Figure 1.
Distribution of wetlands, fish occurrences, protected areas, land use and invasive species.
The Wet Tropics study area in north Queensland, Australia, showing the spatial distribution of: a) wetland types; b) stream reaches and sites sampled for fish; c) IUCN protected area categories; d) land uses and e) aquatic invasive species.
Figure 2.
Statistics for stream reaches, sub-catchments and wetlands in the Wet Tropics.
The total: a) length (grey bars) and area (black bars) of each Strahler stream order and adjacent sub-catchment; b) area of each wetland type; c) total area of the four wetland types in adjacent sub-catchments for each Strahler stream order; d) length of each Strahler stream order, with IUCN categories indicated; and e) area of each wetland type represented within IUCN categories II, III and VI.
Table 1.
IUCN and State of Queensland protected areas.
Figure 3.
Representation of Strahler stream order sub-catchments, wetlands and fish in IUCN category II protected areas.
The percent representation of: a) sub-catchment area adjacent to streams in Strahler stream orders 1–6; b) wetland types; and c) each fish species distribution occurring completely within an IUCN category II protected area. * = species that are endemic to the Wet Tropics. The dashed lines indicate 20% representation.
Figure 4.
Human-induced disturbances: land use and invasive species.
The percent of sub-catchment area adjacent to each Strahler streamorder 1–6 that is: a) covered with each of the seven land uses or b) covered with an invasive macrophyte: olive hymenachne (Hymenachne amplexicaulis), pond apple (Annona glabra) and/or salvinia (Salvinia molesta).
Figure 5.
Multiple human-induced disturbances.
The percent of: a) sub-catchments adjacent to Strahler stream orders 1-6; b) sub-catchments supporting each of the four wetland types; and c) sub-catchments adjacent to each Strahler stream order 1–6 that support at least 10 fish species, that have 0, 1, 2, 3 or 4 human-induced disturbances present.
Figure 6.
Multiple human-induced disturbances upstream of protected areas.
The distribution and prevalence of human-induced disturbances upstream of protected areas by: a) the number of stream reaches with 0, 1, 2, 3 or 4 human-induced disturbances; b) the total stream length (grey bars) and sub-catchment area (black bars) with one or more human-induced disturbance; and c) the number of sub-catchments with one or more human-induced disturbance.
Table 2.
Definitions of wetland types and conservation status.
Table 3.
Environmental variables and human-induced disturbances and respective attributed freshwater feature.