Filters: Tags: bioclimatic envelopes (X) > partyWithName: Betancourt, Julio L (X)
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Late Quaternary histories of two North American desert biomes—C4 grasslands and C3 shrublands—are poorly known despite their sensitivity and potential value in reconstructing summer rains and winter temperatures. Plant macrofossil assemblages from packrat midden series in the northern Chihuahuan Desert show that C4 grasses and annuals typical of desert grassland persisted near their present northern limits throughout the last glacial–interglacial cycle. By contrast, key C3 desert shrubs appeared somewhat abruptly after 5000 cal. yr BP. Bioclimatic envelopes for select C4 and C3 species are mapped to interpret the glacial–interglacial persistence of desert grassland and the mid-to-late Holocene expansion of desert...
Categories: Publication;
Types: Citation;
Tags: Chihuahuan Desert,
Holocene,
N,
bioclimatic envelopes
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