Results 71 to 80 of about 73,746 (281)

The role of Alpine botanical gardens in integrating germplasm bank collections and mission

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
This study underscores the vital role of Alpine botanical gardens (ABGs) in safeguarding Europe's alpine biodiversity amid climate change and habitat loss. By acting as living laboratories and reservoirs of plant genetic resources, ABGs bridge ex situ and in situ conservation, supporting ecosystem resilience and informing restoration strategies.
Marco Canella   +19 more
wiley   +1 more source

Tree regeneration responds more to shade casting by the overstorey and competition in the understorey than to abundance per se [PDF]

open access: yes, 2019
Manipulating the overstorey is the key tool for forest managers to steer natural regeneration. Opening up the canopy does not only create favourable light conditions for tree seedling growth, but also for (competitive) understorey species.
Baeten, Lander   +3 more
core   +1 more source

Right tree, right place, right reason: Using knowledge exchange and research co‐design to explore current challenges and opportunities for sustainable urban forest management

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The urban forest provides important environmental and health and well‐being benefits to people living in cities. However, sustainable management of urban trees is challenging as they face interrelated pressures from the urban environment, pests and diseases and climate change.
Jill Edmondson   +24 more
wiley   +1 more source

Variations in pollen deposition of some plant taxa in Lublin (Poland) and in Skien (Norway)

open access: yesActa Agrobotanica, 2012
This paper analyses pollen deposition in Lublin (Poland) and Skien (Norway). The studies were conducted in the years 1999 and 2000 using the gravimetric method and a Durham sampler. The study results varied both between years and cities.
Krystyna Piotrowska
doaj   +1 more source

Phosphorus limitation of aboveground production in northern hardwood forests [PDF]

open access: yes, 2018
Forest productivity on glacially derived soils with weatherable phosphorus (P) is expected to be limited by nitrogen (N), according to theories of long-term ecosystem development.
Fahey, Timothy J.   +5 more
core   +2 more sources

Conservation status of species used in the UK herbal medicine industry

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Given the ongoing biodiversity crisis, sustainable use and management of medicinal plants is critical. We assessed the conservation status, threats and conservation actions of 298 species sold by UK suppliers to medical herbalists. We found that most species used are unevaluated, representing a gap in conservation knowledge, and of those with ...
Isabella Flowers   +2 more
wiley   +1 more source

Species-specific effects of elevated ozone on wetland plants and decomposition processes [PDF]

open access: yes, 2010
Seven species from two contrasting wetlands, an upland bog and a lowland rich fen in North Wales, UK, were exposed to elevated ozone (150 ppb for 5 days and 20 ppb for 2 days per week) or low ozone (20 ppb) for four weeks in solardomes.
Freeman, Chris   +2 more
core   +1 more source

Investigating boreal forest successional stages in Alaska and Northwest Canada using UAV‐LiDAR and RGB and a community detection network

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This study develops a novel application of UAV‐LiDAR and Red Green Blue (RGB) data and network analysis to enhance our understanding of boreal forest succession. The results indicate that tree height and spectral variables are the most influential predictors of plant functional type in random forest algorithms, and high overall accuracies were attained.
Léa Enguehard   +9 more
wiley   +1 more source

Hyperspectral species maps and LiDAR‐based structured population models show future forest fire frequency may compromise forest resilience

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Monitoring forest recovery from disturbances at scale requires tracking tree dynamics, yet traditional ground‐based approaches are resource‐intensive. We present a pipeline to parameterize integral projection models (IPMs) using LiDAR data and hyperspectral‐based species maps to assess post‐fire recovery across large, forested areas at the Caribou ...
Jessica McLean   +4 more
wiley   +1 more source

THE COMPOSITION OF TOTAL LIPID FRACTIONS AND FATTY ACIDS IN BUDS OF BIRCH SPECIES DURING BUD BREAK

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
In the process of bud break in downy birch Betula pubescens Ehrh., silver birch Betula pendula Roth, and Karelian birch Betula pendula var. carelica Merckl., total lipid (TL) content in buds varied within 27–45 % of absolute dry weight (a. d. w.).
Nadezhda Chernobrovkina   +2 more
doaj   +1 more source

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