arXiv.org mediates contact with the literature for entire scholarly communities, both through provision of archival access and through daily email and web announcements of new materials, potentially many screenlengths long. We confirm and extend a surprising correlation between article position in these initial announcements, ordered by submission time, and later citation impact, due primarily ...

Forest ecosystems are among the largest terrestrial carbon reservoirs on our planet earth thus playing a vital role in global carbon cycle. Presently, remote sensing techniques provide proper estimates of forest biomass and quantify carbon stocks. The present study has explored Landsat-8 sensor product and evaluated its application in biomass mapping and estimation. The specific objectives were...

An introduction and overview of the Special Issue on Evidence-based Best Practices in the Public Vocational Rehabilitation Program that Lead to Employment Outcomes is provided and briefly discussed.

Spatio-temporal change characteristic in leaf area index (LAI), gross primary productivity (GPP), total and carbon sequestration of terrestrial vegetation at different geographic regions, provinces land cover types over China during 2000–2018 were clarified, respectively. The net increase from 2000 to 2018 is 1.7491 × 106 km2 1957.36 TgC, Southwestern part contributes the most with a contributi...

Multiple steady states in the atmospherebiosphere system can arise as a consequence of interactions and positive feedbacks. While atmospheric conditions affect vegetation productivity in terms of available light, water, and heat, different levels of vegetation productivity can result in differing energyand water partitioning at the land surface, thereby leading to different atmospheric conditio...

Vegetation is one of the most important components of the ecosystems. Knowledge about variations in vegetation species and community distribution patterns, alternations in vegetation phonological (growth) cycles, and modifications in plant physiology and morphology provide a valuable insight in to the climate, geologic and physiographic, characteristics of an area, so mapping vegetation cover i...

The starting point of our research is the detection of a small but relevant and alarming frequency of reviewed works published in high-standard journals of physics that present “evident” (basic) and invalidating mathematical mistakes. Such mistakes go unnoticed by referees and even worse; these works are subsequently quoted as correct results by other practitioners. We interpret this as an indi...

People and social communities are often characterized by the topics and themes they are working on, or communicating about. Discovering the roles played by different entities in these communities are of great interest in many real-world contexts in social network analysis. We are also often interested in discovering such roles at different levels of granularity. In this paper we study a new pro...

BACKGROUND The spatial distribution of forage resources is a major driver of animal movement patterns. Understanding where animals forage is important for the conservation of multi-species communities, since interspecific competition can emerge if different species use the same depletable resources. However, determining forage resources in a spatially continuous fashion in alpine grasslands at ...

Relevés from meadows and pastures of South Transdanubia (Hungary) are evaluated by clustering and ordination methods. The relevé selection focused on the Arrhenatheretalia order but its transitions towards other types were also included. The groups of relevés are delimited and described according to differential, dominant and constant species. Ecological conditions of the groups were compared u...