Using Foraging Dynamics To Answer Landscape Management Questions
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Author | : Amy Colleen Ulappa |
Publisher | : |
Total Pages | : 165 |
Release | : 2015 |
Genre | : |
ISBN | : |
Black-tailed deer (Odocoileus hemionus columbianus) and other forest herbivores depend on abundant and nutritious understory vegetation found in open-canopy and young, early-seral forests. Forage management activities such as logging, thinning and using silvicultural herbicides have the potential to alter the quality and quantity of forage available to herbivores. Therefore, I compared nutrient intake and estimated nutritional carrying capacity of black-tailed deer between stands that received herbicide treatments paired with those that did not in Douglas-fir/western hemlock forests of western Washington, and investigated how these responses change as forests age from early seral stages to canopy closure (2 -- 20 years post-harvest). I measured understory vegetation biomass, plant species nutritional quality, and overstory characteristics of each forest stand. Additionally, I measured diet composition, diet quality and nutrient intake of tractable black-tailed deer within each paired stand. I found that herbicide use decreased the amount of understory biomass useable for foraging deer and decreased their daily digestible energy intake, especially in the first 3 years of stand establishment. Even so, early seral habitat, regardless of herbicide use, provided more forage and higher daily energy intake for deer than closed canopy stands (14 yrs +) or mid-seral stands. Using data from these experiments, I also investigated how the resolution of data collection (e.g., plants vs. plant parts) influences estimates of plant selection and nutritional carrying capacity, and how well measures of forage abundance and quality predict nutrient intake of black-tailed deer. I found that treating plant parts (i.e., stems and leaves) as separate food items did not influence how plant species were categorized as selected, neutral or avoided, but increased estimates of nutritional carrying capacity. In addition, measures of forage resources that included both biomass and quality or selection status by deer better predicted daily digestible energy intake of tractable black-tailed deer.
Author | : Nova J. Silvy |
Publisher | : Johns Hopkins University Press |
Total Pages | : 1401 |
Release | : 2020-07-28 |
Genre | : Science |
ISBN | : 1421436698 |
This deft and thorough update ensures that The Wildlife Techniques Manual will remain an indispensable resource, one that professionals and students in wildlife biology, conservation, and management simply cannot do without.
Author | : R. Terry Bowyer |
Publisher | : Frontiers Media SA |
Total Pages | : 308 |
Release | : 2021-06-28 |
Genre | : Science |
ISBN | : 2889669106 |
Author | : Colleen Ortwine-Boes |
Publisher | : |
Total Pages | : 236 |
Release | : 2003 |
Genre | : |
ISBN | : |
Author | : Sarah E. Gergel |
Publisher | : Springer Science & Business Media |
Total Pages | : 323 |
Release | : 2006-04-18 |
Genre | : Science |
ISBN | : 0387216138 |
Filled with numerous exercises this practical guide provides a real hands-on approach to learning the essential concepts and techniques of landscape ecology. The knowledge gained enables students to usefully address landscape- level ecological and management issues. A variety of approaches are presented, including: group discussion, thought problems, written exercises, and modelling. Each exercise is categorised as to whether it is for individual, small group, or whole class study.
Author | : Monica G. Turner |
Publisher | : Springer Science & Business Media |
Total Pages | : 420 |
Release | : 2003-05-20 |
Genre | : Technology & Engineering |
ISBN | : 9780387951232 |
An ideal text for students taking a course in landscape ecology. The book has been written by very well-known practitioners and pioneers in the new field of ecological analysis. Landscape ecology has emerged during the past two decades as a new and exciting level of ecological study. Environmental problems such as global climate change, land use change, habitat fragmentation and loss of biodiversity have required ecologists to expand their traditional spatial and temporal scales and the widespread availability of remote imagery, geographic information systems, and desk top computing has permitted the development of spatially explicit analyses. In this new text book this new field of landscape ecology is given the first fully integrated treatment suitable for the student. Throughout, the theoretical developments, modeling approaches and results, and empirical data are merged together, so as not to introduce barriers to the synthesis of the various approaches that constitute an effective ecological synthesis. The book also emphasizes selected topic areas in which landscape ecology has made the most contributions to our understanding of ecological processes, as well as identifying areas where its contributions have been limited. Each chapter features questions for discussion as well as recommended reading.
Author | : J Ludwig |
Publisher | : CSIRO PUBLISHING |
Total Pages | : 225 |
Release | : 1996-11-01 |
Genre | : Science |
ISBN | : 0643102663 |
This book encapsulates the extensive knowledge developed by CSIRO's National Rangelands Program on how rangeland landscapes function and the implications for management. It looks at the ecology of rangeland landscape processes and deals with what happens when things go wrong, when a landscape loses its ability to efficiently capture and store water and nutrients - a state the authors call dysfunctional.Ways of managing rangelands in response to understanding landscape function are also considered. The concluding Section looks to the future providing some scenarios for the way rangeland landscapes may be used in 2020.
Author | : David Bohan |
Publisher | : Academic Press |
Total Pages | : 458 |
Release | : 2021-12-04 |
Genre | : Science |
ISBN | : 0323915043 |
The Future of Agricultural Landscapes, Part III, Volume 65 in the Advances in Ecological Research serial, highlights new advances in the field, with this update including contributions from an international board of authors who cover Designing farmer-acceptable rotations that assure ecosystem service provision in the face of climate change, Building a shared vision of the future for multifunctional agricultural landscapes: Lessons from a Long Term Socio-Ecological Research site in south-western France, Vineyard landscapes and biocontrol, Pollinators, Next generation biomonitoring, Diversification of botanical resources in landscapes, Conflict resolution in agricultural landscapes, Addressing the Unanswered Questions in landscape-moderated biodiversity and ecosystem functioning, and more. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Advances in Ecological Research series - Updated release includes the latest information on the Future of Agricultural Landscapes
Author | : United States. Congress. House. Committee on Natural Resources. Subcommittee on Public Lands and Environmental Regulation |
Publisher | : |
Total Pages | : 72 |
Release | : 2014 |
Genre | : Nonindigenous pests |
ISBN | : |
Author | : T. W. Hoekstra |
Publisher | : University of Illinois Press |
Total Pages | : 298 |
Release | : 1999 |
Genre | : Nature |
ISBN | : 9780252067174 |
Offers various directions for both research and management.