2024 Boreotropical hypothesis

Boreotropical hypothesis

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WebJun 4, 2024 · Probably the most widely acknowledged is the boreotropical hypothesis (Wolfe 1975; Tiffney 1985), which proposes that tropical intercontinental disjunctions are the result of vicariant events, linked to … WebMay 12, 2015 · The boreotropical hypothesis has been. much less discussed in ferns despite its potential value for. explaining their …

Boreotropical flora - Wikipedia

WebAfter evolving in Asia during the Eocene, the polystichoid ferns reached the New World in independent migrations at the Eocene-Oligocene boundary through the boreotropical belt. However, although less likely, the alternative hypothesis of independent transoceanic dispersals from the Old to the New World cannot be ruled out. Webvicariance hypothesis for these palm groups raises the ques-tion of whether Eocene interplate dispersal is a general explanation for amphi-continental disjunctions in the palm family and which dispersal routes are most likely to explain such events. One of the most extreme examples of disjunct distribu- circle area and circumference worksheet free

A dated molecular phylogeny and biogeographical analysis

WebSep 25, 2024 · Although one alternative hypothesis was not completely rejected, results show that the Boreotropical hypothesis for the PDV clade could be a robust explanation for its actual distribution. This hypothesis is mostly overlooked in animal taxa and rigorous tests with other taxa with similar distributions may reveal that a Boreotropical origin is ... WebJun 9, 2024 · In further support of the boreotropical hypothesis, most reconstructed dispersal events were from the Old to the New World and from north to south (i.e., Eurasian to Sino-Japanese, Sino-Japanese to Papua-Melanesian in the Old World; Nearctic to Panamanian in the New World) . This supports the intriguing notion that there may be a … WebBoreotropical flora were plants that may have formed a belt of vegetation around the Northern Hemisphere during the Eocene epoch. These included forests composed of … circle arch draping

Fossil-Informed Models Reveal a Boreotropical Origin and …

Origins and Relationships of the Mixed Mesophytic Forest Of …

WebFeb 1, 2024 · America–Europe (Boreotropical hypothesis) and southeast Asia. Nonetheless, distribu-tion ranges for the species of Hiptage must be carefully revised, and the ﬁve species of . WebAug 14, 2024 · Background: The Asimina-Disepalum clade (Annonaceae subfam. Annonoideae tribe Annoneae) includes a major Neotropical-Asian biogeographical disjunction. We evaluate whether this disjunction can be explained by the Eocene boreotropics hypothesis, which relies on the existence of extensive boreotropical … circle area word problems worksheet pdfWebApr 1, 2024 · The 'boreotropical flora' hypothesis proposed by Wolfe (1975) has been confirmed to be responsible for this disjunct distribution (Lian et al., 2024). Meanwhile, … diamana 70 x5ct shaft specs

"Webboth as a dispersal route for boreotropical lineages (16, 17) and as a driver in promoting rapid diversification, via allopatric speciation and ecological displacement, in highland … " - Boreotropical hypothesis

Boreotropical hypothesis

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WebApr 3, 2012 · The phylogenetic assessment of the boreotropical hypothesis developed by Lavin & Luckow (1993) was applied to the Sclerodermatineae using area ASR parsimony analysis on the supertree data set (Notes S8, S13). Although the results are not entirely conclusive, some Sclerodermatineae clades do demonstrate a pantropical distribution … WebJul 1, 2024 · This hypothesis has been used to explain the biogeographic history of many plant groups (Lavin and Luckow, 1993, Tiffney, 1985a, Tiffney, 1985b, Wen, 1999, Wen …

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WebMay 28, 2024 · The Boreotropical hypothesis proposes that a widespread Boreotropical flora developed at midlatitudes of the Northern Hemisphere during the early Paleogene and spread around the globe via the Beringia and North Atlantic land … WebJan 1, 2024 · Among these, the “Boreotropical migration” hypothesis often seems favored or invoked to explain the evolutionary history of ECM fungal groups for reasons such as (1) many species are host-generalists (Morris et al., 2009, Diédhiou et al., 2010, Tedersoo et al., 2011, Peay et al., 2015), (2) most ECM fungal groups comprise species found in ...

Webmineral exploration. In Earth exploration. The deepest borehole so far drilled extends only to a depth of about 10 kilometres (6 miles). Because direct exploration is so …

Webbiogeography, boreotropical hypothesis, divergence times, ectomycorrhizal evolution, Lagrange, mesophytic forests, supertrees. Summary • This study uses phylogenetic analysis of the Sclerodermatineae to reconstruct the evolution of ectomycorrhizal host associations in the group using divergence dating, ancestral range WebJul 7, 2024 · The Boreotropical hypothesis proposes that a widespread boreotropical flora developed at midlatitudes of the Northern Hemisphere during the early Paleogene …

WebOct 24, 2024 · they suggest the hypothesis that potentially many clades, particularly inhabitants of boreotropical floras, were likely extirpated from the Holarctic and persist …

WebJan 1, 2024 · Invoking the Boreotropics hypothesis, the ancestral Ormosieae may have been distributed semi-continuously in the Boreotropical zone, at latitudes much higher than those of the current distribution of Ormosieae, and perhaps with a partial connection over a North Atlantic land bridge (Tiffney, 1985b). Only after the breakup of the Boreotropics ... circle arch with flowersWebAug 27, 2014 · The mode of dispersal is largely consistent with Wolfe's boreotropical hypothesis. We also found that the overall diversification rate has been rather constant, … circle a ranch and lodgeWebJun 23, 2008 · Contrasting this hypothesis, an Eocene boreotropical migration scenario (see further) would be an equally possible explanation for the disjunction observed in node 1. The DIVA analysis supports a neotropical origin for the clade containing all other Burmanniaceae lineages. diamana bf series shaftWebThese two timings correspond with the two climatic cooling intervals, which suggests that the formation and breakup of the boreotropical floral may have been responsible for the … diamana blue 60 shaft reviewWebApr 27, 2016 · To explain the origin and development of these disjunct forests, Wolfe and Tiffney developed the boreotropical hypothesis. Accordingly, a paratropical (near-tropical) rainforest flora containing a mixture of tropical, paratropical, and temperate genera developed at several places in the middle latitudes of the Northern Hemisphere in the … circle area humane society circleville ohioWebJan 1, 2024 · Here, we propose that a most likely scenario led to the diversification of Limnogonus in accordance with the “boreotropical migration” model hypothesis (Figure … circle area corbett mathsWebSep 25, 2024 · Although one alternative hypothesis was not completely rejected, results show that the Boreotropical hypothesis for the PDV clade could be a robust explanation for its actual distribution. This hypothesis is mostly overlooked in animal taxa and rigorous tests with other taxa with similar distributions may reveal that a Boreotropical origin is ... diamana 50 x5ct driver shaft flex