Invasive moss alters patterns in life-history traits and functional diversity of spiders and carabids

Schirmel, Jens; Buchholz, Sascha

doi:10.1007/s10530-012-0352-4

Cited by 30 publications

(27 citation statements)

References 55 publications

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“…However, affected sites have near 97% more M. tuberculata individuals (Schirmel & Buchholz 2013). A similar observation was made in this work, whereby the exotic species C. largillierti was found in sites with good environmental conditions.…”

Section: Discussionsupporting

confidence: 89%

“…Apart from altering abiotic conditions and taxonomic composition, invasive species modify functional diversity, which is reflected in alterations of ecosystem functions and changes in productivity. These have consequences for ecosystem services (Schirmel & Buchholz 2013) such as hindering water self-purification capacity (Lorenz & Pusch 2013).…”

Section: Discussionmentioning

confidence: 99%

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Potential ecological distribution of alien mollusk Corbicula largillierti and its relationship with human disturbance in a semi-arid reservoir

et al. 2016

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The introduction of exotic mollusk species has resulted in loss of biodiversity in semi-arid neotropical aquatic ecosystems. This study aims to relate the presence and density of Corbicula largillierti species to human disturbance, providing data for the conservation and management of aquatic ecosystems. Specimens were collected at Epitá cio Pessoa reservoir in December 2011 and June 2012, presenting densities of 20.96 and 62.89 individuals per square meter, respectively. Anthropic disturbance metrics were calculated considering the presence, type and intensity of disturbance in littoral, riparian and flood zones. The occurrence of C. largillierti was mainly associated to the variables total phosphorus (261.05 ± 342.22 mg/L) and total nitrogen (440.79 ± 103.77 mg/L), near to tributaries. The occurrence of exotic mollusk species is evidence of the need for freshwater ecosystem conservation and management, particularly in reservoirs used for water supply. Keywords: Corbiculidae, anthropic disturbance, environmental quality. Resumo: A introduc¸ão de espécies exó ticas de moluscos resulta em perda de biodiversidade em ecossistemas aquáticos semiáridos neotropicais. Este estudo tem o objetivo de relacionar a presenc¸a e densidade da espécie Corbicula largillierti ao distú rbio humano, fornecendo dados para a conservac¸ão e manejo de ecossistemas aquáticos. Os espécimes foram coletados no reservató rio Epitácio Pessoa em dezembro de 2011 e junho de 2012, com densidades de 20,96 e 62,89 indivíduos por metro quadrado, respectivamente. Métricas de perturbac¸ão antró pica foram calculadas considerando a presenc¸a, tipo e intensidade de perturbac¸ão nas zonas litorânea, ribeirinha e de inundac¸ão. A ocorrência de C. largillerti esteve associada às variáveis fó sforo total (261,05 ± 342,22 mg/L) e nitrogênio total (440,79 ± 103,77 mg/L), em locais pró ximos aos afluentes. A ocorrência de espécies exó ticas de moluscos evidencia a necessidade de conservac¸ão e manejo de ecossistemas de água doce, principalmente em reservató rios utilizados para abastecimento de água. Palavras-chave: Corbiculidae, distúrbio antrópico, qualidade ambiental.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Potential ecological distribution of alien mollusk Corbicula largillierti and its relationship with human disturbance in a semi-arid reservoir

et al. 2016

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“…In addition, existing databases mostly focus on a single taxon and use incomparable trait definitions. While some recent studies did compare traits across taxa, they included only two taxa (e.g., Gossner and Müller , Schirmel and Buchholz ) or defined traits in each taxon differently (e.g., Aubin et al. ).…”

Section: Introductionmentioning

confidence: 99%

Multi‐taxa approach shows consistent shifts in arthropod functional traits along grassland land‐use intensity gradient

Simons

Weisser

Goßner

2016

Ecology

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Intensification of land use reduces biodiversity but may also shift the trait composition of communities. Understanding how land use affects single traits and community trait composition, helps to understand why some species are more affected by land use than others. Trait‐based analyses are common for plants, but rare for arthropods. We collected literature‐based traits for nearly 1000 insect and spider species to test how land‐use intensity (including mowing, fertilization, and grazing) across 124 grasslands in three regions of Germany affects community‐weighted mean traits across taxa and in single taxa. We additionally measured morphometric traits for more than 150 Heteroptera species and tested whether the weighted mean morphometric traits change with increasing land‐use intensity. Community average body size decreased and community average dispersal ability increased from low to high land‐use intensity. Furthermore, the relative abundance of herbivores and of specialists among herbivores decreased and the relative abundance of species using the herb layer increased with increasing land‐use intensity. Community‐weighted means of the morphometric traits in Heteroptera also changed from low to high land‐use intensity toward longer and thinner shapes as well as longer appendices (legs, wings, and antenna). While changes in traits with increasing mowing and fertilization intensity were consistent with the combined land‐use intensity, community average traits did often not change or with opposite direction under increasing grazing intensity. We conclude that high land‐use intensity acts as an environmental filter selecting for on average smaller, more mobile, and less specialized species across taxa. Although trait collection across multiple arthropod taxa is laborious and needs clear trait definitions, it is essential for understanding the functional consequences of biodiversity loss due to land‐use intensification.

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“…Such changes can affect resident animal assemblages by modifying habitats (Schirmel et al ., ), food resources (Graves & Shapiro, ; Wolkovich et al ., ), or biotic interactions (Schweiger et al ., ; Vilà et al ., ). Effects on local fauna can be negative in terms of abundances and diversity (Hanula & Horn, ; Holmquist et al ., ; Schirmel et al ., ; Watling et al ., ), functional diversity (Schirmel & Buchholz, ), and biotic interactions (Schweiger et al ., ; Vilà et al ., ). Reported effects of invasive species are often biased toward negative consequences (Pyšek et al ., ), but positive effects of invasive plants on animals are also known (Schlaepfer et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Impacts of invasive plants on resident animals across ecosystems, taxa, and feeding types: a global assessment

Schirmel

Bundschuh

Entling

et al. 2015

Global Change Biology

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155

105

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As drivers of global change, biological invasions have fundamental ecological consequences. However, it remains unclear how invasive plant effects on resident animals vary across ecosystems, animal classes, and functional groups. We performed a comprehensive meta-analysis covering 198 field and laboratory studies reporting a total of 3624 observations of invasive plant effects on animals. Invasive plants had reducing (56%) or neutral (44%) effects on animal abundance, diversity, fitness, and ecosystem function across different ecosystems, animal classes, and feeding types while we could not find any increasing effect. Most importantly, we found that invasive plants reduced overall animal abundance, diversity and fitness. However, this significant overall effect was contingent on ecosystems, taxa, and feeding types of animals. Decreasing effects of invasive plants were most evident in riparian ecosystems, possibly because frequent disturbance facilitates more intense plant invasions compared to other ecosystem types. In accordance with their immediate reliance on plants for food, invasive plant effects were strongest on herbivores. Regarding taxonomic groups, birds and insects were most strongly affected. In insects, this may be explained by their high frequency of herbivory, while birds demonstrate that invasive plant effects can also cascade up to secondary consumers. Since data on impacts of invasive plants are rather limited for many animal groups in most ecosystems, we argue for overcoming gaps in knowledge and for a more differentiated discussion on effects of invasive plant on native fauna.

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Invasive moss alters patterns in life-history traits and functional diversity of spiders and carabids

Cited by 30 publications

References 55 publications

Potential ecological distribution of alien mollusk Corbicula largillierti and its relationship with human disturbance in a semi-arid reservoir

Potential ecological distribution of alien mollusk Corbicula largillierti and its relationship with human disturbance in a semi-arid reservoir

Multi‐taxa approach shows consistent shifts in arthropod functional traits along grassland land‐use intensity gradient

Impacts of invasive plants on resident animals across ecosystems, taxa, and feeding types: a global assessment

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