SPECIES DIVERSITY IN THE TRIBE AGARICEAE PAT. (HIGHER BASIDIOMYCETES) OF ISRAEL MYCOBIOTA

1998 ◽  
Vol 46 (4) ◽  
pp. 315-330
Author(s):  
Solomon P. Wasser
Keyword(s):  
Species Diversity ◽  
Middle East ◽  
General Distribution ◽  
Taxonomic Study ◽  
Infraspecific Taxa

A taxonomic study of the tribe Agariceae Pat. (Higher Basidiomycetes) of Israel is given. The tribe Agariceae is represented by 38 species and infraspecific taxa related to 3 genera:MelanophyllumVel.,AgaricusL: Fr. emend. Karst., andGyrophragmiumMont. Three species:Agaricus boniiS. Wasser,A. nevoiS. Wasser, andA. herinkiiS. Wasser, were described as new for science earlier.Melanophyllum haematospermum(Bull: Fr.) Kreisel,Agaricus aestivalisMoell. var.flavotacta(Moell.) Moell.,A. bitorquis(Quél.) Sacc.,A. campestrisL: Fr. Var.floccipes(Moell.) Pil.,A. geesteraniiBas et Heinem.,A. gennadii(Chat. et Bond.) P.D. Orton var.microsporus(Bohus) S. Wasser,A. impudicus(Rea) Pil.,A. praeclaresquamosusFreeman,A. pequinii(Bond.) Konr. et Maubl.,A. silvaticusSchaeff. varpallensPil.,A. xanthodermaGen. var.lepiotoidesR. Mre,A. vaporarius(Pers.) Cappelli, andA. lanipes(Moell. et J. Schaeff.) Sing, are new for Israel and some of them for Asia or for the Middle East. Synonyms, locations, and dates of collection in Israel, peculiarities, general distribution, as well as taxonomic remarks to some taxa are given.

How uncertain are climate model projections of water availability indicators across the Middle East?

2010 ◽  
Vol 368 (1931) ◽  
pp. 5117-5135 ◽  
Author(s):  
Debbie Hemming ◽  
Carlo Buontempo ◽  
Eleanor Burke ◽  
Mat Collins ◽  
Neil Kaye
Keyword(s):  
Middle East ◽  
Water Availability ◽  
Large Scale ◽  
Drought Index ◽  
Climate Models ◽  
Climate Model ◽  
Regional Climate ◽  
General Distribution ◽  
The North ◽  
Run Off

The projection of robust regional climate changes over the next 50 years presents a considerable challenge for the current generation of climate models. Water cycle changes are particularly difficult to model in this area because major uncertainties exist in the representation of processes such as large-scale and convective rainfall and their feedback with surface conditions. We present climate model projections and uncertainties in water availability indicators (precipitation, run-off and drought index) for the 1961–1990 and 2021–2050 periods. Ensembles from two global climate models (GCMs) and one regional climate model (RCM) are used to examine different elements of uncertainty. Although all three ensembles capture the general distribution of observed annual precipitation across the Middle East, the RCM is consistently wetter than observations, especially over the mountainous areas. All future projections show decreasing precipitation (ensemble median between −5 and −25%) in coastal Turkey and parts of Lebanon, Syria and Israel and consistent run-off and drought index changes. The Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) GCM ensemble exhibits drying across the north of the region, whereas the Met Office Hadley Centre work Quantifying Uncertainties in Model ProjectionsAtmospheric (QUMP-A) GCM and RCM ensembles show slight drying in the north and significant wetting in the south. RCM projections also show greater sensitivity (both wetter and drier) and a wider uncertainty range than QUMP-A. The nature of these uncertainties suggests that both large-scale circulation patterns, which influence region-wide drying/wetting patterns, and regional-scale processes, which affect localized water availability, are important sources of uncertainty in these projections. To reduce large uncertainties in water availability projections, it is suggested that efforts would be well placed to focus on the understanding and modelling of both large-scale processes and their teleconnections with Middle East climate and localized processes involved in orographic precipitation.

scholarly journals Biological response to geochemical and hydrological processes in a shallow submarine cave

2015 ◽  
Vol 16 (2) ◽  
pp. 305 ◽  
Author(s):  
M. RADOLOVIĆ ◽  
T. BAKRAN-PETRICIOLI ◽  
D. PETRICIOLI ◽  
M. SURIĆ ◽  
D. PERICA
Keyword(s):  
Species Diversity ◽  
Water Column ◽  
Environmental Conditions ◽  
Biological Response ◽  
Middle Part ◽  
General Distribution ◽  
Dominant Group ◽  
Water Column Stratification ◽  
Light Gradient ◽  
Cave Environment

The Croatian coastal karst abounds in submerged caves that host a variety of environmental conditions depending on the geomorphology, depth and submarine groundwater discharge. One example is the Y-Cave, a shallow, mostly submerged, horizontal cave on Dugi Otok Island, on the eastern Adriatic coast. This study was aimed at examining the temporal and spatial variability of the marine cave environment, including temperature, salinity, light intensity, cave morphology and hydrodynamism, along with the dissolutional effect caused by the mixing of sea and freshwater. The general distribution of organisms in the Y-Cave was positively correlated to the light gradient and reduced water circulation, thus the highest species diversity and abundance were recorded in the front part of the cave. The phylum Porifera was the most dominant group, and the poriferan species diversity in the cave ranks among the ten highest in the Mediterranean. The middle part of the cave, although completely dark, hosts an abundant population of the gastropod Homalopoma sanguineum and clusters of the gregarious brachiopod Novocrania anomala, whose presence could be connected to tidal hydrodynamics. The absence/scarcity of sessile marine organisms and pronounced corrosion marks at shallow depths inside the cave suggest a freshwater impact in the upper layers of the water column. A year long experiment with carbonate tablets revealed three different, independent ongoing processes affected by the position in the cave: bioaccumulation, dissolution and mechanical erosion. The results of long-term temperature readings also revealed water column stratification within the cave, which was not disturbed by either tidal or wave action. The shallow, partly submerged and relatively small Y-Cave is characterised by a suite of complex environmental conditions, which, together with the resulting distribution of organisms, are unique to this cave.

Species diversity and spatial distribution of Begonia L. (Begoniaceae) in the Daweishan Range, Yunnan Province, China

Phytotaxa ◽  
2019 ◽  
Vol 415 (1) ◽  
pp. 1-31 ◽  
Author(s):  
WEN-HONG CHEN ◽  
SU-HUA HUANG ◽  
AUNG AUNG ◽  
HUI-KUN YUAN ◽  
YU-MIN SHUI
Keyword(s):  
Spatial Distribution ◽  
Species Diversity ◽  
Geographical Distribution ◽  
Yunnan Province ◽  
Southwestern China ◽  
Floristic Diversity ◽  
Infraspecific Taxa ◽  
Distribution And Ecology

Seven sections and 50 species and infraspecific taxa of Begonia have been recorded in the Daweishan Range of Yunnan Province, southwestern China. This work aims to analyze the relationships between their geographical distribution and ecology, review their floristic diversity, and elucidate the abundance and horticultural value of Begonia resources in this region.

Peltula pannarioides and P. rosulata (Peltulaceae), new lichen species from Baikal Siberia

2016 ◽  
Vol 50 ◽  
pp. 231-242 ◽  
Author(s):  
T. V. Makryi
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Lichen Species ◽  
Taxonomic Study ◽  
Widespread Species ◽  
Southern Siberia ◽  
Two New Species ◽  
Entire Complex

The objective of the study was to conduct a thorough anatomical, morphological and taxonomic study of the species of the lichen genus Peltula from Baikal Siberia belonging to the group with peltate-umbilicate sorediate thallus (euploca-bolanderi-type). Until now, among over 40 Peltula species, only four ones belonged to this group (P. africana, P. bolanderi, P. euploca and P. farinosa). In addition to the widespread species P. euploca, two new species have been identified, essentially different from all the four previously known members of the group, primarily by the expressed polyphyllous character of the thallus. Descriptions of the new species, P. pannarioides and P. rosulata, with their macro and micro photos and a map of their distribution, are provided. P. pannarioides is characterized by a thick polyphyllous thallus, upturned undulate sorediate margins of lobes, brown-grey reticulate-grained pruinose upper surface, large granulose soredia, thick cracked epinecral layer, and medulla composed of densely interwoven periclinally oriented hyphae. P. rosulata is characterized by thin polyphyllous thallus, upturned undulate sorediate margins of lobes, dark-brown, smooth, matte upper surface, large granulose soredia, thin continuous brownish epinecral layer, and medulla composed of loosely interwoven periclinally and anticlinally oriented hyphae. The territory of Baikal Siberia and of Southern Siberia as a whole may be regarded as one of the centers of the species diversity of genus Peltula, namely of the group of species with polyphyllous umbilicate sorediate thallus. The entire complex of the species with the euploca-bolanderi-type thallus requires more detailed study.

Family Mymaridae Haliday, 1833.

2021 ◽  
pp. 269-280
Author(s):  
Hassan Ghahari ◽  
Emilian Pricop ◽  
Gary A. P. Gibson ◽  
Mohammad Hayat ◽  
Gennaro Viggiani
Keyword(s):  
Species Diversity ◽  
United Arab Emirates ◽  
The Other ◽  
Taxonomic Study ◽  
Number Of Species ◽  
The Family ◽  
Former Ussr ◽  
World Distribution

Abstract This chapter provides a checklist for the family Mymaridae. It provides information on species diversity, host records, distribution records by province in Iran, as well as world distribution. Comparison of the mymarid fauna of Iran with adjacent countries indicates that the fauna of Russia (104 species) is much greater than that of Iran (33 species), followed by Turkey (19 species), Turkmenistan (11 species), Pakistan and United Arab Emirates (five species) and Iraq and Oman (both with one species); no species have been recorded from the other eight neighbouring countries. However, the much fewer number of species recorded from countries other than Russia, including Iran, certainly results from inadequate sampling and poor taxonomic study. Russia shares the highest number of known species with Iran (21 species), followed by Turkey (11 species), Turkmenistan (one species), Pakistan (two species) and Iraq, Oman, United Arab Emirates and the former USSR (each with one species).

Ticks and tick-borne diseases in the Middle East.

2021 ◽  
pp. 469-476
Author(s):  
Ali Reza Chavshin ◽  
Seyyed Javad Seyyed-Zadeh
Keyword(s):  
Species Diversity ◽  
Middle East ◽  
Expert Opinion ◽  
The Family

Abstract This expert opinion focuses on the diversity and distribution of ticks and tick-borne pathogens in the Middle East. From 12 countries in the Middle East where reports and articles were published, a total of 136 species of ticks have been reported. Of these, 111 species belong to the family Ixodidae and 25 species belong to the Argasidae. Reported species of the Ixodidae belong to eight genera (Hyalomma, 25; Rhipicephalus, 23; Haemaphysalis, 22; Ixodes, 20; Amblyomma, 10; Dermacentor, 6; Boophilus, 4; and Aponomma, 1 species), while the Argasidae belong to five genera (Ornithodoros, 13; Argas, 8; Alveonasus, 2; Carios, 1; and Otobius, 1 species). Based on the results of available reports, it seems that species belonging to the genera Hyalomma, Rhipicephalus, Haemaphysalis, Ixodes and Ornithodoros have the highest species diversity in the Middle East.

scholarly journals The genus Pinnularia (Bacillariophyta, Pinnulariaceae) from Lago dos Tigres, Britânia, Goiás, Brazil

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Weliton José da Silva ◽  
Daiane Ruwer ◽  
Ina Nogueira ◽  
Bárbara Dunck
Keyword(s):  
River Basin ◽  
First Record ◽  
The State ◽  
Aquatic Systems ◽  
Amazon River ◽  
Taxonomic Study ◽  
Amazon River Basin ◽  
Parana River ◽  
Araguaia River ◽  
Infraspecific Taxa

Studies of the genus Pinnularia Ehrenb. are only incipient in central-western Brazil, especially in Goiás. Only 20 of the 170 taxa known from Brazil were recorded in this state until now. A taxonomic study of Pinnularia from Lago dos Tigres (Tocantins-Araguaia River Basin) recorded 20 specific and infraspecific taxa, distributed in 17 species, including P. instabilis whose lectotype is designated here. Only P. meridiana var. meridiana was previously recorded in aquatic systems of the state. Eighteen taxa are newly recorded for Goiás, and one is the first record in Brazil. The Pinnularia flora from Lago dos Tigres contains nine taxa in common with the Amazon River Basin flora, and seven other taxa that occur elsewhere in the Paraná River Basin.

A taxonomic study of the large-glumed species of Stipa (Gramineae) occurring in Canada

1978 ◽  
Vol 56 (6) ◽  
pp. 606-625 ◽  
Author(s):  
Mary E. Barkworth
Keyword(s):  
Numerical Analysis ◽  
Cross Sections ◽  
Morphological Characters ◽  
Leaf Margin ◽  
Taxonomic Study ◽  
Separate Species ◽  
Distribution Maps ◽  
Quantitative Characters ◽  
Infraspecific Taxa ◽  
Stipa Comata

The morphology and awn anatomy of the large-glumed species of Stipa occurring in Canada were examined. Numerical analysis of the data indicates that S. spartea var. spartea and S. spartea var. curtiseta are very distinct taxa differing not only in many of their quantitative characters but also in nodal pubescence, ligule shape, and pubescence of the leaf margin. It is proposed that they be treated as separate species, S. spartea and S. curtiseta. Some evidence was found for differentiation within S. spartea s.s. but it was deemed insufficient for the recognition of infraspecific taxa. Stipa comata var. comata and S. comata var. intermedia are very similar in all morphological characters examined. Cross sections of their distal awn segments do, however, show consistent distinguishing characters; those of var. intermedia are more heavily lignified and tend to be square in outline compared with those of var. comata. Although similar to each other, cross sections of the varieties of S. comata are distinct from those of S. spartea and S. curtiseta. The possibility that certain specimens were hybrids between S. comata var. comata and S. curtiseta was explored and rejected. Distribution maps and a key to the accepted taxa are given.

scholarly journals Taxonomic review of genera Aeonium and Aichryson (Crassulaceae) in Eurasia

2021 ◽  
pp. 1-24
Author(s):  
V. V. Byalt ◽  
Keyword(s):  
Species Diversity ◽  
Species Distribution ◽  
Arabian Peninsula ◽  
General Distribution ◽  
Morphological Description ◽  
Large Species ◽  
Taxonomic Review ◽  
The Mediterranean

The article provides the first taxonomic review of two small genera Aeonium Webb et Berth. and Ayhrison Webb and Bert. (Crassulaceae H. St.-Hil.) in Eurasia. In Eurasia, these genera are at the limit of distribution and therefore there is no large species diversity. Information is given on 9 species of the genera Aeonium (6 species and 1 hybrid) and Aichryson (2 species), currently identified in Eurasia. In distribution, they are confined mainly to the Mediterranean and only one species is very rare in Front Asia on the Arabian Peninsula in Yemen. The article proposes lectotypes for three synonymous names in the genera Aichryson — Sempervivum dichotomum DC. and Aeonium — S. molle Vis. и S. caespitosum C. Sm. former Otto. The paper gives the keys to identify the species of Aeonium and Aichryson found in Eurasia, a brief synonymy for genera and species, morphological description for species, distribution in Eurasia and the general distribution of species. The article is illustrated by one photo.

scholarly journals A taxonomic study on Pteris L. (Pteridaceae) of Bangladesh

2021 ◽  
Vol 28 (1) ◽  
pp. 131-140
Author(s):  
Shi Yong Dong ◽  
AKM Haque Haque
Keyword(s):  
Species Diversity ◽  
Indian Subcontinent ◽  
Taxonomic Study ◽  
Key To Species ◽  
Pteris Cretica ◽  
Plant Taxon

Bangladesh lies in Indian subcontinent, an area rich in Pteris species. However, so far there is no modern account on the species diversity of Pteris in Bangladesh. Based on a thorough study of literature and limited specimens available to us, we currently recognize 15 species of Pteris in Bangladesh. Among these species, P. giasii is currently known only from Bangladesh; P. longipinnula, which has not been collected since 1858, was recently rediscovered in Sylhet. Pteris cretica, P. pellucida, P. quadriaurita var. quadriaurita, and P. quadriaurita var. setigera are excluded for the fern flora of Bangladesh. To facilitate the recognition of species, a key to species and brief notes for each species are provided. Bangladesh J. Plant Taxon. 28(1): 131-140, 2021 (June)

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