Treesearch

Polyploidization is becoming an increasingly important subject in ecology and invasion biology. To date, the role of polyploidy in the success of species invasions remains unclear. Here, we explore the associations between ploidy levels and seed size, reproductive mode, life form, time after introduction and range size of non-native plants introduced to North America, and whether polyploidization is related to invasion success.Using data on 1804 non-native plant species in continental North America with information on chromosome numbers, we conducted comparative, correlation and regression...

Previous studies have compared various eco‐physiological aspects among C 3 , C 4 , and Crassulacean Acid Metabolism (CAM) plants, mostly using native species. The variation in key genetic and life‐history traits and their distribution among non‐native plants with the three photosynthetic pathways remains poorly understood. Here, we examine whether the photosynthetic pathways of non‐native plants in North America are linked to several major species traits and their current distributions. Location: North America.We collate genetic and life‐history data on chromosome number (ploidy levels),...

1. Stewardship is broadly defined as ‘universal responsibility of humanity to care for the planet, to ensure that it can continue to provide the essential natural resources for life’. Stewardship practices shape ecosystems, create diverse biocultural landscapes, and can enhance the productivity, availability and health of plants used by Indigenous Peoples for traditional foods, fibres and medicines.2. In this paper, we argue that care is one key component that differentiates Indigenous stewardship from other forms of resource management and has the potential to cross cultural and institutio...

The COVID-19 pandemic introduced unprecedented volatility into the US manufactured wood products market, with the price of softwood lumber nearly quadrupling within a year, reaching its highest level since 1995. This paper examines the substantial price fluctuations in major wood products, focusing on Spruce-Pine-Fir and Southern Yellow Pine softwood lumber, as well as Oriented Strand Board sheathing. Using vector autoregressive and vector error correction models, this study investigates the relationships between wood product prices and various macroeconomic factors. The analysis reveals...

Corrigendum (April 2026): Incorrect units of measure on table A-42 (thousand dry tons) were replaced with the correct units of measure (thousand cubic feet).This publication provides authoritative updates to the Nation’s forest resource statistics reported in “Forest Resources of the United States, 2017” and the 2020 Resources Planning Act (RPA) Assessment using adapted Forest Inventory and Analysis data. Resource data tables present estimates of forest area, volume, mortality, growth, removals, timber products output, and more in various ways within the context of changes since 1953.Downlo...

Giant reed ( Arundo donax ) has invaded biologically diverse riparian ecosystems in warm and arid regions globally, yet its impacts on wildlife are still poorly understood. Resolving the multi-taxa, scale-explicit impacts of giant reed in the broader context of the riparian vegetation mosaics that support wildlife can help target ecological restoration efforts. We quantified effects of giant reed and other dominant riparian vegetation on bird and butterfly habitat occupancies at two spatial scales along the Rio Grande in west Texas, USA. Birds and butterflies are diverse in riparian...

Pine (Pinus spp.) forests are found in many areas with a wide range of bioclimates, providing a myriad of ecosystem services. Pine trees have been widely planted for various purposes such as commercial timber production, soil erosion control and water quality improvement of source waters, urban forestry, wildlife habitat, and bioenergy for carbon sequestration. Quantifying these benefits requires a clear understanding of the hydrological cycle in pine forests, especially the evapo-transpiration processes. This synthesis study aims at synthesizing published litera-ture documenting the water...

Urban forests have been widely recognized as a nature-based solution to address urban environmental changes like urban heat islands. Although previous studies have explored the cooling effects of urban forests, the extent of this effect and related influencing factors remain unclear and have not been comprehensively synthesized yet. To fill this research gap, we conducted a systematic literature review using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) method with 20 keywords and their combinations in Web of Science to address 3 main research questions:...

Over the last half‐century, land use changes, including deforestation, urban sprawl, and open‐pit surface mining, have accelerated across the Susurluk Basin in northwestern Türkiye. This study analysed how land use changes, damming and mining activities affected basin hydrology using empirical and analytical methods and the process‐based Water Supply Stress Index Model (WaSSI). The monthly WaSSI water balance model was validated using streamflow data from gaging stations between 1980 and 2005. Two of the eight subbasins exhibited streamflow reductions of about 32%–42%, with mean annual...

Extreme precipitation events, intensified by climate change, are increasingly disrupting nutrient dynamics in large river systems worldwide. Beyond altering the magnitude of individual nutrient fluxes, extreme precipitation may fundamentally reshape nutrient composition and stoichiometric balances, with critical implications for aquatic ecosystem health. Here, we apply an integrated data-model framework to assess how these events have altered nitrogen (N) and phosphorus (P) fluxes across the Mississippi River Basin from 1980 to 2018. We find that extreme rainfall disproportionately...