Search Results - "McAuliffe, Joseph R"

Climate and Vegetation Change, Hillslope Soil Erosion, and the Complex Nature of Late Quaternary Environmental Transitions, Eastern Mojave Desert, USA by McAuliffe, Joseph R., McFadden, Leslie D., Persico, Lyman P., Rittenour, Tammy M.

“…In what are now the warm deserts of the American Southwest, direct effects of changing climate on plant distributions are typically viewed as the principal…”
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Earthen mounds ( heuweltjies ) of South Africa and their termite occupants: applicability of concepts of the extended phenotype, ecosystem engineering and niche construction by McAuliffe, Joseph R

“…are earthen mounds found throughout the Succulent Karoo of South Africa and are inhabited by the termite . Many have assumed that heuweltjies are constructed…”
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Role of Aeolian Dust in Shaping Landscapes and Soils of Arid and Semi-Arid South Africa by McAuliffe, Joseph, McFadden, Leslie, Hoffman, M.

“…The deposition of fine aeolian sediment profoundly influences the morphology of several different landscapes of the arid and semi-arid western portion of South…”
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Soil horizon development and the tempo and modes of vegetation change during the Holocene in a Sonoran Desert basin, USA by McAuliffe, Joseph R

“…Silt-rich and clay-rich vesicular horizons (V horizons) that develop beneath desert pavements limit infiltration and plant-available soil moisture. A…”
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Occurrence and formation of clast-free circular depressions in the southern Namib Desert, Tsau ǁKhaeb (Sperrgebiet) National Park, Namibia by McAuliffe, Joseph R, Jürgens, Norbert, Gunter, Felicitas, Burke, Antje

“…Circular depressions are concave, shallow depressions found on planar landscape surfaces in the southern Namib Desert. They occur on gravelly substrates with…”
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Self‐Replication Without Hydrogen‐Bonds: An Exobiotic Design by Ams, Mark R., McAuliffe, Joseph R., Semenick, Raina S., Zeller, Matt

“…Life on Earth uses DNA as the central template for self‐replication, genetic encoding, and information transfer. However, there are no physical laws precluding…”
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Role of aeolian sediment accretion in the formation of heuweltjie earth mounds, western South Africa by McAuliffe, Joseph R., Timm Hoffman, M., McFadden, Leslie D., King, Matthew P.

“…ABSTRACT The action of organisms in shaping landforms is increasingly recognized; the field of biogeomorphology and the conceptual framework of ecosystem…”
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Tree-ring record of hillslope erosion and valley floor dynamics: Landscape responses to climate variation during the last 400 yr in the Colorado Plateau, northeastern Arizona by McAuliffe, Joseph R., Scuderi, Louis A., McFadden, Leslie D.

“…Dendrogeomorphologic approaches were used to study hillslope erosion and valley floor dynamics in a small drainage basin in the Colorado Plateau of…”
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Non-equilibrium hillslope dynamics and irreversible landscape changes at a shifting pinyon–juniper woodland ecotone by McAuliffe, Joseph R., McFadden, Leslie D., Roberts, Leah M., Wawrzyniec, Tim F., Scuderi, Louis A., Meyer, Grant A., King, Matthew P.

“…Pinyon–juniper woodlands of the western United States frequently exist within topographically complex landscapes where varied slope aspect yields substantial,…”
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Markovian dynamics of simple and complex desert plant communities by McAuliffe, J.R

“…Many simple plant communities in extremely arid regions of the Sonoran Desert consist essentially of two shrub species, Ambrosia dumcsa and Larrea tridentata…”
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Competition for Space, Disturbance, and the Structure of a Benthic Stream Community by McAuliffe, Joseph R.

“…Interspecific competition for space limits the distribution and abundance of many benthic insects on stones in a western Montana stream. The sessile caddisfly…”
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Ecological Responses of Two Mojave Desert Shrubs to Soil Horizon Development and Soil Water Dynamics by Hamerlynck, Erik P., McAuliffe, Joseph R., McDonald, Eric V., Smith, Stanley D.

“…In the arid southwestern United States, subtle differences in soil horizon development affect seasonal soil hydrology and consequently influence plant…”
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Landscape evolution, soil formation, and ecological patterns and processes in Sonoran Desert Bajadas by McAuligge, J.R

“…Three alluvial piedmonts (bajadas or alluvial fans) studied in the Sonoran Desert near Tucson, Arizona are complex mosaics of distinct geological landforms…”
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Carbon Isotope Discrimination and Foliar Nutrient Status of Larrea tridentata (Creosote Bush) in Contrasting Mojave Desert Soils by Hamerlynck, Erik P., Huxman, Travis E., McAuliffe, Joseph R., Smith, Stanley D.

“…We investigated the relationships between foliar stable carbon isotope discrimination (Δ), % foliar N, and predawn water potentials$(\psi_{\rm pd})$and midday…”
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Effects of Surface and Sub-Surface Soil Horizons on the Seasonal Performance of Larrea tridentata (Creosotebush) by Hamerlynck, Erik P., McAuliffe, Joseph R., Smith, Stanley D.

“…1. In warm arid and semiarid environments, the accumulation of clay minerals produces increasingly well developed soil horizons with the passage of time…”
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A 22,000-year record of vegetation change in the north-central Sonoran Desert by McAuliffe, Joseph R, Van Devender, Thomas R

“…Plant macrofossils from eleven packrat ( Neotoma sp.) middens provide a history of vegetation change over the last 22,140 years at Eagle Eye Mountain, near the…”
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Lithologically influenced geomorphic responses to Holocene climatic changes in the Southern Colorado Plateau, Arizona: A soil-geomorphic and ecologic perspective by McFadden, Leslie D., McAuliffe, Joseph R.

“…The semiarid landscape occupied by the Navajo and Hopi peoples on the Colorado Plateau in northeastern Arizona in the southwestern United States is…”
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Pre-columbian soil erosion, persistent ecological changes, and collapse of a subsistence agricultural economy in the semi-arid Tehuacán Valley, Mexico's ‘Cradle of Maize’ by McAuliffe, Joseph R, Sundt, Peter C, Valiente-Banuet, Alfonso, Casas, Alejandro, Luis Viveros, Juan

“…The cultivation of hillslopes in pre-Columbian times caused considerable soil erosion in the landscapes of the semi-arid Tehuacán Valley, south-central Mexico…”
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Whether or not heuweltjies: Context-dependent ecosystem engineering by the southern harvester termite, Microhodotermes viator by McAuliffe, Joseph R., Hoffman, M. Timm, McFadden, Leslie D., Jack, Sam, Bell, Wesley, King, Matthew P.

“…Regularly spaced earthen mounds called heuweltjies dot landscapes of the succulent Karoo of western South Africa. Colonies of the western harvester termite,…”
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Landscape patterning created by the southern harvester termite, Microhodotermes viator: Spatial dispersion of colonies and alteration of soils by McAuliffe, Joseph R., Hoffman, M. Timm, McFadden, Leslie D., Bell, Wesley, Jack, Sam, King, Matthew P., Nixon, Veronica

“…The southern harvester termite (Microhodotermes viator) is often associated with large, regularly spaced earthen mounds called heuweltjies in western South…”
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