Evolutionary Ecology of Odonata: A Complex Life Cycle Perspective

Stoks, Robby; Córdoba‐Aguilar, Alex

doi:10.1146/annurev-ento-120710-100557

Cited by 223 publications

(202 citation statements)

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“…It is worth mentioning that the stressors listed may not only have a considerable impact in a given stage of their life cycle, but the effects can also be transferred to other stages via carry-over effects (e.g. maternal effects from adult to larva, or persistence of impacts between life history stages from larva to adult), except when a decoupling mechanism interferes (for a detailed review see Stoks & Córdoba-Aguilar, 2012).…”

Section: The Effects Of Urban Stressors On Odonatesmentioning

confidence: 99%

Dragonflies and damselflies (Odonata) in urban ecosystems: A review

Villalobos-Jiménez¹,

Dunn²,

Hassall³

2016

Eur. J. Entomol.

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ISSN (online): 1802-8829http://www.eje.cz gate current research on the impacts of urbanisation using odonates as a model group. First, we will present a brief overview on the impacts of urbanisation on terrestrial and freshwater ecosystems, then we conduct a systematic literature review regarding odonates in urban environments and outline the plausible effects on odonates, followed by the use of odonates as bioindicators, the conservation value of urban wetlands for odonates, a summary of evolutionary strategies for species to cope with urban stressors, and fi nally we conclude by identifying research needs. THE EFFECTS OF URBAN STRESSORS ON TERRESTRIAL AND FRESHWATER ECOSYSTEMSThe wide range of impacts associated with urbanisation indicates that it exerts a considerable effect on terrestrial biodiversity. Most studies show that species richness and evenness is reduced in highly urbanised regions, depending on the taxonomic group observed, degree of urbanisation, and spatial scale of analysis (McKinney, 2002(McKinney, , 2008. For example, butterfl ies (Ruszczyk, 1987;Ruszczyk & De Araujo, 1992; Blair & Launer, 1997) and ground arthropods (McIntyre et al., 2001) show this tendency. The general pattern of biodiversity decrease in cities is probably due to the fact that over 80% of land in city cores is covered by buildings and pavements, with the remain- Abstract. The expansion of urban areas is one of the most signifi cant anthropogenic impacts on the natural landscape. Due to their sensitivity to stressors in both aquatic and terrestrial habitats, dragonfl ies and damselfl ies (the Odonata) may provide insights into the effects of urbanisation on biodiversity. However, while knowledge about the impacts of urbanisation on odonates is growing, there has not been a comprehensive review of this body of literature until now. This is the fi rst systematic literature review conducted to evaluate both the quantity and topics of research conducted on odonates in urban ecosystems. From this research, 79 peer-reviewed papers were identifi ed, the vast majority (89.87%) of which related to studies of changing patterns of biodiversity in urban odonate communities. From the papers regarding biodiversity changes, 31 were performed in an urban-rural gradient and 21 of these reported lower diversity towards built up city cores. Twelve of the cases of biodiversity loss were directly related to the concentrations of pollutants in the water. Other studies found higher concentrations of pollutants in odonates from built-up catchments and suggested that odonates such as Aeshna juncea and Platycnemis pennipes may be candidate indicators for particular contaminants. We conclude by identifying current research needs, which include the need for more studies regarding behavioural ecology and life-history traits in response to urbanisation, and a need to investigate the mechanisms behind diversity trends beyond pollution.

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Section: The Effects Of Urban Stressors On Odonatesmentioning

confidence: 99%

Dragonflies and damselflies (Odonata) in urban ecosystems: A review

Villalobos-Jiménez¹,

Dunn²,

Hassall³

2016

Eur. J. Entomol.

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“…Finally, the utility of α-and β-SGDC for conservation of biodiversity at both local and landscape scales was explored with an emphasis on spatial conservation prioritization (Karjalainen 2010). Odonates are semi-aquatic, meaning that they have aquatic egg and larval stages that can live for several years, after which the larvae climb above water, and emerge as flying adults (Corbet 1999, Stoks andCórdoba-Aguilar 2012).…”

Section: Literature Review On Species-genetic Diversity Correlations mentioning

confidence: 99%

Interspecific interactions influence contrasting spatial genetic structures in two closely related damselfly species

et al. 2014

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The similarities in the theories of community ecology and population genetics suggest that species diversity within and between communities and genetic diversity within and between populations are driven by the same four general mechanisms: (1) drift, (2) dispersal, (3) selection, and (4) the formation of new variants (i.e. speciation and mutation). Since, for both species diversity and genetic diversity, the relative significances of each of the first three mechanisms are very much influenced by characteristics of the environment, correlations between species diversity and genetic diversity, i.e. species-genetic diversity correlations (SGDCs), are expected. Considering that practical conservation most often focuses on species diversity (or surrogates thereof), SGDCs could provide information on how conservation and management decisions influence genetic diversities of populations, and thus also their viabilities. Furthermore, teasing apart the drivers of the SGDCs can offer mechanistic explanations for diversity and therefore suggest a process-based approach to conservation. I studied the generalizability of SGDC and the role of environmental characteristics by means of a literary review and empirical studies on natural dragonfly and damselfly communities. I then conducted individual-based simulations to assess how inbreeding depression due to loss of genetic diversity can influence extinction rates in neutral multispecies metacommunities. My results suggest that SGDCs are highly variable in natural systems and that interactions between ecologically similar species can influence their genetic structures. Therefore, the results question the utility of using species diversity or genetic structures of ecologically similar species as surrogates for genetic diversity of species of conservation concern. Furthermore, my results suggest that if intraspecific genetic diversity is not explicitly considered, the extinction rates in multispecies metacommunities might be underestimated.

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“…It should be emphasized that the complex habitats of odonate species must meet these ecological requirements at all stages of their life cycle (Corbet, 1999). Moreover, responses to a stressful environment at any stage may carry over and shape fi tness in subsequent stages and generations (Stoks & Córdoba-Aguilar, 2012).…”

Section: Introductionmentioning

confidence: 99%