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lowlands, etc ; canopy; canopy height; global change; landscapes; lidar; mortality; spatial data; topography; tree mortality; tropical rain forests; French Guiana; Show all 12 Subjects
Abstract:
... Several studies have shown an increase in tree mortality in intact tropical forests in recent decades. However, most studies are based on networks of field plots whose representativeness is debated. We examine the potential of repeated Airborne LiDAR Scanning data to map forest structure change over large areas with high spatial resolution and to detect tree mortality patterns at landscape level. ...
... The article presents the results of observations and research on the dynamics of exogenous erosion processes on the shores of lowland reservoirs in Belarus. Features and regularities of the dynamics of development of exogenous shores subject to abrasion-processing and an assessment of planned and profile stability of coastal slopes on the basis of proposed criteria are presented. The relationship ...
lowlands, etc ; algorithms; prairies; seasons; validity; water; Canada; Show all 7 Subjects
Abstract:
... The delineation of precipitation regions is to identify homogeneous zones in which the characteristics of the process are statistically similar. The regionalization process has three main components: (i) delineation of regions using clustering algorithms, (ii) determining the optimal number of regions using cluster validity indices (CVIs), and (iii) validation of regions for homogeneity using L-mo ...
lowlands, etc ; Landsat; agricultural land; climate; coasts; glaciers; islands; land use and land cover maps; meteorological data; remote sensing; surface temperature; Poland; Show all 12 Subjects
Abstract:
... Variations in climatic pattern due to boundary layer processes at the topoclimatic scale are critical for ecosystems and human activity, including agriculture, fruit harvesting, and animal husbandry. Here, a new method for topoclimate mapping based on land surface temperature (LST) computed from the brightness temperature of Landsat ETM+ thermal bands (band6) is presented. The study was conducted ...
... Soil and geobotanical studies were carried out in a landscape district within the Northern Sarpa lowland of the Caspian Depression in a zone of light-chestnut soil. The collected data made it possible to assess the variation of soil-salinity values typical for dry-steppe plant species and communities in the Republic of Kalmykia and to produce digital models for a geobotanical indication of soil sa ...
... Although in recent years mixed carbonate–siliciclastic platforms have been increasingly recognized in the Permian of Western Gondwana, there is no detailed description of these mixed systems in West-Central Gondwana. This study focuses on the Permian of the Sergipe–Alagoas Basin (NE Brazil), with the aim of filling this knowledge gap. Based on sedimentological data and microfacies analysis, six fa ...
... The North Jiangsu Basin (NJB), located in the western part of the North Jiangsu-South Yellow Sea Basin, is a critical region providing invaluable archives about the evolution processes of the land-ocean interchange and climatic environments in a coastal zone. Chronology is of crucial importance to reconstruct the timing of sea-level eustacy, and shoreline changes, as well as the evolution of the r ...
lowlands, etc ; Neotropics; Thamnophilidae; basins; genetic analysis; genetic structure; genetic variation; high-throughput nucleotide sequencing; loci; paraphyly; population genetics; population structure; rivers; taxonomic revisions; Show all 14 Subjects
Abstract:
... The stipple-throated antwrens of the genus Epinecrophylla (Aves: Thamnophilidae) are represented by eight species primarily found in the lowlands of the Amazon Basin and the Guiana Shield. The genus has a long and convoluted taxonomic history, with many attempts made to address the taxonomy and systematics of the group. Here we employ massively parallel sequencing of thousands of ultraconserved el ...
lowlands, etc ; activated carbon; bromides; coagulation; disinfectants; dissolved organic carbon; haloacetic acids; halogenated hydrocarbons; molecular weight; remediation; surface water; water pollution; water treatment; United Kingdom; Show all 14 Subjects
Abstract:
... The current study compared the impact of three different unit processes, coagulation, granular activated carbon (GAC), and a novel suspended ion exchange (SIX) technology, on disinfection by-product formation potential (DBPFP) from two UK lowland water sources with medium to high bromide content. Specific attention was given to the influence of the organic molecular weight (MW) fraction on DBPFP a ...
... Combining both biological diversity and cultural significance, populations of big trees in Japan are considered important. Furthermore, individual specimens, often with broken and unusual tree form, are highly striking and create a ‘sense of place’ in a locale. The giant Castanopsis sieboldii trees belonging to the family Fagaceae have a trunk circumference of over 3 m. These trees are distributed ...
lowlands, etc ; Bayesian theory; Miocene epoch; Pleistocene epoch; Sarraceniaceae; biogeography; carnivores; drainage; genes; global warming; habitats; highlands; internal transcribed spacers; marshes; phylogeny; ribosomal DNA; temperature; Show all 17 Subjects
Abstract:
... Heliamphora is a genus of carnivorous pitcher plants endemic to the Guiana Highlands with fragmented distributions. We present a well resolved, time-calibrated, and comprehensive Heliamphora phylogeny estimated using Bayesian inference and maximum likelihood based on nuclear genes (26S, ITS, and PHYC) and secondary calibration. We used stochastic mapping to infer ancestral states of morphological ...
lowlands, etc ; alpine vegetation; altitude; data collection; frequency; gene flow; genetic variation; habitats; history; linear models; literature; longevity; mating systems; pollination; population; Alps region; Central European region; Show all 17 Subjects
Abstract:
... AIM: High mountain regions exhibit a much stronger environmental heterogeneity and a more complex glacial history than lowland regions. In this study, we compared the genetic variation of plant species occurring in different altitudinal zones. We tested the assumption that environmental and historic differences among high mountain regions and lowlands result in different patterns of genetic divers ...
lowlands, etc ; acetophenones; alkaloids; altitude; benzyl alcohol; catechol; chemical constituents of plants; hexanols; leaves; mountains; odor compounds; oolong tea; pelargonic acid; phenylethyl alcohol; volatile organic compounds; China; Show all 16 Subjects
Abstract:
... Chinese people have consistentlypreferred high mountain tea because specific flavors are memorable for them, and also, people have traditionally considered this type of tea to be good for health. Tieguanyin is one of the famous traditional Chinese tea that has ever‐changing aromas. To illustrate the various characteristics in volatile fragment compounds from Tieguanyin tea, fresh tea leaves collec ...
... AIM: Patterns of diversity along elevational gradients are driven by species characteristics but remain poorly understood. Filling this gap is imperative given the deteriorating conservation status of anurans worldwide. Here, we examine frog diversity and species composition along a sharp subtropical elevational gradient and assess the degree to which these are determined by environmental and spat ...
lowlands, etc ; basins; dams (hydrology); hardwood forests; home range; overwintering; predation; snakes; wetlands; Arkansas; Show all 10 Subjects
Abstract:
... We radiotracked eight, free-living, Red-Bellied Mudsnakes (Farancia abacura) from April to October 2019 in a bottomland hardwood forest wetland in Central Arkansas. Four snakes emerged in April from their overwintering sites in an earthen dam of a 1.2 ha pond and confined all of their movements to the pond basin. All four snakes were lost to predators during the course of the year. Four other snak ...
lowlands, etc ; Holocene epoch; Landsat; Siberia; area; classification; climatic factors; degradation; detection; digital elevation models; dynamics; global warming; ice; inventories; lakes; landscapes; remote sensing; spatial data; watersheds; Arctic region; Show all 20 Subjects
Abstract:
... Thermokarst lakes are widespread in Arctic lowlands. Under a warming climate, landscapes with highly ice-rich Yedoma Ice Complex (IC) deposits are particularly vulnerable, and thermokarst lake area dynamics serve as an indicator for their response to climate change. We conducted lake change trend analysis for a 44,500 km² region of the Kolyma Lowland using Landsat imagery in conjunction with TanDE ...
lowlands, etc ; Nymphalidae; butterflies; ecosystems; entomology; extinction; face; habitats; knowledge; summer; temperature; winter; Mauritius; Seychelles; Show all 14 Subjects
Abstract:
... In the face of butterfly species extinction on Seychelles and Mascarene archipelagos, there is an urgent need of increasing our knowledge about species, especially those which have been extinct from one island. Here, we focus on Antanartia borbonica (Oberthür, 1880), a threatened Mascarene butterfly, extinct from Mauritius and considered locally endangered (EN) on Réunion by the French IUCN commit ...
lowlands, etc ; Anura; Neotropics; climate; geographical distribution; global warming; highlands; models; mountains; phylogeny; species richness; topography; Show all 12 Subjects
Abstract:
... Climate change is likely to impact multiple dimensions of biodiversity. Species range shifts are expected and may drive changes in the composition of species assemblages. In some regions, changes in climate may precipitate the loss of geographically restricted, niche specialists and facilitate their replacement by more widespread, niche generalists, leading to decreases in β‐diversity and biotic h ...
... The pathogenicity of 192 blast isolates collected from regions across the whole of Laos from 2007 to 2009 showed a wide variation in terms of the frequencies of virulence toward differential varieties (DVs) and the susceptible control cultivar Lijiangxintuanheigu. High frequencies of virulence (>50%) were found in the reactions of DVs for Pit, Pia, Pi3, Pi5(t), Pik-s, Piz-t, Pi19(t), and Pi20(t); ...
... Viviparous reproduction has evolved independently more than 100 times in the evolutionary history of Squamata (lizards and snakes). Adaptation to cold climates is the dominant hypothesis explaining shifts to viviparity, but viviparous species are also present in the tropical lowlands, implying the presence of other factors that may also promote the evolution of viviparity. For example, the tropica ...