scholarly journals Fine-Scale Vegetation Characteristics Drive Insect Ensemble Structures in a Desert Ecosystem: The Tenebrionid Beetles (Coleoptera: Tenebrionidae) Inhabiting the Ulan Buh Desert (Inner Mongolia, China)

Insects ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 410
Author(s):  
Yiping Niu ◽  
Guodong Ren ◽  
Giulia Lin ◽  
Letizia Di Biase ◽  
Simone Fattorini
Keyword(s):  
Community Ecology ◽  
Plant Species ◽  
Abundant Species ◽  
Desert Ecosystem ◽  
Dominant Plant Species ◽  
Steep Decline ◽  
Ulan Buh Desert ◽  
Diversity Profiles ◽  
Common Plant ◽  
Rank Abundance

In community ecology, ensembles are defined as phylogenetically bounded groups of species that use a similar set of resources within a community. Tenebrionids are a conspicuous faunal component of Asian deserts, but little is known about their community ecology. We investigated if tenebrionids associated with different plant species constitute ensembles with a different ecological structure. Sampling was done with pitfall traps placed beneath the most common plant species. Tenebrionid abundance patterns were modelled by fitting rank–abundance plots. The association between tenebrionid species and plant species was tested using contingency tables. Differences in ensemble diversity were investigated by diversity profiles. All ensembles were fitted by the geometric series model. Tenebrionid species were differently associated with different plant species. Diversity profiles indicate that different ensembles have different diversity patterns, because of differences in species relative abundance. Tenebrionids form different ensembles associated with the different dominant plant species. All these ensembles are, however, characterized by similar patterns of dominance, following the “niche pre-emption” model, and a steep decline in the diversity profiles. This indicates that similar environmental conditions lead to similar insect ensemble organization, although the most abundant species may vary, which suggests a role for microhabitat selection.

scholarly journals Spatial and temporal plant phenological niche differentiation in the Wadi Degla desert ecosystem (Egypt)

2012 ◽  
Vol 71 (2) ◽  
pp. 261-277 ◽  
Author(s):  
Ahmad K. Hegazy ◽  
Abdelrahman A. Alatar ◽  
Jon Lovett-Doust ◽  
Hosam A. El-Adawy
Keyword(s):  
Plant Species ◽  
Niche Differentiation ◽  
Life Forms ◽  
Desert Ecosystem ◽  
Selective Pressures ◽  
Dominant Plant Species ◽  
Capparis Spinosa ◽  
Species Specific ◽  
Phenological Diversity ◽  
Study Species

AbstractTwenty dominant plant species representing different life forms were investigated phenologically over a period of 36 months (January 2004 to December 2006). Plant populations were sampled at down-, mid-, and upstream sites in a desert wadi ecosystem. The results were analyzed using TWINSPAN, DCA and CCA techniques. Five phenological niches were apparent: (1) species flowering all year round, with peaks in spring and autumn such asOchradenus baccatus; (2) species flowering during winter includingLycium shawiiandTamarix nilotica; (3) species flowering during spring, e.g.,Zillaspinosa, Zygophyllum coccineumandCapparis spinosa; (4) species flowering during summer includingIphiona mucronataandDeverra triradiata; and (5) species flowering during autumn that includeAtriplex halimusand twoAnabasisspecies. The climatic variables, including temperature, rainfall and relative humidity, affect the phenological niches and between-species differences. Within-species variations occurred between years and there were no between-site variations for most study species. The different plant species exhibited phenological diversity along the course of the wadi ecosystem. The phenological niches are species-specific and environmentally dependent rather than local selective pressures.

scholarly journals Photosynthetic parameters of a sedge-grass marsh as a big-leaf: effect of plant species composition

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Markéta Mejdová ◽  
Jiří Dušek ◽  
Lenka Foltýnová ◽  
Lenka Macálková ◽  
Hana Čížková
Keyword(s):  
Species Composition ◽  
Plant Species ◽  
Photosynthetic Parameters ◽  
Acorus Calamus ◽  
Dominant Plant Species ◽  
Local Plant ◽  
Rate Of Photosynthesis ◽  
Carex Acuta ◽  
Leaf P

AbstractThe study estimates the parameters of the photosynthesis–irradiance relationship (PN/I) of a sedge-grass marsh (Czech Republic, Europe), represented as an active “green” surface—a hypothetical “big-leaf”. Photosynthetic parameters of the “big-leaf” are based on in situ measurements of the leaf PN/I curves of the dominant plant species. The non-rectangular hyperbola was selected as the best model for fitting the PN/I relationships. The plant species had different parameters of this relationship. The highest light-saturated rate of photosynthesis (Asat) was recorded for Glyceria maxima and Acorus calamus followed by Carex acuta and Phalaris arundinacea. The lowest Asat was recorded for Calamagrostis canescens. The parameters of the PN/I relationship were calculated also for different growth periods. The highest Asat was calculated for the spring period followed by the summer and autumn periods. The effect of the species composition of the local plant community on the photosynthetic parameters of the “big-leaf” was addressed by introducing both real (recorded) and hypothetical species compositions corresponding to “wet” and “dry” hydrological conditions. We can conclude that the species composition (or diversity) is essential for reaching a high Asat of the “big-leaf ”representing the sedge-grass marsh in different growth periods.

scholarly journals Application of Polypodiopsida Class in Nanotechnology–Potential towards Development of More Effective Bioactive Solutions

Antioxidants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 748
Author(s):  
Irina Fierascu ◽  
Radu Claudiu Fierascu ◽  
Camelia Ungureanu ◽  
Oana Alexandra Draghiceanu ◽  
Liliana Cristina Soare
Keyword(s):  
Health Care ◽  
Plant Species ◽  
Plant Extracts ◽  
Antioxidant Properties ◽  
Drug Resistant ◽  
Future Perspectives ◽  
Real Potential ◽  
Toxic Potential ◽  
Common Plant ◽  
Common Plant Species

The area of phytosynthesized nanomaterials is rapidly developing, with numerous studies being published yearly. The use of plant extracts is an alternative method to reduce the toxic potential of the nanomaterials and the interest in obtaining phytosynthesized nanoparticles is usually directed towards accessible and common plant species, ferns not being explored to their real potential in this field. The developed nanoparticles could benefit from their superior antimicrobial and antioxidant properties (compared with the nanoparticles obtained by other routes), thus proposing an important alternative against health care-associated and drug-resistant infections, as well as in other types of applications. The present review aims to summarize the explored application of ferns in nanotechnology and related areas, as well as the current bottlenecks and future perspectives, as emerging from the literature data.

scholarly journals Short-term root and leaf decomposition of two dominant plant species in a Siberian tundra

Pedobiologia ◽  
2017 ◽  
Vol 65 ◽  
pp. 68-76 ◽  
Author(s):  
Peng Wang ◽  
Jasper van Ruijven ◽  
Monique M.P.D. Heijmans ◽  
Frank Berendse ◽  
Ayal Maksimov ◽  
...  
Keyword(s):  
Plant Species ◽  
Leaf Decomposition ◽  
Short Term ◽  
Dominant Plant Species

scholarly journals Genetic Diversity of Dominant Plant Species in Tropical Land-Use Systems in Sumatra, Indonesia

2018 ◽  
Vol 11 ◽  
pp. 194008291881390
Author(s):  
Natalie Breidenbach ◽  
Sri Rahayu ◽  
Iskandar Z. Siregar ◽  
Ulfah J. Siregar ◽  
Hamzah ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Land Use ◽  
Plant Species ◽  
Land Use Systems ◽  
Dominant Plant Species

scholarly journals Diversity and composition of plant species in the forest over limestone of Rajah Sikatuna Protected Landscape, Bohol, Philippines

2020 ◽  
Vol 8 ◽  
Author(s):  
Wilbert Aureo ◽  
Tomas Reyes ◽  
Francis Carlo Mutia ◽  
Reizl Jose ◽  
Mary Beth Sarnowski
Keyword(s):  
Plant Species ◽  
Conservation Strategies ◽  
Importance Value ◽  
Accumulation Curve ◽  
Representative Species ◽  
Special Area ◽  
Plant Families ◽  
Area Of Concern ◽  
Common Plant ◽  
Management And Conservation

Rajah Sikatuna Protected Landscape (RSPL), considered the last frontier within the Central Visayas region, is an ideal location for flora and fauna research due to its rich biodiversity. This recent study was conducted to determine the plant species composition and diversity and to select priority areas for conservation to update management strategy. A field survey was carried out in fifteen (15) 20 m x 100 m nested plots established randomly in the forest over limestone of RSPL from July to October 2019. Three hundred and sixty eight (368) species of plants were identified up to species level. This represented 327 angiosperms, one gymnosperm and 40 pteridophytes. Common plant families with more than 10 representative species were Moraceae, Meliaceae, Lauraceae, Dipterocarpaceae, Rubiaceae, Myrtaceae, Phyllanthaceae, Annonaceae, Araceae and Lauraceae. There were 93 (28%) endemic and 46 (14%) threatened species (vulnerable to critically endangered) observed. The cluster analysis and species accumulation curve suggests that plant species are not homogeneously distributed which implies that different management and conservation strategies should be implemented across RSPL. These results not only indicate the importance of RSPL, but also highlights areas with higher diversity and concentration of threatened and endemic species as a special area of concern. Furthermore, areas with high biodiversity value were recommended for immediate protection, while areas with low biodiversity value were recommended for reforestation programmes using species with high importance value.

scholarly journals Flora and vegetation of urbanized areas on the example of the Melekeska and Shukralinka valleys within Naberezhnye Chelny

2021 ◽  
Vol 10 (1) ◽  
pp. 97-101
Author(s):  
Dmitry Sergeevich Lyubarsky ◽  
Rimma Petrovna Tokinova
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Plant Associations ◽  
Tap Root ◽  
Adventive Flora ◽  
Middle Volga ◽  
Urbanized Areas ◽  
Common Plant ◽  
Flooded Areas ◽  
Ecological Types

The paper deals with the examination results of flora and vegetation of the Melekeska and Shukralinka valleys within Naberezhnye Chelny. The most common plant associations are identified, they are Bromopsetum variograminosum, B. varioherbosum, Festicetum variograminosum, Calamagrostetum epigeiosum; Phragmitetum australis associations are identified in the flooded areas. Anthropogenically altered areas with a high mosaicity of listed above associations communities and ephemeral weeds are widely represented. The volume and structure are shown in the areas flora. This area is subjected to constant anthropogenic load. Taxonomic and geographic analyses of flora as well as a range of vital forms and ecological types are submitted. 120 plant species from 94 genera and 40 families have been identified. The position of the leading families is like that in regional flora, Asteraceae, Poaceae, and Fabaceae are leading. Perennial polycarpic grasses especially long-rhizome (21,7%) and tap-root (15,0%) dominate among biomorphs (69,2%). Species with wide ranges are of paramount importance, they are Euro-West Asian (30,9%), Eurasian (27,5%), Holarctic (11,7%) and the percentage of alien species is 8,5%. Ruderal (36,7%), meadow (17,5%) and humid meadow (11,7%) species are leading in the ecological-coenotic spectrum. The adventive flora is represented by 16 species and it is briefly analyzed. Valley floras of some other Middle Volga rivers have been compared.

Sign in / Sign up

Export Citation Format

Share Document