scholarly journals Vegetation Communities of Zion National Park

1988 ◽  
Vol 12 ◽  
pp. 207-214
Author(s):  
Kimball Harper ◽  
Stewart Sanderson ◽  
E. McArthur ◽  
Joel Tuhy
Keyword(s):  
Vascular Plants ◽  
National Park ◽  
Habitat Preferences ◽  
Systematic Sampling ◽  
Exotic Plant ◽  
Exotic Plant Species ◽  
Basic Field ◽  
Zion National Park ◽  
Data Files ◽  
Access Data

The overall objectives of this study are to (1) provide a map of the current vegetation of Zion National Park (ZNP), (2) provide a listing of all vascular plants known for the Park, (3) list all rare, endangered and exotic plant species growing within the Park and describe the distribution and habitat preferences of each as fully as possible, (4) list representative locations for examples of undisturbed stands of each of the major vegetational types, and (5) present our basic field data to the Park on computer disks with software programs that will permit employees to access data files easily and systematically. These objectives are being satisfied through systematic sampling of the vegetation at 1.6 km intervals. Ideally, the samples should be taken at all section corners using cadastral survey maps, but some remote portions of the park have never been surveyed. As a consequence, we are using the Universal Transverse Mercator grid system for describing locations of all study plots.

scholarly journals Vegetation Communities of Zion National Park

1989 ◽  
Vol 13 ◽  
pp. 234-240
Author(s):  
Kimball Harper ◽  
Stewart Sanderson ◽  
E. McArthur
Keyword(s):  
National Park ◽  
Field Data ◽  
Habitat Preferences ◽  
Exotic Plant ◽  
Exotic Plant Species ◽  
Basic Field ◽  
Growing Seasons ◽  
Zion National Park ◽  
Data Files ◽  
Access Data

The overall objectives of this study are to (1) provide a map of the current vegetation of Zion National Park (ZNP), (2) provide a listing of all vascular plants known for the park, (3) list all rare, endangered, and exotic plant species growing within the park and describe the distribution and habitat preferences of each as fully as possible, (4) list representative locations for examples of undisturbed stands of each of the major vegetational types, and (5) present our basic field data to the park on computer disks with software programs that will permit employees to access data files easily and systematically. These objectives will be satisfied using field data collected in the growing seasons of 1987, 1988, and 1989 at 0.01 ha survey plots. Those plots were laid out at the intersections of a grid with intersections 1.6 km apart. Ideally, the samples should have been taken at all section corners using cadastral survey maps, but some remote areas in the park have not been surveyed. As a consequence, the Universal Tranverse Mercator grid system is used as the reference system for describing plot locations. A total of slightly over 310 survey plots have been sampled in the park.

scholarly journals Vegetation Communities of Zion National Park

1987 ◽  
Vol 11 ◽  
pp. 191-196
Author(s):  
Kimball Harper ◽  
Stewart Sanderson ◽  
E. McArthur
Keyword(s):  
National Park ◽  
Habitat Preferences ◽  
Data Retrieval ◽  
Systematic Sampling ◽  
Grid System ◽  
Basic Field ◽  
The North ◽  
Zion National Park ◽  
Data Files ◽  
Access Data

The overall objectives of this study are to 1) provide a map of the current vegetation of Zion National Park (ZNP), 2) provide a listing of all vascular plants known for the Park, 3) list all rare, endangered and exotic plant species growing within the Park and describe the distribution and habitat preferences of each as fully as possible, 4) list representative locations for examples of undisturbed stands of each of the major vegetational types, and 5) present our basic field data to the Park on computer disks with software programs that will permit employees to access data files easily and systematically. These objectives are being satisfied through systematic sampling of the vegetation at 1. 6 km intervals. Ideally, the samples should be taken at all section corners using cadastral survey maps, but some remote portions of the park have never been surveyed. As a consequence, we have established a master grid system overlaying the entire Park. Where survey lines do exist our grid system is completely congruent with them. For ease of identifying grid intersection points for data retrieval, we have assigned alphabetical letters to the north-south lines and arabic numbers to the east-west lines. A master map is on file at ZNP headquarters at Springdale, Utah.

scholarly journals Tentative list of endemic vascular plants of the Zeravshan Mts in Tajikistan: distribution, habitat preferences and conservation status of species

2010 ◽  
Vol 19 (1) ◽  
pp. 65-80 ◽  
Author(s):  
Arkadiusz Nowak ◽  
Marcin Nobis
Keyword(s):  
Vascular Plants ◽  
National Park ◽  
Conservation Status ◽  
Habitat Preferences ◽  
Habitat Type ◽  
Mean Value ◽  
Taxonomic Structure ◽  
Endemic Plants ◽  
Effective Protection ◽  
The Mean

Tentative list of endemic vascular plants of the Zeravshan Mts in Tajikistan: distribution, habitat preferences and conservation status of speciesBased on literature data and own fieldwork in the Zeravshan Mts in Tajikistan (Middle Asia), the taxonomic structure, distribution, habitat preferences as well as conservation status of a group of 86 species of vascular plants of endemic character are presented. The tentative list of exclusive endemic plants for the Zeravshan Mts was compiled. They belong to 25 families. The richest is the genusAstragaluswith 11 species followed byCousinia(8),Allium(5) andScutellaria(3). The study has shown that the eastern subregions of the range are richest in endemics, especially, the Mogien-Daria, Seven Lakes, Pastrud-Daria, Ksztut and Yagnob valleys and Kuli-Kalon Plateau. The endemics studied are stenochoric species with very small number of known locations, mainly between one and two. The mean value of the range of the studied endemics is ca. 1140 km2. The most numerous endemic groups have been recorded at altitudes of around 1,800-2,100 and 2,700-3000 m a. s. l. The habitats harboring the richest group of endemics are rock screes, alpine forests, steppes and semi-savannas, alpine meadows, solid rocks, xerothermophilous shrubs and pastures. Almost half of the endemics have narrow ecological amplitude occurring in only one habitat type. The most important threats to Tajik endemics are intensive grazing and erosion of soils, as well as denudation. Most vulnerable types of vegetation to the human impact are forest and scrub communities. For effective protection of endemics in the Zeravshan Mts, a national park and a net of nature reserves has to be funded.

scholarly journals Geographical Analysis of the Distribution and Spread of Exotic Plant Species in Grand Teton National Park, Wyoming

1998 ◽  
Vol 22 ◽  
pp. 3-12
Author(s):  
Deborah Kurtz ◽  
Richard Aspinall ◽  
Katherine Hansen
Keyword(s):  
Exotic Species ◽  
Plant Species ◽  
National Park ◽  
National Park Service ◽  
Exotic Plants ◽  
Rare Plants ◽  
Exotic Plant ◽  
Exotic Plant Species ◽  
Grand Teton National Park ◽  
Park Service

The effects of introduced exotic species in natural environments are becoming important issues in conservation biology and natural resource management and recent scientific literature reveals increasing concern regarding the spread of invasive exotic plant species (Allen, 1996; Vitousek et al. 1996; Walker and Smith, 1997). Ecological consequences of these species include increased competition for space, water, and nutrients with native plants (which could result in a decrease in biodiversity), decreased forage quality for native ungulates, and changes in the microenvironments where the establishments took place (Woods, 1997). Sheley et al (1998) list several ecologically and economically detrimental impacts of exotic species. The National Park Service recognizes the need to protect ecosystems from exotic species (National Park Service, 1997) through management based on the ability to predict species distributions and spread, and monitoring in areas that are most susceptible to invasion. Recommended strategies for preventing the spread of exotic species include developing an early warning system to identify and eradicate new infestations of exotic plants in National Parks, and continued inventory and monitoring of exotic plants (National Park Service, 1997). These strategies will be based on assessment of the distribution and spread of exotic plants (National Park Service, 1997) using remote sensing and Geographic Information Systems (GIS) technologies for mapping and monitoring exotic plants, and models to predict the invasiveness and spread of exotic plants. In Grand Teton National Park (GTNP), exotic species are a great concern for park managers (National Park Service, 1997). Of the 1000 species of flowering plants within GTNP, there are also four (possibly five) rare plants that may be threatened as a result of competition with exotics (Wyoming Rare Plant Technical Committee, 1994): Draba borealis (Boreal draba), Epipactis gigantea (Giant helleborine), Lesquerella carinata var. carinata (Keeled bladderpod), Lesquerella paysonni (Payson's bladderpod), and possibly Draba densifolia var. apiculata (Rockcress draba). The continued survival of these sensitive plants in GTNP increases the need for management of exotic plants. GTNP has implemented a classification system for exotic plant species that consists of three priority levels (GTNP, 1997a). Priority 1 species are designated as "noxious" since they are capable of invading natural ecosystems and disrupting or displacing native vegetation. Currently, there are thirteen exotic plant species with a Priority 1 status within GTNP (Table 1 ).

scholarly journals Exotic Plants of Theodore Roosevelt National Park

1992 ◽  
Vol 16 ◽  
pp. 175-176
Author(s):  
Jack Butler
Keyword(s):  
Seed Bank ◽  
National Park ◽  
Soil Seed Bank ◽  
Aerial Photographs ◽  
Exotic Plant ◽  
Exotic Plant Species ◽  
Theodore Roosevelt ◽  
Theodore Roosevelt National Park ◽  
Field Season ◽  
Initial Survey

The 1992 field season began in early May with a meeting between the principal investigator and NPS Unit Technical Representatives. The primary objectives of the second field season was to 1) continue with the initial survey so that the number and distribution of exotic plant species within the Park could be estimated, 2) take low-level aerial photographs (slides) of the South Unit so that general areas of leafy spurge infestations could be mapped, 3) continue to evaluate the existing ecological effects of exotics on the native constituents, and 4) estimate density and composition of exotics within the soil seed bank.

scholarly journals Exotic Plants in Theodore Roosevelt National Park

1991 ◽  
Vol 15 ◽  
pp. 211-216
Author(s):  
Jack Butler ◽  
Frank Einhellig
Keyword(s):  
Plant Species ◽  
Great Plains ◽  
National Park ◽  
Primary Objective ◽  
First Year ◽  
Exotic Plant ◽  
Exotic Plant Species ◽  
Theodore Roosevelt ◽  
Theodore Roosevelt National Park ◽  
Personal A

The primary objective of the first year of the project was to determine the number and distribution of exotic plant species within the park. A preliminary list of exotics was provided by park personal. A more complete list of exotics found in the park was then generated using Heidel's (1990) list of "Preliminary Vascular Flora of Theodore Roosevelt National Park". The origin of all of the plant species listed in that report were determined from Stevens (1963) and Flora of the Great Plains (Great Plains Association 1986).

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