scholarly journals Possible Poecilogony Due to Discontinuous Multifactorial Inheritance in Some Mediterranean Species of Raphitoma (Mollusca, Conoidea, Raphitomidae)

10.5772/67847 ◽  
2017 ◽  
Author(s):  
Thanasis Manousis ◽  
Constantinos Kontadakis ◽  
George Mbazios ◽  
Georgios Polyzoulis ◽  
Sofia Galinou-Mitsoudi
Keyword(s):  
Mediterranean Species ◽  
Multifactorial Inheritance

Comparative phenology and seasonal foliar nitrogen variation in mediterranean species of Portugal

1992 ◽  
Vol 18 (1) ◽  
pp. 7-18 ◽  
Author(s):  
Otilia Alves Correia ◽  
Ana Cristina Martins ◽  
Fernando M. Catarino
Keyword(s):  
Mediterranean Species ◽  
Foliar Nitrogen

scholarly journals Phytochemical Investigation of New Algerian Lichen Species: Physcia Mediterranea Nimis

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1121
Author(s):  
Marwa Kerboua ◽  
Monia Ali Ahmed ◽  
Nsevolo Samba ◽  
Radhia Aitfella-Lahlou ◽  
Lucia Silva ◽  
...  
Keyword(s):  
Functional Foods ◽  
Sesquiterpene Lactones ◽  
Diphenyl Ether ◽  
Lichen Species ◽  
Phytochemical Screening ◽  
Mediterranean Species ◽  
Esi Ms ◽  
Phytochemical Investigation ◽  
The Family ◽  
Nmr Techniques

The present study provides new data concerning the chemical characterisation of Physcia mediterranea Nimis, a rare Mediterranean species belonging to the family Physciaceae. The phytochemical screening was carried out using GC-MS, HPLC-ESI-MS-MS, and NMR techniques. Hot extraction of n-hexane was carried out, followed by separation of the part insoluble in methanol: wax (WA-hex), from the part soluble in methanol (ME-hex). GC-MS analysis of the ME-hex part revealed the presence of methylbenzoic acids such as sparassol and atraric acid and a diterpene with a kaurene skeleton which has never been detected before in lichen species. Out of all the compounds identified by HPLC-ESI-MS-MS, sixteen compounds are common between WA-hex and ME-hex. Most are aliphatic fatty acids, phenolic compounds and depsides. The wax part is characterised by the presence of atranorin, a depside of high biological value. Proton 1H and carbon 13C NMR have confirmed its identification. Atranol, chloroatranol (depsides compound), Ffukinanolide (sesquiterpene lactones), leprolomin (diphenyl ether), muronic acid (triterpenes), and ursolic acid (triterpenes) have also been identified in ME-hex. The results suggested that Physcia mediterranea Nimis is a valuable source of bioactive compounds that could be useful for several applications as functional foods, cosmetics, and pharmaceuticals.

scholarly journals The Impacts of Spatial Resolution, Viewing Angle, and Spectral Vegetation Indices on the Quantification of Woody Mediterranean Species Seasonality Using Remote Sensing

2021 ◽  
Vol 13 (10) ◽  
pp. 1958
Author(s):  
Shelly Elbaz ◽  
Efrat Sheffer ◽  
Itamar M. Lensky ◽  
Noam Levin
Keyword(s):  
Spatial Resolution ◽  
Seasonal Changes ◽  
Dominant Role ◽  
Vegetation Indices ◽  
Individual Species ◽  
Viewing Angle ◽  
Pixel Size ◽  
Mediterranean Species ◽  
Near Surface ◽  
Nadir Point

Discriminating between woody plant species using a single image is not straightforward due to similarity in their spectral signatures, and limitations in the spatial resolution of many sensors. Seasonal changes in vegetation indices can potentially improve vegetation mapping; however, for mapping at the individual species level, very high spatial resolution is needed. In this study we examined the ability of the Israel/French satellite of VENμS and other sensors with higher spatial resolutions, for identifying woody Mediterranean species, based on the seasonal patterns of vegetation indices (VIs). For the study area, we chose a site with natural and highly heterogeneous vegetation in the Judean Mountains (Israel), which well represents the Mediterranean maquis vegetation of the region. We used three sensors from which the indices were derived: a consumer-grade ground-based camera (weekly images at VIS-NIR; six VIs; 547 individual plants), UAV imagery (11 images, five bands, seven VIs) resampled to 14, 30, 125, and 500 cm to simulate the spatial resolutions available from some satellites, and VENμS Level 1 product (with a nominal spatial resolution of 5.3 m at nadir; seven VIs; 1551 individual plants). The various sensors described seasonal changes in the species’ VIs at different levels of success. Strong correlations between the near-surface sensors for a given VI and species mostly persisted for all spatial resolutions ≤125 cm. The UAV ExG index presented high correlations with the ground camera data in most species (pixel size ≤125 cm; 9 of 12 species with R ≥ 0.85; p < 0.001), and high classification accuracies (pixel size ≤30 cm; 8 species with >70%), demonstrating the possibility for detailed species mapping from space. The seasonal dynamics of the species obtained from VENμS demonstrated the dominant role of ephemeral herbaceous vegetation on the signal recorded by the sensor. The low variance between the species as observed from VENμS may be explained by its coarse spatial resolution (effective ground spatial resolution of 7.5) and its non-nadir viewing angle (29.7°) over the study area. However, considering the challenging characteristics of the research site, it may be that using a VENμS type sensor (with a spatial resolution of ~1 m) from a nadir point of view and in more homogeneous and dense areas would allow for detailed mapping of Mediterranean species based on their seasonality.

Pacific Spirorbids In The East Atlantic

1980 ◽  
Vol 60 (2) ◽  
pp. 461-464 ◽  
Author(s):  
E. W. Knight-Jones ◽  
Phyllis Knight-Jones
Keyword(s):  
Canary Islands ◽  
Mediterranean Species ◽  
East Atlantic ◽  
Volcanic Islands ◽  
Almost All

The faunas of volcanic islands must necessarily be introduced, and more recent introductions can be recognized by the patterns of their distributions. This is obvious in the Canary Islands, where we have spent 30 days studying distributions of Spirorbidae. We now regard these as a distinct family following Pillai (1970). We sampled all the major islands, by shore collecting and diving to about 10 m, and on almost all we found nine Mediterranean species, namely Protolaeospira striata (Quiévreux, 1963) and the eight opercular incubators (species of Pileolaria and Janua) that have been recorded from both Marseilles (Zibrowius, 1968) and Chios (Bailey, 1969).

Biotechnical Characteristics of Root Systems of Typical Mediterranean Species

2005 ◽  
Vol 278 (1-2) ◽  
pp. 23-32 ◽  
Author(s):  
Chiara Mattia ◽  
Gian Battista Bischetti ◽  
Francesco Gentile
Keyword(s):  
Root Systems ◽  
Mediterranean Species

Familial analysis of qualitative traits under multifactorial inheritance

1985 ◽  
Vol 2 (3) ◽  
pp. 301-315 ◽  
Author(s):  
John Rice ◽  
Theodore Reich ◽  
R. C. Elston
Keyword(s):  
Qualitative Traits ◽  
Multifactorial Inheritance

A PARTITION OF OUR CRYPTOCHILUS, WITH SOME NEW PSAMMOCHARIDAE (HYMENOPTERA)

1941 ◽  
Vol 73 (7) ◽  
pp. 119-122 ◽  
Author(s):  
Nathan Banks
Keyword(s):  
Mediterranean Species ◽  
European Species

The genus Cryptochilus is based on C. annulatus Fabr., a Mediterranean species; the pleura has numerous sharp carinae, the propodeum is striate, the antennae are fairly slender, the clypeus rather broadly concave below, the first recurrent vein ends near the tip of the second submarginal cell, the pronotum, seen from side, shows an even curve from behind down to the collar. Some other European species have the pleura less strongly striated. Several of our species agree fairly well in these characters; however there are others that show various differences.

The southern Palearctic genus Enneastigma Stein (Diptera: Anthomyiidae): Taxonomy of Mediterranean species, phylogeny and ancestral areas analysis

1994 ◽  
Vol 25 (4) ◽  
pp. 361-375 ◽  
Author(s):  
Verner Michelsen
Keyword(s):  
Cladistic Analysis ◽  
Alternative Methods ◽  
Mediterranean Species ◽  
Species Phylogeny ◽  
Males And Females ◽  
The Mediterranean ◽  
Small Genus

AbstractEnneastigma is a small genus of myopinine anthomyiids which comprises five species in the Mediterranean subregion (E. compressum Stein, E. rarum sp. n., E. rufitibia sp. n., E. triplex Loew, E. triseriatum Stein) and two species in SE Palearctic part of China (E. pilosiventrosum Fan & Chen, E. shanghaiensis Fan & Chen). All species appear to be univoltine and only active during the cooler parts of the season. The larvae may all be coprophagous. The Mediterranean species are revised with keys to males and females and illustrated descriptions of males, females and eggs. One lectotype is designated. A cladistic analysis was conducted which also included the Chinese species. This resulted in a single, most parsimonious phylogeny. The resulting area cladogram was used to assess the alternative methods for estimating ancestral areas as proposed recently by K. Bremer and F. Ronquist. It is concluded that the best results are obtained by using a refined Ronquist analysis.

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