Different refuge types dampen exotic invasion and enhance diversity at the whole ecosystem scale in a heterogeneous river system

Astorg, Louis; Sanderson, S. Laurie; Côté-Gravel, Virginy; Sorbara, Freedom; Windle, Matthew J.S.; Hendry, Andrew P.; Derry, Alison M.

doi:10.1007/s10530-020-02374-7

Cited by 14 publications

(30 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conductivity was positively correlated (R 2 = 0.8) with dissolved calcium ion concentrations across this environmental gradient (Figure S1). Although there is some intra-annual variation in water calcium with season and between years, the difference in water calcium between the water masses entering Lac St. Louis remain consistently greater than 19.2 mg/L (Astorg et al, 2021;Derry et al, 2013;Environnement et changements climatiques Canada, 2019, 2020Kestrup & Ricciardi, 2010). The low concentrations of calcium in the Ottawa River relative to the St. Lawrence River compare with low calcium treatment levels used in many experimental settings of other studies (Baldwin et al, 2012;Iacarella & Ricciardi, 2015;Metz et al, 2014).…”

Section: Study Systemmentioning

confidence: 89%

“…However, the fitness costs that underpin pelvic reduction in calcium-poor water remain unclear (Rollins et al, 2014). In our study system, predation pressure is likely high in both water types given the nearly ubiquitous presence of native predators (Astorg et al, 2021). In particular, P. caprodes, L. gibbosus, and P. flavescens in both water types are known to be important prey for many predators, including Micropterus dolomieu (Smallmouth Bass), Esox lucius (Northern Pike), Sander canadensis (Sauger), and Esox masquinongy (Muskellunge) (Bernatchez & Giroux, 2012).…”

Section: Why Do Fish In Calcium-poor Environments Maintain Relatively High Scalar Calcium?mentioning

confidence: 98%

“…The low concentrations of calcium in the Ottawa River relative to the St. Lawrence River compare with low calcium treatment levels used in many experimental settings of other studies (Baldwin et al, 2012;Iacarella & Ricciardi, 2015;Metz et al, 2014). In addition to conductivity and dissolved aqueous calcium, the two water masses in Lac St. Louis from the Ottawa River and the Upper St. Lawrence River, respectively, have other different environmental conditions, such as different concentrations of dissolved organic carbon (DOC; 3.64 mg/L on the south shore versus 19.70 mg/L on the north shore) and differences in food webs (Astorg et al, 2021). Research on acidification shows important effects on bone calcium concentrations, bone ossification, and eggshell thickness (Nybø et al, 1997;Ormerod et al, 1988Ormerod et al, , 1991.…”

Section: Study Systemmentioning

confidence: 99%

“…Calcium appears to be limiting to certain aquatic organisms in this ecosystem because, although native fish and macroinvertebrate species are distributed throughout the calcium gradient (Astorg et al, 2021), most Ponto-Caspian invasive species (Neogobius melanostomus, Echinogammarus ischnus, and Dreissena polymorpha) are restricted to only the high-calcium part of the environmental gradient (Astorg et al, 2021;Iacarella & Ricciardi, 2015;Jones & Ricciardi, 2005;Palmer & Ricciardi, 2005).…”

Section: Study Systemmentioning

confidence: 99%

“…Finally, gene expression studies would indicate which genes might be involved in differential responses to calcium, and genomic analyses would indicate if those genes had corresponding divergence in their sequences. Although some systems are "even more ion-poor," previous studies have used the terms "ion-poor" and "ion-rich" highlighting the important contrast in calcium availability between the two water bodies (Astorg et al, 2021;Derry et al, 2013). Future studies could focus on fish collected from ecosystems with more extreme calcium limitation (e.g., freshwater lochs on North Uist, Scotland (Giles, 1983)) and/or in ecosystems that have experienced recent declines in water calcium (e.g., associated with forest harvesting in the watershed; (Jeziorski et al, 2008)).…”

Section: How Do Fish Maintain the Narrow Range Of Scalar Calcium?mentioning

confidence: 99%

See 4 more Smart Citations

Phenotypic stability in scalar calcium of freshwater fish across a wide range of aqueous calcium availability in nature

Sanderson

Derry

Hendry

2021

Ecology and Evolution

Self Cite

View full text Add to dashboard Cite

Spatial environmental gradients can promote adaptive differences among conspecific populations as a result of local adaptation or phenotypic plasticity. Such divergence can be opposed by various constraints, including gene flow, limited genetic variation, temporal fluctuations, or developmental constraints. We focus on the constraint that can be imposed when some populations are found in locations characterized by low levels of an essential nutrient. We use scales of wild fish to investigate phenotypic effects of spatial variation in a potentially limiting nutrient—calcium. If scale calcium (we use “scalar” calcium for consistency with the physiology literature) simply reflects environmental calcium availability, we expect higher levels of scalar calcium in fish from calcium‐rich water, compared to fish from calcium‐poor water. To consider this “passive response” scenario, we analyzed scalar calcium concentrations from three native fish species ( Lepomis gibbosus , Percina caprodes , and Perca flavescens ) collected at multiple sites across a dissolved calcium gradient in the Upper St. Lawrence River. Contradicting the “passive response" scenario, we did not detect strong or consistent relationships between scalar calcium and water calcium. Instead, for a given proportional increase in water calcium across the wide environmental gradient, the corresponding proportional change in scalar calcium was much smaller. We thus favor the alternative “active homeostasis” scenario, wherein fish from calcium‐poor water are better able to uptake, mobilize, and deposit calcium than are fish from calcium‐rich water. We further highlight the importance of studying functional traits, such as scales, in their natural setting as opposed to only laboratory studies.

show abstract

Section: Study Systemmentioning

confidence: 89%

Section: Why Do Fish In Calcium-poor Environments Maintain Relatively High Scalar Calcium?mentioning

confidence: 98%

Section: Study Systemmentioning

confidence: 99%

Section: Study Systemmentioning

confidence: 99%

Section: How Do Fish Maintain the Narrow Range Of Scalar Calcium?mentioning

confidence: 99%

See 3 more Smart Citations

Phenotypic stability in scalar calcium of freshwater fish across a wide range of aqueous calcium availability in nature

Sanderson

Derry

Hendry

2021

Ecology and Evolution

Self Cite

View full text Add to dashboard Cite

show abstract

Rising water temperature in rivers: Ecological impacts and future resilience

Johnson,

Albertson,

Algar

et al. 2024

WIREs Water

View full text Add to dashboard Cite

Rising water temperatures in rivers due to climate change are already having observable impacts on river ecosystems. Warming water has both direct and indirect impacts on aquatic life, and further aggravates pervasive issues such as eutrophication, pollution, and the spread of disease. Animals can survive higher temperatures through physiological and/or genetic acclimation, behavioral and phenological change, and range shifts to more suitable locations. As such, those animals that are adapted to cool‐water regions typically found in high altitudes and latitudes where there are fewer dispersal opportunities are most at risk of future extinction. However, sub‐lethal impacts on animal physiology and phenology, body‐size, and trophic interactions could have significant population‐level effects elsewhere. Rivers are vulnerable to warming because historic management has typically left them exposed to solar radiation through the removal of riparian shade, and hydrologically disconnected longitudinally, laterally, and vertically. The resilience of riverine ecosystems is also limited by anthropogenic simplification of habitats, with implications for the dispersal and resource use of resident organisms. Due to the complex indirect impacts of warming on ecosystems, and the species‐specific physiological and behavioral response of organisms to warming, predicting how river ecosystems will change in the future is challenging. Restoring rivers to provide connectivity and heterogeneity of conditions would provide resilience to a range of expected co‐occurring pressures, including warming, and should be considered a priority as part of global strategies for climate adaptation and mitigation.This article is categorized under: Science of Water > Water and Environmental Change Water and Life > Nature of Freshwater Ecosystems Water and Life > Stresses and Pressures on Ecosystems

show abstract

Local coexistence of native and invasive ant species is associated with micro-spatial shifts in foraging activity

2021

View full text Add to dashboard Cite

Invasive species often displace native species by outcompeting them. Yet, some native species can persist even in heavily invaded areas. The mechanisms mediating this local coexistence are still unclear. Fine-scale microclimatic heterogeneity could promote the local coexistence of native and invasive animal competitors. We tested if native ant species could coexist with a recent ant invader, Tapinoma magnum, by shifting their foraging activity in time or space to different microclimatic conditions. We compared the foraging activity of native epigeic ant species among invaded and uninvaded sites. We collected ants at baits in green spaces on the north, east, south and west sides of buildings in the morning, at noon and in the afternoon to test if native species foraged under different microclimatic conditions in invaded sites. Invaded sites had lower ant species richness, diversity, and relative abundance. The native black garden ant Lasius nigerone of the most widespread Palearctic ant speciespersisted at high densities in invaded areas but foraged less on the east side of buildings and more on the west side.Microclimatic heterogeneity might promote native and invasive species coexistence by allowing some native species to shift their foraging behaviour to locally avoid or outcompete invasive competitors. Better understanding how fine-scale micro-environmental heterogeneity affects native species' persistence in invaded areas could help to predict and locally mitigate the negative impacts of biological invasions.

show abstract

Different refuge types dampen exotic invasion and enhance diversity at the whole ecosystem scale in a heterogeneous river system

Cited by 14 publications

References 81 publications

Phenotypic stability in scalar calcium of freshwater fish across a wide range of aqueous calcium availability in nature

Phenotypic stability in scalar calcium of freshwater fish across a wide range of aqueous calcium availability in nature

Rising water temperature in rivers: Ecological impacts and future resilience

Local coexistence of native and invasive ant species is associated with micro-spatial shifts in foraging activity

Contact Info

Product

Resources

About