Tropics as cradle

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August undefined, 2024

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 … WebFeb 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 …

Most species that disappear today will leave no trace in the fossil ...

WebNov 1, 2006 · The tropics today hold much of the world's biodiversity and have acted as cradle of diversity by producing and accumulating species through time (13,14, 17). Thus, … WebOver the past 11 million years, most bivalves that originated in the tropics expanded their ranges out of the Tropics, where they now dominate the living extratropical fauna. Over the past 11 million years, most bivalves that originated in the tropics expanded their ranges out of the tropics, where they now dominate the living extratropical fauna. marinor india

Why is there so much biodiversity in the tropics? Live …

WebOct 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 … WebTESTING THE MUSEUM VERSUS CRADLE TROPICAL BIOLOGICAL DIVERSITY HYPOTHESIS: PHYLOGENY, DIVERSIFICATION, AND ANCESTRAL BIOGEOGRAPHIC RANGE EVOLUTION OF THE ANTS Corrie S. Moreau1,2 and Charles D. Bell3 1Department of Zoology, Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, Illinois 60605 2E-mail: … 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 ... nature\\u0027s earth products southaven ms

Evolution. Fossil record reveals tropics as cradle and …

(PDF) The Tropics as Reservoir of Otherwise Extinct Mammals: …

Webmost (recent) major taxa, the tropical rain forests seem most appropriately to be considered a cradle - but not a good museum, since the species turnover is predicted to … Webthough they originated in the tropics. FIGURE 4- 14 These 3 gures illustrate three models of species origin: the tropics as cradle, tropics as museum, and out of tropics (OTT) models. Horizontal lines denote geographic distributions and show groups that originated in … marino roofingWebAug 1, 2000 · The tropics as a cradle Conversely, the tropics can also be viewed as a cradle of diversity, with high origination rates 3, 30, 33, 38, 40, 41, 42. The two views need not be mutually exclusive, which greatly complicates indirect methods of determining whether the tropics do indeed act as a cradle. marino rocks cafe

"WebMost tropical oribatid mite taxa formed terminal branches indicating that the high diversity of oribatid mites in tropical regions is due to recent radiation, supporting the hypothesis that the tropics function as cradle of oribatid mite diversity. Further, the results suggest that most early-derivative oribatid mite taxa are cosmopolitan ... " - Tropics as cradle

Tropics as cradle

Middle East fossils push back origin of key plant groups …

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 … WebJan 1, 2024 · Species may have evolved more quickly in tropical regions, suggesting that the tropics function as cradle of diversity, or they may have survived in the tropics for longer periods of time...

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WebJan 14, 2024 · Moses in the cradle ( Tradescantia spathacea) is a beautiful tropical plant that is native to Central America. It was first encountered by Europeans in 1788. Since then, it has become naturalized in tropical areas … 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 …

WebApr 26, 2024 · The tropics refer to the region of the planet adjacent to the equator but delimited to the north by the Tropic of Cancer and to the south by the Tropic of Capricorn. This region is also known as the torrid zone or … WebAccording to one explanation of why the tropics have higher diversity then temperate regions, the tropics can be referred to as a where the tropics have a. Cradle: higher speciation rates b. Cradle; higher extinction rates c. Museum: lower speciation rates d. Museum; lower extinction rates O e. Both A and D are correct This problem has been solved!

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 …

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

WebMar 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 ... marino richard t mdWebAug 15, 2024 · In tropical regions, there are more species of plants, animals and fungi in any given area, and that concentration declines as you move farther from the equator. This … nature\\u0027s earth southaven msWebThe 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 … nature\u0027s eats almond flourWebJan 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]. marino roofing and sidingWebJan 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 … marino sask roughridersWebThe fossil record shows that the "tropics-as-cradle-or-museum" paradigm of the past 30 years is a false dichotomy, with the tropics actually being an evolutionary source of expanding lineages that also accumulate in their tropical starting points. nature\\u0027s eats almond flourWebJan 1, 2024 · Species may have evolved more quickly in tropical regions, suggesting that the tropics function as cradle of diversity, or they may have survived in the tropics for longer … mari northern ireland