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Boreotropical

WebA boreotropical migration route was supported over Indian rafting as the best fitting hypothesis to explain present-day distribution patterns within the family. Early diversification within Annonaceae fits the hypothesis of a museum model of tropical diversification, with an overall steady increase in lineages possibly due to low extinction rates. WebThe global distribution of this clade makes it an excellent group to test hypotheses regarding the processes underlying tropical intercontinental disjunctions. More specifically, it allows us to test whether current distribution patterns resulted from recent transoceanic long-distance dispersal or ancient vicariance after boreotropical migration.

Boreotropical range expansion and long-distance

Boreotropical flora were plants that may have formed a belt of vegetation around the Northern Hemisphere during the Eocene epoch. These included forests composed of large, fast-growing trees (such as dawn redwoods) as far north as 80°N. WebSep 1, 2007 · To determine whether the fragmented pantropical distribution of present day Sideroxyleae primarily is the result of long-distance dispersals or represents the remnants of a once continuous distribution in the northern hemisphere, the boreotropical flora, we used phylogenetic analyses of chloroplast and nuclear ribosomal DNA data, Bayesian … good topics or bad topics https://pisciotto.net

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WebOct 10, 2024 · The presence of Staphyleaceae in southern Mexico ca. 23 to 15My ago is evidence of the long history of integration of vegetation in low-latitude North America, in which some lineages, such as Staphylea, could move southwards from high latitudes of the Northern Hemisphere, as part of the Boreotropical Flora. In Mexico it grew in … WebNov 25, 2010 · A boreotropical migration route was supported over Indian rafting as the best fitting hypothesis to explain present‐day distribution patterns within the family. Main conclusions Early diversification within Annonaceae fits the hypothesis of a museum model of tropical diversification, with an overall steady increase in lineages possibly due to ... WebAdjective [ edit] boreotropical ( not comparable ) Relating to the boreotropics. This page was last edited on 25 September 2024, at 14:52. Text is available under the Creative … good topics for workshops for teachers

(PDF) Eurasian origin, boreotropical migration and

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Boreotropical

Post-Boreotropical dispersals explain the pantropical disjunction …

Web全球气候变冷导致檬果樟属祖先类群所在的北热带植物群( Boreotropical Flora )由高纬度向低纬度地区退缩从而形成隔离,之后的进一步全球降温将其分布区域限制在现今亚洲和美洲的热带地区,从而形成热带环太平洋间断分布格局。 WebMay 28, 2024 · The Boreotropical hypothesis proposes that a widespread Boreotropical flora developed at midlatitudes of the Northern Hemisphere during the early Paleogene …

Boreotropical

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WebMar 10, 2013 · The results demonstrate the importance of post-Boreotropical long-distance dispersals (across three major oceans) in shaping the global pantropical disjunction in some plants, such as Paederia, with small, winged diaspores adapted to long-distance dispersal by various agents including wind, ocean currents or birds.Overland migration is … WebThe Biodiversity Heritage Library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community.

Web中国科学家年鉴、中国科学家论坛 WebJun 9, 2024 · boreotropical relict distribution, that may have caused the distribution patterns in extant Sideroxyleae. Sometimes nuclear ribosomal DNA (nrDNA) and …

WebAug 1, 2024 · The earliest divergences in this clade were also dated to the latest Eocene, concomitant with the southward contraction of tropical forests. Recent studies also … Webboreotropical relict distribution, that may have caused the distribution patterns in extant Sideroxyleae. Sometimes nuclear ribosomal DNA (nrDNA) and organellar DNA data support different topologies of phylogenetic trees (e.g., Smedmark and Eriksson, 2002; Kyndt et al, 2005; Zaldivar-Riveron, 2006). Therefore, it may not be enough to

WebThe global distribution of this clade makes it an excellent group to test hypotheses regarding the processes underlying tropical intercontinental disjunctions. More specifically, it allows us to test whether current distribution patterns resulted from recent transoceanic long-distance dispersal or ancient vicariance after boreotropical migration.

WebThese 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 amphi-Pacific disjunct distribution within Pachygoneae. One overland migration event from Asia into Australasia appears to have occurred in the early to late Miocene. good topics to do a presentationWebMya), followed by disruption of this boreotropical vegeta-tion as a result of climate deterioration in the late Eocene and a drastic temperature drop at the Eocene-Oligocene boundary [12, 13]. African-Asian disjunctions have also been explained either by overland dispersal during the Middle Miocene climatic optimum (17–15 Ma [13]) that chevy billings montanaWebDec 16, 2024 · Integrating evidence from molecular, morphological, fossil, and (paleo)environmental data, we find strong support for a Boreotropical origin of the … chevy billet steering wheelgood topics to discuss about social mediaWebAffiliations 1 College of Biology and Environmental Sciences, Jishou University, Jishou, 416000, China.; 2 Department of Botany, National Museum of Natural History, … good topics to do an informative speech onWebAug 1, 2024 · This study indicates that the biogeographic history of Urticeae likely resulted from a mixture of boreotropical migration and vicariance followed by many episodes of long-distance dispersal among continents. The presence of both winged and fleshy diaspores among the many species of Urticeae likely promoted the expansion of … chevy big rapids miWebMar 15, 2024 · Additionally, the northern boreotropical forests along the potential dispersal route across the Bering land bridge were replaced after the Eocene–Oligocene transition … chevy billion sioux falls