Effects of the non-native amphibian species Discoglossus pictus on the recipient amphibian community: niche overlap, competition and community organization

Richter‐Boix, Àlex; Garriga, Núria; Montori, Albert; Franch, Marc; Sebastián, Olatz San; Villero, Dani; Llorente, Gustavo A.

doi:10.1007/s10530-012-0328-4

Cited by 34 publications

(28 citation statements)

References 87 publications

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“…, Richter‐Boix et al. ). The shift may be explained by competition resulting in lowered species richness in localities invaded by house mice, which can translate into fewer opportunities for native species to co‐occur.…”

Section: Discussionmentioning

confidence: 99%

Range expansion of the invasive house mouseMus musculus domesticusinSenegal,WestAfrica: a synthesis of trapping data over three decades, 1983–2014

et al. 2015

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The worldwide intensification of human‐associated exchanges favours the multiplication of biological invasions. Among mammals, rodent species, including the house mouse Mus musculus, are identified as major invaders with profound impacts on native biodiversity, human health and activities. Though contemporary rodent invasions are described on several islands, there are few data describing ongoing house mouse invasions in continental areas. We first outline the known picture of the distribution of the house mouse in Africa. We then describe the ongoing range expansion of the house mouse in Senegal, in order to update its distribution area, assess the location of the invasion front, describe the spatio‐temporal dynamics of the invasion at the country scale and evaluate its impact on native small mammal communities. We briefly review the worldwide status of the house mouse, with special focus on its situation in Africa. Focusing on Senegal, we then use historical records and a large body of spatio‐temporal indoor trapping data obtained from small mammal communities over the last 30 years to analyse the invasion dynamics of the subspecies at the scale of the country. The geographic range of the invasive house mouse is surprisingly poorly known in Africa. In Senegal, we document a large range expansion of the subspecies in human settlements over the whole country within the last 30 years. The invasion is still ongoing further east and south within the country, and has major consequences for small mammal communities and thus probably for risks associated with zoonotic diseases.

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Section: Discussionmentioning

confidence: 99%

Range expansion of the invasive house mouseMus musculus domesticusinSenegal,WestAfrica: a synthesis of trapping data over three decades, 1983–2014

et al. 2015

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“…The essentially carnivorous D. galganoi (Richter‐Boix et al. , Arribas et al. ) performed a potentially maladaptive shift toward higher herbivory in the early spring heat wave, as suggested by the low mass at metamorphosis when compared to strictly carnivorous tadpoles.…”

Section: Discussionmentioning

confidence: 99%

Warm vegetarians? Heat waves and diet shifts in tadpoles

Carreira

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Orizaola

et al. 2016

Ecology

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Temperature can play an important role in determining the feeding preferences of ectotherms. In light of the warmer temperatures arising with the current climatic changes, omnivorous ectotherms may perform diet shifts toward higher herbivory to optimize energetic intake. Such diet shifts may also occur during heat waves, which are projected to become more frequent, intense, and longer lasting in the future. Here, we investigated how heat waves of different duration affect feeding preferences in omnivorous anuran tadpoles and how these choices affect larval life history. In laboratory experiments, we fed tadpoles of three species on animal, plant, or mixed diet and exposed them to short heat waves (similar to the heat waves these species experience currently) or long heat waves (predicted to increase under climate change). We estimated the dietary choices of tadpoles fed on the mixed diet using stable isotopes and recorded tadpole survival and growth, larval period, and mass at metamorphosis. Tadpole feeding preferences were associated with their thermal background, with herbivory increasing with breeding temperature in nature. Patterns in survival, growth, and development generally support decreased efficiency of carnivorous diets and increased efficiency or higher relative quality of herbivorous diets at higher temperatures. All three species increased herbivory in at least one of the heat wave treatments, but the responses varied among species. Diet shifts toward higher herbivory were maladaptive in one species, but beneficial in the other two. Higher herbivory in omnivorous ectotherms under warmer temperatures may impact species differently and further contribute to changes in the structure and function of freshwater environments.

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“…Blaustein et al (2011) argued the importance of researching amphibian declines at the community level and investigating synergistic effects of multiple stressors instead of focusing on single factors. In recent studies, Richter-Boix et al (2013) compared invaded and non-invaded amphibian populations on the Iberian Peninsula to test whether the introduction of Painted Frog (Discoglossus pictus) altered communities. They found that the presence of D. pictus compromised species co-occurrence patterns at the regional scale.…”

Section: Reviewsmentioning

confidence: 99%