Environment and plant traits explain shrub biomass allocation and species composition across ecoregions in North China

2021 ◽  
Author(s):  
Yongfu Chai ◽  
Jiayi Zhong ◽  
Jiale Zhao ◽  
Jiangchao Guo ◽  
Ming Yue ◽  
...  
Keyword(s):  
Species Composition ◽  
Biomass Allocation ◽  
North China ◽  
Plant Traits ◽  
Shrub Biomass

scholarly journals Altitudinal pattern of shrub biomass allocation in Southwest China

PLoS ONE ◽  
2020 ◽  
Vol 15 (10) ◽  
pp. e0240861
Author(s):  
Mei Liu ◽  
Dandan Li ◽  
Jun Hu ◽  
Dongyan Liu ◽  
Zhiliang Ma ◽  
...  
Keyword(s):  
Biomass Allocation ◽  
Southwest China ◽  
Shrub Biomass

scholarly journals Species composition and plant traits of south Atlantic European coastal dunes and other comparative data

Data in Brief ◽  
2019 ◽  
Vol 22 ◽  
pp. 207-213 ◽  
Author(s):  
Marta Torca ◽  
Juan Antonio Campos ◽  
Mercedes Herrera
Keyword(s):  
Species Composition ◽  
Plant Traits ◽  
Coastal Dunes ◽  
South Atlantic ◽  
Comparative Data

Changes in individual plant traits and biomass allocation in alpine meadow with elevation variation on the Qinghai-Tibetan Plateau

2010 ◽  
Vol 53 (9) ◽  
pp. 1142-1151 ◽  
Author(s):  
WeiLing Ma ◽  
PeiLi Shi ◽  
WenHua Li ◽  
YongTao He ◽  
XianZhou Zhang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Biomass Allocation ◽  
Alpine Meadow ◽  
Plant Traits ◽  
Individual Plant

scholarly journals Floristic Biodiversity of Weed Communities in Arable Lands of Istria Peninsula (From 2005 to 2017)

2019 ◽  
Vol 38 (2) ◽  
pp. 166-177 ◽  
Author(s):  
Edita Štefanić ◽  
Vesna Kovačević ◽  
Slavica Antunović ◽  
Božica Japundžić-Palenkić ◽  
Dinko Zima ◽  
...  
Keyword(s):  
Species Composition ◽  
Plant Traits ◽  
Row Spacing ◽  
Weed Species ◽  
Row Crops ◽  
The Past ◽  
Full Development ◽  
Weed Communities ◽  
Olive Groves ◽  
The Difference

AbstractThis paper analyses the floristic biodiversity of weed communities in the arable lands of the Istrian peninsula during a twelve year period (2005–2017). A total of 50 fields were surveyed for each sampling time using the seven-degree Braun-Blanquet cover abundance scale in the following agricultural categories: a) permanent crops (vineyards/olive groves), b) alfalfa fields, c) cereals, d) row crops and e) ruderal areas. The taxonomic identification was performed during the full development of vegetation, for cereals in June and July, and for the rest – in August and September. A total of 175 weed species were determined during both study periods with Asteraceae and Poaceae families as the most abundant. Altogether, therophytes were dominant in both surveys, followed by hemycryptophytes and geophytes. Variations in species composition were visible in both study periods (2005 and 2017) as well as in the selected habitat types. Exclusive species were found in addition to those that were common for both surveys. Changes in species composition between 2005 and 2017 referred to the difference in row spacing in earlier period, and ruderal vs. agricultural habitats in the recent survey. The differences in phenological traits between the past and present surveys were greatest for germination season in permanent crops and row crops, flowering start for permanent crops, flowering period for ruderal area and weed height for permanent crops. Significant differences between the past and present survey for other plant traits did not occur.

scholarly journals Changes in species composition, diversity and biomass of herbaceous plant traits due to N amendment in a dry tropical environment of India

2014 ◽  
Vol 8 (3) ◽  
pp. 321-332 ◽  
Author(s):  
Punita Verma ◽  
R. Sagar ◽  
Hariom Verma ◽  
Preeti Verma ◽  
Dharmendra K. Singh
Keyword(s):  
Species Composition ◽  
Plant Traits ◽  
Tropical Environment ◽  
Herbaceous Plant

scholarly journals Intraspecific trait variability shapes leaf trait response to altered fire regimes

2020 ◽  
Author(s):  
Rachel M Mitchell ◽  
Greg M Ames ◽  
Justin P Wright
Keyword(s):  
Species Composition ◽  
Community Composition ◽  
Functional Traits ◽  
Plant Traits ◽  
Fire Regime ◽  
Pinus Palustris ◽  
Fire Frequency ◽  
Fire Intensity ◽  
Dry Matter Content ◽  
Disturbance Regimes

Abstract Background and Aims Understanding impacts of altered disturbance regimes on community structure and function is a key goal for community ecology. Functional traits link species composition to ecosystem functioning. Changes in the distribution of functional traits at community scales in response to disturbance can be driven not only by shifts in species composition, but also by shifts in intraspecific trait values. Understanding the relative importance of these two processes has important implications for predicting community responses to altered disturbance regimes. Methods We experimentally manipulated fire return intervals in replicated blocks of a fire-adapted, longleaf pine (Pinus palustris) ecosystem in North Carolina, USA and measured specific leaf area (SLA), leaf dry matter content (LDMC) and compositional responses along a lowland to upland gradient over a 4 year period. Plots were burned between zero and four times. Using a trait-based approach, we simulate hypothetical scenarios which allow species presence, abundance or trait values to vary over time and compare these with observed traits to understand the relative contributions of each of these three processes to observed trait patterns at the study site. We addressed the following questions. (1) How do changes in the fire regime affect community composition, structure and community-level trait responses? (2) Are these effects consistent across a gradient of fire intensity? (3) What are the relative contributions of species turnover, changes in abundance and changes in intraspecific trait values to observed changes in community-weighted mean (CWM) traits in response to altered fire regime? Key Results We found strong evidence that altered fire return interval impacted understorey plant communities. The number of fires a plot experienced significantly affected the magnitude of its compositional change and shifted the ecotone boundary separating shrub-dominated lowland areas from grass-dominated upland areas, with suppression sites (0 burns) experiencing an upland shift and annual burn sites a lowland shift. We found significant effects of burn regimes on the CWM of SLA, and that observed shifts in both SLA and LDMC were driven primarily by intraspecific changes in trait values. Conclusions In a fire-adapted ecosystem, increased fire frequency altered community composition and structure of the ecosystem through changes in the position of the shrub line. We also found that plant traits responded directionally to increased fire frequency, with SLA decreasing in response to fire frequency across the environmental gradient. For both SLA and LDMC, nearly all of the observed changes in CWM traits were driven by intraspecific variation.

scholarly journals Species interactions modulate the response of saltmarsh plants to flooding

2019 ◽  
Author(s):  
Ryan S Edge ◽  
Martin J P Sullivan ◽  
Scott M Pedley ◽  
Hannah L Mossman
Keyword(s):  
Species Composition ◽  
Functional Traits ◽  
Species Interactions ◽  
Plant Traits ◽  
Intraspecific Variability ◽  
Community Level ◽  
Positive Interactions ◽  
Above Ground Biomass ◽  
Ground Biomass ◽  
Below Ground

Abstract Background and Aims The vegetation that grows on coastal wetlands is important for ecosystem functioning, a role mediated by plant traits. These traits can be affected by environmental stressors and by the competitive environment the plant experiences. The relative importance of these influences on different traits is poorly understood and, despite theoretical expectations for how factors may interact, empirical data are conflicting. Our aims are to determine the effect of flooding, species composition and their interaction on plant functional traits, and assess the role of biodiversity and species composition in driving community-level responses to flooding. Methods We conducted a factorial glasshouse experiment assessing the effects of species composition (all combinations of three saltmarsh species, Aster tripolium, Plantago maritima and Triglochin maritima) and flooding (immersion of roots) on a suite of functional traits. We also related biomass in mixed species pots to that expected from monocultures to assess how species interactions affect community-level biomass. Key Results Species composition frequently interacted with flooding to influence functional traits and community-level properties. However, there was also considerable intraspecific variability in traits within each treatment. Generally, effects of flooding were more pronounced for below-ground than above-ground biomass, while composition affected above-ground biomass more than below-ground biomass. We found both negative and positive interactions between species (indicated by differences in above- and below-ground biomass from expectations under monoculture), meaning that composition was an important determinate of community function. Conclusions While the effect of flooding alone on traits was relatively weak, it interacted with species composition to modify the response of both individual plants and communities. Our results suggest that responses to increased flooding will be complex and depend on neighbourhood species interactions. Furthermore, intraspecific trait variability is a potential resource that may dampen the effects of changes in flooding regime.

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