An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah
During the summers of 1971, 1972, and 1973, a general floristic ecological survey of the naturally-occurring vegetation of the Bear River Migratory Bird Refuge in Utah was carried out. Ten community types were identified and characterized. These included two aquatic communities, the Potamogeton pect...
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ftoregonstate:ir.library.oregonstate.edu:zg64tq092 2024-09-15T18:41:07+00:00 An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah Kaltwasser, Robert George Chilcote, William W. Botany and Plant Pathology Oregon State University. Graduate School https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/zg64tq092 English [eng] eng unknown Oregon State University https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/zg64tq092 Copyright Not Evaluated Plant communities -- Utah -- Bear River Migratory Bird Refuge (Box Elder County) Masters Thesis ftoregonstate 2024-07-22T18:06:07Z During the summers of 1971, 1972, and 1973, a general floristic ecological survey of the naturally-occurring vegetation of the Bear River Migratory Bird Refuge in Utah was carried out. Ten community types were identified and characterized. These included two aquatic communities, the Potamogeton pectinatus (Pope) and the Ruppia maritima/ Zannichellia palustris (Ruma/Zapa) communities. There were also three typically emergent communities, the Scirpus acutus (Scac), Typha latifolia (Tyla), and Scirpus maritimus paludosus (Scma) communities. And finally, there were five basically terrestrial communities, the Distichlis spicata stricta (Disp), Distichlis spicata stricta/Hordeum jubatum (Disp/Hoju), Salicornia europaea rubra (Saeu), Agropyron cristatum/Atriplex/Sacrobatus vermiculatus (Agcr/ At/Save), and Suaeda depressa/Bassia hyssopifolia/Lepidium perfoliatum (Sude/Bahy/Lepe) communities. The ten communities characterized were interrelated and related to the two apparently overriding environmental factors, soil moisture and soil salinity. The mean soil moisture of the ten communities ranged from wet to dry as follows: Pope, Ruma/Zapa, Scma, Scac, Tyla, Disp, Sude/ Bahy/Lepe, Saeu, Disp/Hoju, Agcr/At/Save. When the ten communities were arranged from mean high to low salinity, they fell in the following order: Saeu, Sude/Bahy/Lepe, Ruma/Zapa, Scma, Disp, Pope, Tyla, Disp/Hoju, Scac, Agcr/ At/Save. The total known flora of the Bear River Refuge has increased from 92 species in 1935 to 160 species in 1972. The increase came largely as a result of the introduction of "exotics" from surrounding areas. The three largest families in 1935 were (1) Compositae, (2) Chenopodiaceae, and (3) Gramineae. In 1972 the three largest families were (1) Compositae, (2) Gramineae, and (3) Chenopodiaceae. Based on trends of vegetative development and a continuation of present management practices, coupled with a further amelioration of edaphic conditions, as new silt and a supply of relatively fresh water continue, a further increase in ... Master Thesis Zannichellia palustris ScholarsArchive@OSU (Oregon State University) |
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ScholarsArchive@OSU (Oregon State University) |
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ftoregonstate |
language |
English unknown |
topic |
Plant communities -- Utah -- Bear River Migratory Bird Refuge (Box Elder County) |
spellingShingle |
Plant communities -- Utah -- Bear River Migratory Bird Refuge (Box Elder County) Kaltwasser, Robert George An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah |
topic_facet |
Plant communities -- Utah -- Bear River Migratory Bird Refuge (Box Elder County) |
description |
During the summers of 1971, 1972, and 1973, a general floristic ecological survey of the naturally-occurring vegetation of the Bear River Migratory Bird Refuge in Utah was carried out. Ten community types were identified and characterized. These included two aquatic communities, the Potamogeton pectinatus (Pope) and the Ruppia maritima/ Zannichellia palustris (Ruma/Zapa) communities. There were also three typically emergent communities, the Scirpus acutus (Scac), Typha latifolia (Tyla), and Scirpus maritimus paludosus (Scma) communities. And finally, there were five basically terrestrial communities, the Distichlis spicata stricta (Disp), Distichlis spicata stricta/Hordeum jubatum (Disp/Hoju), Salicornia europaea rubra (Saeu), Agropyron cristatum/Atriplex/Sacrobatus vermiculatus (Agcr/ At/Save), and Suaeda depressa/Bassia hyssopifolia/Lepidium perfoliatum (Sude/Bahy/Lepe) communities. The ten communities characterized were interrelated and related to the two apparently overriding environmental factors, soil moisture and soil salinity. The mean soil moisture of the ten communities ranged from wet to dry as follows: Pope, Ruma/Zapa, Scma, Scac, Tyla, Disp, Sude/ Bahy/Lepe, Saeu, Disp/Hoju, Agcr/At/Save. When the ten communities were arranged from mean high to low salinity, they fell in the following order: Saeu, Sude/Bahy/Lepe, Ruma/Zapa, Scma, Disp, Pope, Tyla, Disp/Hoju, Scac, Agcr/ At/Save. The total known flora of the Bear River Refuge has increased from 92 species in 1935 to 160 species in 1972. The increase came largely as a result of the introduction of "exotics" from surrounding areas. The three largest families in 1935 were (1) Compositae, (2) Chenopodiaceae, and (3) Gramineae. In 1972 the three largest families were (1) Compositae, (2) Gramineae, and (3) Chenopodiaceae. Based on trends of vegetative development and a continuation of present management practices, coupled with a further amelioration of edaphic conditions, as new silt and a supply of relatively fresh water continue, a further increase in ... |
author2 |
Chilcote, William W. Botany and Plant Pathology Oregon State University. Graduate School |
format |
Master Thesis |
author |
Kaltwasser, Robert George |
author_facet |
Kaltwasser, Robert George |
author_sort |
Kaltwasser, Robert George |
title |
An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah |
title_short |
An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah |
title_full |
An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah |
title_fullStr |
An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah |
title_full_unstemmed |
An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah |
title_sort |
ecological study of the vegetation of the bear river migratory bird refuge, box elder county, utah |
publisher |
Oregon State University |
url |
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/zg64tq092 |
genre |
Zannichellia palustris |
genre_facet |
Zannichellia palustris |
op_relation |
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/zg64tq092 |
op_rights |
Copyright Not Evaluated |
_version_ |
1810485549372276736 |