Treesearch

This chapter is a review and synthesis of research conducted at Tenderfoot Creek Experimental Forest (TCEF) on biological responses to stream nutrients. It is intended to inform national and regional water quality regulatory agencies, such as the U.S. Environmental Protection Agency and the Montana Department of Environmental Quality (DEQ), about existing results of relevant scientific studies that are available at TCEF, and to identify future field and synthetic research of potential use to regulatory agencies that might be conducted at TCEF.

This chapter synthesizes environmental monitoring and studies performed at Sagehen Experimental Forest (SHEF) that are relevant to water quality regulatory agencies and suggests research needs of importance to regulators that might be met at SHEF.

This chapter is a review and synthesis of research conducted at Fraser Experimental Forest (FEF) on stream chemical nutrients, contributing factors, and biological responses to them. It is intended to inform national and regional water quality regulatory agencies, such as the U.S. Environmental Protection Agency (USEPA) and the Colorado Department of Public Health and Environment (CDPHE), about existing results of relevant scientific studies that are available at FEF, and to identify future field and synthetic research of potential use to regulatory agencies that might be conducted at FEF.

The Olympic Experimental State Forest (OESF) covers more than 110 000 ha on the western Olympic Peninsula in the state of Washington. The forest consists of state trust lands that are administered by Washington Department of Natural Resources (WADNR). The OESF is a working forest, managed to produce commercial timber sustainably and to provide ecological values, such as biodiversity and long-term site productivity. The OESF has an additional mandate, unlike other state trust lands in western Washington, to experiment with innovative land management practices and to put the research results...

Element biogeochemistry in streams has a long record of study at Hubbard Brook Experimental Forest (HBEF) corresponding to the studies of watershed element cycling. Much of these studies focused on how streams control nutrient transport and storage. Although fewer HBEF studies have addressed how nutrients control stream processes than at some other experimental forests and ranges (EFRs) and long-term ecological research (LTER) sites (Benstead et al. 2009, Davis et al. 2010, Rosemond et al. 2015, Slavik et al. 2004), some studies at HBEF have addressed nutrient or cation enrichment (Hall et...

This chapter is a review and synthesis of research on stream nutrients from the H.J. Andrews Experimental Forest (HJA) located in the western Cascade Mountains of Oregon. This research includes studies, some of which originated in the 1960s, in streams through reference forests and harvested watersheds. In addition to providing foundational information for researchers and managers, the information in this chapter serves to inform national and regional water quality regulatory agencies about results of relevant scientific studies at HJA. The chapter also identifies questions of potential...

Determining the demographic impacts of wildlife disease is complex because extrinsic and intrinsic drivers of survival, reproduction, body condition, and other factors that may interact with disease vary widely. Mycoplasma ovipneumoniae infection has been linked to persistent mortality in juvenile bighorn sheep (Ovis canadensis), although mortality appears to vary widely across subspecies, populations, and outbreaks. Hypotheses for that variation range from interactions with nutrition, population density, genetic variation in the pathogen, genetic variation in the host, and other factors....

Data from satellite instruments provide estimates of gas and particle levels relevant to human health, even pollutants invisible to the human eye. However, the successful interpretation of satellite data requires an understanding of how satellites relate to other data sources, as well as factors affecting their application to health challenges. Drawing from the expertise and experience of the 2016–2020 NASA HAQAST (Health and Air Quality Applied Sciences Team), we present a review of satellite data for air quality and health applications. We include a discussion of satellite data for...

We quantified the population dynamics and life history diversity of seven brood years of coho salmon (Oncorhynchus kisutch) using a life-cycle approach. Four life history patterns, composed of fry, fry–nomad, parr, and yearling migrants indicated the importance of connectivity and access to a full range of freshwater and estuarine rearing environments through the year. Survival of each life history type varied annually with the yearling migrants contributing an average of 70% to the spawners in all but one return year. Fifty-eight percent of the spawners of the 2013 return year had an...

Long distance trails offer distinctive opportunities for people to connect with natural and cultural heritage through recreation, tourism, and stewardship. Such connections can lead to broad support for conservation goals. In the United States, National Scenic Trails (NSTs) promote community engagement in trail planning, development, maintenance, and management. Governance of these multi-jurisdictional trails occurs through a diverse array of governmental and non-governmental actors. We conducted interviews (n=17) with federal trail administrators and non-governmental trail organizations...