Species traits and reduced habitat suitability limit efficacy of climate change refugia in streams

Troia, Matthew J.; Kaz, Anna; Niemeyer, J. Cameron; Giam, Xingli

doi:10.1038/s41559-019-0970-7

Cited by 42 publications

(35 citation statements)

References 67 publications

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“…Mountain streams, such as in the Andean Amazon, can reduce the dispersal lag and even act as thermal refugia because warming rates and climate velocities in headwater streams should remain low, owing to local temperature gradients related to steep topography (Isaak et al., 2016; Troia et al., 2019). Other additional non‐climatic habitat conditions (e.g., habitat size, substrate) may preclude the establishment of species dispersing upstream (Troia et al., 2019).…”

Section: Discussionmentioning

confidence: 99%

“…For instance, deep zones of the Amazonian mainstems (median depth of 20–30 m in the Solimoes river for instance) may buffer air‐temperature changes and serve as thermal refuges, further delaying species responses, while natural barriers like rapids and waterfalls may increase their dispersal lag (Gibson‐Reinemer et al., 2017; Torrente‐Vilara, Zuanon, Leprieur, Oberdorff, & Tedesco, 2011). Mountain streams, such as in the Andean Amazon, can reduce the dispersal lag and even act as thermal refugia because warming rates and climate velocities in headwater streams should remain low, owing to local temperature gradients related to steep topography (Isaak et al., 2016; Troia et al., 2019). Other additional non‐climatic habitat conditions (e.g., habitat size, substrate) may preclude the establishment of species dispersing upstream (Troia et al., 2019).…”

Section: Discussionmentioning

confidence: 99%

“…However, the potential consequences of climate change on freshwater fishes remains poorly explored compared to other taxa (Pacifici et al., 2015). Furthermore, current knowledge is highly biased toward cold‐water fish species from temperate regions (Comte, Buisson, Daufresne, & Grenouillet, 2013; Troia, Kaz, Niemeyer, & Giam, 2019), which conform a small portion of the global fish taxonomic and life‐histories diversity compared to tropical environments (Oberdorff et al., 2011; Toussaint, Charpin, Brosse, & Villéger, 2016).…”

Section: Introductionmentioning

confidence: 99%

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The combined effects of climate change and river fragmentation on the distribution of Andean Amazon fishes

Herrera‐R

Oberdorff

Anderson

et al. 2020

Global Change Biology

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Upstream range shifts of freshwater fishes have been documented in recent years due to ongoing climate change. River fragmentation by dams, presenting physical barriers, can limit the climatically induced spatial redistribution of fishes. Andean freshwater ecosystems in the Neotropical region are expected to be highly affected by these future disturbances. However, proper evaluations are still missing. Combining species distribution models and functional traits of Andean Amazon fishes, coupled with dam locations and climatic projections (2070s), we (a) evaluated the potential impacts of future climate on species ranges, (b) investigated the combined impact of river fragmentation and climate change and (c) tested the relationships between these impacts and species functional traits. Results show that climate change will induce range contraction for most of the Andean Amazon fish species, particularly those inhabiting highlands. Dams are not predicted to greatly limit future range shifts for most species (i.e., the Barrier effect). However, some of these barriers should prevent upstream shifts for a considerable number of species, reducing future potential diversity in some basins. River fragmentation is predicted to act jointly with climate change in promoting a considerable decrease in the probability of species to persist in the long‐term because of splitting species ranges in smaller fragments (i.e., the Isolation effect). Benthic and fast‐flowing water adapted species with hydrodynamic bodies are significantly associated with severe range contractions from climate change.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The combined effects of climate change and river fragmentation on the distribution of Andean Amazon fishes

Herrera‐R

Oberdorff

Anderson

et al. 2020

Global Change Biology

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“…Human activities directly shape the elevational distribution of habitats, often irrespective of the direction and speed of climate change 15,18 . As a result, climate warming may cause a spatial mismatch between suitable climatic conditions and habitat availability [19][20][21] . Under these circumstances, habitat distribution and quality are expected to play a central role in explaining local population dynamics and climate-induced range shifts [22][23][24][25][26] , in particular for specialist, rare and threatened species whose range shift dynamics are likely to be most sensitive to the elevational distribution of suitable habitats.…”

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confidence: 99%

Consistent population declines but idiosyncratic range shifts in Alpine orchids under global change

et al. 2020

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Mountains are plant biodiversity hotspots considered particularly vulnerable to multiple environmental changes. Here, we quantify population changes and range-shift dynamics along elevational gradients over the last three decades for c. two-thirds of the orchid species of the European Alps. Local extinctions were more likely for small populations, after habitat alteration, and predominated at the rear edge of species’ ranges. Except for the most thermophilic species and wetland specialists, population density decreased over time. Declines were more pronounced for rear-edge populations, possibly due to multiple pressures such as climate warming, habitat alteration, and mismatched ecological interactions. Besides these demographic trends, different species exhibited idiosyncratic range shifts with more than 50% of the species lagging behind climate warming. Our study highlights the importance of long-term monitoring of populations and range distributions at fine spatial resolution to be able to fully understand the consequences of global change for orchids.

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“…The potential of D ist N et and R esist N et for increased automation also serves to encourage large-scale comparative riverscape studies involve variation among species in spatial or temporal trends, the results of which could vary substantially as a function of trait synergism or life histories (Comte et al 2014, McManamay and Frimpong 2015, Troia et al 2019). While rare, such intraspecific studies have implicated ongoing evolution within dendritic networks, while testing specific ecological questions (Fourtune et al 2016, Pilger et al 2017, Paz-Vinas et al 2018, Blanchet et al 2020).…”

Section: Discussionmentioning

confidence: 99%

Quantifying isolation-by-resistance and connectivity in dendritic ecological networks

Chafin

Mussmann

Douglas

2021

Preprint

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Statistical methods that quantify individual movements have limited applicability within dendritic ecological networks (DENs), to include riverscapes. We promote an approach herein by deriving an analytical framework (=DISTNET and RESISTNET) that more appropriately quantifies differentiation by meshing individual DEN segments with fitted distances and annotated environmental features. We first explored the spatial arrangement of diversity in a river network by fitting pairwise distances against graph edges. We then derived effective resistance models (e.g., as a composite of an array of possible environmental covariates) by using a genetic algorithm for heuristic model selection, invoking circuit theory (CIRCUITSCAPE) to form a graph-based complement to RESISTANCEGA (a landscape ecology package). Although numerous pairwise distance metrics can be employed, we utilized genetic distances encompassing 13,218 ddRAD loci from N=762 Speckled Dace (Cyprinidae: Rhinichthys osculus) sampled at 78 Colorado River localities (u=9.77/site). When distances for each locus were fitted into the network, we found intraspecific divergences due to stream reaches were greater than expected when distances alone. In fitting model-averaged effective resistance models to the same network, we showed the manner by which a host of anthropogenic and environmental variables contribute to patterns of connectivity underlying riverscape genetic differentiation. Our framework represents a contemporary approach to deriving metapopulation/ metacommunity structure within DENs, in that it allows: (a) The extension of projections into unsampled temporal/spatial components; (b) Comparisons to be made among species and/or drainages, both of which benefit multi-species management; and (c) the quantification of locus-specific patterns, from which adaptive hypotheses could then be derived.

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Species traits and reduced habitat suitability limit efficacy of climate change refugia in streams

Cited by 42 publications

References 67 publications

The combined effects of climate change and river fragmentation on the distribution of Andean Amazon fishes

The combined effects of climate change and river fragmentation on the distribution of Andean Amazon fishes

Consistent population declines but idiosyncratic range shifts in Alpine orchids under global change

Quantifying isolation-by-resistance and connectivity in dendritic ecological networks

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