Academic literature on the topic 'Pulse-Reserve Paradigm'

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Journal articles on the topic "Pulse-Reserve Paradigm"

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Reynolds, James F., Paul R. Kemp, Kiona Ogle, and Roberto J. Fernández. "Modifying the ‘pulse–reserve’ paradigm for deserts of North America: precipitation pulses, soil water, and plant responses." Oecologia 141, no. 2 (2004): 194–210. http://dx.doi.org/10.1007/s00442-004-1524-4.

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Henschel, Joh R. "Long-Term Population Dynamics of Namib Desert Tenebrionid Beetles Reveal Complex Relationships to Pulse-Reserve Conditions." Insects 12, no. 9 (2021): 804. http://dx.doi.org/10.3390/insects12090804.

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Noy-Meir’s paradigm concerning desert populations being predictably tied to unpredictable productivity pulses was tested by examining abundance trends of 26 species of flightless detritivorous tenebrionid beetles (Coleoptera, Tenebrionidae) in the hyper-arid Namib Desert (MAP = 25 mm). Over 45 years, tenebrionids were continuously pitfall trapped on a gravel plain. Species were categorised according to how their populations increased after 22 effective rainfall events (>11 mm in a week), and declined with decreasing detritus reserves (97.7–0.2 g m−2), while sustained by nonrainfall moisture
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Osem, Yagil, sela Gabriel Bar, Moshe Dubinin, et al. "The Relationships Between Precipitation and Productivity Pulse Patterns in Rainfall-, Runoff-, and Flood-Driven Dryland Ecosystems - Israeli LTER Network Project." ARPHA Conference Abstracts 8 (May 28, 2025): e156433. https://doi.org/10.3897/aca.8.e156433.

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Background: Rainfall pulse patterns - defined by variability in the timing, intensity, frequency, and duration of precipitation events - play a critical role in shaping the functionality of all terrestrial ecosystems. These patterns regulate water availability, nutrient cycling, and primary productivity. Rainfall-dependent, runoff-dependent, and flood-dependent dryland ecosystems differ structurally and functionally due to their reliance on distinct hydrological processes triggered by rainfall pulses. These ecosystems serve as effective models for addressing a key scientific question: Do ecosy
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Young, Kristina E., Osvaldo Sala, Anthony Darrouzet‐Nardi, et al. "Biocrust Mosses and Cyanobacteria Exhibit Distinct Carbon Uptake Responses to Variations in Precipitation Amount and Frequency." Ecology Letters 28, no. 5 (2025). https://doi.org/10.1111/ele.70125.

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ABSTRACTDryland organisms exhibit varied responses to changes in precipitation, including event size, frequency, and soil moisture duration, influencing carbon uptake and reserve management strategies. This principle, central to the pulse‐reserve paradigm, has not been thoroughly evaluated in biological soil crusts (biocrusts), essential primary producers on dryland surfaces. We conducted two experiments to investigate carbon uptake in biocrusts under different precipitation regimes. In the first, we applied a gradient of watering amounts to biocrusts dominated by moss or cyanobacteria, hypoth
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Kut, Patrick, and Ferran Garcia-Pichel. "Nimble vs. torpid responders to hydration pulse duration among soil microbes." Communications Biology 7, no. 1 (2024). http://dx.doi.org/10.1038/s42003-024-06141-5.

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AbstractEnvironmental parameters vary in time, and variability is inherent in soils, where microbial activity follows precipitation pulses. The expanded pulse-reserve paradigm (EPRP) contends that arid soil microorganisms have adaptively diversified in response to pulse regimes differing in frequency and duration. To test this, we incubate Chihuahuan Desert soil microbiomes under separate treatments in which 60 h of hydration was reached with pulses of different pulse duration (PD), punctuated by intervening periods of desiccation. Using 16S rRNA gene amplicon data, we measure treatment effect
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Wang, Donglou, Jiao Zhou, Xingrong Sun, and Xuemei Niu. "The Essence of Nature Can be the Simplest (3)Holistic Energy: Extracellular Fenton reactions of all cells." Chemistry & Biodiversity, April 22, 2025. https://doi.org/10.1002/cbdv.202500942.

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Cooperative mechanisms are widely regarded as pivotal drivers in the evolutionary transition from unicellular to multicellular life. However, the mechanism of how multicellular organisms integrate the individual energy of all cells into holistic energy, and how exactly the holistic energy is manifested remains poorly understood. Traditionally, relying on ATP within heart muscle cells to drive a permanent heartbeat (called cardiac contraction) is responsible for the vital holistic biological process of transporting and distributing oxygen and nutrients to cells throughout the body, but the limi
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Osem, Yagil, Gabriel Bar sela, Moshe Dubinin, et al. "The Relationships Between Precipitation and Productivity Pulse Patterns in Rainfall-, Runoff-, and Flood-Driven Dryland Ecosystems - Israeli LTER Network Project." ARPHA Conference Abstracts 8 (May 28, 2025). https://doi.org/10.3897/aca.8.e156433.

Full text
Abstract:
Background: Rainfall pulse patterns - defined by variability in the timing, intensity, frequency, and duration of precipitation events - play a critical role in shaping the functionality of all terrestrial ecosystems. These patterns regulate water availability, nutrient cycling, and primary productivity. Rainfall-dependent, runoff-dependent, and flood-dependent dryland ecosystems differ structurally and functionally due to their reliance on distinct hydrological processes triggered by rainfall pulses. These ecosystems serve as effective models for addressing a key scientific question: Do ecosy
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Book chapters on the topic "Pulse-Reserve Paradigm"

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Mitchell, Katherine A., and Jeffrey E. Herrick. "Patterns and Controls of Soil Water in the Jornada Basin." In Structure and Function of a Chihuahuan Desert Ecosystem. Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780195117769.003.0009.

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This chapter focuses on controls and patterns of soil moisture in the Jornada Basin. First we describe general properties that commonly contribute to soil water heterogeneity; second, we offer a brief overview of soil water research in the Jornada Basin; and last, we describe specific patterns of soil water content and availability observed in the Jornada Basin. Our goal is to describe general patterns of soil water that are likely to occur across the Chihuahuan Desert region. In arid and semiarid regions, water is typically thought to be the most limiting resource to biological activity (Noy-
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