Results 111 to 120 of about 1,205,740 (288)

Global canopy height regression and uncertainty estimation from GEDI LIDAR waveforms with deep ensembles [PDF]

Remote Sensing of Environment, 2021
Nico Lang, Nikolai Kalischek, J. Armston, K. Schindler, R. Dubayah, J. D. Wegner   +5 more
semanticscholar   +1 more source

Rediscovery of Passiflora clypeophylla (subgenus Decaloba): a highly threatened and narrow endemic species found within a karstic canyon in Guatemala

Nordic Journal of Botany, EarlyView.
Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe, Dennis I. Medina, Saban Sequen, Maura L. Quezada   +3 more
wiley   +1 more source

Sedum zhenghaianum (Crassulaceae), a new species from Zhejiang and Jiangxi, East China

Nordic Journal of Botany, EarlyView.
In this paper, Sedum zhenghaianum sp. nov. is described as a new species based on morphological and molecular analyses, and its taxonomic relationships are discussed. Morphological analysis indicates that S. zhenghaianum should be classified in the genus Sedum sect. Sedum and is distinct from the related species S. tosaense in morphology, e.g.
Shi‐Qi She, Shi‐Guo Huang, Yang Zhang, Shen‐Hao Yao, Zong‐Wei Zhu, Xin Zhou, Yue‐Liang Xu   +6 more
wiley   +1 more source

Uncertainty analysis for forest height inversion using L / P band PolInSAR datasets and RVoG model over kryclan forest site

International Journal of Applied Earth Observations and Geoinformation
Forest height, as a measure of the quantity and quality of forest resources, plays a significant role in the study of the ecological functions performed by forests.
Han Zhao, Tingwei Zhang, Yongjie Ji, Wangfei Zhang   +3 more
doaj   +1 more source

Time to burn: landscape drivers of fuel trait variability and fire regime in savanna ecosystems

Oikos, EarlyView.
Fuel traits are important determinants of fire behavior and regime in savannas and, thus, of how fire affects plant communities. However, whether these traits are correlated, predictable and how they are influenced by biotic and abiotic drivers remain to be rigorously evaluated.
Waleska B. F. Manzan, Karyna Oliveira Arantes, Vinícius L. Dantas   +2 more
wiley   +1 more source

Accuracy of Vegetation Height and Terrain Elevation Derived from Terrestrial Ecosystem Carbon Inventory Satellite in Forested Areas

Applied Sciences
Forest ecosystems serve as pivotal components of the global carbon cycle, with canopy height representing a critical biophysical parameter for quantifying ecosystem functionality, thereby holding substantial implications for forest resource management ...
Zhao Chen, Sijie He, Anmin Fu
doaj   +1 more source

Forbs in Viking lands: the effect of disturbing dominant graminoids on recruitment in tundra grasslands

Oikos, EarlyView.
Grasslands, by definition, are dominated by graminoids. Nevertheless, forbs also make up a substantial part of vascular plant diversity in grasslands and are important resources of mammalian herbivores. However, forb recruitment is constrained by successful dominant graminoids, limiting access to safe sites for germination.
Gerardo Celis, Dorothee Ehrich, Mary Heskel, Eeva Soininen, Peter Ungar, Kari Anne Bråthen   +5 more
wiley   +1 more source

Resource limitation and competition shape reproductive allocation and synchrony

Oikos, EarlyView.
The dynamics of reproductive allocation (RA) in herbaceous plant communities, particularly in response to varying environmental conditions such as drought stress and competitive interactions, remain underexplored. This study aims to fill this gap by hypothesising that both belowground resource limitation and the presence of dominant species ...
Jan Douda, Jana Doudová, Alena Havrdová   +2 more
wiley   +1 more source

A amostragem estratificada aprimora a compreensão das redes entre morcegos e frutos na Mata Atlântica meridional

Oikos, EarlyView.
Few studies have sought to understand the vertical patterns of bat–fruit systems, and therefore, it is not possible to evaluate whether interpretations based on data collected from a single stratum adequately represent the interaction patterns of this system. In this context, we evaluated the dissimilarity in the assemblage of frugivorous bats, plants,
Karolaine Porto Supi, Thais Bastos Zanata, Daniela Aparecida Savariz Bôlla, Fernando Carvalho   +3 more
wiley   +1 more source

Multiple scales of fear: foraging behaviour of white‐naped jays in semiarid landscapes

Oikos, EarlyView.
Animals must constantly balance the need to find resources with the risk of predation. Not only avoiding direct encounters with predators but also assessing the overall risk of their environment using cues, social information or habitat traits at multiple spatial and temporal scales.
Maria Carolina Beiriz, Luiz A. M. Mestre, Lorenzo R. S. Zanette   +2 more
wiley   +1 more source