scholarly journals Effects of seasonal grazing and annual mowing on floristic composition and plant diversity in the Saral rangeland, Kurdistan, Iran

2021 ◽  
Vol 27 ◽  
pp. e01515
Author(s):  
Parviz Karami ◽  
Isa Bandak ◽  
Mahtab Gorgin Karaji ◽  
Deirdre Dragovich
Keyword(s):  
Plant Diversity ◽  
Floristic Composition ◽  
Seasonal Grazing

scholarly journals Floristic composition of government degree and PG College Campus, Wanaparthy, Mahabubnagar District, Telangana

2016 ◽  
Vol 5 (1) ◽  
pp. 45-66
Author(s):  
B. Sadasivaiah ◽  
M. Sharath Goud ◽  
R. Devilal ◽  
M. Laxmikanth ◽  
M. Uday Kumar ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Plant Diversity ◽  
Floristic Composition ◽  
Wild Relatives ◽  
College Campus ◽  
Wild Edible Plants ◽  
Edible Plants ◽  
Student Community ◽  
Fodder Plants ◽  
Good Number

The floristic components of Government Degree and PG College campus, Wanaparthy yield 355 plant taxa including 15 endemics at various levels. The results also showed that, good number of medicinal plants, wild relatives, fodder plants and wild edible plants. The results indicated that the college campus is very rich in plant diversity which is very useful to the student community for their study. International Journal of Environment Vol. 5 (1) 2016,  pp: 45-66

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 and Plant Performance of Indoor and Outdoor Vertical Greening Systems in Hong Kong

2020 ◽  
Vol 5 (14) ◽  
pp. 171-177
Author(s):  
Caroline Law ◽  
S.M. Li ◽  
C.Y. Lam
Keyword(s):  
Hong Kong ◽  
Plant Diversity ◽  
Publishing House ◽  
Floristic Composition ◽  
Plant Performance ◽  
Growing Medium ◽  
International Publishing ◽  
Vertical Greening ◽  
Open Access Article ◽  
Better Than

This study aimed to examine the plant diversity and plant performance of vertical greening system (VGS) and how the hardware setup (including growing substrates) potentially affect plant performance. A total of 125 VGS (including 85 outdoor and 40 indoor VGS) were surveyed in Hong Kong. We recorded the type of VGS, species composition, frequency and plant coverage; substrate medium type, and plant performance. The findings revealed that indoor soilless VGS performed comparably well as on conventional soil, and outdoor soilless VGS performed significantly better than on soil. Regardless of substrate type, plants on indoor VGS performed better than outdoor VGS. Keywords: Vertical greening system; Floristic composition; Growing medium; Plant performance eISSN: 2398-4287© 2020. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v5i14.2268

scholarly journals Floristic Composition, Diversity and Plant Community Along Elevational Gradients in the Afro-alpine Vegetation of Abohoy Gara Mountain, northern Ethiopia

2022 ◽  
Author(s):  
Muhidin Tahir ◽  
Yemane G. Egzabher ◽  
Meheretu Yonas ◽  
Kidane Giday ◽  
Hayal Lemma ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Diversity ◽  
Diversity Index ◽  
Floristic Composition ◽  
Elevational Gradient ◽  
Shannon Diversity Index ◽  
Community Type ◽  
Northern Ethiopia ◽  
Alpine Vegetation ◽  
Shannon Diversity

Abstract This research was conducted in Afro-alpine vegetation of Abohoy Gara Mountain in northern Ethiopia with the aim of analyzing floristic composition along elevational gradients, threats and conservation methods. Data were collected from 53 quadrats (15 m x 15 m) laid at 100 m interval along parallel vertical transects spaced at 500m to each other to record shrubs and trees, whereas 1 m x 1 m plots were used to record herbs. Cover abundance data were used to do community analysis using R version 3.1.2 software. Analysis of variance (ANOVA) was employed to determine significant level of species richness; abundance and Shannon diversity index along elevational gradient, whereas pearson’s correlation test was applied to check the relationship between environmental variables with species richness, species abundance and Shannon diversity index (H’) using SPSS v20. Ninety-seven plant species composed of 82 genera under 40 families were recorded. The mean number of plant species showed significant difference along elevational gradient (P < 0.05). Besides, significant (P < 0.05) negative correlation of elevation with the plant richness, abundance as well as Shannon diversity index had been observed. Based on dominant species, a total of five plant communities were identified. The maximum plant diversity occurred in community type III (3.79), whereas the least plant diversity occurred in community type IV and community type V. Vegetation cover and species composition of Abohoy Gara Mountain is being endangered by agricultural expansion, over grazing and logging of wood for construction material. Hence, it needs application of complementary on-site and offsite conservation approaches. This calls for further joint management of the Abohoy Gara Mountain by the local people and administrative bodies in the overall conservation actions that can save and rehabilitate the plant resources and their habitats.

Changes in Eocene plant diversity and composition of vegetation: the lacustrine archive of Messel (Germany)

Paleobiology ◽  
2018 ◽  
Vol 44 (4) ◽  
pp. 709-735 ◽  
Author(s):  
Olaf K. Lenz ◽  
Volker Wilde
Keyword(s):  
Plant Diversity ◽  
Middle Eocene ◽  
Floristic Composition ◽  
Alpha Diversity ◽  
Taxonomic Diversity ◽  
Federal State ◽  
Short Term ◽  
Temperature And Precipitation ◽  
Maar Lake ◽  
Higher Temperature

AbstractBased on high-resolution palynological analysis of 680 samples from a core, short-term changes in plant diversity and floristic composition within the Paleogene greenhouse were detected in the lacustrine succession of a lower to middle Eocene maar lake at Messel (Federal State of Hesse, Germany). The microfloristic data show that taxonomic diversity increased rapidly within some decades during recolonization of a volcanically devastated area around the lake. With the establishment of a climax vegetation at the end of recolonization, the maximum in palynological diversity was reached within the crater area. During the following 640 Kyr the composition of the palynospectrum changed only gradually. However, different richness and evenness estimations show that alpha and gamma diversity decreased up to 35%, which can be related to the establishment of an equilibrium stage within the climax vegetation that led to the dominance of an assemblage of self-replacing species. Nevertheless, time-series analysis of alpha-diversity changes within the climax vegetation reveals that orbitally controlled climate change of Milankovitch and sub-Milankovitch order influenced the diversity of the vegetation, resulting in a rise of beta diversity. Based on the composition of the vegetation and comparison to modern analogues, our analysis proves that Eocene paratropical plant diversity increased during periods of slightly higher temperature and precipitation. Therefore, both composition and diversity of the vegetation was highly susceptible to minor-scale, short-term changes in climate, even during equable greenhouse conditions.

scholarly journals Effects of Weed Control Practices on Plant Diversity in a Homogenous Olive-Dominated Landscape (South-East of Italy)

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1090
Author(s):  
Massimo Terzi ◽  
Emanuele Barca ◽  
Eugenio Cazzato ◽  
Francesco Saverio D’Amico ◽  
Cesare Lasorella ◽  
...  
Keyword(s):  
Weed Control ◽  
Plant Diversity ◽  
Weed Management ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Floristic Composition ◽  
Life Forms ◽  
Point Of View ◽  
Olive Groves ◽  
The Individual

Olive groves represent an important economic, agro-ecological, and cultural resource in the Mediterranean Basin. Weed management plays a fundamental role in their sustainable management. The aim of this work was to characterize and assess the plant diversity associated with different weed control practices, in a homogeneous olive-dominated landscape in the South-East of Italy. Sixty-five vegetation plots were sampled in orchards treated with different weed control practices: mowing, tillage, and use of chemical herbicides. The multi-response permutation procedure was used to test the hypothesis of no difference among the treatments. The relationships between plots were visualized by means of non-metric multidimensional scaling ordination. A generalized linear mixed model was used to analyze the relationships between weed control practices and life forms, chorotypes, and diversity indexes. The results showed that the three weed control practices determined slightly different plant communities. Chemically weeded orchards showed an impoverished floristic composition and the lowest diversity, whereas mowing and tillage yielded similar values. These latter two treatments differed for the percentages of hemicryptophytes and therophytes. Moreover, different from other studies, we did not find plant species of particular concern for biodiversity conservation. We hypothesize that this result is due to the monotonous structure of the agro-landscape we investigated, where natural elements are almost lacking. From this point of view, a correct management of agro-districts should consider both the agronomic practices at the level of the individual olive groves and the structure of the agro-landscape.

scholarly journals Floristic composition and distribution pattern of herbaceous plant diversity in fallow lands of the central districts of Punjab, India

2020 ◽  
Vol 12 (8) ◽  
pp. 15864-15880
Author(s):  
Jashanpreet Kaur ◽  
Rajni Sharma ◽  
Pushp Sharma
Keyword(s):  
Plant Species ◽  
Plant Diversity ◽  
Diversity Index ◽  
Similarity Index ◽  
Floristic Composition ◽  
Wiener Index ◽  
Diversity Indices ◽  
Herbaceous Plant ◽  
Dissimilarity Index ◽  
Fallow Lands

This study explores the change in composition of herbaceous plants with change in season and site in the fallow lands of central districts of Punjab, India.  Overall 41 plant species were reported from studied sites.  Poaceae and Asteraceae were recorded as dominant families with seven and six plant species, respectively.  Density and IVI values of perennial plant species were recorded to be the maximum from July to September and for annuals maximum values were from February to March and from July to September.  Diversity indices like Shannon Wiener index, evenness index, Menhinick index, and Simpson diversity index values showed variation with season and site.  Similarity index value between studied sites was recorded to be the minimum in July (0.45) which indicates a maximum value of dissimilarity index in this month.  The information generated in this study can be exploited by researchers for conservation of natural plant diversity and timely assessments of such areas help to study climate change. ,,,,,.

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