Resistance to Hurricane Effects Varies Among Wetland Vegetation Types in the Marsh–Mangrove Ecotone

We numerically classified tidal wetland vegetation and determined the relationships between variation in plant species composition and environmental factors. Sampling was conducted at eight sites along a range of tidal magnitudes (<2 to >14 m). Cluster analysis revealed seven distinct salt or brackish marsh plant associations, usually dominated by a single graminoid species. Redundancy analysis showed continuous variation among community units and identified inundation time, elevation, soil salinity, and organic matter content as key correlates of plant community patterns. Associations detected were similar to those found in New Brunswick’s Bay of Fundy and Northumberland Strait wetlands, and to those farther south in northern New England, but two new brackish associations were also identified within this study (Juncus balticus Willd. – Festuca rubra L. and Spartina pectinata Link). Although elevation is understood to drive vegetation types in salt marshes in the region, here we show that salinity can differentiate vegetation types at the same elevation. These data provide a quantitative baseline and allow for better predictions of tidal wetland ecological restoration trajectories in Nova Scotia.

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Evaluation of Polarimetric SAR Decomposition for Classifying Wetland Vegetation Types

Remote Sensing ◽

10.3390/rs70708563 ◽

2015 ◽

Vol 7 (7) ◽

pp. 8563-8585 ◽

Cited By ~ 25

Author(s):

Sang-Hoon Hong ◽

Hyun-Ok Kim ◽

Shimon Wdowinski ◽

Emanuelle Feliciano

Keyword(s):

Wetland Vegetation ◽

Vegetation Types ◽

Polarimetric Sar

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Herbaceous wetland vegetation in the aspen grove and grassland regions of Saskatchewan

Canadian Journal of Botany ◽

10.1139/b70-272 ◽

1970 ◽

Vol 48 (10) ◽

pp. 1861-1878 ◽

Cited By ~ 17

Author(s):

B. H. Walker ◽

R. T. Coupland

Keyword(s):

Environmental Factors ◽

Species Distribution ◽

Dominant Species ◽

Water Regime ◽

Environmental Control ◽

Environmental Gradients ◽

Habitat Type ◽

Wetland Vegetation ◽

Vegetation Types ◽

Species Frequency

Wetland vegetation in the aspen grove and grassland regions of Saskatchewan was examined with respect to vegetation types and environmental control of species distribution. Species frequency and presence and a number of environmental gradients were measured in 246 stands. Association analysis of the vegetation data resulted in 27 vegetation groups, distinct on the basis of species present. Owing to overriding effects of disturbance, nine of these groups show close similarities to one or more of the others on the basis of dominant species. Water regime, salinity, and disturbance are the three major gradients influencing species distribution. Combinations of these three gradients comprise 23 environmental categories into which the vegetation groups fall. The occurrence of different vegetation groups in the same habitat type is due partly to environmental factors other than those considered in this study and partly to succession.

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Plant Communities of Tasmanian Wetlands

Australian Journal of Botany ◽

10.1071/bt9830437 ◽

1983 ◽

Vol 31 (5) ◽

pp. 437 ◽

Cited By ~ 17

Author(s):

JB Kirkpatrick ◽

CE Harwood

Keyword(s):

Species Richness ◽

Plant Communities ◽

Wetland Vegetation ◽

Freshwater Wetlands ◽

Tidal Wetlands ◽

Vegetation Types ◽

Wetland Plant ◽

Wetland Plant Communities ◽

Floristic Variation

The macrophytic vegetation of Tasmanian wetlands consists of forest, scrub, marginal herbland, tussock sedgeland, sedgeland, reed swamp and aquatic herbland. More than 80 taxa dominate or codominate in at least one division of at least one of the 530 wetlands from which data were obtained. Communities dominated by each of 16 of these taxa occur in 10 or more wetlands and vary in mean richness from 4 to 18 species, richness increasing towards the margins of wetlands, with the area of wetland, and with decreasing salinity. A combination of salinity and permanence indices explains over one-third of the floristic variation between these communities; within freshwater wetlands, pH has more influence than the permanence index. The Tasmanian wetland flora is a subset of that of mainland Australia. Most Tasmanian wetland plant communities probably occur on the Australian mainland. Many of the wetland vegetation types discriminated on the mainland do not occur in Tasmanian non-tidal wetlands.

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COMPARISON OF SPOT AND LANDSAT DATA IN CLASSIFYING WETLAND VEGETATION TYPES

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xlii-3-w2-131-2017 ◽

2017 ◽

Vol XLII-3/W2 ◽

pp. 131-135

Author(s):

M. T. Mosime ◽

S. G. Tesfamichael

Keyword(s):

Spatial Resolution ◽

Field Data ◽

Landsat Imagery ◽

Google Earth ◽

Wetland Vegetation ◽

High Temporal Resolution ◽

Vegetation Types ◽

Landsat Images ◽

Vegetation Diversity ◽

Spot Imagery

The aim of this study was to compare the performances of Landsat and SPOT imagery to map wetland vegetation types in the Klipsriviersberg Nature Reserve, South Africa. The Gauteng Conservation Plan 3.3 (C-Plan 3) was used to delineate the boundaries of the wetlands in the study area. According to the plan, the proposed study area falls within the Critical Biodiversity Areas (CBA) and Ecological Support Areas (ESA). Limited field data were collected within the boundaries of the wetlands during summer 2015 when the vegetation cover was relatively high. These data identified features including sparse vegetation, dense vegetation, grassland and bare land.Additional samples were added from Google Earth image to increase sample size. Both the field data and Google Earth data were used as reference against which the performances of SPOT and Landsat product were compared. Unsupervised classification was used to classify SPOT and Landsat images acquired in summer 2015. The results showed that overall accuracy of SPOT images is higher than Landsat images. This is attributed to its high spatial resolution of 1.5&thinsp;m compared to 30&thinsp;m spatial resolution of Landsat imagery. This indicates that SPOT imagery is recommended to map wetland vegetation diversity in a localised area such as the study area. The current high temporal resolution of the image has also an added advantage that conservationists should exploit.

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WetVegEurope: a database of aquatic and wetland vegetation of Europe

Phytocoenologia ◽

10.1127/phyto/2015/0050 ◽

2015 ◽

Vol 45 (1) ◽

pp. 187-194 ◽

Cited By ~ 9

Author(s):

Flavia Landucci ◽

Marcela Řezníčková ◽

Kateřina Šumberová ◽

Milan Chytrý ◽

Liene Aunina ◽

...

Keyword(s):

Plant Species ◽

Wetland Vegetation ◽

European Countries ◽

Vegetation Types ◽

Marsh Plant ◽

Research Project ◽

Marsh Vegetation ◽

Future Studies ◽

Aquatic And Wetland Vegetation

WetVegEurope is a research project (http://www.sci.muni.cz/botany/vegsci/wetveg) whose goal is to provide a synthesized formalized classification of the aquatic and marsh vegetation across Europe at the level of phytosociological associations. In order to achieve the project objective, a WetVegEurope database has been created (GIVD ID: EU-00-020, http://www.givd.info/ID/EU-00-020), which currently contains 375,212 vegetation plots of aquatic, marsh and wet vegetation types from 33 European countries. The WetVegEurope database includes datasets from pre-existing national and thematic databases and also 10,616 plots previously not digitalized or even unpublished. This database offers an extensive source of data for future studies on aquatic and marsh plant species and vegetation types at the European scale.

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A New Species of Eugenia subg. Pseudeugenia (Myrtaceae, Myrteae) from Brazilian Atlantic Forest

Systematic Botany ◽

10.1600/036364420x15935294613518 ◽

2020 ◽

Vol 45 (3) ◽

pp. 537-543

Author(s):

Karinne Sampaio Valdemarin ◽

Jair Eustáquio Quintino Faria ◽

Fiorella Fernanda Mazine ◽

Vinicius Castro Souza

Keyword(s):

New Species ◽

Atlantic Forest ◽

Conservation Status ◽

Forest Vegetation ◽

Vegetation Types ◽

Flower Buds ◽

Diagnostic Features ◽

Closely Related Species ◽

Lowland Forests ◽

A New Species

Abstract—A new species of Eugenia from the Atlantic forest of Brazil is described and illustrated. Eugenia flavicarpa is restricted to the Floresta de Tabuleiro (lowland forests) of Espírito Santo state and is nested in Eugenia subg. Pseudeugenia. Considering all other species of the subgenus that occur in forest vegetation types of the Atlantic forest phytogeographic domain, Eugenia flavicarpa can be distinguished mainly by the combination of smooth leaves with indumentum on both surfaces, with two marginal veins, usually ramiflorous inflorescences, pedicels 4.5‐9.7 mm long, flower buds 3.5‐4 mm in diameter, and by the calyx lobes that are 2‐3 mm long with rounded to obtuse apices. Morphological analyses were performed to explore the significance of quantitative diagnostic features between the new species and the closely related species, Eugenia farneyi. Notes on the habitat, distribution, phenology, and conservation status of Eugenia flavicarpa are provided, as well as a key for all species of Eugenia subg. Pseudeugenia from forest vegetation of the Atlantic forest phytogeographic domain.

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