Australian Natural Resources Atlas

Natural Resource Topics

Biodiversity Assessment - Carnarvon

Data Gaps

Table: Some major data gaps in each subregion in terms of protecting biodiversity.
Data Gaps Notes
Cape Range (CAR1)
Ecological and life history data

Poor state of knowledge of sea turtle nesting away from locations where monitoring and/or tagging occurs. Many islands and mainland beaches are known to support nesting, but numbers and species are unknown.

(vi) There are few detailed data on ecological requirements and life histories of plant species, and ecologically dominant plant species (eg hummock grasses).

(vii) Troglobitic fauna is not well understood. The fauna is known to be highly significant, yet many species are known from few or single localities.

(xviii) Poor state of knowledge of sea bird nesting on islands of Exmouth Gulf.

(iii) Subregional flora is poorly known, with few intensive studies. Only small areas have been examined in detail by botanists, usually for industrial development

(iv) Quadrat-based floristic data is available from only a few localities.

(i) No environmental geology / regolith mapping at better than 1:250 000.

(ii) No broad-scale soil mapping is available at finer scale than 1:2 000 000 (Bettenay et al. 1967).

(ix) No understanding of impacts of shallow-aquifer disposal of oil-contaminated produced water on Barrow Island.

(viii) No estimate available of impact of recreational access to cave systems has on troglofauna.

(x) No understanding of impacts of gravel extraction on Barrow Island.

(xi) No knowledge of desirability or otherwise of fire and fire management (including suppression) on island ecosystems.

(xii) No quantitative data on the impact of exotic herbivores on aquatic systems, or subterranean systems, especially effects of heavy loads of goat dung in cave inflows

(xiii) No quantitative data on the impact of changes to fire regimes in hummock grasslands, particularly upon vertebrate communities, invertebrate communities, and non-vascular plants.

(xiv) No assessment on the impact of global warming upon coastal and island communities, including increasing sea levels and possible increases in frequency and intensity of cyclonic events

(xv) No quantitative data on the impact of weed colonisation (especially buffel grass) on coastal and island communities, particularly upon recruitment of perennial species, and consequent effects on invertebrate and vertebrate communities.

(v) Quantitative subregional survey of fauna has not been undertaken.

(vi) There are few detailed data on ecological requirements and life histories of virtually all invertebrate species, plants, persisting CWR mammals, uncommon vertebrate

(xvi) Inventory survey has been undertaken for many islands within CAR1 (Exmouth Gulf, Barrow, Lowendal and Montebello groups). However, some islands within the Gulf are still poorly known.

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