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"Barry, James"
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Clean7 : supercharge your body's natural ability to heal itself : a one-week breakthrough detox program
A \"7-day program [meant] to rid our bodies of the multitude of toxins that keep us from living well and feeling our best\"-- Provided by publisher.
Book
Powerful turbidity currents driven by dense basal layers
Seafloor sediment flows (turbidity currents) are among the volumetrically most important yet least documented sediment transport processes on Earth. A scarcity of direct observations means that basic characteristics, such as whether flows are entirely dilute or driven by a dense basal layer, remain equivocal. Here we present the most detailed direct observations yet from oceanic turbidity currents. These powerful events in Monterey Canyon have frontal speeds of up to 7.2 m s
−1
, and carry heavy (800 kg) objects at speeds of ≥4 m s
−1
. We infer they consist of fast and dense near-bed layers, caused by remobilization of the seafloor, overlain by dilute clouds that outrun the dense layer. Seabed remobilization probably results from disturbance and liquefaction of loose-packed canyon-floor sand. Surprisingly, not all flows correlate with major perturbations such as storms, floods or earthquakes. We therefore provide a new view of sediment transport through submarine canyons into the deep-sea.
The structure of turbidity currents has remained unresolved mainly due to lack of observations. Here the authors present data from a high-resolution monitoring array deployed for 18 months over Monterey Bay, that suggests turbidity currents are driven by dense near-bed layers.
Journal Article
Habitat heterogeneity, disturbance, and productivity work in concert to regulate biodiversity in deep submarine canyons
Habitat heterogeneity is a major structuring agent of ecological assemblages promoting beta diversity and ultimately contributing to overall higher global diversity. The exact processes by which heterogeneity increases diversity are scale dependent and encompass variation in other well-known processes, e.g., productivity, disturbance, and temperature. Thus, habitat heterogeneity likely triggers multiple and cascading diversity effects through ecological assemblages. Submarine canyons, a pervasive feature of the world's oceans, likely increase habitat heterogeneity at multiple spatial scales similar to their terrestrial analogues. However, our understanding of how processes regulating diversity, and the potential for cascading effects within these important topographic features, remains incomplete. Utilizing remote-operated vehicles (ROVs) for coring and video transects, we quantified faunal turnover in the deep-sea benthos at a rarely examined scale (1 m-1 km). Macrofaunal community structure, megafaunal density, carbon flux, and sediment characteristics were analyzed for the soft-bottom benthos at the base of cliff faces in Monterey Canyon (northeast Pacific Ocean) at three depths. We documented a remarkable degree of faunal turnover and changes in overall community structure at scales
<
100 m, and often
<
10 m, related to geographic features of a canyon complex. Ultimately, our findings indicated that multiple linked processes related to habitat heterogeneity, ecosystem engineering, and bottom-up dynamics are important to deep-sea biodiversity.
Journal Article
The Effect of Ocean Acidification on Calcifying Organisms in Marine Ecosystems: An Organism-to-Ecosystem Perspective
Ocean acidification (OA), a consequence of anthropogenic carbon dioxide emissions, poses a serious threat to marine organisms in tropical, open-ocean, coastal, deep-sea, and high-latitude sea ecosystems. The diversity of taxonomic groups that precipitate calcium carbonate from seawater are at particularly high risk. Here we review the rapidly expanding literature concerning the biological and ecological impacts of OA on calcification, using a cross-scale, process-oriented approach. In comparison to calcification, we find that areas such as fertilization, early life-history stages, and interaction with synergistic stressors are understudied. Although understanding the long-term consequences of OA are critical, available studies are largely short-term experiments that do not allow for tests of long-term acclimatization or adaptation. Future research on the phenotypic plasticity of contemporary organisms and interpretations of performance in the context of current environmental heterogeneity of pCO
2
will greatly aid in our understanding of how organisms will respond to OA in the future.
Journal Article
Credibility : how leaders gain and lose it, why people demand it /
\"The first true revision of the classic book from the bestselling author of The Leadership Challenge As the world falls deeper into economic downturns and warfare, the question of credibility (how leaders gain and lose it) is more important than ever. Building on their research from The Leadership Challenge, James Kouzes and Barry Posner explore in Credibility why leadership is above all a relationship, with credibility as the cornerstone, and why leaders must \"Say what you mean and mean what you say.\" This first full revision of the book since its initial publication in 1993 features new case studies from around the world, fully updated data and research, and a streamlined format. Written by the premier leadership experts working today, Credibility: Reveals the six key disciplines that strengthen a leader's capacity for developing and sustaining credibility. Provides rich examples of real managers in action Includes updates to?the applications?and research This personal, inspiring, and genuine guide helps you understand the fundamental importance of credibility for building personal and organizational success\"--Provided by publisher.
Book
Macroinvertebrate community assembly on deep-sea wood falls in Monterey Bay is strongly influenced by wood type
Environmental filtering, including the influence of environmental constraints and biological interactions on species' survival, is known to significantly affect patterns of community assembly in terrestrial ecosystems. However, its role in regulating patterns and processes of community assembly in deep-sea environments is poorly studied. Here we investigated the role of wood characteristics in the assembly of deep-sea wood fall communities. Ten different wood species (substrata) that varied in structural complexity were sunk to a depth of 3,100 m near Monterey Bay, CA. In total, 28 wood parcels were deployed on the deep-sea bed. After 2 yr, the wood parcels were recovered with over 7,000 attached or colonizing macroinvertebrates. All macroinvertebrates were identified to the lowest taxonomic level possible, and included several undescribed species. Diversity indices and multivariate analyses of variance detected significant variation in the colonizing community assemblages among different wood substrata. Structural complexity seemed to be the primary factor altering community composition between wood substrata. For example, wood-boring clams were most abundant on solid logs, while small arthropods and limpets were more abundant on bundles of branches that provided more surface area and small, protected spaces to occupy. Other factors such as chemical defenses, the presence of bark, and wood hardness likely also played a role. Our finding that characteristics of woody debris entering the marine realm can have significant effects on community assembly supports the notion of ecological and perhaps evolutionarily significant links between land and sea.
Journal Article
The truth about leadership : the no-fads, heart-of-the-matter facts you need to know
\"A fresh look at what it means to lead from two of the biggest names in leadership In these turbulent times, when the very foundations of organizations and societies are shaken, leaders need to move beyond pessimistic predictions, trendy fads, and simplistic solutions. They need to turn to what's real and what's proven. In their engaging, personal, and bold new book, Kouzes and Posner reveal ten time-tested truths that show what every leader must know, the questions they must be prepared to answer, and the real-world issues they will likely face. Based on thirty years of research, more than one million responses to Kouzes and Posner's leadership assessment, and the questions people most want leaders to answer. Explores the fundamental, enduring truths of leadership that hold constant regardless of context or circumstance-leaders make a difference, credibility, values, trust, leading by example, heart, and more. Shows emerging leaders what they need to know to be effective; fans of The Leadership Challenge will find a dynamic new look at the real challenges leaders face today. Drawing from cases spanning three generations of leaders from around the world, this is a book leaders can use to do their real and necessary work-bringing about the essential changes that will renew organizations and communities.\"-- Provided by publisher.
Book
Species-Specific Responses of Juvenile Rockfish to Elevated pCO2: From Behavior to Genomics
In the California Current ecosystem, global climate change is predicted to trigger large-scale changes in ocean chemistry within this century. Ocean acidification-which occurs when increased levels of atmospheric CO2 dissolve into the ocean-is one of the biggest potential threats to marine life. In a coastal upwelling system, we compared the effects of chronic exposure to low pH (elevated pCO2) at four treatment levels (i.e., pCO2 = ambient [500], moderate [750], high [1900], and extreme [2800 μatm]) on behavior, physiology, and patterns of gene expression in white muscle tissue of juvenile rockfish (genus Sebastes), integrating responses from the transcriptome to the whole organism level. Experiments were conducted simultaneously on two closely related species that both inhabit kelp forests, yet differ in early life history traits, to compare high-CO2 tolerance among species. Our findings indicate that these congeners express different sensitivities to elevated CO2 levels. Copper rockfish (S. caurinus) exhibited changes in behavioral lateralization, reduced critical swimming speed, depressed aerobic scope, changes in metabolic enzyme activity, and increases in the expression of transcription factors and regulatory genes at high pCO2 exposure. Blue rockfish (S. mystinus), in contrast, showed no significant changes in behavior, swimming physiology, or aerobic capacity, but did exhibit significant changes in the expression of muscle structural genes as a function of pCO2, indicating acclimatization potential. The capacity of long-lived, late to mature, commercially important fish to acclimatize and adapt to changing ocean chemistry over the next 50-100 years is likely dependent on species-specific physiological tolerances.
Journal Article