Conservation of a groundwater-dependent mire-dwelling dragonfly: implications of multiple threatening processes
| Autor: | Ian R. C. Baird, Shelley Burgin |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences Ecology biology Biodiversity Endangered species Introduced species biology.organism_classification 010603 evolutionary biology 01 natural sciences Petalura gigantea Habitat Animal ecology Insect Science Mire Environmental science Animal Science and Zoology 0105 earth and related environmental sciences Nature and Landscape Conservation Groundwater-dependent ecosystems |
| Zdroj: | Journal of Insect Conservation. 20:165-178 |
| ISSN: | 1572-9753 1366-638X |
| DOI: | 10.1007/s10841-016-9852-3 |
| Popis: | Groundwater-dependent ecosystems and their dependent species are under increasing threat globally. Petalurid dragonflies are one such group. This review highlights processes that threaten the groundwater-dependent mire habitats of Petalura gigantea, a dragonfly with long-lived fossorial larvae. The species is reliant for successful reproduction on areas of emergent seepage, or at least, on a water table that is sufficiently high to cause saturation of the peaty substrate. These microhabitat characteristics are critical for successful oviposition and larval burrow establishment, making the species particularly vulnerable to any lowering of water tables. The effect of any lowering of water tables, due to groundwater abstraction or longwall coal mining, for example, will be compounded by the effects of more intense fire regimes in these mires and by projected climate change. These threatening processes act in conjunction with a range of other anthropogenic threats and are mirrored globally in threats to other groundwater-dependent mire ecosystems and their dependent species, including other petalurid dragonflies. |
| Databáze: | OpenAIRE |
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