Results 21 to 30 of about 1,181,495 (342)

Soil properties variation in a small-scale altitudinal gradient of an evergreen foothills forest, Ecuadorian Amazon region

open access: yesEuropean Journal of Forest Research, 2023
The aim of this study was to evaluate variation in the soil physical and chemical properties in a small-scale elevation gradient at 601–1000 m above sea level in an Evergreen Andean-Amazonian Forest.
Carlos Bravo-Medina   +6 more
semanticscholar   +1 more source

The vulnerability of lakes to climate change along an altitudinal gradient

open access: yesCommunications Earth & Environment, 2021
Studies of future 21st century climate warming in lakes along altitudinal gradients have been partially obscured by local atmospheric phenomena unresolved in climate models.
Love Råman Vinnå   +3 more
semanticscholar   +1 more source

Elevational patterns of species richness, range and body size for spiny frogs. [PDF]

open access: yesPLoS ONE, 2011
Quantifying spatial patterns of species richness is a core problem in biodiversity theory. Spiny frogs of the subfamily Painae (Anura: Dicroglossidae) are widespread, but endemic to Asia.
Junhua Hu   +3 more
doaj   +1 more source

Invasion of the tropical earthworm Pontoscolex corethrurus (Rhinodrilidae, Oligochaeta) in temperate grasslands [PDF]

open access: yesPeerJ, 2016
The tropical earthworm Pontoscolex corethrurus (Rhinodrilidae, Oligochaeta) presents a broad distribution (e.g., 56 countries from four continents).
Diana Ortiz-Gamino   +2 more
doaj   +2 more sources

Species distribution of Quercus (Fagaceae) along an altitude gradient, reveals zonation in a hotspot

open access: yesBotan‪ical Sciences, 2021
Background: The genus Quercus has a keystone role in the temperate forests in the northern hemisphere; thus this offers an interesting opportunity to use it as a model to know altitudinal species richness patterns which could be used in further studies ...
Saddan Morales-Saldaña   +3 more
doaj   +1 more source

Orchid diversity along an altitudinal gradient in the central Balkans

open access: yesFrontiers in Ecology and Evolution, 2022
Understanding patterns of species diversity along an altitudinal gradient is the major topic of much biogeographical and ecological research. The aim of this study was to explore how richness and density of orchid species and subspecies in terms of ...
V. Djordjević   +3 more
semanticscholar   +1 more source

Altitudinal gradients, plant hybrid zones and evolutionary novelty [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2014
Altitudinal gradients are characterized by steep changes of the physical and biotic environment that present challenges to plant adaptation throughout large parts of the world. Hybrid zones may form where related species inhabit different neighbouring altitudes and can facilitate interspecific gene flow and potentially the breakdown of ...
Abbott, R.J., Brennan, A.C.
openaire   +3 more sources

Effects of slope aspect on altitudinal pattern of soil C:N:P stoichiometry in alpine forest of Tibet [PDF]

open access: yesE3S Web of Conferences, 2021
Knowledge of altitudinal patterns in soil C, N and P distribution is important for understanding biogeochemical processes in mountainous forests, yet the influence of slope aspects on soil stoichiometry has been largely neglected in previous studies.
Li Jiangrong   +3 more
doaj   +1 more source

Distribution and pollination services of wild bees and hoverflies along an altitudinal gradient in mountain hay meadows

open access: yesEcology and Evolution, 2021
Extensively managed and flower‐rich mountain hay meadows, hotspots of Europe's biodiversity, are subject to environmental and climatic gradients linked to altitude.
K. Baumann   +3 more
semanticscholar   +1 more source

Effects of altitudinal gradient on benthic macroinvertebrate assemblages in two hydrological periods in a Neotropical Andean river

open access: yesEcología Austral, 2020
The altitudinal gradient and the hydrological dynamics affect the establishment and distribution of organisms in Andean rivers. Benthic macroinvertebrates, an essential component of lotic ecosystems, are useful to assess the influence of the altitudinal
Raúl F. García-Ríos   +2 more
doaj   +1 more source

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