Results 61 to 70 of about 68,334 (285)

Within‐tree spatial heterogeneity of sap flow velocities and wood properties and its effect on the uncertainty of tree level sap flux estimates

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
As forests are important for biodiversity and recreation and provide vital resources globally, it is essential that their health can be accurately monitored, for example, by using sap flow probes to measure tree water uptake. We investigated whether sap flow measurements might differ at various locations within the same tree due to variation in wood ...
Stefan Seeger   +2 more
wiley   +1 more source

When alien plants become health hazards: An applied study on toxic and allergenic risks in Italy

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Alien plants are often studied for their ecological harm, but their risks to human and animal health remain poorly documented. This study provides the first comprehensive catalogue of poisonous and allergenic alien plants in Italy, identifying which species are dangerous, where they grow and who is most at risk—from children in city parks to pets and ...
Giulio Barone   +3 more
wiley   +1 more source

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin   +5 more
wiley   +1 more source

Future atmospheric CO2 leads to delayed autumnal senescence

open access: yes, 2007
Growing seasons are getting longer, a phenomenon partially explained by increasing global temperatures. Recent reports suggest that a strong correlation exists between warming and advances in spring phenology but that a weaker correlation is evident ...
BIRGIT GIELEN   +34 more
core   +1 more source

Host genotype shapes the foliar fungal microbiome of balsam poplar (Populus balsamifera) [PDF]

open access: yes, 2013
Foliar fungal communities of plants are diverse and ubiquitous. In grasses endophytes may increase host fitness; in trees, their ecological roles are poorly understood.
Fankhauser, Johnathon D.   +23 more
core   +1 more source

Evaluation of susceptibility poplar species and clones (Populus spp.) against two poplar key pests; Monsteira unicostata and Melanophila picta in Hamadan province [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران
Monosteira unicostata (Mulsant & Rey.) (Poplar lace bug) and Melanophila picta Pall. (Poplar wood borer) are significant pests of poplar and willow trees in Hamadan province.
Alireza Rajabi Mazhar   +1 more
doaj   +1 more source

Ce que disent les mots. Nommer la ville lusitanienne

open access: yesGaia, 2020
In the territories conquered in the early Empire, the juridical hierarchy of civic communities appears in the context of the administrative prouinciae reorganization.
Susana Marcos
doaj   +1 more source

Synthetic Imagery Improves Ecological Classification When Real Data Are Scarce, Not Direct Substitutes

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Image generation models can create synthetic ecological datasets and potentially alleviate limitations from sparse real data. Using 20 tree genera across community‐science and street‐view imagery, we tested whether synthetic images could replace or supplement real data for image classification.
Thomas A. Lake   +3 more
wiley   +1 more source

The Class I HD-ZIP transcription factor PagHB7a functions as a positive regulator of salt tolerance in Populus

open access: yesForestry Research
Homeodomain leucine zipper (HD-ZIP) proteins are plant-specific transcription factors that play important roles in plant development and abiotic responses. In our previous study, the PagHB7a gene was identified, which belongs to the Class I HD ZIP family,
Bowen Zhou   +6 more
doaj   +1 more source

Born to die: pack and population level estimates of wolf pup survival and recruitment in the Greater Voyageurs Ecosystem

open access: yesWildlife Biology, EarlyView.
Wolf pup Canis lupus survival is a key driver of wolf population dynamics that remains poorly understood, especially in forested systems, because wolf pups are difficult to monitor. We used a combination of pup counts at dens and remote camera observations to estimate annual survival and recruitment of wolf pups in the Greater Voyageurs Ecosystem, MN ...
Andrea Hynes   +4 more
wiley   +1 more source

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