Find research datasets worth reusing

Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.

datasets available to search

ShareScore release 0.7.1

Dataset results

52 results for “leaf size”

Learn how ShareScore rates datasets ↗

zenodo40/100

Linked collectors and determiners for: Towards completion of the species inventory of small-sized leaf-tailed geckos: two new species of Uroplatus from northern Madagascar.

Natural history specimen data linked to collectors and determiners held within, "Towards completion of the species inventory of small-sized leaf-tailed geckos: two new species of Uroplatus from northern Madagascar". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/799d241f-7891-4146-a38c-7809efa13368">https://bionomia.net/dataset/799d241f-7891-4146-a38c-7809efa13368</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/799d241f-7891-4146-a38c-7809efa13368">https://gbif.org/dataset/799d241f-7891-4146-a38c-7809efa13368</a>. Formatted as a Frictionless Data package.

opencc-zeroJan 2024View details →

dryad36/100

Plant size and leaf traits for epiphyte species found in flooded gallery forests and non-flooded gallery forests in Central Brazil

Despite their unique adaptations to thrive in canopy environments without access to soil resources, epiphytes are underrepresented in studies of functional traits and of functional composition of tropical plant communities. We investigated functional traits of spermatophytic (seed-bearing) C3 and CAM epihyte communities in flooded and non-flooded gallery forests in Central Brazil. The two forest types differ in floristic, structure, microclimate and edaphic conditions. We studied plant size, leaf thickness, leaf dry matter content, leaf area, specific leaf area, leaf C, N, P, K, Mg, Ca and C and N stable isotope ratios. Because photosynthetic pathway (C3 or CAM) is an important aspect of ecologial differentiation of spermatophytic epiphytes, we expected that functional trait syndromes in a multivariate space would be more associated with photosynthetic pathway than forest type and changes in abundance of C3 and CAM epiphytes would drive functional trait composition at the community level. C3 and CAM epiphytes segregated in the multivariate trait space, however more complex functional typologies were also evident. Despite lower light levels, CAM epiphytes were more abundant in the flooded gallery forest. There, they accounted for 80% of all individuals, whereas C3 epiphytes dominated in the non-flooded forest. These large differences in the proportion of C3 and CAM epiphytes strongly affected functional trait values at the community level, despite very little intraspecfic variation in trait values between forest types for species that occurred in both forests.

opencc-zeroNov 2020View details →

dryad36/100

Wood density and leaf size jointly predict woody plant growth rates across (but not within) species along a steep precipitation gradient

1. Functional traits have been proposed to define key dimensions of plant ecological strategies, but we lack consensus on whether traits can accurately predict plant demography. Despite theoretical expectations, it has been challenging to find consistent relationships between functional traits and growth. 2. In this study, we quantified inter- and intraspecific trait variation and individual growth rates of woody plants across a steep moisture gradient that varies 10-fold in annual precipitation (350–3,700 mm) in southern Chile and used a hierarchical Bayesian model to predict growth as a function of trait values. 3. We show that large-leaved species with lower stem tissue density exhibited the fastest growth rates, and these two traits exhibited the highest proportion of interspecific variation. Predictions of growth improved considerably (R2 of the best model increased from 0.28 to 0.49) when species-level multiple traits and their interactions were considered. The inclusion of intraspecific trait variation (ITV), however, did not improve models of growth rate. 4. We found that trait-growth rate relationships were not always consistent across levels of biological organization; relationships observed at the interspecific level did not necessarily hold at the intraspecific level. We found that the relationships between wood density or leaf size and growth were consistent in direction across the precipitation gradient, and the relationships between leaf economics traits and growth were weak and site-specific. 5. Synthesis. Although using more than one functional trait considerably improved growth predictions, wood density and leaf size successfully predicted growth rates across (not within) species, which is consistent with a whole-plant carbon economy. We assert that these two traits are intimately linked and ultimately describe a continuum of plant architecture and carbon economy that covers multiple trait syndromes.

opencc-zeroNov 2023View details →

dryad36/100

Data recorded for leaf size, and leaf vein and areole measurements taken from nine Magnoliaceae species

Across species, the density of major veins in leaves scales inversely with leaf area. Yet, minor vein density manifests no clear relationship with respect to leaf are, despite having the potential to provide important insights into the trade-off between investments in leaf mechanical support, hydraulics, and light interception. To examine this phenomenon, between 120−380 mature leaves from each of nine Magnoliaceae species were sampled from Nanjing Forestry University campus and Nanjing Botanical Garden, Chinese Academy of Sciences, Nanjing, China in 2019 and 2020. The leaves were boiled, and the epidermal and mesophyll tissues were removed. The remaining leaf skeleton was stained to obtain a clear leaf venation network. The software LEAF GUI was used to obtain the data of leaf size, leaf vein and areole traits. The large sample size data render it possible to explore the scaling relationships between leaf size and each trait of leaf veins and areoles. This data set includes the information of leaf length, leaf width, leaf area, total vein length, total vein area, mean areole area per leaf, and the number of the areole sizes per leaf of the nine Magnoliaceae species.

opencc-zeroApr 2022View details →

dryad36/100

Leaf size variations in a dominant desert shrub, Reaumuria soongarica, adapted to heterogeneous environments

The climate in arid Central Asia (ACA) has changed rapidly in recent decades, but the ecological consequences of this are far from clear. To predict the impacts of climate change on ecosystem functioning, greater attention should be given to the relationships between leaf functional traits and environmental heterogeneity. As a dominant constructive shrub widely distributed in ACA, Reaumuria soongarica provided us with an ideal model to understand how leaf functional traits of desert ecosystems responded to the heterogeneous environments of ACA. Here, to determine the influences of genetic and ecological factors, we characterized species-wide variations in leaf traits among 30 wild populations of R. soongarica and 16 populations grown in a common garden. We found that the leaf length, width, and leaf length to width ratio (L/W) of the northern lineage were significantly larger than those of other genetic lineages, and principal component analysis based on the in situ environmental factors distinguished the northern lineage from the other lineages studied. With increasing latitude, leaf length, width, and L/W in the wild populations increased significantly. Leaf length and L/W were negatively correlated with altitude, and first increased and then decreased with increasing mean annual temperature (MAT) and mean annual precipitation (MAP). Stepwise regression analyses further indicated that leaf length variation was mainly affected by latitude. However, leaf width was uncorrelated with altitude, MAT or MAP. The common garden trial showed that leaf width variation among the eastern populations was caused by both local adaptation and phenotypic plasticity. Our findings suggest that R. soongarica preferentially changes leaf length to adjust leaf size to cope with environmental change. We also reveal phenotypic evidence for ecological speciation of R. soongarica. These results will help us better understand and predict the consequences of climate change for desert ecosystem functioning.

opencc-zeroAug 2021View details →

dryad36/100

Application of leaf size and leafing intensity scaling across subtropical trees

Understanding the scaling between leaf size and leafing intensity (leaf number per stem size) is crucial for comprehending theories about the leaf costs and benefits in the leaf size–twig size spectrum. However, the scaling scope of leaf size vs. leafing intensity changes along the twig leaf size variation in different leaf habit species remains elusive. Here, we hypothesize that the numerical value of scaling exponent for leaf mass versus leafing intensity in twig is governed by the minimum leaf mass versus maximum leaf mass (Mmin vs. Mmax) and constrained to be ≤ -1.0. We tested this hypothesis by analyzing the twigs of 123 species datasets complied in the subtropical mountain forest. The standardized major axis regression (SMA) analyses showed the Mmin scaled as the 1.19 power of Mmax and the -a (-1.19) was not statistically different from the exponents of Mmin vs. leafing intensity in whole data. Across leaf habit groups, the Mmax scaled negatively and isometrically with respect to leafing intensity. The pooled data's scaling exponents ranged from -1.14 to -0.96 for Mmin and Mmax vs. the leafing intensity based on stem volume (LIV). In the case of Mmin and Mmax vs. the leafing intensity based on stem mass (LIM), the scaling exponents ranged from -1.24 to -1.04. Our hypothesis successfully predicts that the scaling relationship between leaf mass and leafing intensity is constrained to be ≤ -1.0. More importantly, the lower limit to scaling of leaf mass and leafing intensity maybe closely correlate with Mmin vs. Mmax. Besides, constrained by the maximum leaf mass expand, the broad scope range between leaf size and number may be insensitive to leaf habit groups in subtropical mountain forest.

opencc-zeroApr 2020View details →

dryad36/100