽  
Colombian Amazon ◽  
Pearson Correlations

Abstract Functional traits play a key role in driving plant community effects on ecosystem function. We examined nine functional traits in various palm (Arecaceae) species and their relationships with moisture, tree-fall gaps, slope, and forest type at 29 transects (500×5 m) in the northeastern region of the Colombian Amazon. Redundancy analysis of mean trait values of species within a plot weighted by their abundance and Pearson correlations were used to evaluate the relationships between traits and environmental factors. The community trait composition was correlated with local environmental factors, which explained 23% of the trait variance. We detected functional dominance of the tallest palms in soils with high moisture and in floodplain forests (p ≤0.05). Palms with relatively long leaves were dominant in the flooded forests. Acaulescent and small palms were dominant on high slopes, and in terra firme forests, long-petioled palms were dominant in forest gaps. The number of seeds per fruit was not correlated with any environmental variable. Thus, hydrology is one of the main drivers of the functional composition of neotropical palm communities at the local scale, segregating tall palms with competitive and evasive strategies from small understory palms, which are mainly stress tolerant.

scholarly journals Environmental factors related to community-level functional traits in limestone hill forests along an altitudinal gradient: a case study in northern Thailand

2019 ◽  
Vol 71 (1) ◽  
pp. 86-99
Author(s):  
Lamthai Asanok ◽  
Torlarp Kamyo ◽  
Dokrak Marod
Keyword(s):  
Environmental Factors ◽  
Functional Traits ◽  
Altitudinal Gradient ◽  
Functional Trait ◽  
Community Level ◽  
Northern Thailand ◽  
Factors Affecting ◽  
Functional Richness ◽  
Limestone Hill ◽  
Trait Space

Abstract This study investigated the environmental factors affecting functional traits, which have been shown to be important for species assembly in diverse forest stands on limestone hills in northern Thailand. We established 54 plots of 400 m2 in three forest sites (lower, middle, and upper) established along an altitudinal gradient on a limestone hill. The functional traits were assessed and then linked to environmental factors governing forest composition. Results indicated that elevation, rocky outcroppings, and sunlight were important factors affecting functional trait diversity at the study site. Areas with high values of these three factors exhibited increased community-level leaf size, specific leaf area, and leaf thickness, all of which are associated with light-demanding species. However, in areas with low values of these three factors, we observed increased community-level wood density and maximum plant height, which are characteristic of shade-tolerant species. Elevation also positively affected functional dispersion and functional richness values, indicating a wide functional trait space in higher elevation areas, but lower areas exhibited a narrower functional trait space. We suggest that combining a trait-based approach with environmental factors can reveal patterns of species composition in limestone forests.

Late Cretaceous-Cenozoic history of deciduousness and the terminal Cretaceous event

Paleobiology ◽  
1987 ◽  
Vol 13 (2) ◽  
pp. 215-226 ◽  
Author(s):  
Jack A. Wolfe
Keyword(s):  
Environmental Factors ◽  
Southern Hemisphere ◽  
Late Cretaceous ◽  
Middle Latitude ◽  
Deciduous Forests ◽  
Wide Spread ◽  
Low Diversity ◽  
History Of ◽  
Selection For ◽  
Vegetation And Climate

Deciduousness in mesic, broad-leaved plants occurred in disturbed, middle-latitude environments during the Late Cretaceous. Only in polar environments in the Late Cretaceous was the deciduous element dominant, although of low diversity. The terminal Cretaceous event resulted in wide-spread selection for plants of deciduous habit and diversification of deciduous taxa, thus leaving a lasting imprint on Northern Hemisphere vegetation. Various environmental factors have played important roles in subsequent diversification of mesic, broad-leaved deciduous taxa and in origination and decline of broad-leaved deciduous forests. Low diversity and rarity of mesic deciduous plants in the post-Cretaceous of the Southern Hemisphere indicate that the inferred “impact winter” of the terminal Cretaceous event had little effect on Southern Hemisphere vegetation and climate.

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