Results 1 to 10 of about 472,649 (308)

When are hypotheses useful in ecology and evolution?

open access: yesEcology and Evolution, 2021
Research hypotheses have been a cornerstone of science since before Galileo. Many have argued that hypotheses (1) encourage discovery of mechanisms, and (2) reduce bias—both features that should increase transferability and reproducibility.
Matthew G. Betts   +16 more
doaj   +1 more source

Knockout of floral and meiosis genes using CRISPR/Cas9 produces male‐sterility in Eucalyptus without impacts on vegetative growth

open access: yesPlant Direct, 2023
Eucalyptus spp. are widely cultivated for the production of pulp, energy, essential oils, and as ornamentals. However, their dispersal from plantings, especially when grown as an exotic, can cause ecological disruptions.
Michael F. Nagle   +11 more
doaj   +1 more source

Preliminary results of European budworm Choristoneura murinana (Hubner) impact on Greek fir radial growth at Mts Parnassus and Giona

open access: yesFolia Oecologica, 2022
During the spring of 2020, Choristoneura murinana (Hubner) otherwise European Fir Budworm (EFB) was recorded on Abies cephalonica near the villages of Kaloskopi and Agoriani in Central Greece at the mountains Giona and Parnassus respectively.
Petrakis Panos V.   +3 more
doaj   +1 more source

Impacts of monoculture cropland to alley cropping agroforestry conversion on soil N2O emissions

open access: yesGCB Bioenergy, 2023
Monoculture croplands are a major source of global anthropogenic emissions of nitrous oxide (N2O), a potent greenhouse gas that contributes to ozone depletion. Agroforestry has the potential to reduce N2O emissions.
Guodong Shao   +6 more
doaj   +1 more source

Local forest structure variability increases resilience to wildfire in dry western U.S. coniferous forests. [PDF]

open access: yes, 2020
A 'resilient' forest endures disturbance and is likely to persist. Resilience to wildfire may arise from feedback between fire behaviour and forest structure in dry forest systems.
Fick, Stephen E   +4 more
core   +2 more sources

Comparison of calculation methods for estimating annual carbon stock change in German forests under forest management in the German greenhouse gas inventory

open access: yesCarbon Balance and Management, 2016
Background The German greenhouse gas inventory in the land use change sector strongly depends on national forest inventory data. As these data were collected periodically 1987, 2002, 2008 and 2012, the time series on emissions show several “jumps” due to
Steffi Röhling   +6 more
doaj   +1 more source

Declines in Common and Migratory Breeding Landbird Species in South Korea Over the Past Two Decades

open access: yesFrontiers in Ecology and Evolution, 2021
Population declines in terrestrial bird species have been reported across temperate regions in the world and are attributed to habitat loss, climate change, or other direct mortality sources.
Hankyu Kim   +7 more
doaj   +1 more source

Public Perceptions of the Socioeconomic Importance of Urban Green Areas in the Era of COVID-19: A Case Study of a Nationwide Survey in Greece

open access: yesLand, 2022
Considering the emerging challenges posed by the spread of COVID-19, this study was designed to evaluate citizens’ perceptions of the role of urban green areas in the era of COVID-19 in Greece.
Antonios Kolimenakis   +12 more
doaj   +1 more source

Conversion of tropical forests to smallholder rubber and oil palm plantations impacts nutrient leaching losses and nutrient retention efficiency in highly weathered soils [PDF]

open access: yesBiogeosciences, 2018
Conversion of forest to rubber and oil palm plantations is widespread in Sumatra, Indonesia, and it is largely unknown how such land-use conversion affects nutrient leaching losses. Our study aimed to quantify nutrient leaching and nutrient retention
S. Kurniawan   +7 more
doaj   +1 more source

Micrometeorological and Hydraulic Properties of an Urban Green Space on a Warm Summer Day in a Mediterranean City (Attica–Greece)

open access: yesLand, 2022
Urban Green Spaces (UGSs) are considered the most effective tool to mitigate Urban Heat Islands (UHIs). The optical properties of the materials and the vegetation types of the UGSs affect their surface temperatures, directly influencing their cooling ...
Nikolaos D. Proutsos   +3 more
doaj   +1 more source

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