Results 21 to 30 of about 301,309 (281)

Remediation of azo-dyes based toxicity by agro-waste cotton boll peels mediated palladium nanoparticles

open access: yesJournal of Saudi Chemical Society, 2020
The present study reports an environmental benign route for the synthesis of palladium nanoparticles (Pd NPs) using agro-waste empty cotton boll peels aqueous extract for the first time.
Boya Palajonnala Narasaiah   +1 more
doaj   +1 more source

Microbial Speciation [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2015
What are species? How do they arise? These questions are not easy to answer and have been particularly controversial in microbiology. Yet, for those microbiologists studying environmental questions or dealing with clinical issues, the ability to name and recognize species, widely considered the fundamental units of ecology, can be practically useful ...
B Jesse, Shapiro, Martin F, Polz
openaire   +2 more sources

Cadmium Speciation Distribution Responses to Soil Properties and Soil Microbes of Plow Layer and Plow Pan Soils in Cadmium-Contaminated Paddy Fields

open access: yesFrontiers in Microbiology, 2021
Cadmium (Cd) speciation ratio in arable land determines the Cd exposure risk and Cd uptake in crops. However, the driving mechanisms of Cd speciation change on the vertical scale of paddy fields remain poorly understood.
Xiaodong Hao   +11 more
doaj   +1 more source

A complex speciation-richness relationship in a simple neutral model [PDF]

open access: yes, 2012
Speciation is the "elephant in the room" of community ecology. As the ultimate source of biodiversity, its integration in ecology's theoretical corpus is necessary to understand community assembly.
Elderkin, Mark F.   +10 more
core   +2 more sources

Little ecological divergence associated with speciation in two African rain forest tree genera [PDF]

open access: yes, 2011
Background: The tropical rain forests (TRF) of Africa are the second largest block of this biome after the Amazon and exhibit high levels of plant endemism and diversity.
Chatrou, Lars   +3 more
core   +4 more sources

Protracted speciation revitalizes the neutral theory of biodiversity. [PDF]

open access: yes, 2010
Understanding the maintenance and origin of biodiversity is a formidable task, yet many ubiquitous ecological patterns are predicted by a surprisingly simple and widely studied neutral model that ignores functional differences between species.
Allen   +53 more
core   +1 more source

Biogenic Ceria Nanoparticles (CeO2 NPs) for Effective Photocatalytic and Cytotoxic Activity

open access: yesBioengineering, 2020
Ceria nanoparticles (CeO2 NPs) are generally considered in various functional applications, such as catalysts in fuel cells, sensors, and antioxidant and oxidase-like enzymes in the biological environment.
Siripireddy Balaji   +3 more
doaj   +1 more source

Invasive species and biodiversity crises: testing the link in the late devonian. [PDF]

open access: yesPLoS ONE, 2010
During the Late Devonian Biodiversity Crisis, the primary driver of biodiversity decline was the dramatic reduction in speciation rates, not elevated extinction rates; however, the causes of speciation decline have been previously unstudied.
Alycia L Stigall
doaj   +1 more source

The existence of species rests on a metastable equilibrium between inbreeding and outbreeding [PDF]

open access: yes, 2011
Background: Speciation corresponds to the progressive establishment of reproductive barriers between groups of individuals derived from an ancestral stock.
Etienne Joly
core   +2 more sources

Geographic range size and speciation in honeyeaters

open access: yesBMC Ecology and Evolution, 2022
Background Darwin and others proposed that a species’ geographic range size positively influences speciation likelihood, with the relationship potentially dependent on the mode of speciation and other contributing factors, including geographic setting ...
Eleanor M. Hay   +2 more
doaj   +1 more source

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