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File ECMAScript program WLFW-GWWA Project Boundary Shapefiles
by Bridgett Costanzo — published Mar 17, 2021 — last modified Apr 09, 2024 03:39 PM — filed under: , , ,
This map of the outer project boundary for the partnership excludes 3 states within the species range in Appalachia that declined to participate due to staff shortages and competing priorities. The image shows the WLFW-GWWA project boundary on a national map of WLFW partnership geographies.
Located in Information Materials / Maps & Data / Maps
File FY21 WLFW-GWWA Project Boundary
by Bridgett Costanzo — published Jun 25, 2023 — last modified Apr 21, 2025 06:28 PM — filed under: , , , , , ,
Updated to include new priority areas in NY.
Located in Information Materials / Maps & Data / Maps
Thinning Forests to Save the Birds
by Bridgett Costanzo — published Mar 17, 2021 — last modified Jun 25, 2023 10:59 PM — filed under: , ,
An interesting and informative 8-minute video that explains how tree harvests are critical to saving a host of bird species that rely on young forest habitat for part of their annual life cycle.
Located in Information Materials / Multimedia
Managing for Healthy, Diverse Forests
by Bridgett Costanzo — published Mar 17, 2021 — last modified Jun 25, 2023 10:59 PM — filed under: ,
How to manage for both wildlife habitat and timber value in Eastern forests by conducting responsible forest harvests that take the longer-term view instead of quick cash-outs. Up to 80% of the forests in Eastern States have experienced repeated "high-grade" or "diameter-limit" harvests that remove only the most valuable trees during each harvest, diminishing forest economics in the region and depleting wildlife.
Located in Information Materials / Multimedia
Birds of a Feather on Working Lands
by Bridgett Costanzo — published Mar 17, 2021 — last modified Jun 25, 2023 11:01 PM — filed under: , ,
Storyboard discusses similarities between habitat needs of the Eastern golden-winged warbler and Western sage grouse, both bird species with declining populations due to habitat loss in working landscapes - but benefiting from NRCS Working Lands for Wildlife intervention.
Located in Information Materials / Multimedia
Capture of GWWA on Nonbreeding Grounds
by Kristin Bomboy — published Mar 17, 2021 — last modified Jun 25, 2023 11:03 PM — filed under: , ,
While studying migratory birds on their Costa Rican wintering grounds in March 2017, associates at the Roger Tory Peterson Institute of Natural History (RTPI) were able to add some important data to the understanding of Golden-wing Warbler biology. RTPI affiliate Sean Graesser, who was working in a remote rainforest reserve in northeastern Costa Rica with other RTPI staff on a tropical biology course for high school students, captured a gorgeous male Golden-winged Warbler. When he extracted it from the net to collect data and band it, he realized that this bird already had a uniquely numbered band on its leg – a band that Sean had put there himself a year ago! Since the bird was last seen in March of 2016, it had flown to North America – likely somewhere in that upper Great Lakes Region area, possibly nested and raised young against all odds, and returned to Costa Rica to overwinter. This bird looked healthy as could be and was getting ready to make the same trek again – possibly travelling as far as 6,000 miles each year between its breeding and wintering grounds.
Located in Information Materials / Multimedia
Image Oak Regeneration
by Josselyn Lucas — published Feb 21, 2023 — last modified Jun 25, 2023 11:03 PM — filed under: , , ,
Competing species in the white oak range are shading out young white oaks thus preventing regeneration, resulting in a non-sustainable demographic dominated by older trees. Dr. Jeff Larkin is a professor of Wildlife Ecology and Conservation at IUP, as well as the Forest Bird Habitat Coordinator for the American Bird Conservancy. He says: it's just as important for landowners and forest managers to 'look down' as it is to 'look up' when it comes to oak forest management and stewardship. These photos, taken by Dr. Larkin, demonstrate white oak regeneration within the forest understory.
Located in Information Materials / Multimedia
Oak Regeneration
by Josselyn Lucas — published Feb 24, 2023 — last modified Nov 03, 2023 09:34 PM — filed under: , , , ,
Competing species in the white oak range are shading out young white oaks thus preventing regeneration, resulting in a non-sustainable demographic dominated by older trees. Dr. Jeff Larkin is a professor of Wildlife Ecology and Conservation at IUP, as well as the Forest Bird Habitat Coordinator for the American Bird Conservancy. He says: it's just as important for landowners and forest managers to 'look down' as it is to 'look up' when it comes to oak forest management and stewardship. These photos, taken by Dr. Larkin, demonstrate white oak regeneration within the forest understory.
Located in Information Materials / Multimedia
File text/texmacs Decision Support Tools to Inform the Rehabilitation and Management of High Graded Forests
by Josselyn Lucas — published Feb 15, 2023 — filed under: , , , , , ,
Abstract Numerous forests in the eastern United States have been degraded due to past exploitative timber harvesting known as high grading. High graded forest stands may not improve without active re- habilitation and may require targeted silvicultural treatments. This study focuses on high graded mixed-oak (mixed-Quercus spp.) stands and aims to develop a model that can identify past high grading and to determine modifications that may improve forest management recommendations provided by the prominent decision support tool, SILVAH. We present a model that uses standard forest inventory measurements and does not require knowledge of preharvest stand conditions to predict with moderate to high accuracy whether a stand was high graded, which could be par- ticularly useful for nonindustrial private forests. Results indicate that modifications to SILVAH may be necessary to improve its utility for prescribing silvicultural treatments in high graded stands. Study Implications: High graded forest stands are often not readily apparent and likely require specific forest management practices. We present a tool that uses standard forest inventory meas- urements to predict past high grading, which can be used to inform and prioritize forest manage- ment decisions. We also present suggested modifications to the prominent decision support tool, SILVAH, that may improve its ability to prescribe optimal silvicultural treatments for high graded stands. Results from this study provide forestry professionals/landowners working in the mixed- oak forests of the northeastern United States with tools to inform forest management decisions that aim to return degraded stands to healthier and more productive states.
Located in Information Materials / Research / WLFW Outcomes: Funded Research
File Seeing past the green: Structure, composition, and biomass differences in high graded and silviculture-managed forests of similar stand density
by Josselyn Lucas — published Feb 15, 2023 — last modified Feb 24, 2023 02:45 PM — filed under: , , , , , , , , , , ,
Forests of the eastern United States (US) mostly comprise a mix of stands managed following silvicultural principles and stands managed with exploitative timber harvesting practices. These stands can have similar stand densities (e.g., basal area per hectare) but vary vastly in structure, composition, and biomass and carbon storage. High grading, a prevalent exploitative timber harvesting practice in the eastern US, is of particular concern because it can negatively affect future forest health and productivity. This study quantifies differences in forest structure, composition, and biomass and carbon storage between high graded stands and stands that received a seed/establishment cut of a uniform shelterwood regeneration sequence treatment, which is a comparable and well-established silvicultural method used to regenerate mixed-oak forests. It focuses on mixed-oak forests (mixed-Quercus), where the effects of high grading have been understudied, and uses a sample with broader spatial coverage than previous studies. The sample comprised nine stands that were known to have been high graded 8–15 years ago and nine stands that received the seed/establishment cut of a uniform shelterwood regeneration sequence. Stand were systematically sampled using fixed-area plots. Field measurements were collected and used to calculate metrics describing forest structure and function. The structure of high graded stands was characterized by a higher proportion of trees with poor health and/or form compared to shelterwood stands, with 18.3 % less acceptable growing stock and trees with lower crown compaction. Diameter distributions of high graded stands were characterized by numerous small trees and few large-diameter trees. Spatial variability of overstory trees was contingent on the tree size range evaluated, with a larger variability of sawtimber-sized trees (trees ≥ 29.2 cm in diameter at breast height) in high graded stands. High graded stands also had 2.2 times fewer oak trees (Quercus spp.) in the overstory canopy, 17,897 fewer seedlings per hectare (ha), and 45 Mg/ha less biomass than shelterwood stands. These results indicate that high grading generally degrades mixed-oak forests and impairs their long-term capacity to supply vital ecosystem services such as habitat for specific wildlife species, carbon storage, and high-quality wood products.
Located in Information Materials / Research / WLFW Outcomes: Funded Research