Results 21 to 30 of about 7,104 (207)
Clonal diversity driven by parasitism in a freshwater snail [PDF]
AbstractOne explanation for the widespread abundance of sexual reproduction is the advantage that genetically diverse sexual lineages have under strong pressure from virulent coevolving parasites. Such parasites are believed to track common asexual host genotypes, resulting in negative frequency‐dependent selection that counterbalances the population ...
Dagan Y. +3 more
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The management of ecosystem has been a major contributor to the control of diseases that are transmitted by snail intermediate hosts. The ability of freshwater snails to self-fertilize, giving rise to thousands of hatchlings, enables them to contribute ...
Opeyemi G Oso, Alex B Odaibo
doaj +1 more source
Type of cercaria in freshwater snails at Tunggu Pampang Reservoir, Makassar City, Indonesia
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 +9 more
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Exposure to parasites increases promiscuity in a freshwater snail [PDF]
Under the Red Queen hypothesis, outcrossing can produce genetically variable progeny, which may be more resistant, on average, to locally adapted parasites. Mating with multiple partners may enhance this resistance by further increasing the genetic variation among offspring.
Soper, D. M. +3 more
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Camouflaged or tanned: plasticity in freshwater snail pigmentation [PDF]
By having phenotypically plastic traits, many organisms optimize their fitness in response to fluctuating threats. Freshwater snails with translucent shells, e.g. snails from the Radix genus, differ considerably in their mantle pigmentation patterns, with snails from the same water body ranging from being completely
Johan, Ahlgren +3 more
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Marsh Rams-Horn, Marsh Ramshorn Helisoma (Planorbella) trivolvis (Say) (Gastropoda: Planorbidae)
The marsh rams-horn, Helisoma (Planorbella) trivolvis (Say), is a species of air-breathing freshwater aquatic snail that is native to Florida. It belongs to the family Planorbidae, commonly known as the ramshorn snail, which comes from the shape of its ...
Carrie Suen +1 more
doaj +3 more sources
Freshwater snails are a crucial benthic animal group that plays a pivotal role in algae regulation and ecosystems while serving as intermediate hosts for certain parasites.
Chunhua Zhou +6 more
doaj +1 more source
Background. Schistosomiasis is caused by Schistosoma mansoni and S. haematobium in Africa. These schistosome parasites use freshwater snail intermediate hosts to complete their lifecycle.
Tamirat Hailegebriel +2 more
doaj +1 more source
Evidence for adaptive explanations of semelparity in animals
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher +1 more
wiley +1 more source
The freshwater prosobranch snails fagotia in Turkey
Tatlısı Prosobranch türü Fagotia’nın Türkiye’de günümüzde yaşayan üç türü vardır. Bunlardan iki tanesi pontian kökenlidir. Bir türü ise Anadolu kara parrçası için endemic olduğu düşünülüyor. Pleistosende maydana gelen jeolojik gelişmelere gore göç yolları açıklanmaya çalışılmış ve diğer pontian türlerle bağlantıları ortaya ...
ŞEŞEN, Rıdvan, SCHÜTT, Hartwig
openaire +3 more sources

