Around the world in 10 million years: biogeography of the nearly cosmopolitan true toads (Anura: Bufonidae) Aim The species-rich family of true toads (Anura: Bufonidae) has been the focus of several earlier studies investigating the biogeography of geographically... JB Pramuk,T Robertson,JWS Jr...
全部来源 求助全文 ethos.bl.uk 相似文献 引证文献The evolution of male mate choice in insects: a synthesis of ideas and evidence Mate choice by males has been recognized at least since Darwin's time, but its phylogenetic distribution and effect on the evolution of female phenotypes r......
Keep Toads from the Water; Experts Offernovel Way Tohalt Pests Indrier Regions
Cane toads (Rhinella marina) provide an excellent study system in these respects. Like many amphibians, toads synthesise potent chemical defences in the form of steroidal bufotoxins12,13,14that are energetically expensive to produce15,16. Quantifying investment into those chemicals is facilitated by t...
in the next ten years, three out of four UK species are likely to be listed as threatened. Revealing a host of secrets, including how they migrate, what they eat, and how they got to the UK in the first place, Jules Howard inspires us all to look down, rather than up, in spring....
as confirmed in studies of experimental evolution3. Levels of genetic diversity have been associated to the extinction risk, and have been estimated to be 30% lower in threatened species than in their non-threatened relatives4,5. Moreover, genetic diversity within populations can drive ecological ...
In a previous study, others have hypothesized that the variance in vertical errors that occurs while throwing at visual targets is caused by changes in any of three throw parameters: hand location in space, hand translational velocity, and hand orientation. From an analysis of skilled throwers, ...
Kruuk LEB, Gilchrist JS, Barton NH (1999) Hybrid dysfunction in fire-bellied toads (Bombina). Evolution, 53, 1611-1616.Kruuk, L. E B., J. S. Gilchrist, and N. H. Barton. 1999b . Hybrid dysfunction in fire-bellied toads ( Bombina ). Evolution 53: 1611 – 1616 ....
However, under natural conditions, several empirical studies on anurans suggest reproductive isolation to have arisen after divergence initiated in the Pliocene (5.3–2.6 My) or earlier, as best studied in parapatric Bombina (for example, Szymura, 1993, Kruuk et al., 1999, Vines et al., 2003...
Reproductive isolation between lineages is expected to accumulate with divergence time, but the time taken to speciate may strongly vary between different groups of organisms. In anuran amphibians, laboratory crosses can still produce viable hybrid offsp