The pollen record from Elk Lake is interpreted in climatic terms by three different numerical approaches. The paleoclimatic record inferred for Elk Lake can be described as a sequence of climatic zones, separated by short transitional intervals: (1) the cold and dry late glacial zone (11,600-11,000 varve yr), (2) the cool and moist early Holocene zone (10,000-8500 varve yr), (3) the warm and dr...

Approximately 70 km of new decimeter-resolution seismic reflection profile data from Owasco Lake, New York define a middle Holocene (∼4600 14C yr B.P.) erosion surface in the north end of the lake at water depths as great as 26 m. Beneath the lake, postglacial sediments are up to 9 m thick and represent about 10% of the total sediment fill. Early to middle Holocene sediments, ∼6 m thick, contai...

Holocene records of fire, vegetation, and climate were reconstructed from four sites in the Bitterroot Range region of the Northern Rocky Mountains in order to examine the vegetation and fire histories and evaluate the hypothesis proposed by Whitlock and Bartlein (1993) regarding the effects of increased summer insolation on precipitation patterns. Vegetation history in the series of sites was ...

[1] Methyl chloride (CH3Cl) is a naturally occurring, ozone-depleting trace gas and one of the most abundant chlorinated compounds in the atmosphere. CH3Cl was measured in air from the Taylor Dome ice core in East Antarctica to reconstruct an atmospheric record for the Holocene (11–0 kyr B.P.) and part of the last glacial period (50–30 kyr B.P.). CH3Cl variability throughout the Holocene is str...

Coastal barrier systems have been widely used to understand the responses of coastal margins to fluctuating Pleistocene sea levels. What has become apparent, particularly with the development of robust chronological frameworks, is that gaps in terrestrial barrier sedimentary records are not uncommon and that they most likely reflect phases of barrier construction on the now submerged continenta...

the house mouse (mus musculus) is a polytypic species, with its geographic distribution largely the result of human migrations during the late glacial and holocene. this study used geometric morphometry (gm) on upper and lower molars to discriminate among the three subspecies of the house mouse present in iran. moreover cranial remains of this species were uncovered on several archaeological si...

After centuries of human hunting, the Eurasian beaver Castor fiber had disappeared from most of its original range by the end of the 19th century. The surviving relict populations are characterized by both low genetic diversity and strong phylogeographical structure. However, it remains unclear whether these attributes are the result of a human-induced, late Holocene bottleneck or already exist...

Bones from a stratified sedimentary deposit in the Puu Naio Cave site on Maui, Hawaiian Islands, reveal the late Holocene extinction of 19 species of birds. The age of the sediment and associated fauna was determined by direct radiocarbon dating (tandem particle accelerator-mass spectrometer; TAMS) of amino acids extracted from bones weighing as little as 450 mg. The 14C dates indicate that sed...

Fossil phytolith assemblages from a 154.5 m longdrill core from the Lower Taieri Plain, Otago, New Zealand are presented. Transfer functions, based on modern phytolith assemblages from sites within the same region, were applied to the fossil phytolith data set, and validated using Modern Analogue Technique (MAT) assemblage matching. Analogues for much of the Holocene and some of the Last Interg...