Plant diversity of the Heydari Wildlife Refuge in northeastern Iran, with a checklist of vascular plants

Phytotaxa ◽  
2018 ◽  
Vol 340 (2) ◽  
pp. 101 ◽  
Author(s):  
ZOHREH ATASHGAHI ◽  
HAMID EJTEHADI ◽  
MANSOOR MESDAGHI ◽  
FERESHTEH GHASSEMZADEH
Keyword(s):  
Plant Diversity ◽  
Vascular Plants ◽  
Life Form ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Transitional Zone ◽  
Mountain Range ◽  
Dissimilarity Index ◽  
Wildlife Refuge ◽  
Kopet Dagh

Heydari Wildlife Refuge (HWR) is located in Binalood mountain range of the Razavi Khorassan Province in Northeastern Iran. The area belongs to the central part of Khorassan-Kopet Dagh floristic province, which is a transitional zone between different phytogeographical units in the Irano-Turanian region. We investigated the floristic composition, life-form spectrum and the phytogeography of the area during 2014–2017 by collecting vascular plants and establishing 443 random-quadrats in representative stands of different vegetation types. A total of 588 vascular plant taxa (species and subspecies) belonging to 304 genera and 65 families are recorded as native and naturalized in the study area. The richest plant families are Asteraceae (40 genera/87 species), Fabaceae (15/72), Poaceae (33/60), Brassicaceae (33/49), Lamiaceae (19/32), and Apiaceae (18/27). The genera Astragalus (44 species), Cousinia (17), and Allium (10) are the richest ones. However, the dominant canopy cover belongs to Acantholimon, Astragalus, Artemisia, and Acanthophyllum species. Raunkiaer’s plant life-form spectrum in the area is dominated by hemicryptophytes (41.50%) and therophytes (28.06%). The core flora of HWR has the Irano-Turanian origin; the widespread elements are also well represented in the study area. Based on the Sørensen dissimilarity index, the HWR has about 50% dissimilarity to the adjacent areas. The study area is inhabited by several Iranian and/or Khorassan-Kopet Dagh endemic (19%), threatened (16%), and narrow-range plant species. The results indicate the importance of the HWR in the plant diversity of NE Iran.

Plant diversity of Ghorkhod Protected Area, NE Iran

Phytotaxa ◽  
2016 ◽  
Vol 249 (1) ◽  
pp. 118 ◽  
Author(s):  
FARSHID MEMARIANI ◽  
MOHAMMAD REZA JOHARCHI ◽  
HOSSEIN AKHANI
Keyword(s):  
Plant Species ◽  
Protected Area ◽  
Life Form ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Transitional Zone ◽  
Plant Groups ◽  
Wide Range ◽  
Plant Families ◽  
Ne Iran

Ghorkhod Protected Area (GPA) is located in a transitional zone among different biogeographical units in North Khorassan Province, NE Iran. The study area is mainly a mountainous region in western extensions of Khorassan-Kopet Dagh floristic province. We investigated the floristic composition, life form spectrum and phytogeography of the study area through several random collection efforts and 200 vegetation samples (reléves) in selected vegetation types during 2007–2012. A total of 663 vascular plant species belonging to 367 genera and 81 families are recorded as native and naturalized in GPA. Angiosperms and Dicots are among the most diverse plant groups. The richest plant families are Asteraceae (88 species), Poaceae (78), Lamiaceae (45), Brassicaceae (43), Fabaceae (38), and Caryophyllaceae (32). The genera Allium L. (17 species), Astragalus L. (15) and Cousinia Cass. (12) are the richest ones, however, the majority of the species belongs to oligotypic and monotypic genera. Life form spectrum of the study area is dominated by hemicryptophytes (38.9%) and therophytes (23.4%). Allium transvestiens Vved., Agropyron desertorum Schult., Helictotrichon turcomanicum Czopanov and Piptatherum latifolium (Roshev.) Nevski are recorded as new to Iran. The core flora of the area has the Irano-Turanian origin. However, the wide-range and widespread elements are also well represented in the study area. GPA is inhabited by several endemic, rare and narrow-range plant species, indicating the biodiversity importance of the study area in NE Iran.

Plant diversity of Khuzestan and dust sources in the southwest of Iran, with a checklist of vascular plants

Phytotaxa ◽  
2020 ◽  
Vol 434 (3) ◽  
pp. 219-254
Author(s):  
MEHRI DINARVAND ◽  
ZIBA JAMZAD
Keyword(s):  
Vascular Plants ◽  
Life Form ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Khuzestan Province ◽  
The North ◽  
Dust Sources ◽  
Terrestrial Habitats ◽  
Plant Families ◽  
Southwest Of Iran

Khuzestan province covers an area of 64236 square kilometers in the southwest of Iran and the border of Iraq. The area belongs to two regions, Irano-Turanian (IT) in the north and Sahara-Sindian in the south. An area with 349254 ha is the source of dust in Khuz province. We investigated the floristic composition, life-form spectrum and the phytogeography of the area during 2009–2018 by collecting vascular plants to provide an annotated checklist of the plants in Khuz province. In this time about two years focused on the vegetation of the septet areas of the source of dust and dune. Approximately 10,000 vascular plant specimens were collected from 13 types of terrestrial habitats and 15 types of wetlands. A total of 985 species and infraspecific taxa of vascular plants belonging to 487 genera and 93 plant families were recorded as native and naturalized in the study area. The richest families are Asteraceae (62 genera/132 species), Fabaceae (22/79), Poaceae (43/68), Brassicaceae (43/58), Lamiaceae (19/48), and Apiaceae (30/45). The genera Astragalus (20 species) and Convolvulus (14 species) are the most species-rich in Khuz. Raunkiaer’s plant life-form spectrum in the area is dominated by therophytes (33%) and hemicryptophytes (29%). The core flora of Khuz has the Irano-Turanian origin; the widespread elements are also well represented in the study area. The dust sources area includes four types of vegetation: wetland species, hygrophyte plants, terrestrial halophytes, and psammophytic plants. The main sources of dust rise are covered with two classes of vegetation (halophytes and pasmophytes), with 77 dune species, 43 species of salty soil places, and 28 species adapted to both climate and soil of the area.

scholarly journals Changes in plant diversity in a water-limited and isolated high-mountain range (Sierra Nevada, Spain)

Alpine Botany ◽  
2021 ◽  
Author(s):  
Andrea Lamprecht ◽  
Harald Pauli ◽  
Maria Rosa Fernández Calzado ◽  
Juan Lorite ◽  
Joaquín Molero Mesa ◽  
...  
Keyword(s):  
Species Richness ◽  
Snow Cover ◽  
Sierra Nevada ◽  
Plant Diversity ◽  
Endemic Species ◽  
Vascular Plant ◽  
Climate Change Impacts ◽  
Permanent Plots ◽  
High Mountain ◽  
Mountain Range

AbstractClimate change impacts are of a particular concern in small mountain ranges, where cold-adapted plant species have their optimum zone in the upper bioclimatic belts. This is commonly the case in Mediterranean mountains, which often harbour high numbers of endemic species, enhancing the risk of biodiversity losses. This study deals with shifts in vascular plant diversity in the upper zones of the Sierra Nevada, Spain, in relation with climatic parameters during the past two decades. We used vegetation data from permanent plots of three surveys of two GLORIA study regions, spanning a period of 18 years (2001–2019); ERA5 temperature and precipitation data; and snow cover durations, derived from on-site soil temperature data. Relationships between diversity patterns and climate factors were analysed using GLMMs. Species richness showed a decline between 2001 and 2008, and increased thereafter. Species cover increased slightly but significantly, although not for endemic species. While endemics underwent cover losses proportional to non-endemics, more widespread shrub species increased. Precipitation tended to increase during the last decade, after a downward trend since 1960. Precipitation was positively related to species richness, colonisation events, and cover, and negatively to disappearance events. Longer snow cover duration and rising temperatures were also related to increasing species numbers, but not to cover changes. The rapid biotic responses of Mediterranean alpine plants indicate a tight synchronisation with climate fluctuations, especially with water availability. Thus, it rather confirms concerns about biodiversity losses, if projections of increasing temperature in combination with decreasing precipitation hold true.

scholarly journals Reasons for an outstanding plant diversity in the tropical Andes of Southern Ecuador

2009 ◽  
Vol 12 ◽  
pp. 1-35 ◽  
Author(s):  
Michael Richter ◽  
Karl-Heinz Diertl ◽  
Paul Emck ◽  
Thorsten Peters ◽  
Erwin Beck
Keyword(s):  
Human Impact ◽  
Plant Diversity ◽  
Vascular Plant ◽  
Global Scale ◽  
Mountain Range ◽  
Tropical Andes ◽  
Constant Input ◽  
General Role ◽  
Southern Ecuador ◽  
The Impact

Long-term field studies in the scope of a multidisciplinary project in southern Ecuador revealed extraordinary high species numbers of many organismic groups. This article discusses reasons for the outstanding vascular plant diversity using a hierarchical scale-oriented top-down approach (Grüninger 2005), from the global scale to the local microscale. The global scale explains general (paleo-) ecological factors valid for most parts of the humid tropics, addressing various hypotheses and theories, such as the "greater effective evolutionary time", constant input of "accidentals", the "seasonal variability hypothesis", the "intermediate disturbance hypothesis", and the impact of soil fertility. The macroscale focuses on the Andes in northwestern South America. The tropical Andes are characterised by many taxa of restricted range which is particularly true for the Amotape-Huancabamba region, i.e. the so called Andean Depression, which is effective as discrete phytogeographic transition as well as barrier zone. Interdigitation of northern and southern flora elements, habitat fragmentation, geological and landscape history, and a high speciation rate due to rapid genetic radiation of some taxa contribute to a high degree of diversification. The mesoscale deals with the special environmental features of the eastern mountain range, the Cordillera Real and surrounding areas in southern Ecuador. Various climatic characteristics, the orographic heterogeneity, the geologic and edaphic conditions as well as human impact are the most prominent factors augmenting plant species diversity. On microscale, prevailing regimes of disturbance and environmental stresses, the orographic basement, as well as the general role on the various mountain chains are considered. Here, micro-habitats e.g. niches for epiphytes, effects of micro-relief patterns, and successions after small-sized disturbance events are screened. Direct effects of human impact are addressed and a perspective of possible effects of climate change on plant diversity is presented.

Alpine lichen-dominated communities in Alberta and the Yukon

1980 ◽  
Vol 58 (20) ◽  
pp. 2148-2170 ◽  
Author(s):  
Marianne G. See ◽  
L. C. Bliss
Keyword(s):  
Plant Communities ◽  
Vascular Plants ◽  
Regional Differences ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Yukon Territory ◽  
Strongly Correlated ◽  
Reciprocal Averaging ◽  
Floristic Similarity ◽  
North Central

Alpine lichen-dominated vegetation is described with emphasis upon floristic composition, quantitative structure, and distribution of lichen communities. Macrolichens and vascular plants were quantitatively sampled using stratified random quadrats (10 cm × 40 cm) in 40 stands (30 m × 5 m) in west-central Alberta and north central Yukon Territory. Comparable acid and basic substrates, and glaciated and unglaciated sites were sampled in each region. Bray-Curtis and reciprocal averaging ordinations were used to analyze vegetation data. For both macrolichens and vascular plants, floristic similarity is greater within each region than on equivalent substrates in different regions. Three alpine macrolichen communities are described in each region which exhibit pronounced regional differences. Cetraria tilesii and Thamnolia subuliformis characterize driest sites in both regions, while Cetraria cucullata indicates mesic habitats. Cladonia spp. dominate acidic Yukon sites; Stereocaulon alpinum and Peltigera aphthosa characterize equivalent Alberta habitats. Vascular plant communities are dominated by Dryas integrifolia and D. octopetala in Alberta and Yukon areas, respectively, with dwarf willow and heath in acidic, mesic sites. Distribution of alpine communities of macrolichens and corresponding vascular plants is more strongly correlated with substate pH and moisture, than with glaciation history. Comparison with other northern studies suggests that these macrolichen communities may be found throughout the Canadian Cordillera where equivalent habitats are present.

scholarly journals VARIABILITY OF THE COMPOSITION AND RATIO OF VASCULAR PLANT LIFE FORMS IN ECOTONE COMMUNITIES OF THE UPPER BORDER OF WOODY VEGETATION IN THE POLAR URALS

2020 ◽  
Vol 30 (1) ◽  
pp. 5-17
Author(s):  
N.I. Andreyashkina
Keyword(s):  
Vascular Plants ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Life Forms ◽  
Polar Urals ◽  
Plant Life Forms ◽  
Plant Life ◽  
Different Types ◽  
Species Similarity ◽  
The Polar Urals

For phytoindication of ecotopic conditions according to the degree of moisture and heat supply, full floristic composition was used in a number of communities and ecotopes within them. Different hydrothermal regimes of ecotopes underlie the distribution of life forms of vascular plants. The spatial heterogeneity of floristic diversity is largely due to a set of species of grassy life forms. Woody life forms are not numerous, but play a significant role in the structure of the vegetation cover. The species richness of communities naturally decreases during the transition from larch forests and woodlands to mountain tundras with single trees. At the same time, communities are largely similar in species composition, and the set of life forms is preserved, but the composition and ratio of different types of life forms change. The transition from smooth variability in the composition and ratio of life forms to markedly increased variability as a result of natural environmental factors is clearly visible, which is correspondingly reflected in a decrease in indicators of species similarity of communities.

scholarly journals Floristic Diversity of Riparian Plants in Aswan Reservoir at the Extreme South of the River Nile, Upper Egypt: A Closed Ecological System

2019 ◽  
Vol 16 (3) ◽  
pp. 595-609
Author(s):  
Mohamed O. Badry ◽  
Tarek A. A. Radwan ◽  
Fatma A. A. Ayed ◽  
Mohamed G. Sheded
Keyword(s):  
Vascular Plants ◽  
Life Form ◽  
Floristic Composition ◽  
Life Forms ◽  
Floristic Diversity ◽  
River Nile ◽  
Mediterranean Species ◽  
Riparian Plants ◽  
Polygonum Aviculare ◽  
Aswan Reservoir

The present study was undertaken to survey the floristic composition in the islands and shorelines in Aswan Reservoir, south of the River Nile at Aswan Governorate, Egypt. Four elements of vegetation were analyzed: floristic composition, lifespan, life form, and phytogeographical affinities. A total of 165 species were recorded belonging to 134 genera in 45 families of vascular plants, of which six species were new to the flora of Aswan and Nubia (Amaranthus spinosus, Doellia bovei, Eleocharis parvula, Haematoxylum campechianum, Polygonum aviculare, and Pithecellobium dulce). The most represented families are Leguminosae, Poaceae, and Compositae. Species richness is highest in low-lying areas (shorelines) liable to flooding, compared to those of the islands in the river. The recorded flora consists of 50.91% perennials and 49.09% annuals. Therophytes and phanerophytes were the predominant life forms. Phytogeographical analysis revealed the prevalence of the pantropical (28.48%), palaeotropical (17.57%), and cosmopolitan (16.36%) plant species. Monoregional chorotype was represented by 29 species (17.58%) of the recorded flora with the Sudano-Zambezian species (11.52%) being the highest chorotype, while pure Mediterranean species were very poorly represented (3.63%). Biregional chorotype was represented by 25 species (15.15%), while the pluriregional chorotype was accounted for 2.43% of recorded species.

scholarly journals Montane seasonal wetlands: an inventory of its associated flora in Parque Estadual do Ibitipoca, southeast Brazil

Rodriguésia ◽  
2020 ◽  
Vol 71 ◽  
Author(s):  
Ludymila Viana Valadares Cruz ◽  
Marco Otávio Dias Pivari ◽  
Luiz Menini Neto ◽  
Fátima Regina Gonçalves Salimena
Keyword(s):  
Vascular Plants ◽  
Life Form ◽  
Floristic Composition ◽  
Life Forms ◽  
Seasonal Wetlands ◽  
Floristic Survey ◽  
Minas Gerais State ◽  
Floristic Analysis ◽  
One New Species ◽  
Wetland Types

Abstract The aim of the present study was to perform the floristic survey of the wetlands of the Parque Estadual do Ibitipoca (PEIB), comparing them regarding richness, floristic composition and life forms, based on monthly expeditions to collect vascular plants. Eighty-one (81) species were found in the moist grassland, most of them being endemic to Brazil and included in 55 genera and 21 families. The most representative families were Asteraceae (22 spp.), Melastomataceae (nine spp.), Xyridaceae (seven spp.), Poaceae and Orchidaceae (six spp. each), totalizing 62% of the sampled species. Twenty-seven (27) species were found in the seasonal pond, distributed in 23 genera and 11 families. Families with the highest specific richness were Poaceae (eight spp.), Cyperaceae and Asteraceae (five spp. each), totalizing 67% of the sampled species. There was a predominance of hemicryptophyte life form (nearly 43% of the moist grasslands and 63% of the seasonal pond) in both areas. The floristic analysis results showed great importance to conservation with 22% of species under some threatened category, 12 species endemics to Minas Gerais state and one new species of Cyperaceae. Furthermore, only five species occur in both wetland types (5.1% of the species richness).

Vegetation of inselbergs in Zimbabwe

1998 ◽  
Vol 55 (2) ◽  
pp. 267-293 ◽  
Author(s):  
R. Seine ◽  
U. Becker ◽  
S. Porembski ◽  
G. Follmann ◽  
W. Barthlott
Keyword(s):  
Species Richness ◽  
Vegetation Cover ◽  
Vascular Plants ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Lichen Species ◽  
Rock Outcrops ◽  
Sparse Vegetation ◽  
First Time

Inselbergs are rounded rock outcrops, usually of Precambrian age, with sparse vegetation cover. The vegetation of inselbergs in Zimbabwe is described for the first time, based upon data sampled from 53 localities. Inselbergs support a range of habitats whose vegetation is described. Data on species richness and floristic composition of the inselberg flora (549 vascular plant, 25 bryophyte and 136 lichen species) are presented. Phytogeography and diversity of inselberg vegetation are discussed. First records for Zimbabwe are reported in lichens and vascular plants.

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