Dynamics of ground-dwelling arthropod metacommunities in intermittent streams: The key role of dry riverbeds

Sánchez-Montoya, M. M.; Tockner, Klement; Schiller, Daniel von; Miñano, J.; Catarineu, Chema; Lencina, José Luís; Barberá, Gonzalo G.; Ruhí, Albert

doi:10.1016/j.biocon.2019.108328

Cited by 21 publications

(17 citation statements)

References 55 publications

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“…Moreover, they harbour a disproportionately large fraction of the world's total biodiversity (Dudgeon et al, 2006;Balian et al, 2008). Nevertheless, the ecological importance of riverine habitats for fauna may have been underestimated (Sánchez-Montoya et al, 2017) as most assessments tend to ignore the fact that a large proportion of rivers undergo a dry phase that could potentially have positive effects on river-wide biodiversity (Datry et al, 2014;Sánchez-Montoya et al, 2020a, 2020b.…”

Section: Introductionmentioning

confidence: 99%

Ecological values of intermittent rivers for terrestrial vertebrate fauna

Sánchez-Montoya

Gómez

Calvo

et al. 2022

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

Ecological values of intermittent rivers for terrestrial vertebrate fauna

Sánchez-Montoya

Gómez

Calvo

et al. 2022

Science of The Total Environment

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“…For instance, a recent study about ground-dwelling arthropods concluded that dry channels can support a larger number of unique species, and more species overall, compared to perennial reaches [23]. Moreover, it has been recently documented that some fish species can survive in the hyporheic zone of non-perennial rivers in the absence of surface water (i.e., in the water-saturated interstitial spaces in the subsurface of dry riverbeds) [24,25].…”

Section: Discussionmentioning

confidence: 99%

Are Non-Perennial Rivers Considered as Valuable and Worthy of Conservation as Perennial Rivers?

et al. 2020

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Non-perennial rivers, watercourses that cease to flow at some point in time and space, are widespread globally but often lack effective protections. Although it is thought that these ecosystems are undervalued by society, empirical studies exploring people’s perceptions of non-perennial rivers are uncommon. We carried out an image-based survey at three U.S. universities to measure students’ perception of riverscapes according to seven characteristics: aesthetics, naturalness, habitat for biodiversity, habitat for fish, need of human intervention, importance for human well-being, and conservation value. Our results showed that non-perennial rivers are generally considered less valuable and worthy of conservation than their perennial counterparts. Furthermore, several factors influenced peoples’ perception of non-perennial rivers, including where they live, their educational history, how often they visit rivers, their leisure activities, and whether they live close to a river. Our findings suggested the need to improve people’s perceptions of non-perennial rivers as a step toward increased protection for these ecosystems. This current challenge demands combined actions by researchers from diverse disciplines and professionals working from different perspectives, including policymakers and educators.

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“…This is because rewetting events might act as downstream dispersal paths for many species that are able to survive inundation temporarily (Corti & Datry, 2012). However, very few attempts to explore the metacommunity dynamics of TSAIs are available and results are still unclear (Corti & Datry, 2016; Sánchez‐Montoya et al ., 2020). Lateral mass dispersal from adjacent terrestrial habitats could outweigh longitudinal dispersal along the river networks, except during rewetting events which would redistribute TSAIs downstream.…”

Section: Current Ecological Understanding Of Tsaismentioning

confidence: 99%

The terrestrial and semi‐aquatic invertebrates of intermittent rivers and ephemeral streams

2022

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Intermittent rivers and ephemeral streams (IRES), which cease flow and/or dry at some point, are the most abundant waterways on earth, and are found on every continent. They can support a diverse, and often abundant, terrestrial and semi-aquatic invertebrate (TSAI) fauna, which has been poorly explored due to its position at the fringe between aquatic and terrestrial disciplines. TSAIs can inhabit a variety of habitat types, including the shoreline, the surface of exposed gravel bars, unsaturated gravels, dry riverbeds, riparian zones, and floodplains. Much less is known about the species composition and ecological roles of TSAIs of IRES than their aquatic counterparts, with TSAIs being largely overlooked in conceptual models, legislation, policy, and ecological monitoring. Herein we review the TSAI literature that has increased substantially over the last decade and present conceptual models describing how TSAIs respond to hydrological changes in IRES. Then, we test these models with data collected during wet and dry phases in IRES from Australia and France. These generic models can be utilised by water managers and policy makers, ensuring that both wet and dry phases are considered in the management and protection of IRES. IRES should be viewed as a habitat continuum through time, with taxa from a pool of aquatic, semi-aquatic and terrestrial invertebrates inhabiting at any hydrological stage. We call for collaboration among terrestrial and aquatic ecologists to explore these invertebrates and ecosystems further.

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Dynamics of ground-dwelling arthropod metacommunities in intermittent streams: The key role of dry riverbeds

Cited by 21 publications

References 55 publications

Ecological values of intermittent rivers for terrestrial vertebrate fauna

Ecological values of intermittent rivers for terrestrial vertebrate fauna

Are Non-Perennial Rivers Considered as Valuable and Worthy of Conservation as Perennial Rivers?

The terrestrial and semi‐aquatic invertebrates of intermittent rivers and ephemeral streams

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