Carabid beetles (Coleoptera: Carabidae) in coniferous plantations in Hokkaido, Japan: effects of tree species and environmental factors

2014 ◽  
Vol 18 (2) ◽  
pp. 245-253 ◽  
Author(s):  
Jun Kaizuka ◽  
Mitsuhiro Iwasa
Keyword(s):  
Environmental Factors ◽  
Tree Species ◽  
Carabid Beetles ◽  
Coniferous Plantations

scholarly journals Spatial pattern of riparian plants along stream order among mountain rivers in China

2018 ◽  
Vol 9 (2) ◽  
pp. 322-330
Author(s):  
Rong Sun ◽  
Xiaojie Luo ◽  
Xiangyu Meng ◽  
Yan Wang
Keyword(s):  
Species Richness ◽  
Environmental Factors ◽  
Tree Species ◽  
Riparian Vegetation ◽  
Stream Order ◽  
River Continuum ◽  
Riparian Plants ◽  
Tree Species Richness ◽  
Riparian Species ◽  
Significant Difference

Abstract The streams in a watershed form a hierarchical network system. From the perspective of the river continuum, this classification system is the result of gradual increase in traffic. This study analyzed the riparian species richness, diversity and environmental factors along a six-order hierarchical mountain river in the Donghe watershed, China. A total of 34 sampling sites were sampled to study the spatial distribution of riparian plants among different stream orders. The results showed: Environmental factors among stream orders had significant differences. Among stream order, species richness showed remarkable differences. The species richness rose firstly and dropped afterwards except for tree species richness; tree species richness decreased while stream order increased. The same is true for shrub quadrat species richness. Shannon-Wiener diversity, Simpson dominance and Pielou uniformity showed significant difference among stream orders; Shannon-Wiener diversity rose firstly then dropped afterwards. For integrated environmental factors and community characteristics, we found the changes of stream orders had a significant impact on riparian habitats and riparian vegetation. Further analysis showed that riparian vegetation experienced different types and degrees of disturbance in different stream orders. This meant that a hierarchical management strategy should be applied to riparian vegetation management.

OCCURRENCE OF CARABID BEETLES (COLEOPTERA: CARABIDAE) IN A BOREAL FOREST DAMAGED BY FIRE

1982 ◽  
Vol 114 (6) ◽  
pp. 509-514 ◽  
Author(s):  
R. J. Richardson ◽  
N. J. Holliday
Keyword(s):  
Boreal Forest ◽  
Forest Fire ◽  
Tree Species ◽  
Indirect Effects ◽  
Similar Pattern ◽  
Habitat Change ◽  
Carabid Beetles ◽  
Pitfall Traps

AbstractFifteen months after an intense forest fire, the fauna of carabid beetles in burnt and unburnt sites was sampled using pitfall traps to detect the indirect effects of fire on carabids caused by habitat change. Traps were installed in burnt and unburnt sites in which the dominant tree species before the fire was either spruce or aspen. The most commonly caught species was Pterostichus pensylvanicus which was captured more frequently in unburnt sites, but was not affected by dominant tree species; a similar pattern of distribution of captures was found for Carabus taedatus. Harpalus laticeps was captured only in burnt sites. P. lucublandus and Dicaelus sculptilis upioides were most commonly caught in the unburnt aspen site, while Pterostichus adstrictus was most commonly caught in the burnt spruce site.

The influence of a native tree species mix component on bird communities in non‐native coniferous plantations in Ireland

Bird Study ◽  
2010 ◽  
Vol 57 (4) ◽  
pp. 483-494 ◽  
Author(s):  
Oisín F. MCD. Sweeney ◽  
Mark W. Wilson ◽  
Sandra Irwin ◽  
Thomas C. Kelly ◽  
John O’Halloran
Keyword(s):  
Tree Species ◽  
Bird Communities ◽  
Native Tree ◽  
Native Tree Species ◽  
Coniferous Plantations

scholarly journals The influence of environmental factors on species composition and distribution in a community forest in Northern Thailand

2020 ◽  
Author(s):  
Siriluck Thammanu ◽  
Dokrak Marod ◽  
Hee Han ◽  
Narayan Bhusal ◽  
Lamthai Asanok ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Species Composition ◽  
Tree Species ◽  
Biological Diversity ◽  
Sustainable Use ◽  
Forest Resources ◽  
Community Forest ◽  
Northern Thailand ◽  
Tree Species Composition ◽  
Species Composition And Distribution

Abstract Understanding the environmental factors that influence tree species composition is essential for successful management of biodiversity and sustainable use of community forest resources. This study aims to assess tree species composition and distribution in the deciduous Ban Mae Chiang Rai Lum Community Forest in Northern Thailand and to analyze the influence of environmental factors on tree biodiversity in the forest. We conducted a stratified systematic sampling of the forest’s total area of 3925 ha, and twenty-five 0.16 ha survey plots were established in three different stands of the deciduous forests to estimate and characterize the difference in biological diversity among the stands. Canonical correspondence analysis (CCA) was used to investigate the environment factors affecting such differences in biodiversity of the stands. The results showed a high diversity of trees in the forest as 197 species, 144 genera, and 62 plant families were recorded. The CCA ordination identified the environmental factors—the most important of which were elevation, distance to streams, soil moisture, organic matter, and distance to communities—that significantly influenced the diversity and distribution of tree species (p < 0.05) in the community forest. Our findings indicate that the implementation of drought reduction measures such as building check dams, fire protection, and monitoring community forest-product usage would be recommended to further biodiversity conservation and the sustainable use of community forest resources.

Tree species distribution in Andean forests: influence of regional and local factors

2011 ◽  
Vol 28 (1) ◽  
pp. 83-95 ◽  
Author(s):  
Cecilia Blundo ◽  
Lucio R. Malizia ◽  
John G. Blake ◽  
Alejandro D. Brown
Keyword(s):  
Environmental Factors ◽  
Species Composition ◽  
Species Distribution ◽  
Tree Species ◽  
Altitudinal Gradient ◽  
Local Community ◽  
Climatic Factors ◽  
Regional Scale ◽  
Tree Species Composition ◽  
Local Factors

Abstract:We identified and quantified regional and local environmental factors and spatial variation associated with tree-species composition across a 2000-m altitudinal gradient of Andean forest in north-western Argentina. A network of 47 1-ha plots was established along the altitudinal gradient within an area of about 25 000 km2; all trees ≥ 10 cm dbh were identified and measured. Constrained ordinations and variance-partitioning analyses were performed to investigate the determinants of tree-species distribution at the regional scale, across and within forest types (i.e. dry and cloud forests). We marked and measured a total of 22 240 trees belonging to 160 species. Significant environmental factors and spatial location combined accounted for 35% of total variation explained. A high proportion of variation was explained by climatic factors that were spatially structured; after removing the spatial effect, climate explained more variation in species composition across the complete gradient than did local factors. Relative importance of regional and local factors varied with geographic extent. Local factors explained more variation in tree-species composition at the within-forest scale than at the scale of the complete gradient. Our findings support the conceptual model of multi-scale controls on vegetation distribution, where local community composition and abundance result from processes at both regional and local scales.

scholarly journals Ecological Gradient Analysis and Environmental Interpretation of Cyclocarya paliurus Communities

Forests ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 146
Author(s):  
Caowen Sun ◽  
Yongsheng Zhou ◽  
Shengzuo Fang ◽  
Xulan Shang
Keyword(s):  
Environmental Factors ◽  
Tree Species ◽  
Environmental Gradient ◽  
Gradient Analysis ◽  
Mixed Forest ◽  
Importance Value ◽  
Ecological Gradient ◽  
Cyclocarya Paliurus ◽  
Environmental Interpretation ◽  
Species Importance

Cyclocarya paliurus (Batal.) Iljinsk. is mainly distributed in the subtropical areas of China. The leaves of this species are rich in beneficial secondary metabolites exhibiting bioactivity against human diseases, including hyperlipemia, diabetes, and hypertension. To explore the adaptability and distribution characteristics along the environmental gradient of this species, investigation of the characteristics of C. paliurus communities is necessary. In this study, we established 31 sample plots, each 20 m × 20 m, and comparatively analyzed the species composition, species importance value, and tree species diversity of different C. paliurus communities in 2 years. Canonical correspondence analyses were carried out: the first between tree-species importance value and 12 environmental factors, and the second between C. paliurus population-related indices and the 12 environmental factors. On the basis of these analyses, we identified tree species varying markedly in abundance in the studied C. paliurus communities. Several tree species showed adaptive characteristics similar to those of C. paliurus. We also observed that the C. paliurus importance value varied along elevational, longitudinal, and temperature gradients. Our findings should be valuable for prediction of C. paliurus adaptive areas and mixed forest afforestation in different distribution areas.

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