Tropics as cradle
WebThe tropics are a biodiversity engine An explanation: The tropics are a cradle, a museum, and a biodiversity engine Conclusion: Generating more questions Credits Footer Connect Email Facebook Twitter Subscribe to our newsletter Teach Teaching resource database … WebAt the genus level, the tropics are thus both cradle and museum of diversity, whereas the poles are pri-marily a museum, mainly harboring genera that evidently origi-natedatmidandlowlatitudes(5).Afewhigh-latitudetaxa clearly originated in situ, but primarily in cool-temperate zones such as
Tropics as cradle
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Webtropic: [noun] either of the two parallels of terrestrial latitude at a distance of about 23¹/₂ degrees north or south of the equator where the sun is directly overhead when it reaches … WebAug 7, 2007 · Abstract. Tropical forests contain the majority of extant plant diversity and their role as a cradle and/or museum of biodiversity is an important issue in our attempts to assess the long-term consequences of global climate change for terrestrial biomes. Highly diverse groups of liverworts are an often ignored but extremely common element in ...
WebIn 1974 the highly regarded botanist G. Ledyard Stebbins declared that the tropics were either a cradle, where new life evolved more frequently than at other latitudes, or a … WebDec 20, 2024 · Reported in this week's issue of Science, the fossils push back the origins not just of podocarps, but also of groups of seed ferns and cycadlike plants. Beyond altering …
WebJul 18, 2006 · Although cradle and museum models are often presented as temporal alternatives (4, 7), their predictions are not mutually exclusive, and, as the aforementioned observations suggest, the evolutionary histories of tropical lineages of organisms may be expected to exhibit features of both kinds of models. However, this possibility has not … WebJan 28, 2014 · Estimated speciation rates were higher—and extinction rates lower—in the tropics than in temperate regions (Figure 1, Table S1, and Figure S1), suggesting that the …
WebJan 28, 2014 · Some hypotheses emphasize diversification rates as the main driving force underlying the latitudinal diversity gradient: the “tropics as cradle” hypothesis emphasizes the role of high tropical speciation rates, whereas the “tropics as museum” hypothesis emphasizes the role of low tropical extinction rates [17] – [20].
WebThe tropics are a cradle — at least for some marine species. If we just studied the bivalves, foraminiferans, and nannoplankton, we might conclude that the tropics have a higher … pension provider searchWebFeb 4, 2024 · Possible explanations include the idea that the tropics could act as a cradle of species diversification, producing new species at a higher rate than the temperate … pension providers best and worstWebDec 1, 2010 · example of the tropics as "cradle and museums" of. biodiversity (Jablonski et al. 2006). In sum, this assemblage. represents an example of the great but poorly known extinct. todays winnit code inbox dollars twitterWebOct 6, 2006 · Fossil record reveals tropics as cradle and museum Science. 2006 Oct 6;314(5796):66-7. doi: 10.1126/science.1133351. Author Charles R Marshall 1 Affiliation 1 … pension providers netherlandsWebApr 26, 2013 · In the ‘cradle hypothesis’, a small number of species might have migrated to the tropics before diversifying into many more. In 2006, Moreau and her colleagues analysed DNA from living ants and... todays wind speed mphWebMar 15, 2016 · Nonthreatened mammals are twice as likely to show up in fossil databases at about 20%. That bias may distort our understanding of ancient extinctions, Plotnick says—the species that are most likely to go extinct also appear to be the ones who rarely leave behind a trace. One possible reason for this bias, the team found, is that smaller ... pension providers best and worst ukWebThe tropics are thus both a cradle and a museum of biodversity, contrary to the conceptual dichotomy dominant since 1974; a tropical diversity crisis would thus have profound evolutionary effects at all latitudes. T he most striking large-scale pattern in biological diversity is the dramatic in- todays wirral globe