10 Dec 2025

Seasonal color shifts and genetic diversity in Scots pine: a generalizable RGB imaging and CNN-based framework for conifer seedlings

Key message Leveraging affordable red-green-blue (RGB) imaging and neural network algorithms, this study delivers a high-throughput method to quantify seasonal color shifts and genetic variation in Scots pine seedlings. Hue-saturation-brightness (HSB) color analysis, and RGB values can be used
10 Dec 2025

From clear-cuts to nature reserves: saproxylic beetle diversity and deadwood availability in Norway spruce (Picea abies L.) stands in southern Sweden

Key message  Norway spruce (Picea abies L.)-dominated production forests in southern Sweden had a significantly lower amount of deadwood and saproxylic beetle diversity compared to similar nature reserves, especially with regard to red-listed species. The species composition of
10 Dec 2025

Sawing yield estimation of defective logs in Olea europaea L., Robinia pseudoacacia L., and Castanea sativa Mill. species growing in Southern Italy

Key message This study assessed sawmill efficiency for olive (Olea europaea L.), black locust (Robinia pseudoacacia L.), and chestnut (Castanea sativa Mill.) logs in Southern Italy evaluating the impacts of taper, ovality, sweep, and fluting defects on sawing yield. Taper
9 Dec 2025

National Forest Inventory in Italy: new perspectives for forest monitoring

Key message  Natural and anthropogenic pressures, combined with frequent extreme events driven by climate change, are altering the dynamics of forest ecosystems. As a result, social needs, forest policies, and forest management require precise and reliable information
9 Dec 2025

Size-dependent behavioral and antennal responses to doses of (+)-isopinocamphone and 1,8-cineole mixed with pheromone: a potential host selection strategy in female Ips typographus L

Key message  This study revealed differing behavioral and antennal responses between large and small female Ips typographus to two bioactive oxygenated monoterpenoids, ( +)-isopinocamphone and 1,8-cineole, which serve contrasting ecological roles as aggregation pheromone synergist and inhibitor.
9 Dec 2025

Variation in leaf economics spectrum between plant functional types and the coordination with vein density in a subtropical urban forest of Eastern China

Key message  Evergreen and deciduous species in a subtropical urban forest of Eastern China exhibit pronounced differences in leaf traits, with evergreens species showing lower photosynthetic rate on a leaf mass basis and leaf nutrient contents, but
9 Dec 2025

Historical insecticide applications for the treatment of forest insect pests from 1968 to 2017, in Nova Scotia and Newfoundland and Labrador, Canada

Key message  The geospatial dataset describes large-scale applications of insecticides to forests from 1968 to 2017 in the provinces of Newfoundland and Labrador (NL) and Nova Scotia (NS), Canada. The data was assembled to provide a historical
8 Dec 2025

Water-based root exudates of Molinia caerulea (L.) Moench disrupt root nitrogen metabolism in Quercus petraea (Matt.) Liebl. seedlings with a fast negative effect on budburst

Key message Molinia caerulea (L.) Moench has been observed to significantly reduce budburst in Quercus petraea (Matt.) Liebl. seedlings through water-based M. caerulea root exudates. This suggests direct allelopathic effects between the two species. In terms of nutrient uptake, oak roots primarily
8 Dec 2025

Identification of ash-associated understorey diversity—a lesson from historical vegetation records

Key message  Forest communities historically dominated by common ash (Fraxinus excelsior L.) were characterized by particularly high species richness in the understorey and included a distinct set of vascular plant species statistically associated with higher ash cover. These
5 Dec 2025

Outbreaks of European spruce bark beetle dramatically altered Norway spruce-dominated stands with implications for volant wildlife in the Białowieża Forest, Poland

Key message  An outbreak of the European spruce bark beetle (Ips typographus L.) in spruce (Picea abies L.) dominated forest stands in the Białowieża Forest, Poland, has led to fundamental changes in forest characteristics. The species composition of regenerating stands