Phototrophic microflora of dystrophic Lake Sęczek, Masuria, Poland

2014 ◽  
Vol 43 (4) ◽  
Author(s):  
Magdalena Grabowska ◽  
František Hindák ◽  
Alica Hindáková
Keyword(s):  
Species Diversity ◽  
Green Algae ◽  
Lake District ◽  
Algal Communities ◽  
Ne Poland ◽  
Dystrophic Lake ◽  
Acidic Waters ◽  
Cyanobacteria And Algae ◽  
First Time ◽  
Small Forest

AbstractMicroflora of cyanobacteria and algae of small forest dystrophic Lake Sęczek located in the Masurian Lake District, NE Poland, was investigated in 2012 and 2013. A total of 16 genera with 7 species of cyanobacteria and 56 genera with 74 species, 6 varietas and forms of algae were determined. Most of them represented commonly occurring microorganisms of slightly acidic waters, but some of them are considered rare, i.e. the oscillatorian cyanobacterium Katagnymene accurata Geitler (for the first time found in Poland), and green algae Coenochloris sphagnicola Hindák, Mucidosphaerium sphagnale (Hindák) C. Bock, Pröschold et Krienitz, Closterium navicula (Bréb.) Lütkem., and Cosmarium cf. aphaerosporum var. corribense (W. et G.S. West) Krieger et Gerloff., which are described in more detail. As regards the species diversity, the plankton of the lake was rather species-poor in contrast to the algal communities in the Sphagnum littoral.

scholarly journals Checklist Of Fungi Of The Genus Russula From Belarusian-Valdai Lake District

2015 ◽  
Vol 21 (1) ◽  
pp. 22-33
Author(s):  
Pavel Kolmakov
Keyword(s):  
Species Diversity ◽  
The Other ◽  
Published Data ◽  
Lake District ◽  
Study Region ◽  
Rugged Terrain ◽  
Pskov Region ◽  
Herbarium Collections ◽  
First Time

AbstractThe species diversity of the genus Russula Pers. was studied at the northern part of Belarus and the southern part of Pskov region of Russia. The region of the study is characterized by numerous lakes and rugged terrain. The checklist of fungi of the genus Russula is based on the material collected by the author in 1999–2013 as well as the herbarium collections and published data of the other authors. The checklist encompasses 60 species, 28 of these were found to be rare in the area. R. azurea and R. favrei were reported for the first time in Belarus. Nineteen species – R. alutacea, R. atropurpurea, R. aurantiaca, R. brunneoviolacea, R. consobrina, R. fellea, R. grisea, R. heterophylla, R. laeta, R. mustelina, R. nitida, R. pectinatoides, R. pseudodelica, R. pseudointegra, R. rhodopoda, R. rosea, R. sanguinea, R. seperina and R. versicolor were reported for the first time in Pskov region. Most of the listed Russula species are widely distributed in Europe. Most species that are rare in the study region are uncommon in the whole Europe as well.

Supplement to biota of agaricoid basidiomycetes of Oksky Biosphere Reserve

2008 ◽  
Vol 42 ◽  
pp. 123-129
Author(s):  
E. F. Malysheva ◽  
L. F. Volosnova
Keyword(s):  
Species Diversity ◽  
Biosphere Reserve ◽  
Botanical Institute ◽  
Komarov Botanical Institute ◽  
First Time

New data on species diversity of agaricoid fungi of Oksky Biosphere Reserve are given. The checklist of 41 species with indication of their localities and herbarium numbers (of the Herbarium of the Komarov Botanical Institute, LE) is provided. Three species (Conocybe gigasperma, Entoloma occultopigmentatum, E. scabiosum) are recorded for the first time in Russia.

Hemiflagellochloris (Chlorophyceae, Chlorophyta), a new for Russian flora genus of green algae

2014 ◽  
Vol 48 ◽  
pp. 104-113
Author(s):  
A. D. Temraleeva ◽  
E. V. Mincheva ◽  
Yu. S. Bukin ◽  
M. V. Eltsov ◽  
V. A. Demkin ◽  
...  
Keyword(s):  
Green Algae ◽  
Molecular Analysis ◽  
18S Rdna ◽  
Phylogenetic Position ◽  
Rdna Gene ◽  
Algal Strain ◽  
The North ◽  
Volgograd Region ◽  
First Time ◽  
18S Rdna Gene

The genus Hemiflagellochloris Watanabe et al. was found in Russia for the first time. The algal strain was isolated from a buried solonetz in the zone of dry steppes (the north-end of Ergeni Hills, Volgograd Region). The morphology and ecology of this isolate are described. Its phylogenetic position within Chlorophyceae is determined by molecular analysis of 18S rDNA gene.

scholarly journals Remarkable Species Diversity of the Leafhopper Genus Xestocephalus (Hemiptera: Cicadellidae: Aphrodinae) in Thailand

Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 514
Author(s):  
Zonglei Liang ◽  
Christopher H. Dietrich ◽  
Wu Dai
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Single Species ◽  
Comparative Morphology ◽  
Malaise Trap ◽  
Field Sampling ◽  
Tropical Regions ◽  
Trap Field ◽  
The World ◽  
First Time

Xestocephalus Van Duzee is among the most common and widespread genera of Cicadellidae in the temperate and tropical regions of the world. In the present study, 205 specimens of the genus Xestocephalus were collected in Thailand, whereas only a single species of the genus was recorded previously using Malaise trap field sampling, studied by comparative morphology. Seventeen species were recognized, including twelve new species: X. binarius sp. nov., X. chrysanthemum sp. nov., X. cowboyocreus sp. nov., X. densprint sp. nov., X. dimiprocessus sp. nov., X. exproiecturus sp. nov., X. gracilus sp. nov., X. limpidissimus sp. nov., X. malleus sp. nov., X. nonattribus sp. nov., X. recipinams sp. nov., and X. tenusis Liang sp. nov. Four species were recorded in Thailand for the first time: Xestocephalus abyssinicus Heller and Linnavuori, Xestocephalus asper Linnavuori, Xestocephalus ishidae Matsumura, and Xestocephalus toroensis Matsumura. Detailed morphological descriptions of all 17 species are given; photographs of external habitus and male genitalia of the species from Thailand are provided. A checklist of species of the genus is also given, and a key to all Thailand Xestocephalus species is also provided.

scholarly journals Temporal and Spatial Dynamics of Dark Septate Endophytes in the Roots of Lycium ruthenicum in the Desert Region of Northwest China

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 648
Author(s):  
Li Han ◽  
Jingxin Shi ◽  
Chao He ◽  
Xueli He
Keyword(s):  
Species Diversity ◽  
Spatial Dynamics ◽  
Northwest China ◽  
Dark Septate Endophytes ◽  
Desert Ecosystems ◽  
Lycium Ruthenicum ◽  
Different Seasons ◽  
Application Potential ◽  
First Time ◽  
Hydrolyzable Nitrogen

With the intensification of desertification in northwest China, drought has become a serious environmental problem restricting plant growth and ecological restoration. Recently, dark septate endophytes (DSEs) have attracted more attention because of their ability to improve plants’ resistance to drought. Here, we investigated DSE colonization and species diversity in roots of Lycium ruthenicum collected from Anxi and Minqin, in northwest China, during July, September, and December 2019. This study aimed to evaluate the influence of seasonality and sampling sites on DSEs. In different seasons, DSE colonization varied with the phenology of L. ruthenicum. At different sites, DSE colonization significantly differed. Four isolates were reported in desert ecosystems for the first time. The results showed microsclerotial colonization was directly affected by changing seasons, while hyphal colonization and species diversity were directly affected by sampling sites. The soil organic carbon, pH, alkaline phosphatase, and alkali-hydrolyzable nitrogen were the main predictors of DSE colonization and species diversity. We conclude that DSE colonization and diversity showed significant spatial–temporal heterogeneity and were closely related to soil factors. This research provides a basis for the further understanding of the ecological functions of DSEs and their application potential for vegetative restoration and agricultural cultivation in drylands.

Species diversity and abundance of Dacus (Diptera: Tephritidae) in five ecosystems of Penang, West Malaysia

1982 ◽  
Vol 72 (4) ◽  
pp. 709-716 ◽  
Author(s):  
Tan Keng-Hong ◽  
Lee Soo-Lam
Keyword(s):  
Species Diversity ◽  
Capsicum Annuum ◽  
Fruits And Vegetables ◽  
Methyl Eugenol ◽  
Dacus Dorsalis ◽  
The Difference ◽  
Vegetable Farm ◽  
First Time

AbstractDacus dorsalis Hend. infested eleven, D. cucurbitae Coq. five and D. umbrosus F. two of the eighteen common fruits and vegetables grown in Penang, West Malaysia. D. tau (Wlk.) infested bacang (Mangifera foetida), D. caudatus F. chilli (Capsicum annuum) and D. frauenfeldi Schin. water guava (Eugenia javanica), together with D. dorsalis. Pomelo (Citrus grandis) was found infested for the first time by D. cucurbitae. No flies were trapped using Capilure and trimedlure as baits. Cue-lure attracted D. caudatus, D. cucurbitae, D. frauenfeldi, D. occipitalis (Bez.) and D. tau. Methyl eugenol attracted D. dorsalis and D. umbrosus. Dorsalure was less attractive to D. caudatus and D. dorsalis than cue-lure and methyl eugenol, respectively, but it was equally attractive to D. frauenfeldi as cue-lure. Using traps baited with cue-lure or methyl eugenol in five ecosystems, the highest numbers of males of D. dorsalis, D. umbrosus, D. frauenfeldi and D. caudatus trapped were from a village, on a vegetable farm for D. cucurbitae, and D. occipitalis was only caught in a forest. Analysis showed that for each species of Dacus the difference between ecosystems was highly significant. The few examples caught in grassland were probably migrants.

On the Baeocera Erichson (Coleoptera: Staphylinidae: Scaphidiinae) of Sabah, Malaysia, and a tale on mystified biodiversity

2021 ◽  
Vol 23 (2) ◽  
pp. 23-42
Author(s):  
IVAN LÖBL ◽  
ALEŠ SMETANA
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Key Words ◽  
Sampling Methods ◽  
Biodiversity Study ◽  
First Time

Quantitative attemps to assess species diversity in the absence of a robust taxonomy are questioned. In addition, the sampling methods may be a major source of uncertainty, as illustrated in a commented biodiversity study of the Coleoptera of Sabah. The Sabah members of the staphylinid genus Baeocera Erichson are reviewed and keyed, the following new species are described: B. omnigena Löbl sp. nov., B. rudis Löbl sp. nov., B. secreta Löbl sp. nov., B. sedata Löbl sp. nov., B. segregata Löbl sp. nov., B. seiugata Löbl sp. nov., B. semirufa Löbl sp. nov. Baeocera barbara Löbl, B. obliqua (Löbl), B. rufula (Löbl) and B. serendibensis (Löbl) are reported for the first time from Malaysia, B. doriae (Pic) and B. sarawakensis Löbl are new to Sabah and B. kinabalua Löbl is new to Sarawak. Key words: biodiversity, trends, taxonomy, insects, shining fungus beetles, Borneo

scholarly journals Seasonal variations in response of periphytic algal community to nutrient enrichment in the river Ganga (Varanasi, India)

2018 ◽  
Vol 54 ◽  
pp. 32 ◽  
Author(s):  
Arpana Yadav ◽  
Dhananjay Kumar ◽  
Ram Sharan Singh ◽  
Lalit K. Pandey ◽  
Jyoti Rai
Keyword(s):  
High Temperature ◽  
Species Diversity ◽  
River Water ◽  
Green Algae ◽  
Nutrient Enrichment ◽  
Seasonal Variations ◽  
Algal Community ◽  
Phosphate Limitation ◽  
River Ganga ◽  
Time Periods

Effect of nutrient enrichment on periphyton was studied using chemical diffusing substrates that released, singly or in combination, PO43−-P and nitrogen, both NO3−-N and NH4+-N. The study was carried out in March and June 2014 as these two time periods showed abundance of different groups of algae. Whereas diatoms and green algae were abundant in March, cyanobacteria dominated in June. Nitrogen was primarily growth limiting in river water as its enrichment enhanced the growth of periphyton. Phosphate limitation was secondary in nature. Enrichment of NH4+-N caused greater enhancement of periphytic growth than that of NO3−-N. Nutrient enrichment reduced species diversity, further enhancing total biovolume of the periphytic group that was predominant at that particular point of time. Nutrient enrichment markedly increased cyanobacterial populations in June due inter alia to high temperature. In spite of nutrient enrichment, the periphytic biomass did not reach the level (chla≥ 100–150 mg m−2) considered as the nuisance, except in March when combined enrichment of PO43−-P and NO3−-N greatly enhanced the periphytic biomass.

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