Such events may represent the first step for ecological diversification. They also play an important role in adaptive divergence and speciation.2. A species that is able to do well across a range of environments has a higher plasticity than one whose success is restricted to a single or few ...
For most of the experiments included in this dissertation, I focused on the performance of larvae and adults of two generalist (Cephaloleia belti, C. dilaticollis) and two specialist beetles (Cephaloleia dorsalis, C. placida) reared in the laboratory on native or exotic Zingiberales. ...
Interestingly, we noted that the genome of the specialist Lb encoded more chemoreception genes, including ORs, GRs, and ionotropic receptors (IRs), than that of the generalist Lh (Fig. 1c). These genomic signatures did not provide evidence to support a role of environment-sensing modules, e....
The Prerequisites for and Likelihood of Generalist-Specialist Coexistence. Mathematical models of three-consumer-two-resource systems are used to explore the possibility of coexistence when one consumer is a generalist utilizing b... Abrams,Peter,A. - 《American Naturalist》 被引量: 108发表: 2006年...
Whereas annual or between-habitat variations in HA have been explored for single species16,18, interspecific responses (i.e., different species facing the same natural conditions) have not been studied. Tits are ideal species in which to study HA as they have a wide clutch size range (2–...
Nectar-inhabiting yeasts had a significant impact on nectar chemistry and produced distinct volatile blends, some of which were attractive, while others were neutral or repellent. Among the different yeast species tested, the nectar specialistsM. gruessiiandM. reukaufiiwere the only species that ...
roseus were consumed significantly less, suggesting a lack of important nutrients or undesirable changes in the nectar chemical profiles. Altogether our results indicate that nectar-inhabiting yeasts play an important, but so far largely overlooked, role in plant-insect interactions ...
Invader displayed a higher tolerance and resistance than its two congeners. • Biocontrol ofE. adenophorumin China could not be succeed under current damage levels. Abstract Invasive plants are exotic species that escape control by native specialist enemies. However, exotic plants may still be attac...
Université Paris-Saclay, Gif-sur-Yvette, France and 2Ecologie Systématique Evolution, CNRS, Université Paris-Sud, AgroParisTech, Université Paris-Saclay, Orsay, France We investigated the molecular and ecological mechanisms involved in niche expansion, or generalism, versus specialization in sympatric...
(Fig.1d, e). This is because resistance to these herbicides is conferred by a combination of ‘specialist’ TSR and ‘generalist’ NTSR mechanisms (Fig.2c, d). In this case, the opposing effects of mixtures on TSR and NTSR (Fig.4d, e), mean that there are no overall impacts of ...