The Australian monsoon tropics as a barrier for exchange of dragonflies (Insecta: Odonata) between New Guinea and Australia

Kalkman, Vincent J.; Orr, Albert G.

doi:10.1007/s10750-012-1086-0

Cited by 11 publications

(6 citation statements)

References 32 publications

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“…As detailed in the following, our extensive sampling allows reconfiguration of the superfamily into three families, of which Isostictidae includes less than 3% of species and Platycnemididae 24%. The Old World ‘protoneurids’ (Disparoneuridae in Kalkman & Orr, ) are not closely related to the true New World Protoneuridae (Pessacq, ), being either the sister group of Platycnemididae (Bybee et al , ; van Tol et al , ; Dumont et al , ) or falling within that family (Rehn, ; Carle et al , ). In BI/ML 16S/28S + 16S/28S + 16S + COI, Platycnemididae forms the sister group of remaining Coenagrionoidea (excluding Isostictidae) and Disparoneuridae is the sister group of its subfamily Platycnemidinae.…”

Section: Discussionmentioning

confidence: 99%

Redefining the damselfly families: a comprehensive molecular phylogeny of Zygoptera (Odonata)

Dijkstra

Kalkman

Dow

et al. 2013

Systematic Entomology

204

207

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Abstract. An extensive molecular phylogenetic reconstruction of the suborder Zygoptera of the Odonata is presented, based on mitochondrial (16S, COI) and nuclear (28S) data of 59% of the 310 genera recognized and all (suspected) families except the monotypic Hemiphlebiidae. A partial reclassification is proposed, incorporating morphological characters. Many traditional families are recovered as monophyletic,

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Section: Discussionmentioning

confidence: 99%

Redefining the damselfly families: a comprehensive molecular phylogeny of Zygoptera (Odonata)

Dijkstra

Kalkman

Dow

et al. 2013

Systematic Entomology

204

207

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“…Australia’s low relief offers little capacity for altitudinal movement, meaning most species must undergo latitudinal shifts to stay within their current environmental envelopes. All species determined to be vulnerable or highly vulnerable are endemic to Australia, and given Australia’s history of isolation from neighbouring countries such as Papua New Guinea [110] , it is unlikely species would be able to reach suitable habitats outside Australia (but see [111] ). Our modelling indicated that suitable odonate habitats retreated to higher elevations in the Wet Tropics, where changes in precipitation and cloud cover that threaten rainforest vertebrates could also affect these invertebrates [112] .…”

Section: Discussionmentioning

confidence: 99%

Continental-Scale Assessment of Risk to the Australian Odonata from Climate Change

et al. 2014

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Climate change is expected to have substantial impacts on the composition of freshwater communities, and many species are threatened by the loss of climatically suitable habitat. In this study we identify Australian Odonata (dragonflies and damselflies) vulnerable to the effects of climate change on the basis of exposure, sensitivity and pressure to disperse in the future. We used an ensemble of species distribution models to predict the distribution of 270 (85%) species of Australian Odonata, continent-wide at the subcatchment scale, and for both current and future climates using two emissions scenarios each for 2055 and 2085. Exposure was scored according to the departure of temperature, precipitation and hydrology from current conditions. Sensitivity accounted for change in the area and suitability of projected climatic habitat, and pressure to disperse combined measurements of average habitat shifts and the loss experienced with lower dispersal rates. Streams and rivers important to future conservation efforts were identified based on the sensitivity-weighted sum of habitat suitability for the most vulnerable species. The overall extent of suitable habitat declined for 56–69% of the species modelled by 2085 depending on emissions scenario. The proportion of species at risk across all components (exposure, sensitivity, pressure to disperse) varied between 7 and 17% from 2055 to 2085 and a further 3–17% of species were also projected to be at high risk due to declines that did not require range shifts. If dispersal to Tasmania was limited, many south-eastern species are at significantly increased risk. Conservation efforts will need to focus on creating and preserving freshwater refugia as part of a broader conservation strategy that improves connectivity and promotes adaptive range shifts. The significant predicted shifts in suitable habitat could potentially exceed the dispersal capacity of Odonata and highlights the challenge faced by other freshwater species.

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“…There were insufficient data available to model 37 species, and we also did not consider any species from countries outside Australia. We believe the likelihood of many species colonizing Australia under changing climates is low because the monsoon system appears to inhibit movement across the Coral Sea, evident in the low numbers of species shared between Australia and Papua New Guinea (Kalkman & Orr, ).…”

Section: Methodsmentioning

confidence: 99%

Testing for taxonomic bias in the future diversity of Australian Odonata

Буш

Nipperess

Theischinger

et al. 2014

Diversity and Distributions

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Aim Invertebrates are often overlooked in assessments of climate change impacts. Odonata (dragonflies and damselflies) are a significant component of freshwater macroinvertebrate diversity and are likely to be highly responsive to a changing climate. We investigate whether climate change could lead to significant alteration of continental patterns of diversity and whether vulnerable species are taxonomically clustered. Location Australia. Methods Habitat suitability of 270 odonate species was modelled, and a simplified phylogeny was developed based on taxonomic relationships and expert opinion. These maps were then combined to compare species richness, endemism, taxonomic diversity (TD) and taxonomic endemism (TE) under climate change scenarios, and estimate turnover in species composition. Based on the concentration of vulnerable species in regions associated with Gondwanan relicts, we tested the possibility that a focus on species loss would underestimate loss of evolutionary diversity. Results Species richness of Australian Odonata is concentrated in the Wet Tropics, central‐north Australia and south‐east Queensland. Several additional regions support endemic assemblages, including the Victorian alpine region, the Pilbara and far south‐western Australia. Major shifts in composition are expected across most of the east coast in response to climate change, and Tasmania has the potential to become a major refuge for mainland species. For many regions, the loss of TD is greater than expected based on the changes in species richness, and the loss of suitable habitat was unevenly distributed among families. However, the potential loss of evolutionary diversity among vulnerable species was not significantly different from random. Main conclusions The major shifts in the distribution of Australian odonate diversity predicted to occur under climate change imply major challenges for conservation of freshwater biodiversity overall. Although major evolutionary losses may be avoided, climate change is still a serious threat to Australia's Odonata and poses an even greater threat to Australian freshwater biodiversity as a whole.

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The Australian monsoon tropics as a barrier for exchange of dragonflies (Insecta: Odonata) between New Guinea and Australia

Cited by 11 publications

References 32 publications

Redefining the damselfly families: a comprehensive molecular phylogeny of Zygoptera (Odonata)

Redefining the damselfly families: a comprehensive molecular phylogeny of Zygoptera (Odonata)

Continental-Scale Assessment of Risk to the Australian Odonata from Climate Change

Testing for taxonomic bias in the future diversity of Australian Odonata

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