全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Xiangsen Liu , Binxiang Dai
来源:[J].Advances in Difference Equations(IF 0.76), 2018, Vol.2018 (1), pp.1-13Springer
摘要:... We employ the approach and techniques coming from epidemiology and calculate the basic reproduction number for the predator. Using the basic reproduction number, we consider the global attraction of the predator-free periodic solution and uniform persistence of the predato...
作者:Ziru Jiang , Li Jin , Weihui Shi ...
来源:[J].Science China Life Sciences(IF 2.024), 2019, Vol.62 (1), pp.112-118Springer
摘要:... The results suggest that a combination of FSH, E 2 and age could effectively predict the pregnancy outcome for women undergoing IVF-ET, and we should encourage infertile women with diminished ovarian reserve, especially young infertile women, to try the assisted reproduction ...
作者:Chen Wu , Victoria G. Twort , Ross N. Crowhurst ...
来源:[J].BMC Genomics(IF 4.397), 2017, Vol.18 (1)Springer
摘要:Stick insects (Phasmatodea) have a high incidence of parthenogenesis and other alternative reproductive strategies, yet the genetic basis of reproduction is poorly understood. Phasmatodea includes nearly 3000 species, yet only the genome of Timema cristinae has been published to ...
作者:Deepak Nanjappa , Remo Sanges , Maria I. Ferrante ...
来源:[J].BMC Genomics(IF 4.397), 2017, Vol.18 (1)Springer
摘要:Flagella have been lost in the vegetative phase of the diatom life cycle, but they are still present in male gametes of centric species, thereby representing a hallmark of sexual reproduction. This process, besides maintaining and creating new genetic diversity, in diatoms is als...
作者:Barney Wharam , Laura Weldon , Mark Viney
来源:[J].BMC Evolutionary Biology(IF 3.285), 2017, Vol.17 (1)Springer
摘要:Animals use information from their environment to make decisions, ultimately to maximize their fitness. The nematode C. elegans has a pheromone signalling system, which hitherto has principally been thought to be used by worms in deciding whether or not to arrest their developmen...
作者:Julie Landes , Pierre‐Yves Henry , Isabelle Hardy ...
来源:[J].Ecology and Evolution(IF 1.184), 2019, Vol.9 (11), pp.6189-6198DOAJ
摘要:Abstract The survival cost of reproduction has been revealed in many free‐ranging vertebrates. However, recent studies on captive populations failed to detect this cost. Theoretically, this lack of survival/reproduction trade‐off is expected when resources are not limiting,...
作者:Zhongwu Wang , Lina Xie , Chelse M. Prather ...
来源:[J].BMC Plant Biology(IF 4.354), 2018, Vol.18 (1), pp.1-10DOAJ
摘要:Abstract Background The reasons that clonal plants shift between sexual and clonal reproduction have persisted as a knowledge gap in ecological literature. We hypothesized that clonal plants’ shifts between sexual and clonal reproduction in different environments are driven by...
作者:Brande L. Jones , Chris Walker , Bahareh Azizi ...
来源:[J].BMC Evolutionary Biology(IF 3.285), 2017, Vol.17 (1)Springer
摘要:... Though rotifers are phylogenetically distant from humans, and have specialized reproductive physiology, this work identifies a surprising conservation in the control of reproduction between humans and rotifers through the estrogen receptor. Until recently, steroid signaling h...
作者:Jing Ge , Zhigui Lin , Qunying Zhang
来源:[J].Advances in Difference Equations(IF 0.76), 2017, Vol.2017 (1)Springer
摘要:... The basic reproduction number \(R_{0} ^{D}\) , which serves as a threshold parameter that predicts whether the coexistence will exist or not, is introduced by the next infection operator and the related eigenvalue problems. By applying upper and lower solutions method, we pre...
作者:Mark Maraun , Tancredi Caruso , Jonathan Hense ...
来源:[J].Ecology and Evolution(IF 1.184), 2019, Vol.9 (12), pp.7324-7332DOAJ
摘要:... Two major hypotheses have been put forward to explain the advantages of parthenogenetic versus sexual reproduction in animals, that is, the Red Queen hypothesis and the Tangled Bank/Structured Resource Theory of Sex. The Red Queen hypothesis assumes that antagonistic predat...

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