Environmental Correlates of Herb Species Composition in Five Southern Wisconsin Floodplain Forests

1986 ◽  
Vol 115 (1) ◽  
pp. 106 ◽  
Author(s):  
Eric S. Menges
Keyword(s):  
Species Composition ◽  
Floodplain Forests ◽  
Environmental Correlates ◽  
Herb Species

scholarly journals Seasonal Dynamics of Floodplain Forest Understory–Impacts of Degradation, Light Availability and Temperature on Biomass and Species Composition

Forests ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 22 ◽  
Author(s):  
Natalia Czapiewska ◽  
Marcin K. Dyderski ◽  
Andrzej M. Jagodziński
Keyword(s):  
Species Composition ◽  
Seasonal Dynamics ◽  
Light Availability ◽  
Floodplain Forest ◽  
Carbon Accumulation ◽  
Forest Understory ◽  
Floodplain Forests ◽  
Biomass Crop ◽  
Biomass Dynamics ◽  
Understory Biomass

Forest understory significantly contributes to matter cycling in ecosystems, but little is known about its carbon pool. This is especially poorly understood in floodplain forests, one of the most threatened ecosystems worldwide. We studied seasonal dynamics of biomass and species composition of understory vegetation in degraded and non-degraded floodplain forests, to improve our understanding of carbon pools in forest ecosystems. We hypothesized that degraded and non-degraded floodplain forests will differ in patterns of seasonal variability of biomass and species composition. The study was conducted in Poznań (W Poland) in two study plots (each with 10 samples) across 22 dates (March–November 2016). In each date, we collected understory aboveground biomass. We evaluated impact of light availability and soil temperature on biomass and species composition. Our study revealed high dynamics of biomass production. We found maximum biomass crop of understory in degraded floodplain forest on 24 April (930.12 ± 48.70 kg ha−1), whereas in non-degraded floodplain forest the maximum occurred on 30 May (768.99 ± 40.65 kg ha−1). At the beginning of the growing season, understory biomass was dominated by spring ephemerals and later these species were replaced by others present for the whole season. Additionally, we confirmed the positive impacts of light availability and temperature on understory primary production. The pattern revealed drove species composition shifts and low differences in biomass crop between consecutive dates. Patterns of understory biomass dynamics differed between degraded and non-degraded plots. Despite study limitations, we provided rare data about understory biomass dynamics of floodplain forests, increasing knowledge about carbon accumulation and cycling in floodplain forests, and contributing to global carbon assessments.

scholarly journals Fragmentation of hardwood floodplain forests — how does it affect species composition?

2017 ◽  
Vol 18 (1) ◽  
pp. 97-108 ◽  
Author(s):  
M. Petrášová-Šibíková ◽  
T. Bacigál ◽  
I. Jarolímek
Keyword(s):  
Species Composition ◽  
Floodplain Forests

scholarly journals Rainfall amount determines annual herb controls over soil seed bank and its similarity with vegetation in the Tengger Desert

2022 ◽  
Vol 11 (1) ◽  
Author(s):  
Ya-Fei Shi ◽  
Zeng-Ru Wang ◽  
Bing-Xin Xu ◽  
Jian-Qiang Huo ◽  
Rui Hu ◽  
...  
Keyword(s):  
Species Composition ◽  
Seed Bank ◽  
Soil Seed Bank ◽  
Life Forms ◽  
Seed Banks ◽  
Tengger Desert ◽  
Desert Ecosystems ◽  
Soil Seed Banks ◽  
Annual Herb ◽  
Herb Species

Abstract Background Soil seed banks may offer great potential for maintaining and restoring desert ecosystems that have been degraded by climate change and anthropogenic disturbance. However, few studies have explored the year-to-year dynamics in the species composition (richness and abundance) of these desert soil seed banks. Thus, we conducted a 4-year study to assess the effects of environmental factors (meteorology and microtopography) and aboveground vegetation on the soil seed bank of the Tengger Desert, China. Results We found the seed bank was dominated by annual herb species both in species richness and abundance. More rainfall in the growing season increased the number of seeds in the soil seed bank, and quadrat micro-elevation had a negative effect on soil seed bank size. The species composition in the seed bank had significantly larger between-year similarity than that in the aboveground vegetation due to the dominance of annual herb species. For different life forms, the species composition of annual herbs showed distinctly larger temporal similarity between the aboveground vegetation and the seed bank compared with perennial herbs and shrubs. Conclusions Our findings highlight that the combined effects of environmental factors and plant life forms determine the species composition (especially the abundance) of soil seed banks in deserts. However, if degraded desert ecosystems are left to regenerate naturally, the lack of shrub and perennial herb seeds could crucially limit their restoration. Human intervention and management may have to be applied to enhance the seed abundance of perennial lifeforms in degraded deserts.

Comparison of the floodplain forest floristic composition of two riparian corridors: species richness, alien species and the effect of water regime changes

Biologia ◽  
2015 ◽  
Vol 70 (2) ◽  
Author(s):  
Radomír Řepka ◽  
Jan Šebesta ◽  
Petr Maděra ◽  
Petr Vahalík
Keyword(s):  
Species Richness ◽  
Endangered Species ◽  
Species Composition ◽  
Alien Species ◽  
Water Regime ◽  
Management Practices ◽  
Floristic Composition ◽  
Floodplain Forests ◽  
Riparian Corridors ◽  
River Corridor

AbstractFloodplain forests are sensitive to changes within the surrounding environment and contain the most highly invaded habitats. The overall aim of this study was to characterise floristic composition of floodplain forest along two different riparian corridors. The studied river ecosystems were influenced by human disturbances, but they have historically different hydrological management practices (e.g., damming and water regime management). We hypothesised that different hydrological management practices affect the composition and diversity of vegetation and influence multiple ecosystem functions and services in floodplain forests. A detailed study of the vascular plant species diversity of floodplain forests in the lower parts of two riparian corridors of the Thaya and Morava Rivers (South Moravia) was conducted. Altogether, 853 species of vascular plants were recorded, including 121 species of woody plants. We found 111 species that are protected by law or threatened according to the Czech Red List. We found 230 alien species, out of which 125 are archaeophytes and 105 are neophytes. Thirty-nine species are invasive; however, the most frequent group comprises naturalised archaeophytes (78). Differences in the effects of environmental factors on species richness and the proportions of alien and endangered species were tested using generalised linear models (GLMs). Differences in species composition in the two distinct riparian corridors were examined using non-metric multidimensional scaling (NMDS). Although only small differences were observed in the vegetation composition, we observed some differences in species richness and species composition between the riparian corridors. The most obvious difference was a higher proportion of alien species in the Morava River corridor than in the Thaya River corridor. In contrast, the proportion of endangered species richness was higher in the Thaya River corridor. We assume that the most probable explanation of the differences is the unique water management history for each river corridor.

scholarly journals Structure and Composition of Terra Firme and Seasonally Flooded Várzea Forests in the Western Brazilian Amazon

Forests ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1361
Author(s):  
Yennie K. Bredin ◽  
Joseph E. Hawes ◽  
Carlos A. Peres ◽  
Torbjørn Haugaasen
Keyword(s):  
Species Composition ◽  
Woody Plant ◽  
Forest Type ◽  
Brazilian Amazon ◽  
Floodplain Forests ◽  
Forest Types ◽  
Terra Firme ◽  
Flooded Forests ◽  
Terra Firme Forest ◽  
Seasonally Flooded

Research Highlights: Rare, or sparsely distributed, species drive the floristic diversity of upland, terra firme and seasonally flooded forests in the central Juruá—a remote and hitherto floristically poorly known area in the Brazilian Amazon. Background and Objectives: Floristic inventories are critical for modelling and understanding the role of Amazonian forests in climate regulation, for sustainable management of forest resources and efficient conservation planning. Yet, detailed information about the often complex spatial distributions of many Amazonian woody plants is limited. Here, we provide information about forest structure and species composition from a remote terra firme forest and an adjacent floodplain forest in the western Brazilian Amazon. More specifically, we ask (1) how floristically different are the terra firme and floodplain forests? and (2) how variable is species composition within the same forest type? Materials and Methods: Between September 2016 and October 2017, we inventoried 97 plots (each 0.1 ha; 100 × 10 m) placed at least 800 m apart, with 46 plots in terra firme forest and 51 in seasonally flooded forest. We included all trees, hemi-epiphytes and palms with diameter at breast height (dbh) > 10 cm and woody lianas > 5 cm dbh. We examine forest structure, family- and species-level floristic composition and species diversity within and between forest types using family and species importance values, rarefaction curves and dissimilarity matrices. Results: Terra firme forest and seasonally flooded forest woody plant communities differ both in structure and species composition, which was highly variable within forest types. Many species were shared between terra firme and seasonally flooded forests, but most species were forest type-specific. Whereas species richness was greatest in the terra firme forest, floodplain species richness was among the highest regionally. Conclusions: Floodplain forests are a crucial complement to terra firme forests in terms of Amazonian woody plant diversity.

scholarly journals Depletion of the floodplain-channel complex of the river (Belaya river, Republic of Bashkortostan)

2021 ◽  
Vol 244 ◽  
pp. 01012
Author(s):  
Elvira Nafikova ◽  
Dmitry Alexandrov ◽  
Anastasia Platonova ◽  
Kamila Gayanova ◽  
Kamilla Chuvashaeva
Keyword(s):  
Risk Assessment ◽  
Species Composition ◽  
Surface Waters ◽  
Forest Cover ◽  
Plant Species Composition ◽  
Floodplain Forests ◽  
Annual Average ◽  
River Floodplain ◽  
The Past ◽  
Republic Of Bashkortostan

The article presents a comprehensive assessment of the geoecological risk of the Belaya River floodplain (Republic of Bashkortostan, Russia). The risk assessment of the floodplain-channel complex includes the risk of depletion by the plant species composition and the risk of depletion of the ecological and hydrological states. Geographic information maps of the floodplain were compiled for vegetation and floodplain forests and wetlands. The extent of forest cover was chosen as an indicator of the floodplain’s resilience to the risk of depletion and decline. The calculation of the risk of depletion of floodplains based on the ecological and hydrological state was carried out taking into account the changes in floodplain areas over the past 10 years, data on the catchment of ground and surface waters, “sealed” areas and the annual average discharge. The assessment and zoning of the river floodplain territory was carried out according to the proposed method.

Field test for environmental correlates of dispersal in hedgehogs Erinaceus europaeus

2001 ◽  
Vol 70 (1) ◽  
pp. 33-46 ◽  
Author(s):  
Doncaster C. Patrick ◽  
Rondinini Carlo ◽  
Johnson Paul C. D.
Keyword(s):  
Field Test ◽  
Erinaceus Europaeus ◽  
Environmental Correlates
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