scholarly journals Malacofaunal inventory in Chintamoni Kar Bird Sanctuary, West Bengal, India

2021 ◽  
Vol 13 (2) ◽  
pp. 17807-17826
Author(s):  
S.K. Sajan ◽  
Swati Das ◽  
Basudev Tripathy ◽  
Tulika Biswas
Keyword(s):  
Species Richness ◽  
Protected Areas ◽  
West Bengal ◽  
Land Snails ◽  
Faunal Composition ◽  
Marine Molluscs ◽  
As Species ◽  
The Family ◽  
Conservation Plan ◽  
First Time

The knowledge on the floral and faunal composition of protected areas (PAs) is crucial for formulating suitable conservation plan.  In this paper, inventory and species richness of non-marine molluscs of Chintamoni Kar Bird Sanctuary has been made and is for the first time from any PA of West Bengal.  A total of 276 specimens belonging to 22 species (10 species of land snails and 12 species of freshwater) of non-marine molluscs (land and freshwater) were collected and examined from this sanctuary.  The malacofaunal inventory comprises of nine genera under seven families among land snails and 12 genera & seven families from both gastropods & bivalves under the freshwater forms.  As far as species richness is concerned, the family Ariophantidae was found to be dominant among land forms whereas species of the families Thiaridae and Unionidae were dominant among freshwater forms.

scholarly journals Suchozemská malakofauna malokarpatských potočných jelšín a priľahlých porastov [Terrestrial molluscan assemblages in alder alluvial forests and adjacent forests in the Small Carpathians (SW Slovakia)]

2012 ◽  
Vol 11 ◽  
pp. 1-12
Author(s):  
Juraj Čačaný
Keyword(s):  
Species Richness ◽  
Freshwater Snail ◽  
Sensu Stricto ◽  
Land Snails ◽  
Freshwater Species ◽  
Ecological Groups ◽  
Alluvial Forests ◽  
Forest Sites ◽  
First Time ◽  
Alluvial Forest

A total of 56 species of land snails and 9 freshwater species were recorded at 22 alluvial forest sites (14 alder sites, 8 beech or hornbeam sites) in the Small Carpathian Mts. (SW Slovakia) during the researches in 2008–2009. Fifty two species were recorded in alder carrs and 32 species in adjacent forests. Woodland species sensu stricto (17 species, 32.7%) and euryecious species (10 species, 19.2%) predominated in alder forests. Dominant ecological groups in beech and hornbeam forests were woodland species sensu stricto (14 species, 43.8%) and woodland eurytopic species (6 species, 18.8%). There were 28 species (433 individuals) at the highest species richness site (Lozorno, alder carr). Generally, the species richness was higher in alder forests in comparison to beech or hornbeam forests. As expected, there was a higher number of species at the carbonate sites than non-carbonate sites. The following species were recorded in the Small Carpathian Mts. for the first time: Deroceras rodnae s. lat. Grossu et Lupu, 1965, Deroceras turcicum (Simroth, 1894) and freshwater snail Gyraulus rossmaessleri (Auerswald, 1852).

The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas

Zootaxa ◽  
2011 ◽  
Vol 3054 (1) ◽  
pp. 1 ◽  
Author(s):  
FRANCISCO J. BORRERO ◽  
ABRAHAM S.H. BREURE
Keyword(s):  
New Species ◽  
South America ◽  
Land Snails ◽  
The Family ◽  
First Time ◽  
Subjective Synonym

The land snails of the family Amphibulimidae occurring within northwestern South America are critically examined and notes on their distribution are given. The total number of taxa discussed is 61 (7 Dryptus, 54 Plekocheilus); of these, four Colombian Dryptus and 32 Plekocheilus species are included. The following new species are described: Plekocheilus (P.) bigener, P. (P.) incognitus, Plekocheilus (Eurytus) camaritagua, P. (E.) labiosus, and P. (E.) paraguas. The following nominal taxa are now synonymized: Plekocheilus (P.) speciosus (Pfeiffer, 1854) = P. (P.) plectostylus (Pfeiffer, 1848); Plekocheilus (Eurytus) couturesi Ancey, 1900 = P. (P.) glandiformis (Lea, 1838); Plekocheilus (Aeropictus) latilabris (Pfeiffer, 1855) = P. (A.) succineoides (Petit de la Saussaye, 1840); Plekocheilus (Eurytus) virgatus (Pilsbry, 1935) = P. (E.) mabillei (Crosse, 1867) = P. (E.) pulicarius (Reeve, 1848). Also, Simpulopsis fulguratus Miller, 1878 is now considered a junior subjective synonym of Simpulopsis (Eudioptus) citrinovitrea (Moricand, 1836). For the following species, precise localities are given for the first time: Dryptus stuebeli (Martens, 1885), Plekocheilus (Aeropictus) cathcartiae (Reeve, 1848), P. (E.) cardinalis (Pfeiffer, 1853), P. (Eurytus) episcopalis auriformis (Da Costa, 1904), P. (E.) episcopalis corticosus (Sowerby, 1895), and P. (E.) lynciculus (Deville & Huppé, 1850). Newly recorded for the Colombian malacofauna are the following taxa: Plekocheilus (P.) couturesi (Ancey, 1900), P. (Eurytus) piperitus (Sowerby I, 1837). The following taxa are excluded from the Colombian fauna: Dryptus funckii (Nyst, 1843), Plekocheilus (Aeropictus) veranyi (Pfeiffer, 1848), Plekocheilus (Eurytus) jimenezi (Hidalgo, 1872).

scholarly journals New Report of Dichotomosiphon tuberosus (A.Br.) Ernst and Vaucheria sessilis D.C. of the Family Vaucheriaceae from Hooghly District, West Bengal, India

2015 ◽  
Vol 21 ◽  
pp. 49-53
Author(s):  
Sankar Narayan Sinha ◽  
Nilu Halder
Keyword(s):  
New Record ◽  
West Bengal ◽  
Taxonomic Description ◽  
The Family ◽  
First Time

The present work deals with the morpho-taxonomic description of two species namely Dichotomosiphon tuberosus (A.Br.) Ernst and Vaucheria sessilis (Vauch.) D.C. of the family Vaucheriaceae under the order Heterosiphonales belonging to the class Xanthophyceae for the first time explored from Hooghly district, West Bengal, India. The two taxa constitute new record for the aforesaid district. ECOPRINT 21: 49-53, 2014  DOI: http://dx.doi.org/10.3126/eco.v21i0.11904

scholarly journals Oribatid mites communities (Acari: Oribatida) and their distribution in the tea (Camellia sinensis) plantation at Moc Chau plateau, Son La province

2018 ◽  
Vol 34 (2) ◽  
Author(s):  
Hà Trà My ◽  
Vũ Quang Mạnh ◽  
Trần Nam Hải
Keyword(s):  
Species Richness ◽  
Camellia Sinensis ◽  
Oribatid Mite ◽  
Soil Ecosystem ◽  
Tea Plantation ◽  
Soil Layers ◽  
Four Seasons ◽  
The Family ◽  
Systematic Structure ◽  
First Time

         In the period of 2014-2015, oribatid mite community (Acari: Oribatida) was investigated according to four seasons and three vertical layers in the soil ecosystem of the tea plantation (Camellia sinensis) at Moc Chau Plateau, province of Son La.         Identifies are 68 oribatid species, including 6 sp., belonging to 45 genera and 29 families. Among them 57 species are recorded for the first time for the study area, including 26 species are recorded new for Vietnam. The oribatid mite systematic structure of study area is not diverse. Tweenty out of 29 families identified were recorded with only one genus, and each genus recorded with one to two species. The family Oppiidae Grandjean, 1951 is the most diversified recocorded with 7 genera and 10 species.          According to seasons, oribatid species richness decreases in the following order: Spring >Winter >Autumn >Summer, respectively identified 35 >32 >31 >21 species. According to soil vertical layers, it decreases in the following order: (-1) >(-3) >(-2), respectively identified 43 >40 >32 species. The only species S. mahunkai, is recorded in all four seasons, and all three soil layers studied.

Araceae from Serra do Brigadeiro State Park, Minas Gerais, Brazil

Phytotaxa ◽  
2021 ◽  
Vol 497 (3) ◽  
pp. 229-246
Author(s):  
ELMAR J. HENTZ JÚNIOR ◽  
JANAINE K. HAMMES ◽  
MEL C. CAMELO ◽  
MARCUS A.N. COELHO ◽  
LÍVIA G. TEMPONI
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
Minas Gerais ◽  
Field Trips ◽  
Diagnostic Characters ◽  
The Family ◽  
Data Field ◽  
Forest Remnants ◽  
Floristic Studies ◽  
First Time

In Brazil, the family Araceae has 47 genera, approximately 519 species, 276 of which are endemic, it is characterized by the presence of the spadix associated with a bract, the spathe, and its one of the families with the highest species richness for the Atlantic Forest. This survey aims to inventory the Araceae of the Serra do Brigadeiro State Park (PESB), providing identification keys, descriptions, photos, and illustrations of diagnostic characters of the species, contributing to the Araceae Flora for Minas Gerais. To collect data, field trips were carried out in November 2018, July 2019, and February 2020, and the collected materials were deposited in the UNOP and RB herbaria. A total of 13 species, belonging to three genera, were documented. The genus Anthurium was the most diverse with eight species, followed by Philodendron with four species and Asterostigma with only one species. Through this survey, two species of Anthurium were found (A. atrovinosum and A. brigadeiroense) and recently described. Also, A. comtum, A. gladiifolium, and P. edmundoi are new for this area, and A. fontellanum was collected for the first time since 2004, reinforcing the importance of floristic studies and the conservation of Atlantic Forest remnants, such as the PESB.

Schmidleinema santiniketanense sp. nov. (Cyanobacteria/ Cyanoprokaryota) from a building facade in Santiniketan, India

Phytotaxa ◽  
2016 ◽  
Vol 283 (2) ◽  
pp. 181 ◽  
Author(s):  
NITIN KESHARI ◽  
SUDIPTA KUMAR DAS ◽  
SIBA PRASAD ADHIKARY
Keyword(s):  
West Bengal ◽  
Morphological Characters ◽  
Molecular Data ◽  
Phylogenetic Position ◽  
Rrna Gene ◽  
Rare Occurrence ◽  
Climatic Region ◽  
Consensus Tree ◽  
The Family ◽  
First Time

Schmidleinema is a monotypic genus in the family Fischerellaceae (Cyanobacteria / Cyanoprokaryota) with S. indicum is the sole species described so far. Due to its rare occurrence and reported only from a tropical climatic region, the taxon was not thoroughly studied, thus its taxonomic position is ubiquitous. No molecular data of the species is available so far. While studying the aero-terrestrial cyanobacterial flora of Santiniketan, West Bengal (India), a new Schmidleinema species, i.e. Schmidleinema santiniketanense sp. nov. was documented.  Light microscopic study of morphological characters of the species revealed its distinctness from the earlier descriptions of Schmidleinema indicum, particularly in the characteristics of sheath and branching pattern. Partial sequence of 16S rRNA gene of the species was obtained and deposited in GenBank for the first time. A consensus tree prepared with  sequences of different groups of  heterocystous and branched cyanobacteria retrieved from GenBank showed its phylogenetic position.

scholarly journals The fingernail clams (Bivalvia: Veneroida: Sphaeriidae) of Morocco: Diversity, distribution and conservation status

2021 ◽  
Vol 9 ◽  
Author(s):  
Hanane Rassam ◽  
Mohamed Ghamizi ◽  
Hassan Benaissa ◽  
Catharina Clewing ◽  
Christian Albrecht
Keyword(s):  
Species Richness ◽  
Conservation Status ◽  
Shell Morphology ◽  
General Distribution ◽  
Ecological Features ◽  
Morphometric Analyses ◽  
The Status ◽  
Conservation Plan ◽  
Fingernail Clams ◽  
First Time

In Morocco, many uncertainties surround the current diversity and distribution of the bivalve family Sphaeriidae. Such information, including taxonomy and conservation status, are vital for further studies to improve the knowledge of this family in Morocco and represents the first step towards the development of a national conservation plan for all freshwater bivalves. Between 2016 and 2019, several investigations were carried out to assess the diversity and distribution of Sphaeriidae in the different basins of Morocco, covering different types of habitat (lakes, springs, rivers and small ponds). The identification of specimens and their morpho-ecological features was based on morphological and morphometric analyses. The data on the general distribution of the collected species allowed the evaluation of their conservation status as well. The shell morphology and morphometric analyses revealed the existence of five species belonging to the genus Pisidium [P. casertanum (Poli, 1791), P. (cf.) personatum Malm, 1855, P. subtruncatum Malm, 1855, P. amnicum (O. F. Müller, 1774) and Pisidium sp.] and one species to the genus of Musculium [M. lacustre (O. F. Müller, 1774)]. Sphaeriidae were found in all Moroccan basins, except Bouregreg and Sakia El Hamra-Oued Eddahab Basins. The results showed that Sebou Basin was the species richest with the occurrence of the five species, while Loukkos and Sous-Massa Basins had the lowest-species richness with one species only. The conservation status of sphaeriids in Morocco was evaluated for the first time and resulted in P. (cf.) personatum and P. subtruncatum being proposed as Least Concern and Vulnerable, respectively, while the status of Regionally Extinct is suggested for both species P. amnicum and M. lacustre. First evaluation of the diversity and species richness of the family Sphaeriidae in Morocco with an assignment of an updated conservation status of the recorded species.

New Orthalicidae (Mollusca, Gastropoda) from Venezuelan Guayana: unravelling secrets from the Lost World

Zootaxa ◽  
2009 ◽  
Vol 2065 (1) ◽  
pp. 25-50 ◽  
Author(s):  
ABRAHAM S.H. BREURE
Keyword(s):  
Principal Component Analysis ◽  
New Species ◽  
Species Diversity ◽  
Abiotic Factors ◽  
Principal Component ◽  
Habitat Diversity ◽  
Land Snails ◽  
Forest Types ◽  
The Family ◽  
First Time

Land snails of the family Orthalicidae from Venezuelan Guayana are revised and the following new species are described: Drymaeus (D.) rex, Plekocheilus (Eurytus) huberi, P. (E.) nebulosus, P. (E.) sophiae, and P. (E.) tepuiensis. Drymaeus (D.) griffini Haas, 1955 is now placed in the synonymy of D. (D.) extraneus (Haas, 1955). In addition, the genitalia of Plekocheilus (Eurytus) tatei Haas, 1955 are described for the first time. Plekocheilus (Eudolichotis) gibber (Oberwimmer, 1931) is now considered a member of P. (Eurytus). As a consequence, Antitragus Oberwimmer, 1931 is now regarded a junior synonym of Eurytus Albers, 1850. Of the 16 taxa treated here, 14 are endemic to the table-top mountains (‘tepuis’) of this area. A Principal Component Analysis has been used to study the biotic and abiotic factors that may influence species diversity and distributions. Habitat diversity explained 65% of the variability and was mainly influenced by plant diversity, number of forest types, elevation and slope area of the tepuis.

Changes in the Trichoptera (Insecta) Communities from Corbii Ciungi Complex of Streams and Springs (Romanian Plain) in the Past Half Century

2016 ◽  
Vol 59 (1) ◽  
pp. 31-48
Author(s):  
Constantin Ciubuc
Keyword(s):  
Species Richness ◽  
Structural Parameters ◽  
Frequency Of Occurrence ◽  
Clear Indication ◽  
The Past ◽  
As Species ◽  
Past Half Century ◽  
First Time ◽  
Past Half

Abstract The paper presents a comparative analysis of the present day caddisfly communities structure with that of their previous structure, recorded about 45 years ago in several ecosystems of plain springs in the Romanian Plain, such as Valea Izvorului (Corbi Ciungi), in Motaş et al. (1962). Several structural parameters such as species richness, species diversity (H’), frequency of occurrence and sex ratio of some populations of adult Trichoptera were considered. 41 taxa belonging to nine families of Trichoptera were presently identified in comparison with only 14 taxa (adults and larvae) recorded in Motaş (op. cit.). Out of the 41 taxa, two are recorded for the first time in the Romanian fauna (Hydropsyche contubernalis ssp. iranica and Limnephilus tauricus). Seven out of the 14 taxa recorded by Motaş (op. cit.) disappeared completely from the studied spring ecosystems (Lype reducta, Halesus digitatus, Lithax obscurus, Notidobia ciliaris, Triaenodes bicolor, Adicella syriaca and A. filicornis). The disappearance of the seven species from the studied ecosystems and the occurrence of many species unrecorded by the previous studies which are not characteristic to mountain waters are a clear indication of the deterioration of the quality of those ecosystems, which led to a new structure of Trichoptera communities.

Non-camaenid land snails of the Kimberley and Northern Territory, Australia I. Systematics, affinities and ranges

1988 ◽  
Vol 2 (4) ◽  
pp. 455 ◽  
Author(s):  
A Solem
Keyword(s):  
Northern Territory ◽  
Land Snails ◽  
The Family ◽  
Near Future ◽  
First Time

All shell-bearing land snails found in the Kimberley and Northern Temtory, except those belonging to the family Camaenidae and the introduced Helicidae, are reviewed and illustrated. Several species introduced to other parts of Australia or neighbouring areas are included. They may already have been introduced and not yet collected, or undoubtedly will be introduced in the near future. This paper reports on 46 endemic and 11 introduced (or potentially introducible) taxa. An additional four extralimital species are figured for comparative purposes: Gastrocopta semiclausa Thiele, 1928; G. pontifex I. Rensch, 1937; Pumilicopta kamberae (B. Rensch, 1932); P. orientalis (B. Rensch, 1935). One genus, Pumilicopta, and the species Georissa obesa, Gastrocopta simplex, Pumilicopta kessneri, P. bifurcata, and Trochomorpha melvillensis, are described as new. Many taxa are recorded from Australia for the first time. Several changes in synonymy are proposed. The biogeographic implications of these records will be discussed in Part II.

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