Samuel J. Macaulay

Experimental insights into the role of running waters in Enhanced Rock Weathering

Samuel J. Macaulay, Kieran Khamis, Lisa Mignanelli, Emma L. Cavan

Rivers transport and transform products of chemical weathering, yet the processes governing carbonate precipitation, biotic transformation and fixation of enhanced rock weathering products remain poorly constrained. We conducted a controlled stream flume experiment manipulating simulated basalt-amended runoff across six ERW levels (0–100 …

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Synthesizing stressor–biodiversity relationships

Samuel J. Macaulay

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Effects of Biodiversity Loss on Freshwater Ecosystem Functions Increase With the Number of Stressors

Ralf B. Schäfer, Daria Baikova, Helena S. Bayat, Arne J. Beermann et autres

A multitude of anthropogenic stressors drive biodiversity loss and alter ecosystem functioning. Freshwaters, which contribute disproportionally to global biodiversity and biogeochemical cycles, are particularly threatened. Although the relationship between biodiversity and ecosystem functions (BEF) is generally well-established, especially in terrestrial ecosystems, the …

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Hypothesis‐Driven Research on Multiple Stressors: An Analytical Framework for Stressor Interactions

Iris Madge Pimentel, Dania Albini, Arne J. Beermann, Florian Leese et autres

Identifying and characterizing stressor interactions is central to multiple stressor research. Such interactions refer to stronger (synergism) or weaker (antagonism) joint effects of co-occurring stressors on biological entities, when compared to the predictions of a theoretical null model. Various null models have …

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Addressing grand ecological challenges in aquatic ecosystems: how can mesocosms be used to advance solutions?

Samuel J. Macaulay, Erik Jeppesen, Ulf Riebesell, Jens C. Nejstgaard et autres

Rapid and drastic anthropogenic impacts are affecting global biogeochemical processes and driving biodiversity loss across Earth's ecosystems. In aquatic ecosystems, species distributions are shifting, abundances of many species have declined dramatically, and many are threatened with extinction. In addition to loss of …

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Studying interactions among anthropogenic stressors in freshwater ecosystems: A systematic review of 2396 multiple‐stressor experiments

James Orr, Samuel J. Macaulay, Adriana Mordente, Benjamin Burgess et autres

Understanding the interactions among anthropogenic stressors is critical for effective conservation and management of ecosystems. Freshwater scientists have invested considerable resources in conducting factorial experiments to disentangle stressor interactions by testing their individual and combined effects. However, the diversity of stressors and …

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Author response for "Studying interactions among anthropogenic stressors in freshwater ecosystems: A systematic review of 2396 multiple‐stressor experiments"

James Orr, Samuel J. Macaulay, Adriana Mordente, Benjamin Burgess et autres

Author response for "Studying interactions among anthropogenic stressors in freshwater ecosystems: A systematic review of 2396 multiple‐stressor experiments"

James Orr, Samuel J. Macaulay, Adriana Mordente, Benjamin Burgess et autres

Winter is coming: Interactions of multiple stressors in winter and implications for the natural world

Khuong V. Dinh, Dania Albini, James Orr, Samuel J. Macaulay et autres

Winter is a key driver of ecological processes in freshwater, marine and terrestrial ecosystems, particularly in higher latitudes. Species have evolved various adaptive strategies to cope with food limitations and the cold and dark wintertime. However, human-induced climate change and other anthropogenic …

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Interactive Effects of Warming and Pollutants on Marine and Freshwater Invertebrates

Khuong V. Dinh, Heidi Sjursen Konestabo, Katrine Borgå, Ketil Hylland et autres

Abstract Purpose of Review Global warming and pollution are among the five major causes of global biodiversity loss, particularly in aquatic invertebrates which are highly diverse but understudied. In this review, we highlight advancements in current environmental studies investigating the interactive effects …

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Dataset for: CHRONIC TOXICITIES OF NEONICOTINOIDS TO NYMPHS OF THE COMMON NEW ZEALAND MAYFLY DELEATIDIUM SPP.

Samuel J. Macaulay, Robert E. Alumbaugh, Seán Lyons, Jeremy J. Piggott et autres

Neonicotinoid insecticides have been shown to have high chronic relative to acute toxicity, therefore short-term toxicity tests of ≤ 96 hours in duration may underestimate their environmental risks. Among non-target aquatic invertebrates, insects of the orders Diptera and Ephemeroptera have been found …

Warming and imidacloprid pulses determine macroinvertebrate community dynamics in experimental streams

Samuel J. Macaulay, Kimberly J. Hageman, Jeremy J. Piggott, Noël P. D. Juvigny‐Khenafou et autres

Sustainable management of freshwater and pesticide use is essential for mitigating the impacts of intensive agriculture in the context of a changing climate. To better understand how climate change will affect the vulnerability of freshwater ecosystems to chemical pollutants, more empirical evidence …

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