Biological invasions and ecosystem functioning: time to merge

Sousa, Ronaldo; Morais, Pedro; Dias, Ester; Antunes, Carlos

doi:10.1007/s10530-011-9947-4

Cited by 55 publications

(30 citation statements)

References 31 publications

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“…Several previous studies attempted to correlate invasion with the composition of the invaded community and some of these studies experimentally addressed the effect of invasion on ecosystem functioning 19 . In our work, the degree of evenness was negatively correlated with the susceptibility of the community to invasion in the absence of an external stress, as previously shown in grassland communities 4,20,21 .…”

Section: Discussionmentioning

confidence: 99%

Environmental conditions and community evenness determine the outcome of biological invasion

et al. 2013

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Biological invasion is widely studied, however, conclusions on the outcome of this process mainly originate from observations in systems that leave a large number of experimental variables uncontrolled. Here using a fully controlled system consisting of assembled bacterial communities, we evaluate the degree of invasion and the effect on the community functionality in relation to the initial community evenness under specific environmental stressors. We show that evenness influences the level of invasion and that the introduced species can promote functionality under stress. The evenness-invasibility relationship is negative in the absence and neutral in the presence of stress. Under these conditions, the introduced species is able to maintain the functionality of uneven communities. These results indicate that communities, initially having the same genetic background, in the presence of the same invader, react in a different way with respect to invasibility and functionality depending on specific environmental conditions and community evenness.

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Section: Discussionmentioning

confidence: 99%

Environmental conditions and community evenness determine the outcome of biological invasion

et al. 2013

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“…2a, b). In terms of biodiversity and ecosystem functioning theory will be important not only address possible changes in ecosystems due to loss of species but also include studies where the number of species increased due to introductions and how this translate in possible changes in ecosystem functioning (Sousa et al, 2011b;Strayer, 2012). A more comprehensive understanding in aquatic ecosystem processes and functions resulting from this biodiversity loss (via native bivalve extinctions) or gain (via invasive bivalve introductions) is just in the beginning, but promising results are becoming available and this taxonomic group is highly suitable for field and laboratory manipulations and so serving as an interesting model to assess these functional changes.…”

Section: Ecology and Conservationmentioning

confidence: 99%

Biology and conservation of freshwater bivalves: past, present and future perspectives

et al. 2014

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Freshwater bivalves have been highly threatened by human activities, and recently their global decline has been causing conservational and social concern. In this paper, we review the most important research events in freshwater bivalve biology calling attention to the main scientific achievements. A great bias exists in the research effort, with much more information available for bivalve species belonging to the Unionida in comparison to other groups. The same is true for the origin of these studies, since the publishing pattern does not always correspond to the hotspots of biodiversity but is concentrated in the northern hemisphere mainly in North America, Europe and Russia, with regions such as Africa and Southeast Asia being quite understudied. We also summarize information about past, present and future perspectives concerning the most important research topics that include taxonomy, systematics, anatomy, physiology, ecology and conservation of freshwater bivalves. Finally, we introduce the articles published in this Hydrobiologia special issue related with the International Meeting on Biology and Conservation of Freshwater Bivalves held in 2012 in Bragança, Portugal.

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“…In recent decades, invasive alien species have been among the most serious threats to the conservation of natural biodiversity; consequently, limitation of their diffusion is a priority for the defence of natural ecosystems (Simberloff and Stiling, 1996;Sousa et al, 2011) as also reported by the EU Regulation on Invasive Alien Species 1143/2014. Several studies have demonstrated the effect of predatory invasive species on trophic conditions (Carpenter et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

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Maccarrone¹,

Filiciotto²,

Buffa³

et al. 2016

Turk. J. Fish. Aquat. Sci.

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In a WWF reserve of south-western Sicily (Italy), a population of Procambarus clarkii has colonized the important protected areas of Preola Lake and the Gorghi Tondi Nature Reserve.Surveys were conducted in four lakes to investigate the structure and dynamics of the population inhabiting these lakes, and the life history patterns of this crayfish in this characteristic habitat are presented. Significant differences between sex ratio and cephalothorax mean measurements) were not evidenced. The population's parameters were estimated using the Von Bertalanffy growth function and the Bhattacharya method. Similarly to previous work, this study it was found that this species has a lower growth rate and longevity in comparison with other populations living in the Mediterranean region (approximately 4 years old). The spatial analysis evidences a strong heterogeneity and large movement range of the specimens during the study period. The results indicate the high ecological plasticity of Procambarus clarkii, suggesting the importance of monitoring this bio-invader to plan appropriate actions for the control of this population in protected areas where it occurs to preserve the local biodiversity.

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Biological invasions and ecosystem functioning: time to merge

Cited by 55 publications

References 31 publications

Environmental conditions and community evenness determine the outcome of biological invasion

Environmental conditions and community evenness determine the outcome of biological invasion

Biology and conservation of freshwater bivalves: past, present and future perspectives

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