Rashid M A Sheikh - Academia.edu (original) (raw)
Papers by Rashid M A Sheikh
Vertebrate Zoology
Based on 2354 bp of mitochondrial DNA (12S rRNA, ND4, cyt b) and 2573 bp of nuclear DNA (C-mos, O... more Based on 2354 bp of mitochondrial DNA (12S rRNA, ND4, cyt b) and 2573 bp of nuclear DNA (C-mos, ODC, R35), we re-examine the phylogenetic relationships of Nilssonia species. Individual and combined analyses of mitochondrial and nuclear DNA using Maximum Likelihood and Bayesian approaches confirm the monophyly of the genus. While mitochondrial data alone could not resolve the phylogenetic position of N. formosa, nuclear data support a sister group relationship of N. formosa and the remaining Nilssonia species. Combined analyses of mitochondrial and nuclear DNA suggest the following branching pattern, with N. formosa as the sister taxon of the remaining species: N. formosa + ((N. gangetica + N. leithii) + (N. hurum + N. nigricans)). Among the samples we studied is the first record of N. formosa for Yunnan, China, and the first record of wild-living N. nigricans for Bangladesh. In N. gangetica, each of the studied major river basins harbours a genetically distinct population, suggestin...
Journal of Advances in Biology & Biotechnology, 2016
A survey was conducted to study the biodiversity as well as the distribution of wild mushrooms, w... more A survey was conducted to study the biodiversity as well as the distribution of wild mushrooms, which naturally grow, in different localities, at different seasons, in the southern region of Bangladesh. A total 24 species of mushrooms belonging to 17 genera and 14 families were identified. Those mushrooms were collected between July and October, 2013 and 2014, accordingly from 16 sub-districts of Barisal, Patuakhali, Borguna, Pirojpur, Jhalokhathi districts, which situated in the southern region of Bangladesh. The identified genera were viz., Amanita sp., Agaricus sp., Ganoderma sp., Armillaria sp., Coprinus sp., Cortinarius sp., Hebeloma sp., Mycena sp., Lepiota sp., Lycoperdon sp., Macrolepiotia sp., Daldinia sp., Tuber sp., Volvariella sp., Steccherinum sp., Hypholoma sp. and Coprinellus sp. Moreover, the maximum frequency of occurrence in this survey was exhibited by Ganoderma applanatum, Amanita vaginata and Agaricus silvicola (18.75%), whereas, the maximum density was recorded for Coprinus silvaticus (48.83%). The collected specimens were deposited to SAU herbarium of mushroom flora (SHMF).
Journal of the Bombay Natural History Society, 1990
Intensive survey of the Ganges River Dolphin (Platanista gangetica gangetica) was conducted in th... more Intensive survey of the Ganges River Dolphin (Platanista gangetica gangetica) was conducted in the Padma, Jamuna and Hurashagar-Baral rivers of Pabna district, Bangladesh measuring 79 km during February-August’ 2011. Two methods were used i) by cruising in the rivers and ii) counting dolphins from land at randomly selected sections of the rivers. Seventy-two survey trips (upstream and downstream) were made by mechanized boats to estimate abundance and habitat use. A total of 331 dolphins were encountered during the upstream survey. Dolphin counts between dry and wet (monsoon) season varied significantly in the Jamuna River (p 0.05 at 95% CI). Overall dolphin sightings varied significantly between the Padma and Jamuna Rivers (p = 0.016 at 95% CI). Average linear encounter rate in the Padma River was 0.53 dolphin/km and in the Jamuna River 1.45 dolphins/kilometer. Age-class composition depending on size was 65% adults and 35% juveniles. A total of 174 dolphins were counted at eight si...
The World Bank Economic Review, 2021
Health, and in turn income and welfare, depend on access to safe drinking water. Although the maj... more Health, and in turn income and welfare, depend on access to safe drinking water. Although the majority of rural households worldwide obtain drinking water from community water sources, there is limited evidence about how effectively these sources provide safe drinking water. This study combines a randomized experiment with water quality testing to evaluate the impact of a program that provides community deep tubewells in rural Bangladesh. The program reduces exposure to arsenic, a major natural pollutant, but not fecal contamination. Households may use fewer sources with fecal contamination, but any such effects are offset by recontamination through transport and possibly storage. The results suggest that while community deep-tubewell construction programs may reduce exposure to arsenic in Bangladesh, reducing exposure to fecal contamination may require interventions that go beyond community sources.
Environment, Development and Sustainability, 2006
Blumea - Biodiversity, Evolution and Biogeography of Plants, 2009
The mangrove flora of the world consists of around 84 species, 36 genera in 26 families (Saenger ... more The mangrove flora of the world consists of around 84 species, 36 genera in 26 families (Saenger 2002). Among the members, the pan-tropical family Rhizophoraceae R.Br. comprising 16 genera and about 120 species of evergreen trees and shrubs (Hou 1958), is the richest mangrove family with four exclusively mangrove genera with 16 species (Saenger 2002). A detailed study of this family showed that an additional mangrove species could be included and possibly more new taxa may be added (Sheue 2003).
Check List, 2020
An annotated inventory of the herpetofauna of Lawachara National Park in Bangladesh is presented,... more An annotated inventory of the herpetofauna of Lawachara National Park in Bangladesh is presented, based primarily on original field observations recorded during a six-year survey of the park. A total of 71 species are reported, including 19 Anura, one Apoda, two Chelonii, and 49 Squamata. The course of the survey revealed 16 range extensions including 11 new country records for Bangladesh. Eight of the 16 range extensions including six of the 11 country records are reported here for the first time. Deleted from previous Lawachara National Park checklists are 23 species that had been erroneously reported due to misidentification, a species split, or the subsumption of the species within another taxa.
IOP Conference Series: Earth and Environmental Science, 2009
Bangladesh Journal of Animal Science, 2013
The study was conducted to know the present status of conservation and management of sea turtle i... more The study was conducted to know the present status of conservation and management of sea turtle in Coxs Bazar district. Data were collected by physical survey, interviewing people of the study area and from different non-government and government organizations during December 2010 to November 2011. In the present study, it was found that two species of sea turtles have been making nest in Bangladesh. Major nesting sites of turtles were St. Martin's Island, Teknaf, Bordal, Sonadia Island, Kutubdia Island, Pechardwip, Inani Beach, Moheskhali Island and Shahporirdwip. A total of 260 turtle individuals were found and the highest nesting frequency of Olive ridley (108) and Green turtles (10) were observed in February. About 21,942 hatchlings were produced and released by the hatcheries as a conservational step. Winter season was identified as nesting season for sea turtle. About 45% of the respondents thought that turtles were beneficial while other 40% of the respondents thought tu...
Ceriops zippeliana Blume is here reported as a new record for the mangrove forests in Singapore. ... more Ceriops zippeliana Blume is here reported as a new record for the mangrove forests in Singapore. The botanical description of this new record with color plates and a key to the two Ceriops species in Singapore are provided. It is noteworthy that C. tagal (Perr.) C. B. Rob. is rarer than C. zippeliana in Singapore. Thus, special attention for conservation should be focused on C. tagal and a further survey of this genus would provide valuable information to better manage Singapore's mangrove plant biodiversity.
Check List 16(5): 1239 - 1268, 2020
An annotated inventory of the herpetofauna of Lawachara National Park in Bangladesh is presented,... more An annotated inventory of the herpetofauna of Lawachara National Park in Bangladesh is presented, based primarily on original field observations recorded during a six-year survey of the Park. A total of 71 species are reported, including 19 Anura, one Apoda, two Chelonii, and 49 Squamata. The course of the survey revealed 16 range extensions including 11 new country records for Bangladesh. Eight of the 16 range extensions including six of the 11 country records are reported for the first time. Deleted from previous Lawachara National Park checklists are 23 species that had been erroneously reported due to misidentification or the splitting or synonymization of species.
Surveys conducted to assess the status and to identify suitable habitats for gharials (Gavialis g... more Surveys conducted to assess the status and to identify suitable habitats for gharials (Gavialis gangeticus) in Bangladesh revealed that suitable habitats still exist in some secluded areas of the River Padma (Ganges). One such area is Guhomabuna (N24 0 22'.365", E88 0 27'.677") in Rajshahi district adjoining the Indian border where adult gharials and hatchlings have frequently been sighted. This area shares the no-man's-land between Bangladesh and India and is relatively peaceful with low level threats. High sandy banks, deep pools serve as the nesting habitat and refuge for the gharials. The population of gharials in Bangladesh has reduced significantly; gharials once used to nest at Char Khidirpur, downstream of Guhomabuna. Upstream the Farakka Barrage hinders movement of the gharials so alternately the gharials might have chosen the tributaries/ distributaries of the Padma for their movement. Joint surveys by Bangladeshi and Indian biologists can shed more light and the area can be proposed for the creation of a trans-boundary gharial sanctuary setting an example of transboundary cooperation. Rivers for Life
Vertebrate Zoology
Based on 2354 bp of mitochondrial DNA (12S rRNA, ND4, cyt b) and 2573 bp of nuclear DNA (C-mos, O... more Based on 2354 bp of mitochondrial DNA (12S rRNA, ND4, cyt b) and 2573 bp of nuclear DNA (C-mos, ODC, R35), we re-examine the phylogenetic relationships of Nilssonia species. Individual and combined analyses of mitochondrial and nuclear DNA using Maximum Likelihood and Bayesian approaches confirm the monophyly of the genus. While mitochondrial data alone could not resolve the phylogenetic position of N. formosa, nuclear data support a sister group relationship of N. formosa and the remaining Nilssonia species. Combined analyses of mitochondrial and nuclear DNA suggest the following branching pattern, with N. formosa as the sister taxon of the remaining species: N. formosa + ((N. gangetica + N. leithii) + (N. hurum + N. nigricans)). Among the samples we studied is the first record of N. formosa for Yunnan, China, and the first record of wild-living N. nigricans for Bangladesh. In N. gangetica, each of the studied major river basins harbours a genetically distinct population, suggestin...
Journal of Advances in Biology & Biotechnology, 2016
A survey was conducted to study the biodiversity as well as the distribution of wild mushrooms, w... more A survey was conducted to study the biodiversity as well as the distribution of wild mushrooms, which naturally grow, in different localities, at different seasons, in the southern region of Bangladesh. A total 24 species of mushrooms belonging to 17 genera and 14 families were identified. Those mushrooms were collected between July and October, 2013 and 2014, accordingly from 16 sub-districts of Barisal, Patuakhali, Borguna, Pirojpur, Jhalokhathi districts, which situated in the southern region of Bangladesh. The identified genera were viz., Amanita sp., Agaricus sp., Ganoderma sp., Armillaria sp., Coprinus sp., Cortinarius sp., Hebeloma sp., Mycena sp., Lepiota sp., Lycoperdon sp., Macrolepiotia sp., Daldinia sp., Tuber sp., Volvariella sp., Steccherinum sp., Hypholoma sp. and Coprinellus sp. Moreover, the maximum frequency of occurrence in this survey was exhibited by Ganoderma applanatum, Amanita vaginata and Agaricus silvicola (18.75%), whereas, the maximum density was recorded for Coprinus silvaticus (48.83%). The collected specimens were deposited to SAU herbarium of mushroom flora (SHMF).
Journal of the Bombay Natural History Society, 1990
Intensive survey of the Ganges River Dolphin (Platanista gangetica gangetica) was conducted in th... more Intensive survey of the Ganges River Dolphin (Platanista gangetica gangetica) was conducted in the Padma, Jamuna and Hurashagar-Baral rivers of Pabna district, Bangladesh measuring 79 km during February-August’ 2011. Two methods were used i) by cruising in the rivers and ii) counting dolphins from land at randomly selected sections of the rivers. Seventy-two survey trips (upstream and downstream) were made by mechanized boats to estimate abundance and habitat use. A total of 331 dolphins were encountered during the upstream survey. Dolphin counts between dry and wet (monsoon) season varied significantly in the Jamuna River (p 0.05 at 95% CI). Overall dolphin sightings varied significantly between the Padma and Jamuna Rivers (p = 0.016 at 95% CI). Average linear encounter rate in the Padma River was 0.53 dolphin/km and in the Jamuna River 1.45 dolphins/kilometer. Age-class composition depending on size was 65% adults and 35% juveniles. A total of 174 dolphins were counted at eight si...
The World Bank Economic Review, 2021
Health, and in turn income and welfare, depend on access to safe drinking water. Although the maj... more Health, and in turn income and welfare, depend on access to safe drinking water. Although the majority of rural households worldwide obtain drinking water from community water sources, there is limited evidence about how effectively these sources provide safe drinking water. This study combines a randomized experiment with water quality testing to evaluate the impact of a program that provides community deep tubewells in rural Bangladesh. The program reduces exposure to arsenic, a major natural pollutant, but not fecal contamination. Households may use fewer sources with fecal contamination, but any such effects are offset by recontamination through transport and possibly storage. The results suggest that while community deep-tubewell construction programs may reduce exposure to arsenic in Bangladesh, reducing exposure to fecal contamination may require interventions that go beyond community sources.
Environment, Development and Sustainability, 2006
Blumea - Biodiversity, Evolution and Biogeography of Plants, 2009
The mangrove flora of the world consists of around 84 species, 36 genera in 26 families (Saenger ... more The mangrove flora of the world consists of around 84 species, 36 genera in 26 families (Saenger 2002). Among the members, the pan-tropical family Rhizophoraceae R.Br. comprising 16 genera and about 120 species of evergreen trees and shrubs (Hou 1958), is the richest mangrove family with four exclusively mangrove genera with 16 species (Saenger 2002). A detailed study of this family showed that an additional mangrove species could be included and possibly more new taxa may be added (Sheue 2003).
Check List, 2020
An annotated inventory of the herpetofauna of Lawachara National Park in Bangladesh is presented,... more An annotated inventory of the herpetofauna of Lawachara National Park in Bangladesh is presented, based primarily on original field observations recorded during a six-year survey of the park. A total of 71 species are reported, including 19 Anura, one Apoda, two Chelonii, and 49 Squamata. The course of the survey revealed 16 range extensions including 11 new country records for Bangladesh. Eight of the 16 range extensions including six of the 11 country records are reported here for the first time. Deleted from previous Lawachara National Park checklists are 23 species that had been erroneously reported due to misidentification, a species split, or the subsumption of the species within another taxa.
IOP Conference Series: Earth and Environmental Science, 2009
Bangladesh Journal of Animal Science, 2013
The study was conducted to know the present status of conservation and management of sea turtle i... more The study was conducted to know the present status of conservation and management of sea turtle in Coxs Bazar district. Data were collected by physical survey, interviewing people of the study area and from different non-government and government organizations during December 2010 to November 2011. In the present study, it was found that two species of sea turtles have been making nest in Bangladesh. Major nesting sites of turtles were St. Martin's Island, Teknaf, Bordal, Sonadia Island, Kutubdia Island, Pechardwip, Inani Beach, Moheskhali Island and Shahporirdwip. A total of 260 turtle individuals were found and the highest nesting frequency of Olive ridley (108) and Green turtles (10) were observed in February. About 21,942 hatchlings were produced and released by the hatcheries as a conservational step. Winter season was identified as nesting season for sea turtle. About 45% of the respondents thought that turtles were beneficial while other 40% of the respondents thought tu...
Ceriops zippeliana Blume is here reported as a new record for the mangrove forests in Singapore. ... more Ceriops zippeliana Blume is here reported as a new record for the mangrove forests in Singapore. The botanical description of this new record with color plates and a key to the two Ceriops species in Singapore are provided. It is noteworthy that C. tagal (Perr.) C. B. Rob. is rarer than C. zippeliana in Singapore. Thus, special attention for conservation should be focused on C. tagal and a further survey of this genus would provide valuable information to better manage Singapore's mangrove plant biodiversity.
Check List 16(5): 1239 - 1268, 2020
An annotated inventory of the herpetofauna of Lawachara National Park in Bangladesh is presented,... more An annotated inventory of the herpetofauna of Lawachara National Park in Bangladesh is presented, based primarily on original field observations recorded during a six-year survey of the Park. A total of 71 species are reported, including 19 Anura, one Apoda, two Chelonii, and 49 Squamata. The course of the survey revealed 16 range extensions including 11 new country records for Bangladesh. Eight of the 16 range extensions including six of the 11 country records are reported for the first time. Deleted from previous Lawachara National Park checklists are 23 species that had been erroneously reported due to misidentification or the splitting or synonymization of species.
Surveys conducted to assess the status and to identify suitable habitats for gharials (Gavialis g... more Surveys conducted to assess the status and to identify suitable habitats for gharials (Gavialis gangeticus) in Bangladesh revealed that suitable habitats still exist in some secluded areas of the River Padma (Ganges). One such area is Guhomabuna (N24 0 22'.365", E88 0 27'.677") in Rajshahi district adjoining the Indian border where adult gharials and hatchlings have frequently been sighted. This area shares the no-man's-land between Bangladesh and India and is relatively peaceful with low level threats. High sandy banks, deep pools serve as the nesting habitat and refuge for the gharials. The population of gharials in Bangladesh has reduced significantly; gharials once used to nest at Char Khidirpur, downstream of Guhomabuna. Upstream the Farakka Barrage hinders movement of the gharials so alternately the gharials might have chosen the tributaries/ distributaries of the Padma for their movement. Joint surveys by Bangladeshi and Indian biologists can shed more light and the area can be proposed for the creation of a trans-boundary gharial sanctuary setting an example of transboundary cooperation. Rivers for Life