Mostrando 21 - 40 Resultados de 146 Para Buscar '"Last Glacial Period"', tiempo de consulta: 1.51s Limitar resultados
  1. 21
    “…The results showed that the Chinese reindeer population originated independently from north-central Russian domestic herds, belonging to a large reindeer population that was present across Beringia during the last glacial period. Some studies have reported that the Chinese reindeer population is closely related to wild forest reindeer herds in Russia. …”
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  2. 22
    “…Respired carbon storage in the deep Atlantic was therefore enhanced during the last glacial period, primarily due to an increase in the residence time of carbon in the deep ocean, rather than an increase in biological carbon export.…”
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  3. 23
    “…These observations indicate that an active subglacial meltwater network, similar to that observed beneath the extant ice sheet, was also active during the last glacial period. It also provides a new framework for refining the exploration of these unique environments.…”
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  4. 24
    “…Relatively recent population expansion in the last glacial period, large dispersal of eggs or larvae carried by coastal current, and the homogeneity of living environment may have an important influence on the population genetic pattern.…”
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  5. 25
    por Branco, Catarina, Arenas, Miguel
    Publicado 2018
    “…Next, we review previous studies on the influence of range expansions, population admixture, last glacial period, and migration with long-distance dispersal on genetic gradients for some regions of the world. …”
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  6. 26
    por Riehl, Torben, Kaiser, Stefanie
    Publicado 2012
    “…To determine where this species could have survived the last glacial period, alternative refuge possibilities are discussed.…”
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  7. 27
    “…Based on optically stimulated luminescence (OSL) and high resolution grain-size records, we reconstruct the change history of the Westerlies strength during the last glacial period (mainly Marine Isotope Stages 2, MIS2), being similar with the Westerlies index recorded in the Qinghai Lake sediments. …”
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  8. 28
    “…Marine sediment records suggest that episodes of major atmospheric CO(2) drawdown during the last glacial period were linked to iron (Fe) fertilization of subantarctic surface waters. …”
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  9. 29
    “…The estimated long-term Ne of the Lithuanian population is quite low—it equals 5404, which likely is a consequence of the bottlenecks associated with the last glacial period of 25,000–12,000 YBP in Europe. The obtained divergence time estimates between the study populations are in agreement with recent studies. …”
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  10. 30
    “…However, the low genetic distance (0.0032) and only two fixed substitutions between them suggest their recent divergence is possibly due to the last glacial period barriers to gene flow produced by the Leizhou Peninsula. …”
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  11. 31
    “…We reconstruct a detailed vegetation history for the Last Glacial period based on pollen spectra from Lake Baikal. …”
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  12. 32
    “…Based on our own findings and those from pollen and vegetation studies, we hypothesize that the species range of B. anynana was reduced to equatorial refugia during the last glacial period, and that the species expanded southwards during the past 10.000 years. …”
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  13. 33
    por Oromi, N, Richter-Boix, A, Sanuy, D, Fibla, J
    Publicado 2012
    “…We conclude that the genetic variability in B. calamita along its wide altitudinal and latitudinal geographic distribution mainly reflects the colonization history of the species after the last glacial period.…”
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  14. 34
    “…The observed pattern of genetic variation inferred by nuclear DNA Internal Transcribed Spacer 1 (ITS1) and mtDNA cytochrome C oxidase 1 (COI), between parasite populations is most likely caused by a recent shared demographic history like a reduced species area in the last glacial period. In spite of such recent expansion that populations underwent, F. echeneis shows differentiation in haptor morphometry as an adaptive trait in closely related populations at the aquaculture site. …”
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  15. 35
    “…We conclude that environmental changes during the last glacial period promoted the decline of a top ocean predator, that these events contributed to the pattern of diversity among extant populations, and that the relatively high diversity of a population currently in productive, stable habitat off South Africa suggests a role for ocean productivity in the widespread decline.…”
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  16. 36
    “…Human activities have had the strongest impacts on natural ecosystems since the last glacial period, including the alteration of interspecific relationships such as food webs. …”
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  17. 37
    “…Comparisons of the North Indian record with both Antarctic ice core and sea-surface temperature records from the southern Indian Ocean over the last glacial period do not suggest a dominant role of Southern Hemisphere climate processes in regulating the ISM variability on millennial-orbital timescales.…”
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  18. 38
    “…Millennial-scale climate changes during the last glacial period and deglaciation were accompanied by rapid changes in atmospheric CO(2) that remain unexplained. …”
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  19. 39
    por Burger, Pamela Anna
    Publicado 2016
    “…The demographic history established from genome drafts of Old World camels shows the independent development of the three species over the last 100,000 years with severe bottlenecks occurring during the last glacial period and in the recent past. Ongoing studies involve the immune system, relevant production traits, and the global population structure and domestication of Old World camels. …”
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  20. 40
    “…Large herbivores are a major agent in ecosystems, influencing vegetation structure and carbon and nutrient flows. During the last glacial period, the steppe-tundra ecosystem prevailed on the unglaciated northern lands, hosting a high diversity and density of megafaunal herbivores. …”
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