Invading Herbivory: The Golden Apple Snail Alters Ecosystem Functioning in Asian Wetlands

Carlsson, Nils O. L.; Brönmark, Christer; Hansson, Lars‐Anders

doi:10.1890/03-3146

Cited by 343 publications

(286 citation statements)

References 30 publications

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“…Other study also showed that when different food types were offered, P. canaliculata grazed heavily on both species of macrophytes provided 10 . A study conducted in Laos also supported this study that the absence of aquatic plants in wetlands may be linked to the presence of P. canaliculata as this species can eat almost any plant 15 . In contrast, P. scutata tended to be selective for food as it preferred S. cucullata over other species.…”

Section: Discussionsupporting

confidence: 71%

“…Our study is in agreement with that of Carlsson 15 who reported that P. canaliculata had a strong negative effect on the growth and biomass of the preferred plants S. cucullata and L. adscendens that had been grazed down to very low levels. According to local residents, S. cucullata and L. adscendens have disappeared from the Vientiane wetlands since the snail was introduced in 1992 15 . Substantial grazing by P. scutata on S. cucullata may likely have been due to the softness of this plant species or perhaps it was easier to eat since it is a floating type of vegetation.…”

Section: Discussionmentioning

confidence: 99%

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The potential ecological impact of the exotic snail Pomacea canaliculata on the Thai native snail Pila scutata

Chaichana¹,

Sumpan²

2014

ScienceAsia

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The aims of this study were to compare food consumption, growth rates, time to reach food, and food preferences of the golden apple snail (Pomacea canaliculata) and the Thai native snail (Pila scutata). The eggs of the two species collected from natural habitats were hatched in the laboratory. Snails of one month were raised together and separately to determine growth rates and food consumption. It was found that the growth rate of P. canaliculata was significantly faster than that of P. scutata when both were raised together and when they were raised separately. Both snails grew better when raised separately. P. canaliculata consumed significantly more food than P. scutata. When raised separately, P. canaliculata crawled to food at a significantly faster rate than P. scutata. On average, P. canaliculata and P. scutata took 8.2 ± 3.2 and 15.1 ± 3.1 min, respectively, to reach the food offered. To test for food preferences, four local species of aquatic plants, namely Hydrilla verticillata, Nymphaea lotus, Salvinia cucullata, and Alternanthera triandra were provided to both snails. It was discovered that P. canaliculata consumed all the four different food species offered. In contrast, P. scutata tended to feed on S. cucullata rather than the other species. It is concluded that P. canaliculata was superior to P. scutata in terms of growth rates, food consumption, and was also non-selective for food and therefore there is no doubt that in a shared habitat, P. canaliculata will influence P. scutata.

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Section: Discussionsupporting

confidence: 71%

Section: Discussionmentioning

confidence: 99%

The potential ecological impact of the exotic snail Pomacea canaliculata on the Thai native snail Pila scutata

Chaichana¹,

Sumpan²

2014

ScienceAsia

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“…Although this may have played a role in the present study, the Wolffia outbreak is more likely to have resulted from the complete elimination of apple snails (Ampullariidae; Table 4). Apple snails are known to be efficient grazers of aquatic macrophytes and have even been reported to leave the water column to forage for plants (Carlsson et al 2004;Dudgeon 1999). The complete coverage of the water surface by Wolffia sp.…”

Section: Effects On Other End Points and Ecologic Effect Chainmentioning

confidence: 99%

Direct and Indirect Effects of the Fungicide Carbendazim in Tropical Freshwater Microcosms

Daam

Satapornvanit

Brink

et al. 2009

Arch Environ Contam Toxicol

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Direct and indirect effects of the fungicide carbendazim on ecosystem structure and functioning were studied B8 weeks after application (nominal concentrations: 0, 3.3, 33, 100, and 1000 lg/L) to outdoor microcosms in Thailand. Direct effects on macroinvertebrates are discussed in detail in a separate article. The present article presents the effects on other end points and discusses the hypothesized ecologic effect chain. Negative treatment effects on the zooplankton community were only recorded for the highest carbendazim treatment (NOEC community = 100 lg/L). The rotifer Keratella tropica, cladocerans (Moina micrura, Ceriodaphnia cornuta, and Diaphanosoma sp.), and cyclopoid copepods were decreased or even eliminated at this treatment level. The decrease in zooplankton and macroinvertebrate abundances was accompanied by an increase in numbers of several tolerant invertebrates, presumably caused by a release from competition and predation. The death of sensitive invertebrates probably also led to an overall decreased grazing pressure because increased levels of chlorophyll-a and bloom of the floating macrophyte Wolffia sp. were noted. The increase in primary producers is discussed to be the probable cause of changes in physicochemical water conditions, eventually resulting in an anoxic water layer during the last 3 weeks of the experiment. This is likely to have resulted in decreased invertebrate abundances noted in that period. Furthermore, the decreased decomposition of Musa (banana) leaves observed 8 weeks after application is considered to be the indirect effect of a decreased microbial activity resulting from these anoxic water conditions, rather than a direct toxic effect of carbendazim.

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“…Biotic interactions are major drivers for ecosystem functioning and evolutionary processes, being capable of altering ecosystem productivity [1], determining geographical distributions of species [2] and influencing evolutionary processes. In the present context of global environmental crisis, understanding the dynamic interplay between climate and species interactions is crucial to predict how ecosystems will respond to climate change.…”

Section: Introductionmentioning

confidence: 99%

Corals hosting symbiotic hydrozoans are less susceptible to predation and disease

et al. 2017

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CitationMontano S, Fattorini S, Parravicini V, Berumen ML, Galli P, et al. (2017) No changes can be made after publication. Q1A funding statement has been added to your paper; please check that this is correct. SQ1Your supplementary material will be published online alongside your article and on rs.figshare.com exactly as the file(s) are provided. Therefore, please could you either confirm that your supplementary material is correct, or -if you have any changes to make to these files -email these along with your proof corrections to the journal inbox. Your ESM files are listed here for your convenience: SM1.csv SQ2Your paper has exceeded the free page extent and will attract page charges. Here we show how a largely overseen association such as that between hydrozoans and scleractinian corals could be possibly associated with a reduction in coral susceptibility to ever-increasing predator and disease outbreaks. We examined 2450 scleractinian colonies (from both Maldivian and the Saudi Arabian coral reefs) searching for non-random patterns in the occurrence of hydrozoans on corals showing signs of different health conditions (i.e. bleaching, algal overgrowth, corallivory and different coral diseases). We show that, after accounting for geographical, ecological and co-evolutionary factors, signs of disease and corallivory are significantly lower in coral colonies hosting hydrozoans than in hydrozoan-free ones. This finding has important implications for our understanding of the ecology of coral reefs, and for their conservation in the current scenario of global change, because it suggests that symbiotic hydrozoans may play an active role in protecting their scleractinian hosts from stresses induced by warming water temperatures.

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Invading Herbivory: The Golden Apple Snail Alters Ecosystem Functioning in Asian Wetlands

Cited by 343 publications

References 30 publications

The potential ecological impact of the exotic snail Pomacea canaliculata on the Thai native snail Pila scutata

The potential ecological impact of the exotic snail Pomacea canaliculata on the Thai native snail Pila scutata

Direct and Indirect Effects of the Fungicide Carbendazim in Tropical Freshwater Microcosms

Corals hosting symbiotic hydrozoans are less susceptible to predation and disease

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