Results 51 to 60 of about 36,944 (324)

Interactive effect of herbivory and competition on the invasive plant Mikania micrantha. [PDF]

open access: yesPLoS ONE, 2013
A considerable number of host-specific biological control agents fail to control invasive plants in the field, and exploring the mechanism underlying this phenomenon is important and helpful for the management of invasive plants.
Junmin Li   +3 more
doaj   +1 more source

Assessment of defoliation and subsequent growth losses caused by Lymantria dispar using terrestrial laser scanning (TLS) [PDF]

open access: hybrid, 2022
Martin Jacobs   +7 more
openalex   +1 more source

Near-Real-Time Monitoring of Insect Defoliation Using Landsat Time Series

open access: yes, 2017
Introduced insects and pathogens impact millions of acres of forested land in the United States each year, and large-scale monitoring efforts are essential for tracking the spread of outbreaks and quantifying the extent of damage. However, monitoring the
Valerie J. Pasquarella   +2 more
semanticscholar   +1 more source

Edaphic effects on forest structure and tree species composition in three seasonally dry tropical forest types in Cambodia

open access: yesNordic Journal of Botany, EarlyView.
Soil conditions are critical factors shaping forest structure and tree species composition in seasonally dry tropical forests (SDTFs); however, few studies have evaluated edaphic effects in Cambodia's unique lowland forest landscape, where different forest types coexist under similar climatic conditions.
Thav Sopheak   +4 more
wiley   +1 more source

The Effects of Limitation of Source and Sink on Yield and Yield Components of

open access: yesپژوهشهای زراعی ایران, 2011
In order to study the effect of limitation of source and sink on yield and yield components of cumin, an experiment was conducted in complete randomized block design in Research Field of Agriculture Faculty of Ferdowsi University of Mashhad during the ...
M. Kafi, H. R. Khazae, S. Sabouri rad
doaj   +1 more source

Partial defoliation of Brachypodium distachyon plants grown in petri dishes under low light increases P and other nutrient levels concomitantly with transcriptional changes in the roots [PDF]

open access: yesPeerJ, 2019
Background There have been few studies on the partial defoliation response of grass. It has been unclear how partial defoliation may affect roots at the levels of nutrient accumulation and transcriptional regulation.
Wei Wang   +9 more
doaj   +2 more sources

Forest defoliation scenarios

open access: yesMathematical Biosciences and Engineering, 2007
We consider the mathematical model originally created by Ludwig, Jones, and Holling to model the infestation of spruce forests in New Brunswick by the spruce budworm. With biologically plausible parameter values, the dimensionless version of the model contains small parameters derived from the time scales of the state variables and smaller parameters ...
openaire   +3 more sources

Resource limitation and competition shape reproductive allocation and synchrony

open access: yesOikos, EarlyView.
The dynamics of reproductive allocation (RA) in herbaceous plant communities, particularly in response to varying environmental conditions such as drought stress and competitive interactions, remain underexplored. This study aims to fill this gap by hypothesising that both belowground resource limitation and the presence of dominant species ...
Jan Douda   +2 more
wiley   +1 more source

Environmental Impact of Silicic Magmatism in Large Igneous Province Events

open access: yesGeophysical Monograph Series, Page 133-151., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley  

+1 more source

Overexploitation can counteract top‐down control and the paradox of enrichment in simple food chains

open access: yesOikos, EarlyView.
Because of its high abundance or its high feeding intensity, a consumer can overexploit its resource by consuming it on a shorter timescale than resource regeneration. While this short‐term overexploitation is widespread in nature, its general implications for biotic control patterns and ecosystem stability are not clear.
Josquin Guerber   +2 more
wiley   +1 more source

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