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Journal articles on the topic 'Vegetation communities'

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Published: 4 June 2021
Last updated: 21 February 2023

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1

Harper, Kimball, Stewart Sanderson, E. McArthur, and Joel Tuhy. "Vegetation Communities of Zion National Park." UW National Parks Service Research Station Annual Reports 12 (January 1, 1988): 207–14. http://dx.doi.org/10.13001/uwnpsrc.1988.2751.

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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.
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2

Wiegand, T., and S. J. Milton. "Vegetation change in semiarid communities." Vegetatio 125, no. 2 (August 1996): 169–83. http://dx.doi.org/10.1007/bf00044649.

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3

Harper, Kimball, Stewart Sanderson, and E. McArthur. "Vegetation Communities of Zion National Park." UW National Parks Service Research Station Annual Reports 11 (January 1, 1987): 191–96. http://dx.doi.org/10.13001/uwnpsrc.1987.2673.

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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.
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4

Golovanov, Ya M., P. S. Shyrokikh, and L. M. Abramova. "Vegetation of Salavat town (Baschkortostan Republic). VI. Native forest vegetation." Vegetation of Russia, no. 25 (2014): 3–12. http://dx.doi.org/10.31111/vegrus/2014.25.3.

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The studies of natural forest vegetation of Salavat town were made during 2008–2011. 31 relevés of forest communities within the natural boundaries of phytocenoses were done. Vegetation of Salavat town includes ruderal, grass (meadow, steppe, helophyte and water vegetation) and forest vegetation. Water, helophyte, synanthropic, natural and semi-natural grass vegetation of the town was discussed in previous articles (Golovanov et al, 2011 and others). This article is devoted to the syntaxonomy of natural forest vegetation of Salavat town. Syntaxonomy of natural forest vegetation of Salavat town includes 3 classes (Querco-Fagetea Br.-Bl. et Vlieger in Vlieger 1937, Salicetea purpureae Moor in 1958 and Alnetea glutinosae Br.-Bl. et Tx. ex. Westhoff et al., 1943), 3 orders (Fagetalia sylvaticae Pawłowski, Sokołowski et Wallisch 1928, Salicetalia purpureae Moor in 1958 and Salicetalia auritae Doing 1962), 4 alliances (Alnion incanae Pawłowski, Sokołowski et Wallisch 1928, Salicion albae Soó 1930, Salicion triandrae T. Müller et Görs 1958, Salicion cinereae T. Müller et Görs ex Passarge 1961), 4 associations (Alnetum incanae Lüdi 1921, Salici-Populetum (R. Tx. 1931 ) Meijer Drees 1936, Salicetum triandro-viminalis Lohmeyer 1952, Salicetum pentandra-cinereae Passarge 1961) and 5 variants (ass. Alnetum incanae — variant Galium aparine; ass. Salici-Populetum — variants Carex acuta, Bromopsis inermis, Carex praecox and Acer negundo). Plant communities of the class Querco-Fagetea combine the broadleaf and coniferous-deciduous mesophytic forests of the temperate zone of the western Palearctic (Ermakov, 2012). One variant Galium aparine of ass. Alnetum incanae was registered in Salavat town. This variant of the association was described from the urban areas. The presence of synanthropic species such as Acer negundo, Arctium lappa, Arctium tomentosum, Artemisia vulgaris, Chelidonium majus, Convolvulus arvensis, Galium aparine, Geum urbanum, Leonurus quinquelobatus and etc. is very typical. Plant associations represent forests with Padus avium, which are often found in the floodplain of the river Belaya on the rich short-time flooded soils. The class Salicetea purpureae includes both riverine floodplain forest and shrub communities (Yamalov et al., 2012). 2 associations (Salici-Populetum and Salicetum pentandra-cinereae) and 4 variants (Carex acuta, Bromopsis inermis, Carex praecox and Acer negundo) were distinguished. The plant communities of associations Salici-Populetum and Salicetum triandro-viminalis represent the floodplain willow-poplar forests and shrubby vegetation, which are commonly found in the Republic of Bashkortostan on the river banks and lakeshores. Typically the communities are found on the banks of the river Belaya within the town of Salavat (Khaziakhmetov et al., 1989). A distinctive feature of the communities is a presence of the North American invasive neophyte species Acer negundo. Naturalization of this species takes place on the floodplains of the Republic of Bashkortostan. The similar community was recorded in Bryansk region (Bulokhov, Kharin, 2008) and they were described as the association Aceri negundi–Salicetum albae Bulokhov et Charin 2008. Our communities are different due to the dominance of Populus nigra with insignificant role of Salix alba. Further data collection can help to describe the new unit of the ecology-floristic classification. The plant communities of the class Alnetea glutinosae combine the lowland eutrophic black alder swamps, birch swamp forests and thickets of willow shrubs on peaty soils (Ermakov, 2012). The association Salicetum pentandra-cinereae was described. The association represents of hygrophyte and mesohygrophyte communities with dominance of grey willow. These communities are found on the banks of fens and oxbows in abundant moisture conditions. They are rarely found on fen mires in Salavat town.
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5

Harper, Kimball, Stewart Sanderson, and E. McArthur. "Vegetation Communities of Zion National Park." UW National Parks Service Research Station Annual Reports 13 (January 1, 1989): 234–40. http://dx.doi.org/10.13001/uwnpsrc.1989.2843.

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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.
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6

Golub, V. B., and N. B. Tchorbadze. "Vegetation communities of western substeppe ilmens of the Volga delta." Phytocoenologia 25, no. 4 (December 14, 1995): 449–66. http://dx.doi.org/10.1127/phyto/25/1995/449.

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7

Oliveira-Filho, Ary T. De. "Gradient analysis of an area of coastal vegetation in the State of Paraíba, northeastern Brazil." Edinburgh Journal of Botany 50, no. 2 (July 1993): 217–36. http://dx.doi.org/10.1017/s0960428600002596.

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A transect of coastal vegetation was surveyed forits plant communities in the state of Paraíba, Northeastern Brazil. Two main plant formations are found in this region. The ‘restinga’ is the coastal sand dune vegetation and the ‘tabuleiro’ is the adjacent savanna-like formation. The ordination of sample units and species of the transect showed that these plant formations cannot be considered as discrete communities but they are actually a vegetational continuum made up of species adapted to sandy soils but with varying distributional patterns according to the exposure to maritime influences.
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8

Thin, Nguen Nghia, Nguen Ba Thu, and Tran Van Thuy. "Classification of vegetation in Cucphuong National Park with the aim of large-scale mapping, Vietnam." Geobotanical mapping, no. 1994-1995 (1996): 64–67. http://dx.doi.org/10.31111/geobotmap/1994-1995.64.

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The tropical seasonal rainy evergreen broad-leaved forest vegetation of the Cucphoung National Park has been classified and the distribution of plant communities has been shown on the map using the relations of vegetation to geology, geomorphology and pedology. The method of vegetation mapping includes: 1) the identifying of vegetation types in the remote-sensed materials (aerial photographs and satellite images); 2) field work to compile the interpretation keys and to characterize all the communities of a study area; 3) compilation of the final vegetation map using the combined information. In the classification presented a number of different level vegetation units have been identified: formation classes (3), formation sub-classes (3), formation groups (3), formations (4), subformations (10) and communities (19). Communities have been taken as mapping units. So in the vegetation map of the National Park 19 vegetation categories has been shown altogether, among them 13 are natural primary communities, and 6 are the secondary, anthropogenic ones. The secondary succession goes through 3 main stages: grassland herbaceous xerophytic vegetation, xerophytic scrub, dense forest.
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9

Marrs, Rob H., and J. S. Rodwell. "British Plant Communities V. Maritime Communities and Vegetation of Open Habitats." Journal of Vegetation Science 11, no. 4 (August 2000): 615. http://dx.doi.org/10.2307/3246594.

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10

Barbour, Michael G., Ayzik I. Solomeshch, Robert F. Holland, Carol W. Witham, Roderick L. Macdonald, Sarel S. Cilliers, Jose A. Molina, Jennifer J. Buck, and Janell M. Hillman. "Vernal pool vegetation of California: communities of long-inundated deep habitats." Phytocoenologia 35, no. 2-3 (August 1, 2005): 177–200. http://dx.doi.org/10.1127/0340-269x/2005/0035-0177.

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11

Grant-Hoffman, M. Nikki, and James Dollerschell. "Post-fire vegetation communities in western Colorado." Native Plants Journal 20, no. 3 (2019): 226–38. http://dx.doi.org/10.3368/npj.20.3.226.

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12

Uğurlu, Emin. "Vegetation Database of Oak Communities in Turkey." Biodiversity & Ecology 4 (September 10, 2012): 314. http://dx.doi.org/10.7809/b-e.00110.

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13

Biondi, E., C. BLASI, M. Allegrezza, I. Anzellotti, M. M. Azzella, E. Carli, S. Casavecchia, et al. "Plant communities of Italy: The Vegetation Prodrome." Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology 148, no. 4 (July 4, 2014): 728–814. http://dx.doi.org/10.1080/11263504.2014.948527.

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14

Callaghan, Des A., and Paul A. Ashton. "Bryophyte clusters and sand dune vegetation communities." Journal of Bryology 29, no. 4 (December 2007): 213–21. http://dx.doi.org/10.1179/174328207x229733.

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15

Li, Yujuan, Jingyuan Feng, Jiakuan Chen, and Jihua Wu. "Original vegetation type affects soil nematode communities." Applied Soil Ecology 35, no. 1 (January 2007): 68–78. http://dx.doi.org/10.1016/j.apsoil.2006.05.008.

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16

Looman, J. "The vegetation of the Canadian Prairie Provinces III. Aquatic and semi-aquatic vegetation, Part 3 Aquatic plant communities." Phytocoenologia 14, no. 1 (March 10, 1986): 19–54. http://dx.doi.org/10.1127/phyto/14/1986/19.

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17

Aktepe, Nursema, and Ömer Küçük. "Allelopathic Mechanisms in Fire-Prone Ecosystems." Turkish Journal of Agriculture - Food Science and Technology 9, no. 6 (July 3, 2021): 1100–1105. http://dx.doi.org/10.24925/turjaf.v9i6.1100-1105.4288.

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Understanding the fire-prone arid-zone pine species and maquis vegetation's response to fire is very important to reveal the ecology and evolution of these species. During the succession of vegetation, there are complex relationships between allelopathic metabolites and fires. Many plant communities such as pines, maquis, savannas and woodlands are known to play a critical role in the development of succession. However, studies revealing the relationship between succession processes and allelopathic mechanisms in fire-prone ecosystems are quite limited. Most evergreen maquis vegetations are one of the most studied fire ecosystems. In maquis vegetation, fire causes the formation of plant communities that continue with allelochemicals produced by plants, as well as shaping the climate of the region. The event of a living species inhibiting another species by secreting toxic compounds is expressed as allelopathy. These toxic compounds are generally referred to as allelochemicals. Many maquis species that grow in fire-prone ecosystems excrete their allelochemicals, preventing the development of herbaceous species around them and invade their habitats. These chemicals, which accumulate in the soil during the dry season, affect the succession processes in vegetation in the event of a fire and determine which species will follow each other. Considering these relationships, it can be said that allelopathic plants have the potential to change plant diversity in vegetation by changing their functional plant characteristics. The purpose of this review is to determine the relationship between allelochemicals and fire of plant species in fire-prone ecosystems, and to reveal how this affects the succession processes.
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18

Bunting, M. Jane, Barry G. Warner, and Clayton R. Morgan. "Interpreting pollen diagrams from wetlands: pollen representation in surface samples from Oil Well Bog, southern Ontario." Canadian Journal of Botany 76, no. 10 (October 1, 1998): 1780–97. http://dx.doi.org/10.1139/b98-158.

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Pollen and spore analysis of surface sediment samples from 45 points within Oil Well Bog, a coniferous swamp near Cambridge, Ontario, was used to determine the possibility of identifying different wetland vegetation communities from their palynological record, and to assess the effects of variable wetland vegetation on the pollen representation of surrounding upland communities. The data obtained were mapped for individual taxa to allow direct comparison of the spatial patterns of vegetation abundance and the associated palynological assemblages, and cluster analysis was used to identify palynologically similar assemblages. Some wetland communities, such as swamp dominated by black spruce, do have distinctive pollen signatures, but not all the vegetational diversity observed is reflected in the palynological data, with similar pollen assemblages deriving from some communities which are vegetationally very different (e.g., shrub swamps dominated by Chamaedaphne calyculata and Ilex verticillata). The wetland pollen assemblages do reflect much of the floristic diversity of the surrounding uplands, although the different communities receive varying proportions of their pollen influx from upland sources (varying from less than 5% to over 90%), and wide variations in the percentage of a given upland pollen morphotype can be found within quite a short distance, depending on the nature of local wetland communities.Key words: palynology, swamp, surface samples, wetland.
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19

Riedl, Hannah L., William H. Clements, and Liba Pejchar. "An introduced plant is associated with declines in terrestrial arthropods, but no change in stream invertebrates." Canadian Journal of Fisheries and Aquatic Sciences 76, no. 8 (August 2019): 1314–25. http://dx.doi.org/10.1139/cjfas-2018-0098.

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Riverine systems often spread non-native species, yet the co-occurring impacts of introduced riparian vegetation on aquatic- and terrestrial-derived resources are unknown. We compared aquatic and terrestrial arthropod communities and their flux into and out of streams in riparian reaches invaded and uninvaded by Robinia neomexicana, a woody plant introduced to a western Colorado watershed. We found that invaded reaches had fewer terrestrial arthropods collected off foliage, conceivably because of the plant’s later leaf-out phenology. Overall, seasonal and annual factors best described terrestrial and aquatic arthropod communities. However, when we evaluated vegetation and stream characteristics in lieu of season and year, we found terrestrial arthropod biomass and richness were negatively related to cover of R. neomexicana and positively related to vegetative cover, forb cover, and vertical vegetation structure. Our results suggest ecosystems respond to landscape variation differently, where directly related food web components (i.e., terrestrial arthropods on introduced vegetation) respond stronger than more distally related constituents (i.e., aquatic insects).
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20

Malloch, A. J. C. "Plant communities of the British sand dunes." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 96 (1989): 53–74. http://dx.doi.org/10.1017/s026972700001085x.

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SynopsisThe National Vegetation Classification has details of some 2000 samples of sand dune vegetation collected nationally. Analysis of these data has resulted in the recognition of about thirteen plant communities of the sand dune system. Details of these communities are presented, elaborating on their species composition, variability, ecological relationships and distribution. As might be expected, the major direction of variation is from strandline, through the vegetation of active dunes, to the fixed dune grasslands, heath and scrub. The precise pattern is affected by the calcium status of the dune and by its geographic location. The vegetation of dune slacks is also dependent on the calcium status of the sand, as well as the amount and persistence of standing water. Superimposed on this natural pattern of variation is the use of dune systems by the grazing of domestic animals as seen on the machair of the Hebrides in particular.
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21

Golovanov, Ya M., S. S. Petrov, and L. M. Abramova. "Vegetation of Salavat town (Bashkortostan Republic). I. The higher aquatic vegetation (classes Lemnetea and Potametea)." Vegetation of Russia, no. 19 (2011): 55–70. http://dx.doi.org/10.31111/vegrus/2011.19.55.

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The results of a syntaxonomical study (by Braun-Blanquet method) of higher aquatic plant communities of Salavat town (Bashkortostan Republic), the third city in the republic with population approximately of 150 000 people, are presented. The diversity of communities of aquatic vegetation has been classified. They belong to 2 classes (Lemnetea, Potametea), 3 orders (Lemnetalia, Hydrocharitetalia and Potametalia), 4 alliances (Lemnion minoris, Hydrocharition morsus-ranae, Potamion pectinati and Nymphaeion albae), 14 associations and 10 variants. An expansion of the communities belong to associations Elodeetum canadensis, Najadetum marinae in the Belaya river was noticed. It indicates the intensification of sewage disposal to the river.
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22

Zhang, Yu, and Meiqi Dai. "Analysis of the Cooling and Humidification Effect of Multi-Layered Vegetation Communities in Urban Parks and Its Impact." Atmosphere 13, no. 12 (December 7, 2022): 2045. http://dx.doi.org/10.3390/atmos13122045.

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As urbanization continues to accelerate, the urban heat island effects have become one of the most important issues affecting the urban environment and people’s living experience. Numerous studies have shown that urban parks and green spaces can effectively alleviate the problem of the urban heat island effect and provide cooling and humidifying effects. Vegetation communities are a fundamental part of urban parklands, and multi-layered vegetation communities are considered to have better cooling and humidifying effects. Previous studies have focused on comparative analyses between different cover types of vegetation communities but have not explored the differences in the cooling and humidifying effects of multi-layered vegetation communities of the same cover type. Therefore, the Olympic Forest Park in Beijing was selected as the subject of this study, and multi-layered vegetation-covered (tree-shrub-grass) with different degrees of densities and uncovered squares were selected for the control and comparison. The cooling and humidifying effects of multi-layered vegetation communities with different canopy densities at different times of the day through field measurements were studied, and the influencing factors for this were analyzed. The results show that the tree cover is the core factor affecting temperature; the degree of the canopy density of multi-layered vegetation communities is significantly and positively correlated with the intensity of cooling and humidification, and the cooling and humidifying effect of multi-layered vegetation communities increases as the degree of canopy density increases. The results of this study can provide some references for the planning and design of urban parks and green spaces.
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23

Scott, David, Neil G. Bayfield, Alexander Cernusca, and David A. Elston. "Use of a weighing lysimeter system to assess the effects of trampling on evapotranspiration of montane plant communities." Canadian Journal of Botany 80, no. 6 (June 1, 2002): 675–83. http://dx.doi.org/10.1139/b02-049.

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The aim was to investigate the impacts of trampling on water loss and partitioning in vegetation with contrasting structure and species composition. A new design of weighing lysimeter was used in glasshouse experiments to compare evapotranspiration from intact and trampled blocks of vegetation. The lysimeter system was able to detect differences between treatments after only a few hours. Evapotranspiration was recorded for six communities, representative of cryptogam - vascular plant communities found in the Cairngorm Mountains of Scotland. Vegetation blocks of Racomitrium and Vaccinium/Hylocomium heath communities had the greatest cumulative evapotranspiration and lichen heath the least over 48 h. Blocks from three of the communities (Agrostis/Festuca grassland, Calluna wet heath, and lichen heath) were used in a trampling experiment with five levels of damage. Trampling progressively destroyed the structure of the vegetation of all communities and increased the rates of water loss from the blocks. The grassland community vegetation was the most resilient. These results help to link the massive changes in vegetation structure resulting from trampling to effects on water loss and microclimate.Key words: weighing lysimeter, evapotranspiration, recreation, trampling, cryptogams, montane vegetation.
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24

Mcdonald, D. J. "Ordination by detrended correspondence analysis (DCA) of the vegetation of Swartboschkloof, Jonkershoek, Cape Province." Bothalia 17, no. 1 (October 23, 1987): 121–29. http://dx.doi.org/10.4102/abc.v17i1.1021.

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The data of a Braun-Blanquet vegetation classification was ordinated using detrended correspondence analysis (DCA). This was done at the Fynbos Biome intensive study site, Swartboschkloof, Jonkershoek, to investigate the factors determining the distribution of the plant communities. Superimposition of environmental data on the DCA ordination confirmed the indications of the Braun-Blanquet classification that the distribution of plant communities is most strongly correlated with soil geology and, to a lesser extent, with soil moisture status. The ordination also proved useful for examining the relationships between the transitional communites and the distinct communities of Swartboschkloof.
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25

Piscová, Veronika, Michal Ševčík, Andrej Sedlák, Juraj Hreško, František Petrovič, and Terézia Slobodová. "Resistance of Lichens and Mosses of Regenerated Alpine Communities to Repeated Experimental Trampling in the Belianske Tatras, Northern Slovakia." Diversity 15, no. 2 (January 17, 2023): 128. http://dx.doi.org/10.3390/d15020128.

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Due to the destruction of alpine ecosystems by extreme human trampling, some alpine areas are closed to tourists. After years of regeneration, a tendency toward reopening these areas for tourism is envisaged. Although numerous studies have documented vegetative responses to trampling disturbance, research that thoroughly examines the trampling impacts on the vegetation at different organizational levels is often limited. Most of the previous studies on the human disturbance of vegetation focused on the impacts on vascular plants, while the impacts on lichens or mosses are less well-documented. To understand how regenerated communities respond to further trampling disturbance, we repeated the experimental research on short-term trampling after 14 years in three high-altitude communities in the Tatras in northern Slovakia. According to Cole and Bayfield’s protocol, we evaluated the resistance of communities trampled in 2008 and 2022, with a focus on groups of lichens and mosses and their individual species. This research brings new knowledge regarding the different behaviors of regenerated vegetation, especially lichens and mosses, to trampling disturbance. The results show that human trampling in alpine communities has a large negative impact and, therefore, management plans should discourage off-trail hiking and limit recreational activities in sensitive or reopened alpine areas.
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26

Stanišić-Vujačić, Milica, Danijela Stešević, Sead Hadžiablahović, Danka Caković, and Urban Šilc. "An Asphodelus ramosus dominated plant community in Montenegro." Acta botanica Croatica 81, no. 1 (January 3, 2022): 12–22. http://dx.doi.org/10.37427/botcro-2022-027.

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Our phytosociological study in Montenegro (Ćemovsko polje) deals with the syntaxonomy of arid grasslands in the Adriatic region and, in particular, different interpretations of plant communities dominated by Asphodelus ramosus. The main aims of this study were to contribute to knowledge of the composition of dry grasslands dominated by Asphodelus ramosus in Montenegro and to compare instances of Asphodelus ramosus dominated vegetation along the Adriatic. Our vegetation dataset included 82 phytosociological relevés: 17 from our recent field work and 72 relevés of South European Asphodelus ramosus communities. Ordination analysis (NMDS) was used for comparison of Asphodelus ramosus dominated communities in the Adriatic region. The Asphodelus ramosus community from Montenegro was classified into Bromo erecti-Chrysopogonetum grylli . The analysis revealed two distinct vegetation groups: grassland communities of the vegetation class Festuco-Brometea from Montenegro, Croatia and Albania, and edge vegetation of the new class Charybdido pancratii-Asphodeletea ramosi from Italy. Comparison with similar vegetation types shows high similarity with associations on the eastern Adriatic coast, where they are treated as grassland communities belonging to the alliance Chrysopogono grylli-Koelerion splendentis , order Scorzoneretalia villosae, class Festuco-Brometea .
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27

Stanišić-Vujačić, Milica, Danijela Stešević, Sead Hadžiablahović, Danka Caković, and Urban Šilc. "An Asphodelus ramosus dominated plant community in Montenegro: fringe or grassland?" Acta botanica Croatica 81, no. 1 (January 3, 2022): 12–22. http://dx.doi.org/10.37427/botcro-2021-027.

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Our phytosociological study in Montenegro (Ćemovsko polje) deals with the syntaxonomy of arid grasslands in the Adriatic region and, in particular, different interpretations of plant communities dominated by Asphodelus ramosus. The main aims of this study were to contribute to knowledge of the composition of dry grasslands dominated by Asphodelus ramosus in Montenegro and to compare instances of Asphodelus ramosus dominated vegetation along the Adriatic. Our vegetation dataset included 82 phytosociological relevés: 17 from our recent field work and 72 relevés of South European Asphodelus ramosus communities. Ordination analysis (NMDS) was used for comparison of Asphodelus ramosus dominated communities in the Adriatic region. The Asphodelus ramosus community from Montenegro was classified into Bromo erecti-Chrysopogonetum grylli . The analysis revealed two distinct vegetation groups: grassland communities of the vegetation class Festuco-Brometea from Montenegro, Croatia and Albania, and edge vegetation of the new class Charybdido pancratii-Asphodeletea ramosi from Italy. Comparison with similar vegetation types shows high similarity with associations on the eastern Adriatic coast, where they are treated as grassland communities belonging to the alliance Chrysopogono grylli-Koelerion splendentis , order Scorzoneretalia villosae, class Festuco-Brometea .
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Thapa, Rajesh, Martin C. Thoms, Michael Reid, and Melissa Parsons. "Do adaptive cycles of floodplain vegetation response to inundation differ among vegetation communities?" River Research and Applications 36, no. 4 (September 11, 2019): 553–66. http://dx.doi.org/10.1002/rra.3538.

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Pielech, Remigiusz, Marek Malicki, Michał Smoczyk, Andrzej M. Jagodziński, Marcin K. Dyderski, Paweł Horodecki, Sylwia Wierzcholska, et al. "Plant communities of the Czerwona Woda River Valley (Stołowe Mountains National Park)." Forest Research Papers 79, no. 2 (June 1, 2018): 181–97. http://dx.doi.org/10.2478/frp-2018-0019.

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Abstract The Czerwona Woda River is the main watercourse in the Stołowe Mountains National Park and drains the major part of the Stołowe Mts. It was regulated in the past, but its channel has been spontaneously naturalised. Now, managed spruce forests grow along almost the entire length of this small mountain stream. The aims of the present study were to investigate diversity of plant communities connected with the Czerwona Woda stream and to prepare detailed vegetation maps. The results obtained can potentially be a reference for future restoration projects implemented in the Stołowe Mountains National Park. As a result of vegetation mapping, there were distinguished 20 plant communities representative of the current vegetation and 3 communities representative of the potential vegetation. Phytosociological data on the vegetation was documented by making 62 phytosociological relevés. Based on these, 9 forest communities were distinguished, of which 3 were classified into associations, 1 – into alliance, 5 – into secondary forest communities. Furthermore, there were distinguished 14 non-forest communities, of which 10 were classified into associations. Several of the phytosociological classes distinguished have been reported for the first time in the Stołowe Mountains National Park.
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Al-Khulaidi, Abdul Wali A., and Ali A. Al-Namazi. "VEGETATION MAPPING AND DEVELOPMENT OF A METHOD FOR THE VEGETATION TYPIFICATION IN THE ARABIAN PENINSULA." Electronic Journal of University of Aden for Basic and Applied Sciences 3, no. 4 (December 31, 2022): 327–38. http://dx.doi.org/10.47372/ejua-ba.2022.4.203.

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The study aims to generate vegetation mapping for the study area's existing vegetation and apply a vegetation typification approach that can be used to identify the vegetation structure of any region in the Arabian Peninsula. To highlight the plant diversity and the vegetation communities for nature conservation purposes, a case study in Albaha region, Saudi Arabia is presented, in which the natural vegetation communities and vegetation types of one of the Important Plant Species Areas (IPSA) of Saudi Arabia is evaluated. In an area of 167.6 km2, 97 samples, each with 20X20 m were laid out covering the whole ecological zones of the study area. Data on flora, vegetation cover and topography were gathered from each sample site using Braun-Blanquet method. ITC approach of vegetation typification according to three dimensions (trees, shrubs, and herbs) is applied to identify the structures of each vegetation type. The results showed 319 plant species belonging to 228 genera and 75 families. These species were analyzed and classified into three plant communities and 14 different vegetation types using multivariate analysis program (MVSP) software. Using the percentage of trees, shrubs and herbs, the three-dimensional graphics of vegetation structure presented in this study can be used to determine the vegetation structure of any region in the Arabian Peninsula.
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Golovanov, Ya M., and L. M. Abramova. "Vegetation of Salavat town (Bashkortostan Republic). II. Helophyte vegetation (classes Phragmito-Magnocaricetea and Isoёto-Nanojuncetea)." Vegetation of Russia, no. 20 (2012): 3–26. http://dx.doi.org/10.31111/vegrus/2012.20.3.

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The results of a syntaxonomical study of helophytic plant communities of Salavat town (Baschkortostan Republic) made by using the Braun-Blanquet method are presented. The helophytic vegetation communities have been classified. They belong to 2 classes (Phragmito-Magnocaricetea, Isoëto-Nanojuncetea), 5 orders, 7 alliances, 16 associations, 3 communities and 17 variants. Invasion of synanthropic plants (Acer negundo, Agrostis stolonifera, Artemisia vulgaris, Elytrigia repens, Euphorbia virgata, etc.) was recorded. It reflects specificity of helophytic habitats in urban conditions and anthropogenic landscapes. The significant role of synanthropic classes such as Bidentetea tripartitae (Bidens cernua, B. tripartita, Echinochloa crusgalli, Persicaria hydropiper, P. lapathifolia, etc.), Stellarietea mediae (Cirsium setosum, Erysimum cheiranthoides, etc.), Artemisietea vulgaris (Cichorium intybus, Euphorbia virgata, etc.), Polygono arenastri—Poëtea annuae (Plantago major, Poa annua, Polygonum aviculare) was noticed. A penetration into a helophyte community of Echinocystis lobata, North American invasive plant species, — was also recorded.
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Wang, Jian Cheng, Jian Cai Chi, and Bo Rong Pan. "Effects of Human Disturbance on Mountain Vegetation Communities." Vegetos- An International Journal of Plant Research 28, no. 4 (2015): 194. http://dx.doi.org/10.5958/2229-4473.2015.00104.4.

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Morton, Howard L., and Alicia Melgoza. "Vegetation Changes following Brush Control in Creosotebush Communities." Journal of Range Management 44, no. 2 (March 1991): 133. http://dx.doi.org/10.2307/4002311.

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Uğurlu, Emin, and Deniz İşik. "Vegetation Database of the Grassland Communities in Anatolia." Biodiversity & Ecology 4 (September 10, 2012): 313. http://dx.doi.org/10.7809/b-e.00109.

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35

Carvalho, Fernando Geraldo de, Nelson Silva Pinto, José Max Barbosa de Oliveira Júnior, and Leandro Juen. "Effects of marginal vegetation removal on Odonata communities." Acta Limnologica Brasiliensia 25, no. 1 (May 10, 2013): 10–18. http://dx.doi.org/10.1590/s2179-975x2013005000013.

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AIM: Here we assess the effects of habitat degradation on individuals of the two suborders of Odonata community of Borecaia river sub-basin. More specifically, we tested the hypothesis that Anisoptera richness would be positively affected by removal of vegetation; on the other hand, Zygoptera richness would be adversely affected by virtue of their ecophysiological requirements; METHODS: We selected 10 streams of similar orders, six preserved and four degraded. Streams characterized as preserved had values of Index of Habitat Integrity (HII) above 0.70 (0.77 ± 0.07, mean ± SD) and continuous forest on both sides with a minimum width of 70 meters. Each site was sampled three times on different days. The effect of vegetation removal on richness was assessed using richness estimated by first order Jackknife; RESULTS: Decreased physical integrity (measured with IIH) of streams had no significant effect on the estimated richness to Odonata in general. However, the estimated richness of Anisoptera showed an inverse relationship with the integrity (r² = 0.485, P = 0.025), i.e., there was a reduction in their species richness with increasing integrity; DISCUSSION: As a general pattern, Anisoptera presents higher richness in an altered site; on the other hand, Zygoptera presents higher richness in a preserved one. This pattern suggests that Odonata needs to be considered at the sub-order level to access the effects of habitat degradation on these insects. Because of its restrictions ecophysiological Odonata varied widely in their composition and species richness between the two types of environments, it reinforces the potential of the order of studies and environmental monitoring also shows that Zygoptera be more affected by changes in habitat. However, further studies including more samples and different streams are need to confirm this pattern, being an interesting line of research for future works.
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Jenkins, Michael A. "Vegetation Communities of Great Smoky Mountains National Park." Southeastern Naturalist 6, sp2 (December 2007): 35–56. http://dx.doi.org/10.1656/1528-7092(2007)6[35:vcogsm]2.0.co;2.

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37

Kirby, Roger P. "The Aberlady Bay coastal landforms and vegetation communities." Scottish Geographical Magazine 113, no. 2 (August 1997): 121–26. http://dx.doi.org/10.1080/00369229718737003.

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Van Lear, D. H., and S. M. Jones. "An Example of Site Classification in the Southeastern Coastal Plain Based on Vegetation and Land Type¹." Southern Journal of Applied Forestry 11, no. 1 (February 1, 1987): 23–28. http://dx.doi.org/10.1093/sjaf/11.1.23.

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Abstract A site classification system based on vegetation and land type was developed for the Savannah River Plant (SRP) in the upper coastal plain of South Carolina. Different positions of the landscape support distinctive plant communities. Late successional plant communities and their immediate predecessors were identified on eight site types along a moisture gradient ranging from dry, sandy uplands to flooded bottoms. Late successional, near-stable plant communities, even in the highly disturbed forest ecosystems of the Southeast, act as integrators of environmental factors to reflectsite potential. Vegetation can supplement information on soils and topography in the delineation and classification of forest sites. Knowledge of site-vegetative relationships would be especially useful in making management decisions regarding wildlife habitat evaluation, hazard rating for insects, diseases, and fires, and estimating potential uses for recreation. Application of the system by practicing foresters is discussed. South. J. Appl. For. 11(1):23-28.
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39

Golovanov, Ya M., and L. M. Abramova. "Vegetation of Salavat town (Bashkortostan Republic). III. Synantrope vegetation (classes Bidentetea tripartitae, Stellarietea mediae and Artemisietea vulgaris)." Vegetation of Russia, no. 21 (2012): 34–65. http://dx.doi.org/10.31111/vegrus/2012.21.34.

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At the moment, the ruderal vegetation of Salavat town (Bashkortostan Republic) (classes Bidentetea tripartitae, Stellarietea mediae and Artemisietea vulgaris) is presented by 20 associations, 3 subassociations, 2 variants, 4 communities (2 derivate and 1 basal) belonging to 7 alliances and 6 orders. High variety of natural and synantrope vegetation is caused by heterogeneity of landscapes within city territory and different degree of anthropogenic impact. A characteristics of synantrope urban vegetation is a presence and increasing of distribution of the monodominant plant communities formed as a result of invasion of aggressive neophytes (derivate communities Bidens frondosa [Bidentetea tripartitae/Stellarietea mediae], Galinsoga parviflora [Stellarietea mediae] and associations Ambrosietum trifidae, Ivaetum xanthiifoliae). Unlike other types of natural and seminatural vegetation, the ruderal vegetation occupies the biggest areas of Salavat town.
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40

Fryday, Alan M. "Phytosociology of Terricolous Lichen Vegetation in the Cairngorm Mountains, Scotland." Lichenologist 33, no. 4 (July 2001): 331–51. http://dx.doi.org/10.1006/lich.2001.0322.

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AbstractThe results of an investigation into the lichen vegetation associated with vascular plant communities in the Scottish Highlands are presented. Most lichen species rarely occur in homogeneous stands of vascular plant vegetation, either occurring around the edges of recognized National Vegetation Classification (NVC) communities or in small-scale mosaics with them. However, some lichen species have a high fidelity to the more open NVC communities. The problems associated with applying NVC survey techniques to lichen assemblages are described and discussed.
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Jakubisová, Mariana, and Matúš Jakubis. "Rating of Watercourse Bank Stability Through Riparian Herbal Communities." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 65, no. 3 (2017): 849–57. http://dx.doi.org/10.11118/actaun201765030849.

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Riparian vegetation performs an important and irreplaceable role in the countryside. The paper deals with the stabilizing effect of herbal communities on the banks of watercourse Breznický potok in geomorphological unit Kremnické vrchy (Central Slovakia). We analyzed the relationships between the vegetation coverage VEG % (%) and factor of stability (Fs) which was computed according to Bank Stability and Toe Erosion Model (BSTEM) on experimental banks. We also analyzed the relationships between VEG % (%) and BEHI (Bank Erosion Hazard Index). The value of aditional cohesion cr was calculated by RipRoot Model in BSTEM for present vegetation. The research was conducted on 20 experimental sections with 20 experimental profiles with the presented vegetation coverage (%) based on the detected percentage of grass and herbaceous on the riparian banks. The calculated results of Fs were evaluated in accordance with existing erosion damages of experimental banks which were determined in the terrain through visual classification. Research has shown a strong correlation between vegetation cover of bank VEG % and a stability factor Fs (correlation coefficient Iyx = 0.976) and between VEG % and BEHI (Iyx = 0.956). Data according to BEHI and BSTEM show similar results (Iyx = 0.912). The results were statistically tested.
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Zeidler, Miroslav, Martin Duchoslav, and Marek Banaš. "Effect of altered snow conditions on decomposition in three subalpine plant communities." Open Life Sciences 9, no. 8 (August 1, 2014): 811–22. http://dx.doi.org/10.2478/s11535-014-0312-3.

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AbstractSnow cover and its spatio-temporal changes play a crucial role in the ecological functioning of mountains. Some human activities affecting snow properties may cause shifts in the biotic components of ecosystems, including decomposition. However, these activities remain poorly understood in subalpine environments. We explored the effect of human-modified snow conditions on cellulose decomposition in three vegetation types. Snow density, soil temperature, and the decomposition of cellulose were studied in Athyrium, Calamagrostis, and Vaccinium vegetation types, comparing stands intersected by groomed ski slope and natural (outside the ski slope) stands. Increased snow density caused the deterioration of snow insulation and decreased the soil temperature inside the ski slope only slightly in comparison with that outside the ski slope in all vegetation types studied. The decomposition was apparently lower in Athyrium vegetation relative to the other vegetation types and strongly (Athyrium vegetation) to weakly lower (other vegetation types) in groomed than in ungroomed stands. Wintertime, including the melting period, was decisive for overall decomposition. Our results suggest that differences in decomposition are influenced by ski slope operations and vegetation type. Alterations in snow conditions appeared to be subtle and long-term but with important consequences for conservation management.
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Zakharov, Moisey, Mikhail Cherosov, Elena Troeva, and Sebastien Gadal. "Vegetation cover analysis of the mountainous part of north-eastern Siberia by means of geoinformation modelling and machine learning (basic principles, approaches, technology and relation to geosystem science)." BIO Web of Conferences 38 (2021): 00142. http://dx.doi.org/10.1051/bioconf/20213800142.

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For the first time, the geoinformation modelling and machine learning approaches have been used to study the vegetation cover of the mountainous part of North-Eastern Siberia – the Orulgan medium-altitude mountain landscape province. These technologies allowed us to distinguish a number of mapping units that were used for creation and analysis of 1:100 000 scale vegetation map of the interpreted key area. Based on the studies, we decided upon the basic principles, approaches and technologies that would serve as a methodology basis for the further studies of vegetation cover of the large region. Relief, slope aspect, genetic types of sediments, and moisture conditions were selected as supplementary factors to the vegetative indices for differentiation of both plant communities and vegetation map units.
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GODOI, MAURICIO N., and EDIVALDO O. DE SOUZA. "The effects of forest-savanna-grassland gradients on bird communities of Chiquitano Dry Forests domain, in western Brazil." Anais da Academia Brasileira de Ciências 88, no. 3 suppl (September 22, 2016): 1755–67. http://dx.doi.org/10.1590/0001-3765201620150615.

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ABSTRACT Different vegetation types are distributed in mountains according to altitude, topography and soil. The composition and structure of bird communities in these areas can change in relation to the vegetation gradient, with particular communities occupying each habitat type. In this study we present the changes in composition, species richness and bird abundance over the gradient of forests, savannas and altitudinal grasslands of Maciço do Urucum, a mountainous region located in the Chiquitano Dry Forests domain in western Brazil. We recorded 165 bird species through qualitative and quantitative methods. Forested savannas, riparian forests and submontane forests presented the highest richness and abundance of birds, while arboreal savannas and altitudinal grasslands had intermediate and low values, respectively. The bird composition was similar between riparian and submontane forests, while other vegetation types present more dissimilar bird communities. Our results show differences in composition, richness and bird abundance among the vegetation types present at Maciço do Urucum, and highlight an important function of vegetation gradients for the conservation of bird communities in mountains. Additionally, this is the first study of the bird communities in the Brazilian Chiquitano Dry Forests, an important domain in the west of Brazil which has been poorly studied.
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Prieto, Aldo Raúl. "Late Quaternary Vegetational and Climatic Changes in the Pampa Grassland of Argentina." Quaternary Research 45, no. 1 (January 1996): 73–88. http://dx.doi.org/10.1006/qres.1996.0007.

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AbstractThe vegetation and climate of the Pampa grassland, Argentina, during the late Quaternary are reconstructed from pollen recovered from dated stratigraphic sections from arroyo walls and from archaelogical excavations. Prior to 10,500 yr B.P., herbaceous psammophytic steppe existed in the central part of the Pampa grassland while xerophytic woodland associated with psammophytic and halophytic steppe occurred in the southwestern part of the Pampa. These types of vegetation and the continental conditions that prevailed in the area of the present-day coast (38°S), indicate subhumid-dry climate and annual precipitation 100 mm lower than present. A subsequent change toward a vegetation characteristic of ponds, swamps, and foodplains, or toward environments with locally more effective moisture, occurred ca. 10,500 yr B.P. suggesting annual precipitation close to modern levels or a higher availability of water in the central part of the Pampa grassland, this type of vegetation existed until 8000 yr B.P., when it was replaced by grassland communities that lasted until 7000 yr B.P. In the southwestern part of the Pampa grassland, this vegetation developed before 7000 yr B.P. and persisted until ca. 5000 yr B.P. Sea level higher than the present ca. 6200 yr B.P. is consistent with sharp modification of the vegetation and development of local halophytic communities dominant at 38°S. A return to subhumid-dry conditions occurred after 5000 yr B.P. The late Holocene vegetation is characterized by pollen assemblages similar to the psammophytic and halophytic communities of the Southern pampa grassland, associated with communities with more edaphic conditions. At the same time, at 38°S a sea level regression is suggested by the dominance of fresh-water pollen assemblages and micropaleontological remains. The trend toward humid, temperate conditions ca. 1000 yr B.P. suggested by vertebrate remains characteristic of temperate and humid conditions, as well as a very short but dry episode during the 18th century suggested by the geology, are not clearly evidenced in the pollen sequences. Vegetational and climatic changes are explained by the latitudinal shifts and changes in intensity of the southern atmospheric circulation and changes in sea level.
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46

Golovanov, Ya M., S. M. Yamalov, and L. M. Abramova. "Vegetation of Salavat town (Bashkortostan Republic). V. Native and semi-native herb vegetation (classes Molinio-Arrhenatheretea, Festuco-Brometea and Thero-Salicornietea)." Vegetation of Russia, no. 24 (2014): 13–37. http://dx.doi.org/10.31111/vegrus/2014.24.13.

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The big cities are ecosystems where the most of the planet population is concentrated. The urban environment is characterized by essential changes of substances circulation, energy flow and the ecological conditions important for vegetation growing (Vladimirov, 1986; Odum, 1986; Burda, 1991; Goryshina, 1991; Berezutski, 2007 etc.). At present, urbanized territories of the world occupy only 5% of the entire land, and about 3 billion people live there., Increase of urbanization forces us to study the vegetation cover of the cities. Within city line, two main variants of vegetation communities are distinguished. The first is anthropogenic. It includes man-planted vegetation and widespread communities of synanthropic species. The second variant represents the remains of natural communities ecotopes on the urban territory. Native and semi-native herb vegetation of Salavat town (classes Molinio-Arrhenatheretea, Festuco-Brometea and Thero-Salicornietea) is classified to 6 orders, 9 unions, 10 associations, 1 subassociation, 7 variants and 6 communities. Among them 3 associations (Elytrigio repentis–Bromopsidetum inermis, Sedo acris–Festucetum pseudovinae, Astragalo austriacae–Stipetum pulcherrimae), 1 subassociation (F. v.–C. f. poetosum angustifoliae) and 5 communities (derivate community Solidago canadensis [Arrhenatheretalia], basal community Poa angustifolia [Cynosurion/Onopordetalia acanthii], derivate community Lolium perenne [Cynosurion] and communities of Geranium sibiricum and Suaeda corniculata) are described for the first time in the South Urals. Grassland communities of the class Molinio-Arrhenatheretea maintaining some trampling and pasture (in the city suburbs) are most widespread. They are rather diverse due to a wide range of ecological characteristics of the habitats (disturbance, moistening, and characteristics of substratum). The steppe vegetation of the class Festuco-Brometea is remained on the southern and eastern slopes of the uplands. The class Thero-Salicornietea communities on habitats with technogenic salinification occur locally. When building the city most of natural vegetation communities were destroyed, or they were transformed in semi-natural phytocoenosis with a high number of synanthropic species in floristic structure. The remained fragments of natural vegetation make an essential contribution, both to city flora, and to urban vegetation. They are refuges of many plant species, including rare and endemic species of the plants. Among endemic species — 1 species (Astragalus wolgensis). Two species (Stipa pulcherrima, S. pennata) are included in the Red List of the Russian Federation and also 2 species from the Red List of Bashkortostan Republic (Stipa korshinskyi and Tulipa biebersteiniana) were revealed. The rare plant species were described in steppe communities and the steppe meadows. These ecosystems need to be protected urgently.
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Puglisi, Marta, Maria Privitera, and Giovanni Spampinato. "The bryophyte vegetation of the gypsum outcrops of Sicily." Plant Sociology 59, no. 2 (December 7, 2022): 27–37. http://dx.doi.org/10.3897/pls2022592/03.

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A phytosociological study on the gypsicolous bryophyte communities of Sicily was carried out. The surveyed communities are: Tortuletum revolventis, Trichostomo crispuli-Tortuletum revolventis, Crossidio squamiferi-Aloinetum aloidis of the order Barbuletalia unguiculatae, and Crossidio crassinervis-Tortuletum obtusatae of the order Tortulo brevissimae-Aloinetalia bifrontis. The associations were examined from a synecological, synhierarchical and chorological point of view. A life form and life strategy analysis of all communities reflect the response of plant functional types towards the environmental demands. Only one life strategy dominates the communities; acrocarpous, turf-forming colonists clearly prevail on gypsum outcrops, subject to drought stress. They provide the main functional type within pioneering communities and communities of first successional stages. The keystone characters outlined ensure a successful dispersal, establishment and habitat maintenance of the species and associations.
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Šilc, Urban, and Andraž Čarni. "Conspectus of Vegetation Syntaxa in Slovenia." Hacquetia 11, no. 1 (January 1, 2012): 113–64. http://dx.doi.org/10.2478/v10028-012-0006-1.

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Conspectus of Vegetation Syntaxa in SloveniaFor the first time, an overview of plant communities in Slovenia is presented according to the Braun-Blanquet approach. In total 588 associations (and some communities classified into higher syntaxa) belonging to 51 classes have been registered in Slovenia. Additionally 149 syntaxa are mentioned as registered in the field or in, the literature, but not documented with relevé material. Syntaxonomical classification is based on the "EuroChecklist" and includes also the Slovenian written definition of the high-rank syntaxa.
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Shi, Yu, Xingjia Xiang, Congcong Shen, Haiyan Chu, Josh D. Neufeld, Virginia K. Walker, and Paul Grogan. "Vegetation-Associated Impacts on Arctic Tundra Bacterial and Microeukaryotic Communities." Applied and Environmental Microbiology 81, no. 2 (October 31, 2014): 492–501. http://dx.doi.org/10.1128/aem.03229-14.

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ABSTRACTThe Arctic is experiencing rapid vegetation changes, such as shrub and tree line expansion, due to climate warming, as well as increased wetland variability due to hydrological changes associated with permafrost thawing. These changes are of global concern because changes in vegetation may increase tundra soil biogeochemical processes that would significantly enhance atmospheric CO2concentrations. Predicting the latter will at least partly depend on knowing the structure, functional activities, and distributions of soil microbes among the vegetation types across Arctic landscapes. Here we investigated the bacterial and microeukaryotic community structures in soils from the four principal low Arctic tundra vegetation types: wet sedge, birch hummock, tall birch, and dry heath. Sequencing of rRNA gene fragments indicated that the wet sedge and tall birch communities differed significantly from each other and from those associated with the other two dominant vegetation types. Distinct microbial communities were associated with soil pH, ammonium concentration, carbon/nitrogen (C/N) ratio, and moisture content. In soils with similar moisture contents and pHs (excluding wet sedge), bacterial, fungal, and total eukaryotic communities were correlated with the ammonium concentration, dissolved organic nitrogen (DON) content, and C/N ratio. Operational taxonomic unit (OTU) richness, Faith's phylogenetic diversity, and the Shannon species-level index (H′) were generally lower in the tall birch soil than in soil from the other vegetation types, with pH being strongly correlated with bacterial richness and Faith's phylogenetic diversity. Together, these results suggest that Arctic soil feedback responses to climate change will be vegetation specific not just because of distinctive substrates and environmental characteristics but also, potentially, because of inherent differences in microbial community structure.
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Barnosky, Cathy. "Late-Glacial and Postglacial Vegetation and Climate of Jackson Hole and the Pinyon Peak Highlands, Wyoming." UW National Parks Service Research Station Annual Reports 11 (January 1, 1987): 55–59. http://dx.doi.org/10.13001/uwnpsrc.1987.2625.

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The objective of this study has been to describe the late-Quaternary vegetation of the Jackson Hole region and vicinity in order to clarify the nature and composition of ice-age communities, the rate and direction of plant migration during the recession of glaciers from the region, and the long-term stability of communities in the Park to environmental changes in the postglacial period. This information is necessary to assess the sensitivity of the Park's communities to environmental change and fill a critical gap in our understanding of the vegetational, climatic, and glacial history of the north-central Rocky Mountains as a whole.
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