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Benthic protection areas (2016 report)
Ministry for the EnvironmentNew Zealand’s four million km2 marine environment is diverse, with a range of coastal habitats and offshore seabed environments. There are also many marine species unique to New Zealand. Marine protected areas conserve or manage some of these unique habitats and species, while a range of other tools also provide marine protection. We report on the area...Created 2 February 2020 • Updated 3 March 2025 -
Freshwater pests: Margaret River Marron
Ministry for the Environment"Freshwater plant and animal pests can have significant negative impacts on ecosystem health by reducing indigenous biodiversity through predation and competition, and destabilising aquatic habitats. Freshwater plant pests can cause economic losses through blocking water intakes for hydroelectricity generation, impeded drainage or irrigation. In addition,...Created 2 February 2020 • Updated 3 March 2025 -
Type2 Marine Protected Areas
Ministry for the EnvironmentThe location and extent of Type 2 marine protected areas in the territorial sea.Created 2 February 2020 • Updated 3 March 2025 -
NZ Peat Mines 1990-2015
Ministry for the EnvironmentMaps horticultural peat mining areas from 1990 to 2015, peat type and quantity, and post-mining activities.Created 2 February 2020 • Updated 3 March 2025 -
Mortality of indigenous tree sp Halls tōtara 2002–2014
Ministry for the Environment"The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...Created 2 February 2020 • Updated 3 March 2025 -
Water clarity, 1989–2013
Ministry for the Environment"Water clarity is a measure of underwater visibility in rivers and streams and can vary due to differences in land use, climate, elevation, and geology. Water clarity can be reduced by the presence of fine particles like silt, mud or organic material in the water. This affects the habitat and feeding of aquatic life like fish and aquatic birds. Water...Created 2 February 2020 • Updated 3 March 2025 -
NZ Coastal Hydrosystems
Ministry for the EnvironmentCoastal hydrosystems describe coastal features that span a gradient from near coast freshwater lakes/wetlands (lacustrine/palustrine environments) to marine. The term 'coastal hydrosystem' avoids the common error of referring to all such features as estuaries, mislabelling the numerous types that are non-estuarine and have different behavioural...Created 2 February 2020 • Updated 3 March 2025 -
Mortality of indigenous tree sp kāmahi 2002–2014
Ministry for the Environment"The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...Created 2 February 2020 • Updated 3 March 2025 -
High class land for food production South Island 2012
Ministry for the Environment"This data identified areas in the North Island that have been classified as being the most productive for growing food. It supports most crops across New Zealand. Expanding lifestyle blocks and urban areas reduce the availability of high-class land for commercial crop growing, and this land is unlikely to be returned to primary production. This affects...Created 2 February 2020 • Updated 3 March 2025 -
Mortality of indigenous tree sp hūpiro 2002–2014
Ministry for the Environment"The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...Created 2 February 2020 • Updated 3 March 2025 -
Distribution of douglas fir 2002–2014
Ministry for the Environment"The pressure from animal and plant pests is one of the biggest threats to biodiversity in the land environment. Pest predators (such as stoats and possums) eat eggs, birds, lizards, insects, and snails. Other animal pests (such as deer and goats) damage and kill trees and other plants and can compete with indigenous animals for the plants’ fruit and...Created 2 February 2020 • Updated 3 March 2025 -
Predicted streambed sedimentation, 1990–2011
Ministry for the Environment"Fine sediment is the collective term for inorganic particles deposited on the streambed less than 2mm in size. Urban development and agriculture and forestry around waterways can increase the amount of sediment entering river systems. Sedimentation can clog space between pebbles that are used by aquatic insects and fish, alter food sources, and remove...Created 2 February 2020 • Updated 3 March 2025 -
Distribution of stoats 2002–2014
Ministry for the Environment"The pressure from animal and plant pests is one of the biggest threats to biodiversity in the land environment. Pest predators (such as stoats and possums) eat eggs, birds, lizards, insects, and snails. Other animal pests (such as deer and goats) damage and kill trees and other plants and can compete with indigenous animals for the plants’ fruit and...Created 2 February 2020 • Updated 3 March 2025 -
Observed streambed sedimentation, 1990–2011
Ministry for the Environment"Fine sediment is the collective term for inorganic particles deposited on the streambed less than 2mm in size. Urban development and agriculture and forestry around waterways can increase the amount of sediment entering river systems. Sedimentation can clog space between pebbles that are used by aquatic insects and fish, alter food sources, and remove...Created 2 February 2020 • Updated 3 March 2025 -
Distribution of rats 2002–2014
Ministry for the Environment"The pressure from animal and plant pests is one of the biggest threats to biodiversity in the land environment. Pest predators (such as stoats and possums) eat eggs, birds, lizards, insects, and snails. Other animal pests (such as deer and goats) damage and kill trees and other plants and can compete with indigenous animals for the plants’ fruit and...Created 2 February 2020 • Updated 3 March 2025 -
High class land for food production North Island 2012
Ministry for the Environment"This data identified areas in the South Island that have been classified as being the most productive for growing food. It supports most crops across New Zealand. Expanding lifestyle blocks and urban areas reduce the availability of high-class land for commercial crop growing, and this land is unlikely to be returned to primary production. This affects...Created 2 February 2020 • Updated 3 March 2025 -
Dissolved Reactive phosphorus, 2009–2013
Ministry for the Environment"Phosphorus is an essential nutrient for plant and animal life. Phosphorus can vary due to differences in land use, climate, elevation, and geology. Total phosphorus (TP) includes all concentrations in a sample, whether dissolved, in solid form or bound to sediment in the river. Dissolved reactive phosphorus (DRP) is the portion which is dissolved and can...Created 2 February 2020 • Updated 3 March 2025 -
Lightning_GroundStrikes_by_Region
Ministry for the EnvironmentLightning is the discharge of electricity from thunderstorms. Ground strikes can cause significant damage to property and infrastructure, and injure or kill people and livestock. Lightning is often associated with other severe weather events, such as strong wind gusts. Thunderstorms may increase in frequency and intensity with climate change. This dataset...Created 2 February 2020 • Updated 3 March 2025 -
Distribution of possums 2002–2014
Ministry for the Environment"The pressure from animal and plant pests is one of the biggest threats to biodiversity in the land environment. Pest predators (such as stoats and possums) eat eggs, birds, lizards, insects, and snails. Other animal pests (such as deer and goats) damage and kill trees and other plants and can compete with indigenous animals for the plants’ fruit and...Created 2 February 2020 • Updated 3 March 2025 -
River Environment Classification Otago (2010) (DEPRECATED)
Ministry for the EnvironmentThe New Zealand River Environment Classification (REC) organises information about the physical characteristics of New Zealand's rivers. Individual river sections are mapped according to physical factors such as climate, source of flow for the river water, topography, and geology, and catchment land cover eg, forest, pasture or urban. Sections of river...Created 2 July 2020 • Updated 3 March 2025