Biotic interactions under climate warming: temperature-dependent and species-specific effects of the oligochaete <i>Chaetogaster limnaei</i> on snails

Höckendorff, Stefanie; Früh, Denise; Hormel, Nico; Haase, Peter; Stoll, Stefan

doi:10.1086/683606

Cited by 6 publications

(7 citation statements)

References 40 publications

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“…Because predators consume mosquito species at different rates, knowing which predators are present will be integral to identifying overall mosquito invasion success under a warming climate. This underlines the usefulness of evaluating effects on biotic interactions in addition to individual species’ responses to habitat warming (Höckendorff et al., ).…”

Section: Discussionmentioning

confidence: 97%

“…Thus, our experiments also highlight the importance of temperature‐driven life‐history and behaviour differences in determining overall effects on species with holometabolous life cycles. Moreover, climate warming effects on life history have the potential to alter community structure and function (Dossena et al., ; Höckendorff et al., ), so understanding how climate affects both life history and predation dynamics will be important for managing invaders like mosquitoes.…”

Section: Discussionmentioning

confidence: 99%

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Interactive effects of land use, temperature, and predators determine native and invasive mosquito distributions

2017

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Land‐use and climate change could alter the distribution of both native and exotic mosquitoes by changing abiotic and biotic characteristics of freshwater habitats. We initially studied the influence of land use on standing water habitats, and the subsequent effects on native and exotic mosquito and mosquito‐predator presence. Associated with abiotic habitat characteristics, mosquito‐predator richness was highest in aquatic habitats of natural land uses (forest and grassland), and lowest in human‐modified land uses (pastoral and urban), and the opposite relationship was true for mosquito presence. Based on the outcome of the field survey we investigated the potential effects of climate‐induced habitat warming and drying on interactions between invasive Aedes notoscriptus and native Culex pervigilans mosquitoes and native invertebrate predators affected by the land‐use gradient. Predator presence, which is directly affected by both climate and land‐use change, influenced both mosquito survivorship and behaviour. We found predation rates increased with temperature, but the magnitude of changes depended on both predator and prey identity. In general, higher temperatures increased mosquito pupation rates, but also made mosquitoes more susceptible to predation. Although invasive A. notoscriptus were more susceptible to predation, increased temperature resulted in shorter life cycles, thereby reducing the net effect of increased predation caused by higher temperatures. Overall, our results suggest interactions between temperature, land use and predator identity will be important in determining mosquito distributions, and will likely differ between mosquito species. Such interactions and species‐specific responses will be particularly important if environmental changes facilitate range expansion of invasive mosquito species that are vectors for disease.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Interactive effects of land use, temperature, and predators determine native and invasive mosquito distributions

2017

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“…For all these reasons, P. acuta is often the dominant species in stressed ecosystems (Brackenbury and Appleton 1993;Blakely and Harding 2005;Albrecht et al 2009;Turner and Montgomery 2009;Lance et al 2010), as shown in our study. In its introduced area, some authors demonstrated that the generalist and tolerant P. acuta may outcompete native gastropod species, and thus constitutes a biotic stressor for these latter with consequent changes in community structure and potential decline of some native species (Zukowski and Walker 2009;Höckendorff et al 2015).…”

Section: ) Larval Trematodes Acting As Biotic Stressors And/or Stresmentioning

confidence: 99%

Decline of freshwater gastropods exposed to recurrent interacting stressors implying cyanobacterial proliferations and droughts

Gérard

Lance

2019

Aquat Ecol

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Freshwater biota increasingly undergo multiple stressors but we poorly understand to what extent they influence dynamics of community structure. Here, we study the impact of combined stressor exposure on gastropods at 9year interval, through a monthly one-year (2013) monitoring, also providing data on the occurrence of other macroinvertebrate taxa. Previous study in 2004 showed the occurrence of cyanobacteria proliferations, drought, trematode parasites and invasive non-native pulmonate Physa acuta. During 2013, we always detected cyanobacterial microcystins (MCs) in gastropods, from 59 to 4149 ng.g-1 fresh mass (vs 0-246 ng.g-1 in 2004), suggesting a continuous and increased MC-intoxication. Environmental intracellular MC concentrations were high (8-41 µg.L-1) from August to October 2013, whereas only detected in August 2004 (17 µg.L-1). In 2013, we recorded no trematodes among the 2490 sampled gastropods, and P. acuta represented 94% of gastropods (vs 58% in 2004). After August 2013, nearly all gastropods disappeared as most other macroinvertebrates (except Chironomidae, Ephemeroptera and Trichoptera). The whole decline of gastropods and other macroinvertebrates, and the absence of trematodes strongly suggest adverse conditions in the study-site. Despite acute stressful conditions suggested above, gastropod abundance was 13-fold higher in June 2013 (vs 2004), reflecting successful recolonization and efficient breeding. Most gastropods exposed to drought and toxic bloom were young vulnerable stages. Thus, we supposed alternation of local gastropod extinctions vs recolonization that could induce on a long term a loss of diversity to the detriment of the most sensitive species. Keywords Gastropoda; co-occurring multiple stressors; toxic blooms; water withdrawal; invasive species; trematodes. the year 2013 with data obtained during some months of 2004 (Gérard et al. 2009; Gérard, pers. com.). We aimed to check long-term changes at 9-year interval in the composition of gastropods, under the influence of exposure to the following interacting stressors: cyanobacteria proliferations, droughts, trematode parasites, and invasive non-native P. acuta. Material and methods Study-site The Frémur River (western France, 48°32' N, 2°04' W), representative of many small coastal catchments in Western Europe, is scattered with many dam obstructions that reduce the average velocity and increase the water depth. As a result, the total extent of the catchment is 5 ha of running water (streams) and 75 ha of still waters (ponds and reservoirs). The most important dam (14 m high) creates a 3 x 10 6 m 3 reservoir for drinking water.

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“…Moreover, aliens often have more flexible diets (Boland et al 2008), a greater ability to procure food resources (Krist and Charles 2012), use available resources more efficiently (Morrison and Hay 2011), and have better dispersal and survival abilities (Sakai et al 2001). Finally, alien species may have higher tolerances to parasites or act as their vectors (Höckendorff et al 2015) and tolerate higher levels of pollution (Vermonden et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…We analyzed changes in growth rates in the two snail species relative to population density and temperature in single and mixed species treatments. As growth rate is an important life history trait of snail species which is commonly used as an endpoint in studies on biotic interactions (Riley et al 2008;Stoll et al 2013;Höckendorff et al 2015) we specifically tested the hypothesis that changes in temperature differentially affect growth rates of P. acuta and P. fontinalis along a density gradient of the two species.…”

Section: Introductionmentioning

confidence: 99%

Temperature drives asymmetric competition between alien and indigenous freshwater snail species, Physa acuta and Physa fontinalis

2016

Self Cite

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Biological invasion represents one of the major threats to global biodiversity as alien species often displace indigenous species. Knowledge of the mechanisms behind such displacements and the driving factors of the competitive superiority of the alien species remain limited. We combined analysis of field data and laboratory experiments examining species interactions to investigate the impact of temperature in the case of the alien freshwater snail Physa acuta and the indigenous snail Physa fontinalis. From field data, we identified higher temperature as the most important difference between sites populated by P. acuta and P. fontinalis. Results of the species interaction experiment conducted at 15, 20, and 25°C revealed that the competitive superiority of P. acuta over P. fontinalis increases at warmer temperatures. In single species treatments, increasing temperature stimulated growth rates in both species. Coexistence treatments revealed an asymmetric competitive interaction between the two snail species. In both species, the density of conspecifics did not affect growth rates; however, density of heterospecifics did. This effect of heterospecifics varied with temperature. At 15°C, the presence of heterospecifics stimulated the growth rates of both species, while at higher temperatures the presence of heterospecifics stimulated the growth rate in P. acuta only, but inhibited the growth rate in P. fontinalis. Our study shows that temperature can be a powerful driver of competitive outcomes between alien and indigenous species and highlight that the environmental context influences species interactions and impacts of alien species.

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Biotic interactions under climate warming: temperature-dependent and species-specific effects of the oligochaete Chaetogaster limnaei on snails

Cited by 6 publications

References 40 publications

Interactive effects of land use, temperature, and predators determine native and invasive mosquito distributions

Interactive effects of land use, temperature, and predators determine native and invasive mosquito distributions

Decline of freshwater gastropods exposed to recurrent interacting stressors implying cyanobacterial proliferations and droughts

Temperature drives asymmetric competition between alien and indigenous freshwater snail species, Physa acuta and Physa fontinalis

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