Larger bacterial populations evolve heavier fitness trade-offs and undergo greater ecological specialization
نویسندگان
چکیده
منابع مشابه
Floral specialization and angiosperm diversity: phenotypic divergence, fitness trade-offs and realized pollination accuracy
Plant reproduction by means of flowers has long been thought to promote the success and diversification of angiosperms. It remains unclear, however, how this success has come about. Do flowers, and their capacity to have specialized functions, increase speciation rates or decrease extinction rates? Is floral specialization fundamental or incidental to the diversification? Some studies suggest t...
متن کاملFitness trade-offs in blaTEM evolution.
bla(TEM-1) expression results in penicillin resistance, whereas expression of many bla(TEM-1) descendants, called extended-spectrum beta-lactamases (ESBLs), results simultaneously in resistance to penicillins and extended-spectrum cephalosporins. Despite the expanded resistance phenotypes conferred by many ESBLs, bla(TEM-1) is still the most abundant bla(TEM) allele in many microbial population...
متن کاملLife history trade-offs assemble ecological guilds.
Ecological theory predicts that competition for a limiting resource will lead to the exclusion of species unless the within-species effects outweigh the between-species effects. Understanding how multiple competitors might coexist on a single resource has focused on the prescriptive formalism of a necessary niche width and limiting similarity. Here, we show how continuously varying life histori...
متن کاملLearning about social-ecological trade-offs
Trade-offs are manifestations of the complex dynamics in interdependent social-ecological systems. Addressing tradeoffs involves challenges of perception due to the dynamics of interdependence. We outline the challenges associated with addressing trade-offs and analyze knowledge coproduction as a practice that may contribute to tackling trade-offs in social-ecological systems. We discuss this t...
متن کاملDetecting Ecological Trade-offs Using Selection Experiments
Theories of the evolution of niche breadth usually depend on the assumption that genotypes that are well adapted to exploit one habitat or resource are not well adapted to others. Such ‘‘trade-offs’’ are often apparent in interspecific comparisons, but have been harder to document at the within-population level. Selection experiments provide a promising means for detecting within-population tra...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Heredity
سال: 2020
ISSN: 0018-067X,1365-2540
DOI: 10.1038/s41437-020-0308-x