Results 11 to 20 of about 971,459 (303)

The alpine scrubs and dwarf heaths of the Balkan Peninsula - an exceptional center of floristic richness and endemism [PDF]

open access: yesBotanica Serbica, 2023
Alpine scrubs (Roso pendulinae-Pinetea mugo) and dwarf heaths (Loiseleurio procumbentis-Vaccinietea) are an exceptional assemblage of rich floristic units which contribute significantly to the overall diversity on the Balkan Peninsula.
Tijana Ilić   +3 more
doaj   +1 more source

Soil heterogeneity in the horizontal distribution of microplastics influences productivity and species composition of plant communities

open access: yesFrontiers in Plant Science, 2022
Contamination of soils by microplastics can have profound ecological impacts on terrestrial ecosystems and has received increasing attention. However, few studies have considered the impacts of soil microplastics on plant communities and none has tested ...
Xiao-Mei Zhang   +9 more
doaj   +1 more source

Risk Preferences Under Heterogeneous Environmental Risk [PDF]

open access: yesSSRN Electronic Journal, 2012
We study risk preferences and their determinants for commercial cattle farmers in Namibia who are subject to high and heterogeneous precipitation risk, using data from questionnaire and field experiments, simulated data for on-farm precipitation risk and data on famers’ previous place of residence. We find that the relationship between risk preferences
Olbrich, Roland   +3 more
openaire   +6 more sources

Phenotypic Plasticity and Parental Effect on Rearing of Two Diverse Habitat Environment for Laboratory Reared Sympetrum Meridionale

open access: yesJournal of Bioresource Management, 2021
Laboratory observations on rearing experiment of Odonata serve to answer many evolutionary and ecological questions. In order to evidences the role of species parental habitat provenience in the development behaviour of their offspring, we surveyed ...
Imane Halassi   +4 more
doaj   +1 more source

The influence of environmental heterogeneity on the morphological and genetic diversity of Circaea lutetiana (Onagraceae) in Hyrcanian forests

open access: yesAnales del Jardín Botánico de Madrid, 2021
Environmental gradients are important factors that can potentially influence the genetic diversity and differentiation of populations. The present study examines the effect of environmental heterogeneity of the Hyrcanian forests on populations of Circaea
Sedigheh Nikzat   +2 more
doaj   +1 more source

The Bogert Effect and environmental heterogeneity [PDF]

open access: yesOecologia, 2019
A classic question in evolutionary biology is whether behavioral flexibility hastens or hinders evolutionary change. The latter idea, that behavior reduces the number of environmental states experienced by an organism and buffers that organism against selection, has been dubbed the "Bogert Effect" after Charles Bogert, the biologist who first ...
Michael L. Logan   +2 more
openaire   +2 more sources

Earthworms Modulate Impacts of Soil Heterogeneity on Plant Growth at Different Spatial Scales

open access: yesFrontiers in Plant Science, 2021
Soil heterogeneity (uneven distribution of soil nutrients and/or other properties) is ubiquitous in nature and can greatly affect plant growth. As earthworm activity can influence nutrient redistribution in the soil, we hypothesize that earthworms may ...
Michael Opoku Adomako   +7 more
doaj   +1 more source

Heterogeneous Catalysis for Environmental Remediation [PDF]

open access: yesCatalysts, 2017
The intensive human activities in chemical industry and environmental purification urge the development of advanced protocols for green production and waste management. [...]
Xiaoguang Duan, Shaobin Wang
openaire   +2 more sources

Environmental heterogeneity can tip the population genetics of range expansions

open access: yeseLife, 2019
The population genetics of most range expansions is thought to be shaped by the competition between Darwinian selection and random genetic drift at the range margins.
Matti Gralka, Oskar Hallatschek
doaj   +1 more source

Active matter clusters at interfaces.

open access: yesFrontiers in Materials, 2016
Collective and directed motility or swarming is an emergent phenomenon displayed by many self-organized assemblies of active biological matter such as clusters of embryonic cells during tissue development, cancerous cells during tumor formation and ...
Katherine eCopenhagen, Ajay eGopinathan
doaj   +1 more source

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