Results 11 to 20 of about 362,096 (260)

Effects of Habitat Heterogeneity and Topographic Variation on Insect Pest Risks in Alpine Regions

open access: yesLand, 2023
Insect pests pose a significant threat to alpine ecosystems, especially under rapid environmental change conditions. Therefore, it is necessary to explore the effects of environmental factors on insect pest risks and provide methods for pest management ...
Lei Wang   +4 more
doaj   +1 more source

Habitat associations of woody plant species in evergreen–deciduous broadleaf karst forests in southwest China

open access: yesFrontiers in Ecology and Evolution, 2023
The effects of habitat filtering on community assembly have been extensively researched, and topography has been identified as a critical factor influencing the spatial distribution of trees. In this study, a 25-ha plot was established in karst evergreen–
Liang Su   +14 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

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

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

ENVIRONMENTAL HETEROGENEITY ENHANCES CLONAL INTERFERENCE [PDF]

open access: yesEvolution, 2008
Clonal interference (CI) is a phenomenon that may be important in several asexual microbes. It occurs when population sizes are large and mutation rates to new beneficial alleles are of significant magnitude. Here we explore the role of gene flow and spatial heterogeneity in selection strength in the adaptation of asexuals.
Paulo R A, Campos   +3 more
openaire   +2 more sources

EFFECTS OF ENVIRONMENTAL HETEROGENEITY ON VICTIM-EXPLOITER COEVOLUTION [PDF]

open access: yesEvolution, 2008
We study victim-exploiter coevolution in a spatially heterogeneous island model. In each species, fitness consequences of between-species interactions are controlled by a single haploid diallelic locus. Our emphasis is on the conditions for the maintenance of genetic variation, the dynamic patterns observed, the extent of local adaptation and genetic ...
Gavrilets, S., Michalakis, Yannis
openaire   +3 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

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

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