Restoring Western Ranges and Wildlands

Total Page:16

File Type:pdf, Size:1020Kb

Restoring Western Ranges and Wildlands United States Department of Agriculture Restoring Western Forest Service Rocky Mountain Research Station General Technical Ranges and Wildlands Report RMRS-GTR-136-vol. 1 September 2004 Volume 1 Chapters 1–17, Index Abstract ______________________________________ Monsen, Stephen B.; Stevens, Richard; Shaw, Nancy L., comps. 2004. Restoring western ranges and wildlands. Gen. Tech. Rep. RMRS-GTR-136-vol-1. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. Pages 1-294 plus index. This work, in three volumes, provides background on philosophy, processes, plant materials selection, site preparation, and seed and seeding equipment for revegetating disturbed rangelands, emphasizing use of native species. The 29 chapters include guidelines for planning, conducting, and managing, and contain a compilation of rangeland revegetation research conducted over the last several decades to aid practitioners in reestablishing healthy communities and curbing the spread of invasive species. Volume 1 contains the first 17 chapters plus the index. Keywords: rehabilitation, revegetation, plant ecology, seed, plant communities, wildlife habitat, invasive species, equipment, plant materials, native plants A B A—Reseeding on the Boise River watershed, 1937. B—Rangeland drill. C—Elk on burned winter range. D—Sampling soil, north-central Nevada. E—Aerial seeding. Front covers on all three volumes: Desert Experimental Range Utah. Photo by John Kinney. Restoring Western Ranges and Wildlands Compilers Stephen B. Monsen Volume 1 Richard Stevens Nancy L. Shaw Chapters 1–17, index C D E i The Compilers _____________________________________ Stephen B. Monsen (retired), Botanist, U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Shrub Sciences Laboratory, Provo, Utah Richard Stevens, Project Leader (retired), Utah Division of Wildlife Resources, Great Basin Research Center, Ephraim, Utah Nancy L. Shaw, Research Botanist, U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Boise, Idaho The Authors _______________________________________ James N. Davis is Project Leader, Big Game Range Trend Program, Utah Division of Wildlife Resources, Shrub Sciences Laboratory, Provo, Utah. Sherel K. Goodrich is Ecologist, U.S. Department of Agriculture, Forest Service, Ashley National Forest, Vernal, Utah. Kent R. Jorgensen was Wildlife Biologist (deceased), Great Basin Research Center, Utah Division of Wildlife Resources, Ephraim, Utah. Carlos F. Lopez was Soil Scientist, U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Shrub Sciences Laboratory, Provo, Utah. E. Durant McArthur is Project Leader and Research Geneticist, U.S. Department of Agricul- ture, Forest Service, Rocky Mountain Research Station, Shrub Sciences Laboratory, Provo, Utah. Stephen B. Monsen was Botanist (retired), U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Shrub Sciences Laboratory, Provo, Utah. He is currently a private natural resources consultant and volunteer worker for the Rocky Mountain Research Station. David L. Nelson was Plant Pathologist (retired), U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Shrub Sciences Laboratory, Provo, Utah. He continues contractual and volunteer work for the Rocky Mountain Research Station. Nancy L. Shaw is Research Botanist, U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Boise, Idaho. Richard Stevens was Project Leader (retired), Great Basin Research Center, Utah Division of Wildlife Resources, Ephraim, Utah. Arthur R. Tiedemann was Project Leader and Range Scientist (retired), U.S. Department of Agriculture, Rocky Mountain Research Station, Shrub Sciences Laboratory, Provo, Utah. John F. Vallentine was Professor (Emeritus), Department of Integrative Biology, Brigham Young University, Provo, Utah. Gordon A. Van Epps was Associate Professor (retired), Snow Field Station, Utah Agricultural Experiment Station, Utah State University, Ephraim, Utah. Bruce L. Welch is Plant Physiologist, U.S. Department of Agriculture, Rocky Mountain Research Station, Shrub Sciences Laboratory, Provo, Utah. Steven G. Whisenant is Professor, Department of Rangeland Ecology and Management, Texas A&M University, College Station, Texas. G. Richard Wilson was Director (retired), Utah State Seed Laboratory, Utah Department of Agriculture, Salt Lake City, Utah. ii Foreword E. Durant McArthur, Project Leader, Shrubland Biology and Restoration Research Work Unit, Rocky Mountain Research Station, Shrub Sciences Laboratory, Provo, Utah Restoring Western Ranges and Wildlands has had a literature of the Science Citation Index during the past fairly long gestation period. The final product of three several decades (ISI Web of Science, online). volumes had its beginnings in 1983. At that time I sat with a group of administrators and researchers research administrators of the Intermountain Forest in a 1983 meeting in the conference room of the Shrub and Range Experiment Station (now part of the Rocky Sciences Laboratory in Provo, Utah, as we laid out Mountain Research Station) had obtained funding plans for writing and compiling Restoring Western from the Four Corners Regional Commission (FCRC) Ranges and Wildlands by subject areas and possible to produce a series of research summary syntheses to contributors. The lead compilation roles in the effort aid agriculture and natural resource values and man- were assigned to Stephen B. Monsen, by this time a agement for the Four Corner States (Arizona, Colo- Botanist with the Intermountain Forest and Range rado, New Mexico, and Utah) and surrounding areas. Experiment Station, and Richard Stevens, Project The FCRC, now defunct, was formed in 1965 as one of Leader of the Habitat Restoration Unit of the Utah five Federal regional commissions to aid regional Department of Natural Resources, Division of Wildlife development in economically distressed areas. Restor- Resources. Steve and Richard also took on major ing Western Ranges and Wildlands was intended to writing assignments. But delaying the publishing supplant the successful, out-of-print, Restoring Big date were continuing research assignments, other Game Range in Utah (Plummer and others 1968) with demands on the compilers’ time, a shift in revegetation a broader geographic coverage and new knowledge philosophy toward holistic landscape management gained during the intervening years. Restoring Big and emphasis on using native plants, and retirement Game Range in Utah was published by the Utah of both Steve Monsen and Richard Stevens. A third Department of Natural Resources, Division of Fish compiler was added to the team—Nancy L. Shaw, a and Game. The authors, in addition to A. Perry Research Botanist on the Shrubland Biology and Res- Plummer (a Project Leader and Range Scientist for the toration Research Work Unit posted in Boise, Idaho. Intermountain Forest and Range Experiment Sta- She worked tirelessly to see the project completed. All tion), were Division of Fish and Game Biologists Donald three compilers deserve kudos for completion of this R. Christensen and Stephen B. Monsen. The three massive project. were part of an integrated Federal and State workgroup Many people have helped the authors and compilers lead by Mr. Plummer and located at the Great Basin complete this work. I extend appreciation to dozens of Research Center in Ephraim, Utah (for additional reviewers of the individual chapters but especially to details see McArthur 1992). This volume served land Robert B. Ferguson, retired Scientist from the Inter- managers well. There are many dog-eared copies in mountain Forest and Range Experiment Station, and offices and libraries in Utah and elsewhere around the the late Homer D. Stapley, Scientist, from the Utah West. It has been cited many times in peer-reviewed Division of Wildlife Resources, who each reviewed iii most of the manuscript. The manuscript was initially Nancy Chadwick, Lillie Thomas, Loa Collins, and prepared on several computer hardware and accompa- Suzy Stephens, performed exceedingly well in editing, nying software word processing systems. The prepara- integration, layout, and design. Many of the line draw- tion and integration of the manuscript was facilitated ings of plant species that are on the chapter introduc- by Pat Ford, Nancy Clark, and Roberta Leslie of the tory pages and illustrate the species in chapters 20 Shrub Sciences Laboratory, and Scott Walker, Nalisa and 21 were prepared by Rocky Mountain Research Bradley, and Chris Wade of the Utah Divison of Technician Annielane J. Yazzie. Wildlife Resources, Great Basin Research Center in This work represents the continuing collaboration of Ephraim, Utah. Others who contributed to the project the Rocky Mountain Research Station and the Utah include Rocky Mountain Research Station employees Division of Wildlife Resources. Both organizations who worked on indexing (Jan Gurr), reference compi- contributed materially to publication costs including lation (Karl Soerensen and Felicia Martinez), and support from the Federal Pittman Robertson W-82-R proofreading and general assistance (James Hall, Jim Project for wildlife habitat restoration. Other substan- Spencer, Darren Naillon, Kelly Memmott, Gary tial support came from the Forest Service State and Jorgensen, Melissa Scholten, Danielle Scholten, John Private Forestry National Fire Plan, Bureau of Land Kinney, Ann DeBolt, Matthew
Recommended publications
  • Basics of Management - Intensive Grazing Stephen K
    Proceedings of the Integrated Crop Management Proceedings of the 10th Annual Integrated Crop Conference Management Conference Nov 18th, 12:00 AM Basics of Management - Intensive Grazing Stephen K. Barnhart Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/icm Part of the Agriculture Commons, and the Agronomy and Crop Sciences Commons Barnhart, Stephen K., "Basics of Management - Intensive Grazing" (1998). Proceedings of the Integrated Crop Management Conference. 28. https://lib.dr.iastate.edu/icm/1998/proceedings/28 This Event is brought to you for free and open access by the Conferences and Symposia at Iowa State University Digital Repository. It has been accepted for inclusion in Proceedings of the Integrated Crop Management Conference by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. BASICS OF MANAGEMENT -INTENSIVE GRAZING Stephen K. Barnhart Agronomist-Extension Forage Programs Department of Agronomy Iowa State University. What Is Management-Intensive Grazing ? Management-intensive grazing is a method for regulating how often and how much to graze in order to control the quality, yield, consumption, and persistence of forage from pasture. Managed grazing attempts to optimize animal performance or limit intake to a desired level and reduce wasted forage. Depending on the grazing methods used, the amount of fresh pasture provided, the amount of forage eaten, and its quality is regulated by the size of pasture area being grazed, the duration of that grazing, and the amount of the available forage allowed for grazing. Also critical is the period that each pasture is rested between grazings.
    [Show full text]
  • Predation by Gray Catbird on Brown Thrasher Eggs
    March 2004 Notes 101 PREDATION BY GRAY CATBIRD ON BROWN THRASHER EGGS JAMES W. RIVERS* AND BRETT K. SANDERCOCK Kansas Cooperative Fish and Wildlife Research Unit, Division of Biology, Kansas State University, Manhattan, KS 66506 (JWR) Division of Biology, Kansas State University, Manhattan, KS 66506 (BKS) Present address of JWR: Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106 *Correspondent: [email protected] ABSTRACT The gray catbird (Dumetella carolinensis) has been documented visiting and breaking the eggs of arti®cial nests, but the implications of such observations are unclear because there is little cost in depredating an undefended nest. During the summer of 2001 at Konza Prairie Bio- logical Station, Kansas, we videotaped a gray catbird that broke and consumed at least 1 egg in a brown thrasher (Toxostoma rufum) nest. Our observation was consistent with egg predation because the catbird consumed the contents of the damaged egg after breaking it. The large difference in body mass suggests that a catbird (37 g) destroying eggs in a thrasher (69 g) nest might risk injury if caught in the act of predation and might explain why egg predation by catbirds has been poorly documented. Our observation indicated that the catbird should be considered as an egg predator of natural nests and that single-egg predation of songbird nests should not be attributed to egg removal by female brown-headed cowbirds (Molothrus ater) without additional evidence. RESUMEN El paÂjaro gato gris (Dumetella carolinensis) ha sido documentado visitando y rompien- do los huevos de nidos arti®ciales, pero las implicaciones de dichas observaciones no son claras porque hay poco costo por depredar un nido sin defensa.
    [Show full text]
  • Livestock and Landscapes
    SUSTAINABILITY PATHWAYS LIVESTOCK AND LANDSCAPES SHARE OF LIVESTOCK PRODUCTION IN GLOBAL LAND SURFACE DID YOU KNOW? Agricultural land used for ENVIRONMENT Twenty-six percent of the Planet’s ice-free land is used for livestock grazing LIVESTOCK PRODUCTION and 33 percent of croplands are used for livestock feed production. Livestock contribute to seven percent of the total greenhouse gas emissions through enteric fermentation and manure. In developed countries, 90 percent of cattle Agricutural land used for belong to six breed and 20 percent of livestock breeds are at risk of extinction. OTHER AGRICULTURAL PRODUCTION SOCIAL One billion poor people, mostly pastoralists in South Asia and sub-Saharan Africa, depend on livestock for food and livelihoods. Globally, livestock provides 25 percent of protein intake and 15 percent of dietary energy. ECONOMY Livestock contributes up to 40 percent of agricultural gross domestic product across a significant portion of South Asia and sub-Saharan Africa but receives just three percent of global agricultural development funding. GOVERNANCE With rising incomes in the developing world, demand for animal products will continue to surge; 74 percent for meat, 58 percent for dairy products and 500 percent for eggs. Meeting increasing demand is a major sustainability challenge. LIVESTOCK AND LANDSCAPES SUSTAINABILITY PATHWAYS WHY DOES LIVESTOCK MATTER FOR SUSTAINABILITY? £ The livestock sector is one of the key drivers of land-use change. Each year, 13 £ As livestock density increases and is in closer confines with wildlife and humans, billion hectares of forest area are lost due to land conversion for agricultural uses there is a growing risk of disease that threatens every single one of us: 66 percent of as pastures or cropland, for both food and livestock feed crop production.
    [Show full text]
  • Debris the Science and Changing Perceptions of Dead Trees by Alexander Evans and Robert Perschel
    An Appreciation of Debris The Science and Changing Perceptions of Dead Trees By Alexander Evans and Robert Perschel oarse woody debris. To most people, two Coarse woody debris (CWD) is wood in the forest that’s no of the three words in that phrase have longer part of a living tree. Rather than being dead, this wood negative connotations. Debris is the worst is an important source of life in the forest. Foresters who value offender, suggesting random junk strewn it for its ecological functions have been searching for new terms about. When the debris is coarse, it’s even for CWD, and you’ll hear it referred to as biomass, dead wood, worse – it’s unrefined, it’s big. coarse woody material, and even retained organic matter. VIRGINIA BARLOW 44 Northern Woodlands / Winter 2008 Harry Dwyer, a forester in Fayette, Maine, likens the lan- as a seed bed for trees and plants, a mulch layer, and a slow- guage predicament to that of another formerly maligned mate- release fertilizer. Decomposing fungi depend on dead wood for rial: garden waste. He said, “You could look at a pile of rotting nutrients and moisture, and in turn many trees rely on mutu- vegetables as garbage, or you could note its value and call it alistic relationships with mycorrhizal fungi. Nitrogen fixation compost.” Digging into a rotten log in his woodlot, Dwyer in CWM by microbes (both anaerobic and microaerophyllic displays some of the dark, wet material in his hand. “It doesn’t bacteria) provides this important element in both terrestrial matter what you call this – coarse woody debris, coarse woody and aquatic ecosystems.
    [Show full text]
  • Hog Pastures and Conservation Compliance
    Illinois Grazing Manual Fact Sheet GRAZING MANAGEMENT Hog Pastures and Conservation Compliance General Information Significant problems exist in meeting conservation compliance requirements for livestock producers. These include high intensity grazing of hogs on forages in rotation with row crops, grazing crop residues, and manure injection of HEL fields. Swine pasture trials have been conducted to learn more about the interrelationships of pasture species selection, seeding rate, stocking density, grass stand (plants per sq. ft.), and per cent ground cover. These trials have networked the experience, knowledge, and skills of pro-active swine producers, the Natural Resources Conservation Service and University of Illinois Extension. Initial trials were seeded in the spring of 1992 utilizing alfalfa and grass mixtures. The grass species included were: 1) Tetraploid perennial ryegrass, 2) Matua Rescuegrass, 3) low endophyte Tall Fescue, and 4) Orchardgrass. These trial plots were intensively grazed and evaluated during 1993 with a mean stocking rate of 11.6 sows and litter per acre. Grass stands and % cover was evaluated throughout the year. Results indicated that tetraploid perennial ryegrass exhibited a very vigorous growth habit and was able to withstand high levels of grazing and trampling. It maintained higher levels of ground cover throughout the season. Tall Fescue established well, exhibited high stand counts, and even with very high grazing intensity was able to maintain over until late in the season. Tall Fescue also reduced the seed cost per acre. The use of alfalfa-orchardgrass under high intensity use, held up through mid-season but declined rapidly to only 20% cover in the fall.
    [Show full text]
  • AN ABSTRACT of the THESIS of Douglas William Havlina for The
    AN ABSTRACT OF THE THESIS OF Douglas William Havlina for the degree of Master of Science in Rangeland Resources presented on January 27, 1995 Title: Fire Effects on Vegetation Diversity, Structure, and Successional Dynamics in Shrub-Steppe and Mixed Conifer Environments of the Hells Canyon, Idaho. Abstract approved: The effects of fire severity on post-fire succession and shrub demography were quantified in shrub-steppe grasslands and subalpine forests in the Hells Canyon of the Payette National Forest, Idaho. Following the 1988 Eagle Bar Fire, species frequency, community diversity, fire adaptations, and stand ages were quantified at 12 plots in burned and unburned forests. Pre-fire composition was dominated by Pseudotsuga menziesii, Pinus contorta, Abies grandis, and Abies lasiocarpa in the overstory. Pre- fire basal area ranged from 41 to 80 m 2 ha-1 . Pre-fire stand ages ranged from 71 years in Abies lasiocarpa forests to > 200 years in Pseudotsuga menziesii stands. Fire scenarios which were sampled consisted of: (1) complete stand-replacement fires; (2) partial stand- replacement fires; and (3) unburned forests (control). Partial stand-replacement forests were characterized by significantly higher mean species diversity and richness (H'=3.16, S=36) than complete stand-replacement (H'=2.78, S=27) or unburned forests (H=2.26, S=15). Vegetation preferentially established in burned areas along a gradient of fire severity according to adapted fire guilds. Single-storied forests dominated by Pinus contorta and Abies lasiocarpa typified stand-replacement fire scenarios, with mean ages ranging from 99 to 159 years corresponding to fire return intervals common in this type.
    [Show full text]
  • Abstracts from the 1999 Symposium
    UTAH I THE I DESERT TORTOISE COUNCIL ARIZONA NEVADA l I i I / + S v'LEI S % A|. w a CALIFORNIA PROCEEDINGS OF 1999 SYMPOSIUM DESERT TORTOISE COUNCIL PROCEEDINGS OF THE 1999 SYMPOSIUM A compilation of reports and papers presented at the twenty-fourth annual symposium of the Desert Tortoise Council, March 5-8, 1999 St. George, Utah PUBLICATIONS OF THE DESERT TORTOISE COUNCIL, INC. Members Non-members Proceedings of the 1976 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1977 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1978 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1979 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1980 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1981 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1982 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1983 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1984 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1985 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1986 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1987-91 Desert Tortoise Council Symposia $20,00 $20.00 Proceedings of the 1992 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1993 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1994 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1995 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1996 Desert Tortoise Council Symposium $10.00 $15.00 Proceedings of the 1997-98 Desert Tortoise Council Symposia $10.00 $15.00 Annotated Bibliog raphy of the Desert Tortoise, Gopherus agassizii $10.00 $15.00 Note: Please add $1.00 per copy to cover postage and handling.
    [Show full text]
  • Influence of Coarse Woody Debris on Seedlings and Saplings in A
    INFLUENCE OF COARSE WOODY DEBRIS ON SEEDLINGS AND SAPLINGS IN A PINUS PALUSTRIS WOODLAND by ALEXANDRA LOGAN JUSTIN L. HART, COMMITTEE CHAIR MATTHEW C. LAFEVOR ARVIND A.R. BHUTA A THESIS Submitted in partial fulfillment of the requirements for the degree of Master of Science in the Department of Geography in the Graduate School of The University of Alabama TUSCALOOSA, ALABAMA 2020 Copyright Alexandra Logan 2020 ALL RIGHTS RESERVED 2 ABSTRACT Coarse woody debris (CWD) has beneficial effects on plant growth and establishment. Longleaf pine (Pinus palustris Mill.) stands support relatively low amounts of CWD — 2 to 30 m3 ha-1. In April 2011, an EF3 tornado passed through the Oakmulgee Ranger District of the Talladega National Forest in the Fall Line Hills of Alabama. This disturbance resulted in the large addition of CWD to a longleaf pine woodland, and a rare opportunity to analyze how CWD can influence a managed, pine woodland. The goal of this study was to examine the effect of CWD on woody plant richness, density, and growth rate (quantified by height) in a longleaf pine woodland that experienced a catastrophic wind disturbance. A total of three 1 m2 quadrats were established against either side of a piece of CWD (> 3 m in length and ≥ 10 cm in diameter). Another quadrat was established at least 3 m away from the focal CWD piece. For each plot, the presence and height of every woody plant (< 5 cm dbh) were recorded. Sapling density, oak and hickory density, and organic matter were all found to be significantly higher in quadrats adjacent to CWD than away (all p < 0.05).
    [Show full text]
  • Forest Fragment Size and Microhabitat Effects on Palm Seed Predation
    BIOLOGICAL CONSERVATION 131 (2006) 1– 13 available at www.sciencedirect.com journal homepage: www.elsevier.com/locate/biocon Forest fragment size and microhabitat effects on palm seed predation Marina Fleurya,b,c,*, Mauro Galettib,c aLaborato´rio de Ecologia e Restaurac¸a˜ o Florestal (LERF), Escola Superior de Agricultura ‘‘Luiz de Queiroz’’, Universidade de Sa˜ o Paulo (ESALQ/USP), Brazil bLaborato´rio de Biologia da Conservac¸a˜ o, Grupo de Fenologia e Dispersa˜ o de Sementes, Departamento de Ecologia, Universidade Estadual Paulista (UNESP), C.P. 199, 13506-900, Rio Claro, Sa˜ o Paulo, Brazil cInstituto de Biologia da Conservac¸a˜ o (IBC), Av.P-13, 293, Rio Claro, SP, Brazil ARTICLE INFO ABSTRACT Article history: The establishment of plant species depends crucially on where the seeds are deposited. How- Received 11 January 2005 ever, since most studies have been conducted in continuous forests, not much is known about Received in revised form the effects of forest fragmentation on the maintenance of abiotic and biotic characteristics in 19 October 2005 microhabitats and their effects on seed survival. In this study, we evaluated the effects of for- Accepted 24 October 2005 est fragmentation on the predation upon the seeds of the palm Syagrus romanzoffiana in three Available online 3 April 2006 microhabitats (interior forest, forest edge and gaps) in eight fragments of semi-deciduous Atlantic forest ranging in size from 9.5 ha to 33,845 ha in southeastern Brazil. Specifically, Keywords: we examined the influence of the microhabitat structure, fauna and fragment size on the pat- Arecaceae tern of seed predation.
    [Show full text]
  • Metabolites from Nematophagous Fungi and Nematicidal Natural Products from Fungi As an Alternative for Biological Control
    Appl Microbiol Biotechnol (2016) 100:3799–3812 DOI 10.1007/s00253-015-7233-6 MINI-REVIEW Metabolites from nematophagous fungi and nematicidal natural products from fungi as an alternative for biological control. Part I: metabolites from nematophagous ascomycetes Thomas Degenkolb1 & Andreas Vilcinskas1,2 Received: 4 October 2015 /Revised: 29 November 2015 /Accepted: 2 December 2015 /Published online: 29 December 2015 # The Author(s) 2015. This article is published with open access at Springerlink.com Abstract Plant-parasitic nematodes are estimated to cause Keywords Phytoparasitic nematodes . Nematicides . global annual losses of more than US$ 100 billion. The num- Oligosporon-type antibiotics . Nematophagous fungi . ber of registered nematicides has declined substantially over Secondary metabolites . Biocontrol the last 25 years due to concerns about their non-specific mechanisms of action and hence their potential toxicity and likelihood to cause environmental damage. Environmentally Introduction beneficial and inexpensive alternatives to chemicals, which do not affect vertebrates, crops, and other non-target organisms, Nematodes as economically important crop pests are therefore urgently required. Nematophagous fungi are nat- ural antagonists of nematode parasites, and these offer an eco- Among more than 26,000 known species of nematodes, 8000 physiological source of novel biocontrol strategies. In this first are parasites of vertebrates (Hugot et al. 2001), whereas 4100 section of a two-part review article, we discuss 83 nematicidal are parasites of plants, mostly soil-borne root pathogens and non-nematicidal primary and secondary metabolites (Nicol et al. 2011). Approximately 100 species in this latter found in nematophagous ascomycetes. Some of these sub- group are considered economically important phytoparasites stances exhibit nematicidal activities, namely oligosporon, of crops.
    [Show full text]
  • Effects of Trail Traffic on Egg-Predation by Mammal Populations in the Monteverde Cloud Forest Preserve
    Effects of trail traffic on egg-predation by mammal populations in the Monteverde Cloud Forest Preserve. Karmen Scott Department of Environmental Science, University of Oregon ABSTRACT The effects of human traffic within trails on egg predation and predatory mammal compositions between heavily trafficked trails and secluded trails were studied at the Monteverde Cloud Forest Preserve. This study was able to find differences in egg-predatory mammal compositions between these two trail types by looking at teeth impressions in eggs made of plasticine. The main predator was found to be Nasura narica (common coati) who was involved in the majority of the egg predation events and the vast majority of the nests preyed upon were on the highly trafficked trail. There were only a few predation events from other mammals such as rodents and Cebus capucinus (white-faced monkey). In this case, the abundance of tourists have altered populations of a mesopredator, Nasua narica by providing a new food source for them (garbage and tourist‟s lunches) and by affecting the rarity of their predators (boas, cats and Tayras) whom steer-clear of human populated areas and therefore steer-clear of N. narica. This dualistic relationship acting on the population of N. narica makes for an increase in the carrying capacity and, hence, further predation. This imbalanced egg- predation by N. narica on tourist trails allocates the disruption of their prey populations. Studies of the impacts of tourism have important conservation implications because tourism can have a tremendous disturbance on structure and community function. RESUMEN Los efectos del tráfico humano en la depredación de huevos en los senderos y en las composiciones de las comunidades de mamíferos depredadores entre los senderos con mucho tránsito y los senderos recluidos fueron estudiados en La Reserva del Bosque Nuboso de Monteverde.
    [Show full text]
  • Grazing and Browsing Behavior, Grazing Management, Forage Evaluation and Goat Performance: Strategies to Enhance Meat Goat Production in North Carolina
    1 Grazing and Browsing Behavior, Grazing Management, Forage Evaluation and Goat Performance: Strategies to Enhance Meat Goat Production in North Carolina Jean-Marie Luginbuhl, Professor, J. Paul Mueller, Professor and Interim Dean of International Programs, James. T. Green, Jr., Professor Emeritus, Douglas S. Chamblee, Professor Emeritus, and Heather M. Glennon, Meat Goat Program Research Technician and PhD candidate College of Agriculture and Life Sciences, North Carolina State University Campus Box 7620, Raleigh NC 27695 ABSTRACT the use of high quality forage and browse and the Goats (Capra hircus hircus) offer an opportunity strategic use of expensive concentrate feeds. This can to more effectively convert pasture nutrients to be achieved by developing a year-round forage animal products as milk, meat and fiber which are program allowing for as much grazing as possible currently marketable and in demand by a growing throughout the year. segment of the US population. With the introduction of the Boer breed and the upgrading of meat-type Some people still believe that goats eat and do goats with Boer genetics, research focusing on well on low quality feed. Attempting to manage and forage evaluation, feeding strategies and the feed goats with such a belief will not lead to development of economical grazing systems was successful meat goat production. On pasture or urgently needed to meet the needs of this emerging rangeland, maximum goat gains or reproduction can industry. The first part of this paper focuses on the be attained by combining access to large quantities of quality forage that allow for selective feeding. description of grazing/browsing behavior of goats and grazing management, and grazing strategies such Goat Brazing/Browsing Behavior as control and strip grazing, differences between Goats are very active foragers, able to cover a control and continuous grazing, forward creep wide area in search of scarce plant materials.
    [Show full text]