Results 51 to 60 of about 486,429 (206)

Altitudinal Vascular Plant Richness and Climate Change in the Alpine Zone of the Lefka Ori, Crete

open access: yesDiversity, 2021
High mountain zones in the Mediterranean area are considered more vulnerable in comparison to lower altitudes zones. Lefka Ori massif, a global biodiversity hotspot on the island of Crete is part of the Global Observation Research Initiative in Alpine ...
George Kazakis   +5 more
doaj   +1 more source

Increasing turnover through time in tropical forests [PDF]

open access: yes, 1994
Tree turnover rates were assessed at 40 tropical forest sites. Averaged across inventoried forests, turnover, as measured by tree mortality and recruitment, has increased since the 1950's, with an apparent pantropical acceleration since 1980.
Gentry, A.H., Phillips, O.L.
core   +1 more source

Biodiversity of estuarine fish faunas in West Africa [PDF]

open access: yes, 2000
In West Africa (between Ivory Coast and Sénégal), estuarine environments vary from lagoons to high discharge rivers to inverse hypersaline estuaries. This results in a high diversity of estuarine fish species, with an important turnover and a core of ...
Baran, E.
core  

Analysis of in vivo turnover of tau in a mouse model of tauopathy [PDF]

open access: yes, 2015
BACKGROUND: Intracellular accumulation of tau as neurofibrillary tangles (NFTs) is the hallmark of Alzheimer’s disease (AD) as well as in other tauopathies.
Hochgrafe, Katja   +7 more
core   +2 more sources

Diversity of Lacewings (Neuroptera) in an Altitudinal Gradient of the Tacaná Volcano, Southern Mexico

open access: yesInsects, 2022
Neuroptera is an order of insects with a moderate diversity of species numbers yet a high between-family morphological diversity, which has a significant ecological role as a predator.
Rodolfo J. Cancino-López   +2 more
doaj   +1 more source

StrataSeq: A Workflow for Rapid Development of Molecular Databases for Hard‐To‐Identify Species

open access: yesEcology and Evolution
Biodiversity loss necessitates improved monitoring of small, species‐rich taxa, such as protists, phyto‐ and zooplankton and terrestrial invertebrates.
Anna K. Merges   +10 more
doaj   +1 more source

Species Turnover through Time: Colonization and Extinction Dynamics across Metacommunities [PDF]

open access: yesThe American Naturalist, 2016
Island biogeography and metacommunity theory often use equilibrium assumptions to predict local diversity, yet nonequilibrium dynamics are common in nature. In nonequilibrium communities, local diversity fluctuates through time as the relative importance of colonization and extinction change.
Nuvoloni, Felipe Micali   +2 more
openaire   +4 more sources

A framework for understanding how biodiversity patterns unfold across multiple spatial scales in urban ecosystems

open access: yesEcosphere, 2021
Whether cities are more or less diverse than surrounding environments, and the extent to which non‐native species in cities impact regional species pools, remain two fundamental yet unanswered questions in urban ecology.
Christopher M. Swan   +10 more
doaj   +1 more source

Simulating Root Density Dynamics and Nitrogen Uptake -Field Trials and Root Model Approach in Denmark [PDF]

open access: yes, 2007
Plant soil and atmosphere models are commonly used to predict crop yield and associated environmental consequences. Such models often include complex modelling of water movement, soil organic matter turnover and above ground plant growth.
Jensen, Lars Stoumann   +3 more
core  

Human mitochondrial degradosome prevents harmful mitochondrial R loops and mitochondrial genome instability [PDF]

open access: yes, 2018
R loops are nucleic acid structures comprising an DNA-RNA hybrid and a displaced single-stranded DNA. These structures may occur transiently during transcription, playing essential biological functions. However, persistent R loops may become pathological
Aguilera López, Andrés   +2 more
core   +1 more source

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