Identification of dragonflies (Odonata) as indicators of general species richness in boreal forest lakes

  title={Identification of dragonflies (Odonata) as indicators of general species richness in boreal forest lakes},
  author={G{\"o}ran Sahl{\'e}n and Katarina Ekestubbe},
  journal={Biodiversity \& Conservation},
We argue the need to select indicator species on empirical data to avoid influence of personal opinions. To test an empirical selection process based on a nested subset matrix, we sampled partivoltine dragonfly larvae from 74 small lakes in central Sweden. A nestedness matrix was set up using the 'nestedness temperature calculator' program, selecting 11 species as potential indicators of species richness. These were tested against a known indicator species for water quality (the pool frog) and… 

Testing Dragonflies as Species Richness Indicators in a Fragmented Subtropical Atlantic Forest Environment

It is argued that Odonata can already be incorporated in ongoing assessment programs in the Neotropics, which would also increase the ecological knowledge of the group and allow extrapolation to other taxa.

Dragonfly Assemblages in Arid Tropical Environments: A Case Study from Western Namibia

It is proposed that dragonflies will have a high indicator potential for threatened freshwater wetlands in such areas and may also serve as an indication of the sustainable use of water resources including evaluating measures to rehabilitate environments.

Diversity and distribution of Odonata (Insecta) larvae along an altitudinal gradient in Coalcomán mountains, Michoacán, Mexico.

The high turnover rate reflects a differential distribution of the species along the altitudinal gradient, supporting the hypothesis of Mexico as a betadiverse country and previous proposals of the CM as a species-rich area for conservation.

Global diversity of dragonflies (Odonata) in freshwater

Diversity is discussed, the biogeography of dragonflies in the different biogeographical regions is summarised and the total number of species and genera per family perBiogeographical region is given.

Shifts in dragonfly community structure across aquatic ecotones

The Odonata Index of Wetland Integrity (OIWI), which uses sensitivities of adult odonates to habitat disturbances to evaluate wetland conditions, showed that species composition at ecotones uniquely represents the ecological integrity of the entire wetland system.

Patterns in the diversity of dragonflies (Odonata) in cities across Central Europe

The aim of this study is to identify the factors that determine species richness of Odonata in 22 Central European cities and along an urban-rural gradient within six of them and make recommendations for increasing the abundance and number of species of dragonflies in cities.

ESA KORKEAMÄKI: Local extinction risk and community structure of Odonata in Fennoscandia

A key need in conservation biology is to identify the ecological traits of a species that make it vulnerable. This thesis focuses on population traits and extinction risk of dragonflies and

Habitat characteristics and odonate diversity in mountain ponds of central Italy

The intensive use of ponds for livestock watering results in damage to the peripheral vegetation, which tends to cause high turbidity and lower macrophyte coverage of the pond water, the inevitable outcome in these situations is a reduction of the odonate diversity.

Dragonfly (Odonata) communities at three lotic sites with different hydrological characteristics

It is concluded that streams with a highly modified hydrology may represent “ecological traps” for specialized species and that dragonfly surveys solely based on the observation of adults can be misleading.



Dragonflies (Odonata) as indicators of biotope quality in the Kruger National Park, South Africa

The suitability of adult male Odonata as indicators of biotope quality along the Sabie River in the Kruger National Park is assessed and its consequences for management are discussed.


Abstract A survey of 32 lakes for dragonfly larvae, aquatic plants and forestry regime in the surrounding boreal forests was performed. The highest diversity was found in undisturbed forests. Lakes

Vegetation and dragonfly fauna — characteristics and examples of biocenological field studies

A step by step procedure for biocenological studies on dragnoflies is proposed and it is shown that the two endangered species, Orthetrum coerulescens and Ceriagrion tenellum, strongly prefer particular plant communities.

Biodiversity inventories, indicator taxa and effects of habitat modification in tropical forest

A gradient from near-primary, through old-growth secondary and plantation forests to complete clearance, for eight animal groups in the Mbalmayo Forest Reserve, south-central Cameroon is examined, indicating the huge scale of the biological effort required to provide inventories of tropical diversity, and to measure the impacts of tropical forest modification and clearance.

Biological Inventory Using Target Taxa: A Case Study of the Butterflies of Madagascar

To assess this approach to biological inventory, a species—rich genus and subgenus of endemic butterflies from the island of Madagascar were chosen as target taxa and were evaluated for information richness in comparison to the entire butterflies of Madagascar.


Abstract The arthropod and annelid fauna of a series of small, acidic pools in a domed, ombrotrophic bog on the Avalon Peninsula, Newfoundland, was studied over the ice-free season of 1986. Pools

Spider biodiversity potential of an ungrazed and a grazed inland salt meadow in the National Park 'Neusiedler See-Seewinkel' (Austria): implications for management (Arachnida: Araneae)

To assess the biodiversity potential of an ungrazed and a grazed inland salt meadow in the Seewinkel (Eastern Austria), spider assemblages were recorded by pitfall trapping for 1 year. Both species

Terrestrial Arthropod Assemblages: Their Use in Conservation Planning

: Arthropods, the most diverse component of terrestrial ecosystems, occupy a tremendous variety of functional niches and microhabitats across a wide array of spatial and temporal scales. We propose

Nested biotas and biological conservation: metrics, mechanisms, and meaning of nestedness