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Landscape with Beavers
In this paper, the elephant in the room is the issue of projected longer-term population growths and declines in a finite world, while the Greek goddess Panacea is the opportunity to non-disruptively attain populations that live sustainably and solve some of the world’s most pressing problems. Particularly addressed in this paper is the potential of water systems models and modeling to facilitate a transition to planning for long-term sustainable lives of sustained quality. Anent “longer term”, for simplicity we consider both a typical period of family memory, for instance from 1880 to 2100, or 220 years, about seven or eight generations, as well as the anthropocene millenia. After setting down background definitions and introducing the underlying issues, we review key population and well-being trends, attitudes, and impacts, citing acknowledged experts. How, where, and when population and economic decline will occur is not covered; the paper rather suggests implications for water resources engineering and for water management modeling, even if the transition will be patchy in space and time. Confronting imminent degrowth, significant revisions of current water modeling practice are suggested: planned, phased, orderly removal of projected and existing urban development and drainage infrastructure and, for instance and where applicable, systematic restoration of keystone ecology and natural hydrology. Whether the imminent degrowth era will persist is uncertain, evidently. Also alluded to is degrowth’s countervailing assurance of improved well-being, providing more time for individuals to further their personal interests. The original PowerPoint presentation is at Robillynians.org and also at the CHI website (James 2023). Questions raised and the answers given at the presentation are included in the appendix to this paper.
In the hydrological cycle, runoff precipitation is one of the most significant and complex phenomena. In order to develop and improve predictive models, different perspectives have been presented in its modeling. Hydrological processes can be confidently modeled with the help of artificial intelligence techniques. In this study, the runoff of the Leilanchai watershed was simulated using artificial neural networks (ANNs) and M5 model tree methods and their hybrid with wavelet transform. Seventy percent of the data used in the train state and thirty percent in the test state were collected in this watershed from 2000 to 2021. In addition to daily and monthly scales, simulated and observed results were compared within each scale. Initially, the rainfall and runoff time series were divided into multiple sub-series using the wavelet transform to combat instability. The resultant subheadings were then utilized as input for an ANN and M5 model tree. The results demonstrated that hybrid models with wavelet improved the ANN model's daily accuracy by 4% and its monthly accuracy by 26%. It also improved the M5 model tree's daily and monthly accuracy by 4% and 41%. The wavelet-M5 model's accuracy does not diminish to the same degree as the wavelet-ANN (WANN) model as the forecast horizon lengthens. Consequently, the Leilanchai watershed has a relatively stable behavior pattern. Finally, hybrid models, in conjunction with the wavelet transform, improve forecast accuracy.
The Low-Tech Process Based Restoration of Riverscapes Pocket Guide is an illustrated and condensed version of the Design Manual (http://lowtechpbr.restoration.usu.edu). The pocket guide is designed to fit in your pocket (4 x 6") to use as a reference in the field.
In summer 2018, the Sharps Fire burned major portions of the Baugh Creek Watershed in central Idaho. Prior to the Sharps Fire a stream restoration project was planned for lower Baugh Creek. Following the fire, the project was expanded to include two additional streams in the lower watershed and to address the risks posed post-fire, as well as identify and take advantage of additional restoration opportunities the fire presented. This report combines field surveys, remote sensing and geospatial analysis to provide context for restoration planning in order to enable the efficient development and implementation of restoration. We use multiple lines of evidence, including information on geomorphic condition, riparian condition and beaver dam capacity to identify and plan restoration within the project area. We identify stream reaches that are in intact/good, moderate and poor condition and identify how low-tech restoration structures can be used in order to both mitigate against potential post-fire risk as well as take advantage of post-fire restoration opportunities.
Del Tredici, P. 2014. The flora of the future. In: C. Reed and N.-M. Lister (eds.) Projective Ecologies, pp. 198-217. Actar Press and Harvard Graduate School of Design, New York.
Beaver have been referred to as ecosystem engineers because of the large impacts their dam building activities have on the landscape; however, the benefits they may provide to fluvial fish species has been debated. We conducted a watershed-scale experiment to test how increasing beaver dam and colony persistence in a highly degraded incised stream affects the freshwater production of steelhead (Oncorhynchus mykiss). Following the installation of beaver dam analogs (BDAs), we observed significant increases in the density, survival, and production of juvenile steelhead without impacting upstream and downstream migrations. The steelhead response occurred as the quantity and complexity of their habitat increased. This study is the first large-scale experiment to quantify the benefits of beavers and BDAs to a fish population and its habitat. Beaver mediated restoration may be a viable and efficient strategy to recover ecosystem function of previously incised streams and to increase the production of imperiled fish populations.
This chapter provides an overview of the evolution of the beaver as a single organism. The beaver is the second largest rodent after the South American capybara. Beavers belong to the family Castoridae in the suborder Sciuromorpha of the order Rodentia. Thy are more closely related to squirrels and marmots than to mouselike rodents (Muridae). Beavers split from their closest living relatives 90–100 million years ago. Two species of beaver live today: the North American Castor canadensis and the Eurasian Castor fier. The two beaver species differ in their number of chromosomes. This chapter discusses the beaver's genetics and geographic range, as well as fossils that illuminate its ancestry.
7,635 50,723 Doña Ana
- ........................................ . Horses
- .......... . Donkeys
Horses.............................................
7,635
50,723 Doña Ana, McKinley, Rio Arriba, San Juan
Llamas & Alpacas............................
253
2021 Bernalillo, Santa Fe, San Juan
Mules, Burros, & Donkeys...............
798
1,860 Colfax, McKinley, San Juan, Valencia
Turkeys............................................
220
6,425 Not published
Plant Life: ‘The Practice of Working Together
- Rosetta S Elkin
Eager: The Surprising, Secret Life of Beavers and Why They Matter
- Ben Goldfarb
The Beaver Manifesto (Rocky Mountain Books
- Glynnis Hood
The Beaver Restoration Guidebook: Working with Beaver to Restore Streams, Wetlands, and Floodplains, Version 2.01
- Michael Pollock
Distance and Engagement: Walking, Thinking and Making Landscape
- Alice Foxley