Results 21 to 30 of about 7,104 (207)

Clonal diversity driven by parasitism in a freshwater snail [PDF]

open access: yesJournal of Evolutionary Biology, 2013
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
openaire   +3 more sources

Land use/land cover change, physico-chemical parameters and freshwater snails in Yewa North, Southwestern Nigeria.

open access: yesPLoS ONE, 2021
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

open access: yesИнфекция 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   +9 more
doaj   +1 more source

Exposure to parasites increases promiscuity in a freshwater snail [PDF]

open access: yesBiology Letters, 2014
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
openaire   +2 more sources

Camouflaged or tanned: plasticity in freshwater snail pigmentation [PDF]

open access: yesBiology Letters, 2013
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
openaire   +2 more sources

Marsh Rams-Horn, Marsh Ramshorn Helisoma (Planorbella) trivolvis (Say) (Gastropoda: Planorbidae)

open access: yesEDIS, 2019
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

Exploring freshwater snail diversity and community structure in china's largest lake using eDNA technology

open access: yesEcological Indicators
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

Prevalence of Schistosoma mansoni and S. haematobium in Snail Intermediate Hosts in Africa: A Systematic Review and Meta-analysis

open access: yesJournal of Tropical Medicine, 2020
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

open access: yesBiological Reviews, EarlyView.
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

open access: yes, 2009
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

Home - About - Disclaimer - Privacy