Higher locomotor costs of pregnancy in viviparous compared to oviparous common lizards (Zootoca vivipara) [PDF]
Ecology and EvolutionPregnancy is a physiological cost of reproduction for animals that rely on fleeing to avoid predators. Costs of reproduction are predicted to differ between alternative reproductive strategies or modes, such as egg‐laying (oviparity) or live‐bearing ...
Robert Hussain +2 more
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Effects of Salinity on the Reproductive and Lifespan Traits of Artemia Parthenogenetic Lineages with Different Ploidy Levels [PDF]
BiologyAlthough previous studies have investigated the reproductive (performance and mode) and lifespan traits of parthenogenetic Artemia, ploidy level has not been considered.
Alireza Asem +6 more
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Combined effects of temperature, photoperiod, and salinity on reproduction of the brine shrimp Artemia sinica (Crustacea: Anostraca) [PDF]
PeerJ, 2023 Background Artemia sinica is a brine shrimp species distributed in hypersaline salt lakes in northern China and Siberia and a successful invasive species in some coastal salterns. Although it is a commercially harvested and cultured species, knowledge of
Jing-Yu Yang, Shi-Chun Sun
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The adaptability of facultative parthenogenesis and ‘multiple embryos per eggcase’ as alternative reproductive strategies in Chondrichthyes [PDF]
Royal Society Open ScienceChondrichthyans (sharks, rays and chimaera) are a fascinating case study through which to examine reproductive biology. While most vertebrate lineages have converged upon either placental viviparity or oviparity, chondrichthyans exhibit unparalleled ...
Joel Harrison Gayford
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A new species of skin-feeding caecilian and the first report of reproductive mode in Microcaecilia (amphibia: Gymnophiona: Siphonopidae). [PDF]
PLoS ONE, 2013 A new species of siphonopid caecilian, Microcaecilia dermatophagasp. nov., is described based on nine specimens from French Guiana. The new species is the first new caecilian to be described from French Guiana for more than 150 years. It differs from all
Mark Wilkinson +3 more
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Colonization pattern and thermal needs of immature phases of Sarcophaga argyrostoma (Diptera: Sarcophagidae): Significance for estimating postmortem interval [PDF]
HeliyonMembers of Sarcophagidae are necrophagous and are commonly found on decaying carcasses; and their developmental forms are important indicators for the approximation of lowest postmortem interval (PMImin).
Saba Hediyeloo +3 more
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Natural variation in the Caenorhabditis elegans egg-laying circuit modulates an intergenerational fitness trade-off [PDF]
eLifeEvolutionary transitions from egg laying (oviparity) to live birth (viviparity) are common across various taxa. Many species also exhibit genetic variation in egg-laying mode or display an intermediate mode with laid eggs containing embryos at various ...
Laure Mignerot +6 more
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De novo transcriptome for Chiloscyllium griseum, a long-tail carpet shark of the Indian waters [PDF]
Scientific DataSharks have thrived in the oceans for 400 million years, experienced five extinctions and evolved into today’s apex predators. However, enormous genome size, poor karyotyping and limited tissue sampling options are the bottlenecks in shark research ...
Pooja Harshan +2 more
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Facultative oviparity in a viviparous skink ( Saiphos equalis). [PDF]
Biol Lett, 2019 Facultative changes in parity mode (oviparity to viviparity and vice versa) are rare in vertebrates, yet offer fascinating opportunities to investigate the role of reproductive lability in parity mode evolution. Here, we report apparent facultative oviparity by a viviparous female of the bimodally reproductive skink Saiphos ...
Laird MK, Thompson MB, Whittington CM.
europepmc +4 more sources
Assessing the metabolic and physiological costs of oviparity in the epaulette shark (Hemiscyllium ocellatum) [PDF]
Biology OpenCarolyn R. Wheeler +3 more
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