The occurence and paleolimnologic significance of cutthroat trout (Oncorhynchus clarki) in pluvial lakes of the Estancia Valley, central New Mexico

Bachhuber, F. W.

doi:10.1130/0016-7606(1989)101<1543:toapso>2.3.co;2

Cited by 15 publications

(7 citation statements)

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“…4). Although Bachhuber (1989) used the presence of cutthroat trout fossils in Lake Estancia sediments to suggest that overflow to the Pecos River drainage occurred some time before 130,000 yrs ago, he did not find evidence of overflow during the LGM, nor did the present authors (Allen and Anderson, 2000).…”

Section: Other Experimentsmentioning

confidence: 68%

Wetter or colder during the Last Glacial Maximum? Revisiting the pluvial lake question in southwestern North America

Menking

Anderson

Shafike³

et al. 2004

Quat. res.

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Well-preserved shorelines in Estancia basin and a relatively simple hydrologic setting have prompted several inquiries into the basin's hydrologic balance for the purpose of estimating regional precipitation during the late Pleistocene. Estimates have ranged from 86% to 150% of modern, the disparity largely the result of assumptions about past temperatures. In this study, we use an array of models for surface-water runoff, groundwater flow, and lake energy balance to examine previously proposed scenarios for late Pleistocene climate. Constraints imposed by geologic evidence of past lake levels indicate that precipitation for the Last Glacial Maximum (LGM) may have doubled relative to modern values during brief episodes of colder and wetter climate and that annual runoff was as much as 15% of annual precipitation during these episodes.

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Section: Other Experimentsmentioning

confidence: 68%

Wetter or colder during the Last Glacial Maximum? Revisiting the pluvial lake question in southwestern North America

Menking

Anderson

Shafike³

et al. 2004

Quat. res.

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“…South of the Great Basin, in central New Mexico, Lake Estancia had a late Pleistocene history that was mostly similar to those of lakes in the Great Basin (Bachhuber, 1989; the ages cited below were derived by my interpolating and extrapolating between the three 14 C dates considered by him to be reliable: 24,300, 20,040, and 12,460 yr B.P.). In a reconstructed record starting before 35 ka, an "initial freshwater phase" began about 24.5 ka.…”

Section: Paleohydrologic Records For the Period Between 35 Ka And Thementioning

confidence: 99%

Late Cenozoic geology and lacustrine history of Searles Valley, Inyo and San Bernardino Counties, California

Smith¹

2009

Professional Paper

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Cataloging-in-publication data are on file with the Library of Congress (URL http://www.loc.gov/). FRONT COVER False-color satellite image (Landsat Thematic Mapper) of Searles Valley, California. North is at the top. The valley is flanked by the Slate Range on the east and the Argus Range and Spangler Hills on the west. The linear feature trending east-northeast from southwest corner of image is the Garlock Fault. Scale: widest part of valley near middle of Searles Lake is 15 km; vertical dark line north of lake is 1,800-m-long airport runway. Image is a band-ratio composite, in which blue indicates Fe 3+ in the reflecting material, green indicates Fe 2+ , and red reflects clay, CO 3 , and vegetation. Yellow is produced by mixtures of red and green. Searles Lake (left center) is largely magenta and dark blue, colors caused by differing mixtures of Fe 3+-bearing clays and CO 3 (straight lines on the lake surface are roads and evaporating-pond dikes). Alluvial fan surfaces east and north of the lake are mostly green because of the abundance of Fe 2+ in detritus from metamorphic rocks from the Slate Range (note erosional shorelines northeast of lake and curved offshore bars north of lake); fans west and south are also green but have areas of blue (more Fe 3+-bearing volcanic rocks and desert varnish) and red (CO 3-and clay-rich lacustrine sediments). Orange bands on the flanks of the Argus Range and Spangler Hills are caused by the impure CO 3 in massive tufa deposits near the highest lake shoreline (carbonate bedrock in mountain areas in northeast part of image also shows orange hues). Photograph courtesy of Ronald Blom, Jet Propulsion Laboratory,

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“…While several cutthroat trout subspecies appear to have diverged 1-2 million years ago (Loudenslager and Gall 1980;Leary et al 1987;Allendorf and Leary 1988), others have a much shallower evolutionary history. The Rio Grande cutthroat trout (O. c. virginalis), the most southerly subspecies, may have arisen from a transfer of ancestral Colorado River cutthroat trout (O. c. pleuriticus) over the North American Continental Divide less than 100,000 years ago (Behnke 2002).…”

Section: Introductionmentioning

confidence: 98%

Population structure and genetic management of Rio Grande cutthroat trout (Oncorhynchus clarkii virginalis)

Pritchard

Metcalf

Jones³

et al. 2008

Conserv Genet

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The Rio Grande cutthroat trout, Oncorhynchus clarkii virginalis, has declined precipitously over the past century, and currently exhibits a highly fragmented distribution within the Canadian, Pecos and Rio Grande river systems of the western United States. The relationships between populations in the three river drainages, and between O. c. virginalis and the closely related taxa O. c. pleuriticus and O. c. stomias, are not well understood. In order to guide management decisions for the subspecies, we investigated the distribution of variation at 12 microsatellite loci and two regions of the mitochondrial genome. We observed a high level of genetic differentiation between O. c. virginalis populations occupying different headwater streams (global F st = 0.41). However, we found evidence for previous gene flow within the Rio Grande drainage, indicating that inter-population differentiation may have been exacerbated by the recent effects of population fragmentation. Despite large-scale anthropogenic movement of individuals from the Rio Grande into the Canadian and Pecos, the genetic signature of long-term evolutionary independence between the three drainages has been retained.

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The occurence and paleolimnologic significance of cutthroat trout (Oncorhynchus clarki) in pluvial lakes of the Estancia Valley, central New Mexico

Cited by 15 publications

References 0 publications

Wetter or colder during the Last Glacial Maximum? Revisiting the pluvial lake question in southwestern North America

Wetter or colder during the Last Glacial Maximum? Revisiting the pluvial lake question in southwestern North America

Late Cenozoic geology and lacustrine history of Searles Valley, Inyo and San Bernardino Counties, California

Population structure and genetic management of Rio Grande cutthroat trout (Oncorhynchus clarkii virginalis)

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