Treesearch

Snapping Turtles are the largest turtles found in Wisconsin. They can be identified by their large body, wide head (with hooked upper jaw), long thick legs and tail, and brown, tan, or olive-green coloration.

Residential yards are a significant component of urban socio-ecological systems; residential land covers 11% of the United States and is often the dominant land use within urban areas. Residential yards also play an important role in the sustainability of urban socio-ecological systems, affecting biogeochemical cycles, water and the climate via individual- and household-level behaviours. Spatial contagion has been observed in yard vegetation in several cities, potentially due to social norms that compel neighbours to emulate or conform to specific aesthetic qualities or management regimes....

Over the past decade, there has been a dramatic increase in the availability of consumer-grade hardware and software for three-dimensional (3D) object creation (Sargent and Schwartz 2019), reducing barriers for this technology to become widely used for education and research in the biological sciences. Digital 3D models can serve as educational tools for species identification training and can increase the value of museum specimens for research by providing remote access to view specimen characteristics, such as for morphometric studies (Falkingham et al. 2018; Irschick et al. 2020a;...

This resource update is a brief look at some of the basic metrics that describe the status of and changes to forest resources in Wisconsin. This information is based on field data collected using the USDA Forest Service Forest Inventory and Analysis (FIA) annualized sample design, and it is updated yearly. Tables for Forests of Wisconsin, 2021 can be found at https://doi.org/10.2737/FS-RU-364-Tables. The FIA one-click application that generated this report can be found at https://doi.org/10.2737/FIA-One-Click-State-Report-v1.2.

This resource update is a brief look at some of the basic metrics that describe the status of and changes to forest resources in Vermont. This information is based on field data collected using the USDA Forest Service Forest Inventory and Analysis (FIA) annualized sample design, and it is updated yearly. Tables for Forests of Vermont, 2021 can be found at https://doi.org/10.2737/FS-RU-373-Tables. The FIA one-click application that generated this report can be found at https://doi.org/10.2737/FIA-One-Click-State-Report-v1.2.

This resource update is a brief look at some of the basic metrics that describe the status of and changes to forest resources in West Virginia. This information is based on field data collected using the USDA Forest Service Forest Inventory and Analysis (FIA) annualized sample design, and it is updated yearly. Tables for Forests of West Virginia, 2021 can be found at https://doi.org/10.2737/FS-RU-375-Tables. The FIA one-click application that generated this report can be found at https://doi.org/10.2737/FIA-One-Click-State-Report-v1.2.

This resource update is a brief look at some of the basic metrics that describe the status of and changes to forest resources in Pennsylvania. This information is based on field data collected using the USDA Forest Service Forest Inventory and Analysis (FIA) annualized sample design, and it is updated yearly. Tables for Forests of Pennsylvania, 2021 can be found at https://doi.org/10.2737/FS-RU-381-Tables. The FIA one-click application that generated this report can be found at https://doi.org/10.2737/FIA-One-Click-State-Report-v1.2.

Cycling of carbon (C), nitrogen (N), calcium (Ca), phosphorus (P), and sulfur (S) is an important ecosystem service that forest soils provide. Humans influence these biogeochemical processes through the deposition of atmospheric pollutants and site disturbances. One way to study these potential anthropogenic trajectories is through long-term monitoring in association with human-caused environmental gradients such as urban-rural gradients. The objective of this study was to characterize changes in surface soil chemistry of urban, suburban and rural forest patches in the Baltimore Metropolita...

This study assesses the impacts of whole-tree harvesting (WTH) versus stem-only harvest (SOH) on two oak-dominated stands located in Northern Wisconsin. Specifically, our study follows up on an experiment designed to better understand the impacts of WTH and whether stands are at risk of long-term nutrient losses, which could contribute to declines in productivity. The original study assessed: (i) full biomass removal (referred to as WTH), (ii) partial biomass removal (removal to 5 cm diameter bole), (iii) a traditional SOH (removal to 10 cm bole), and (iv) no harvest (control). Our data...

Understanding the forest carbon cycle has become increasingly important as carbon dioxide (CO2) emissions contribute to the changing climate. Decomposition is a major component of the forest carbon cycle; however, aspects of wood decomposition remain poorly understood, especially for stumps. To fill this knowledge gap, we examined the change in CO2 emissions over time from Picea rubens Sarg. (red spruce) stumps using a 32-year chronosequence (i.e., 0, 2, 4, 8, 23, and 32 years since harvest) derived from detailed harvesting records in a northern conifer forest in central Maine, USA, that...