Results 1 to 10 of about 743 (160)

Freshwater snail-borne parasitic diseases in Africa

Tropical Medicine and Health
Background Freshwater snails are the first obligatory intermediate hosts in the trematode life cycle. Several parasitic diseases transmitted by these snails are endemic in Africa, and their distribution closely follows that of the intermediate hosts ...
Papa Mouhamadou Gaye, Souleymane Doucouré, Doudou Sow, Cheikh Sokhna, Stéphane Ranque   +4 more
doaj   +3 more sources

Molecular Evolution of Freshwater Snails with Contrasting Mating Systems [PDF]

Molecular Biology and Evolution, 2015
Because mating systems affect population genetics and ecology, they are expected to impact the molecular evolution of species. Self-fertilizing species experience reduced effective population size, recombination rates, and heterozygosity, which in turn should decrease the efficacy of natural selection, both adaptive and purifying, and the strength of ...
Sylvain Glémin, Juan S Escobar, Nicolas Galtier   +2 more
exaly   +5 more sources

Significant Progress in the Study of African Freshwater Snails Over the Past 260 Years

Ecology and Evolution
Globally, freshwater ecosystems are threatened. Research progress concerning African freshwater snails was reviewed using a systematic review process. Since 1757, the number of publications produced has increased, particularly in the last decade.
Colleen Downs
exaly   +2 more sources

Preliminary Survey of Larval Trematodes in Freshwater Snails of Phitsanulok Province in Lower Northern Thailand

Iranian Journal of Parasitology, 2022
Background: Freshwater snails serve as intermediate hosts for a variety of trematodes that cause illness in the human and animal populations. Several species of freshwater snails in Thailand have been found to have larval trematode infections.
Jiranun Ardpairin, Abdulhakam Dumidae, Chanakan Subkrasae, Saengchai Nateeworanart, Aunchalee Thanwisai, Apichat Vitta   +5 more
doaj   +1 more source

Gut bacterial communities in the freshwater snail Planorbella trivolvis and their modification by a non-herbivorous diet [PDF]

PeerJ, 2021
The freshwater pulmonate snail Planorbella trivolvis is a common species in various bodies of water but is not native to China. Planorbella trivolvis usually live on diets with high fiber content, such as water grasses, algae and fallen leaves.
Zongfu Hu, Qing Tong, Jie Chang, Jianhua Yu, Shuguo Li, Huaxin Niu, Deying Ma   +6 more
doaj   +2 more sources

Identification and Determination of the Geographical Distribution of Freshwater Snails in Lorestan, Iran [PDF]

Archives of Razi Institute, 2019
Snails are creatures present in various ecosystems that, in addition to being present in human surroundings, some of them are also important in veterinary medicine and medicine as the intermediate hosts of Digenean trematodes.
M. H. Razi Jalali, M. Mirzaei, F. Jahangiri Nasr, H. Sharifi   +3 more
doaj   +1 more source

Type of cercaria in freshwater snails at Tunggu Pampang Reservoir, Makassar City, Indonesia

Инфекция и иммунитет, 2022
The Tunggu Pampang Reservoir is one of the reservoirs located in the city of Makassar. The functions of the reservoir area was tourist attractions and fish farming locations so that the local community uses them for swimming, fishing, selling, and ...
Arif Rahman Jabal, D. Mutiasari, H. Akbar, M. Arfah, M. Marhani, R. Rini, N. Sobak, A. J. Pisu, A. I. Toemon, A. Ratnasari   +9 more
doaj   +1 more source

The Respiration of Freshwater Snails [PDF]

Journal of Experimental Biology, 1959
ABSTRACT The oxygen consumption of some Danish freshwater snails was studied in relation to varying periods of starvation, varying temperatures, weight of animals and oxygen content of the water. The observed respiration is a moderately active metabolism, not a basal one.
Kaj Berg, K. W. Ockelmann
openaire   +1 more source

Spatial and seasonal distribution of human schistosomiasis intermediate host snails and their interactions with other freshwater snails in 7 districts of KwaZulu-Natal province, South Africa

Scientific Reports, 2023
The spatial and seasonal distribution, abundance, and infection rates of human schistosomiasis intermediate host snails and interactions with other freshwater snails, water physicochemical parameters, and climatic factors was determined in this study.
Onyekachi Esther Nwoko, Tawanda Manyangadze, Moses John Chimbari   +2 more
doaj   +1 more source

ENVIRONMENTAL STRESS AND THE MAINTENANCE OF SEX IN A FRESHWATER SNAIL [PDF]

Evolution, 1998
Synergism among mutations can lead to an advantage to sexual reproduction, provided mutation rates are high enough (the mutational deterministic hypothesis). Here we tested the idea that competition for food can increase the advantage to sexual reproduction, perhaps by increasing the synergism among mutations in asexual individuals.
Lively CM, Lyons EJ, Peters AD, Jokela J
openaire   +3 more sources