How are the various animal species doing?
Land and freshwater-based fauna in the Netherlands saw their numbers grow by slightly over 1 percent between 1990 and 2019. However, there are significant differences per group of species.noot1 Across the board, the majority of land-based species are declining in number, such as butterflies (26 species are declining, 15 are increasing). On average, freshwater-based species are on the right track. For example, 36 species of dragonflies have increased in distribution, while 11 species have declined.
CBS calculates trends in the size of the population and the area of distribution of a large number of plant and animal species found in Dutch nature. To do this, CBS makes use of observations mainly collected by volunteers, but also in part by professional observers. Examining the trends in conjunction makes it possible to form a reasonably complete impression of the state and development of Dutch nature.
Slight increase of land and freshwater-based fauna
The indicator ‘fauna of land and freshwater’ (also called the Dutch Living Planet Index or LPInoot2 shows the average trend for 351 breeding birds, reptiles, amphibians, butterflies, dragonflies, mammals and freshwater fishes living in the Netherlands. This index rose by slightly more than 1 percent in the period 1990–2019. It has been stable over the last 12 years, but each type of nature reserve exhibits differences in developments. For example, animal species typically found in heathland, dunes and on agricultural land have declined on average whereas those found in forests, fresh water and marshes have increased.
| Observation | Trend | Confidence interval (low) | Confidence interval (high) | |
|---|---|---|---|---|
| 1990 | 102 | 100 | 95 − 105 | 95 − 105 |
| 1991 | 98 | 99 | 95 − 103 | 95 − 103 |
| 1992 | 101 | 98 | 95 − 101 | 95 − 101 |
| 1993 | 95 | 98 | 95 − 100 | 95 − 100 |
| 1994 | 92 | 97 | 95 − 100 | 95 − 100 |
| 1995 | 98 | 97 | 95 − 99 | 95 − 99 |
| 1996 | 95 | 97 | 95 − 99 | 95 − 99 |
| 1997 | 98 | 97 | 95 − 99 | 95 − 99 |
| 1998 | 99 | 98 | 95 − 100 | 95 − 100 |
| 1999 | 96 | 98 | 96 − 101 | 96 − 101 |
| 2000 | 101 | 99 | 97 − 101 | 97 − 101 |
| 2001 | 97 | 100 | 98 − 102 | 98 − 102 |
| 2002 | 102 | 101 | 98 − 103 | 98 − 103 |
| 2003 | 104 | 102 | 99 − 104 | 99 − 104 |
| 2004 | 101 | 102 | 100 − 104 | 100 − 104 |
| 2005 | 105 | 103 | 101 − 105 | 101 − 105 |
| 2006 | 104 | 103 | 101 − 105 | 101 − 105 |
| 2007 | 102 | 104 | 102 − 106 | 102 − 106 |
| 2008 | 101 | 104 | 102 − 106 | 102 − 106 |
| 2009 | 108 | 105 | 102 − 106 | 102 − 106 |
| 2010 | 106 | 105 | 103 − 106 | 103 − 106 |
| 2011 | 106 | 105 | 103 − 106 | 103 − 106 |
| 2012 | 100 | 105 | 103 − 106 | 103 − 106 |
| 2013 | 104 | 105 | 103 − 106 | 103 − 106 |
| 2014 | 107 | 104 | 103 − 106 | 103 − 106 |
| 2015 | 104 | 104 | 102 − 105 | 102 − 105 |
| 2016 | 103 | 103 | 102 − 105 | 102 − 105 |
| 2017 | 105 | 103 | 101 − 104 | 101 − 104 |
| 2018 | 102 | 102 | 100 − 104 | 100 − 104 |
| 2019 | 101 | 101 | 99 − 104 | 99 − 104 |
Fewer butterflies, more dragonflies
In addition to differences between nature areas, there are also major differences between groups of species. The groups of species of which the majority are land-based have on average declined over the past thirty years, while groups of species that are mainly freshwater-based have on average thrived during this period. For example, butterfly (land-based) numbers have halved compared to 1992. Butterfly species such as the wood white, brown argus, cranberry blue, cranberry fritillary and common ringlet are experiencing a declining trend. The distribution of dragonfliesnoot3 (freshwater-based) has increased by around 50 percent since 1992, although the trend has been declining in recent years. Typical southern species such as the southern black-tailed skimmer, southern emperor dragonfly, southern aeshnid, scarlet dragonfly and wandering darters are spreading ever more widely.
| Dragonflies- Observation | Dragonflies - Trend | Dragonflies - Confidence interval (low) | Dragonflies - Confidence interval (high) | Butterflies - Observation | Butterflies - Trend | Butterflies - Confidence interval (low) | Butterflies - Confidence interval (high) | |
|---|---|---|---|---|---|---|---|---|
| 1992 | 104 | 105 | 95 − 116 | 95 − 116 | 116 | 100 | 91 − 110 | 91 − 110 |
| 1993 | 100 | 110 | 102 − 118 | 102 − 118 | 89 | 92 | 86 − 99 | 86 − 99 |
| 1994 | 110 | 115 | 108 − 122 | 108 − 122 | 64 | 85 | 80 − 90 | 80 − 90 |
| 1995 | 119 | 120 | 114 − 125 | 114 − 125 | 89 | 80 | 76 − 83 | 76 − 83 |
| 1996 | 127 | 125 | 120 − 130 | 120 − 130 | 79 | 75 | 72 − 78 | 72 − 78 |
| 1997 | 141 | 131 | 127 − 136 | 127 − 136 | 72 | 71 | 69 − 74 | 69 − 74 |
| 1998 | 139 | 137 | 133 − 141 | 133 − 141 | 71 | 68 | 66 − 71 | 66 − 71 |
| 1999 | 139 | 143 | 138 − 147 | 138 − 147 | 52 | 66 | 63 − 68 | 63 − 68 |
| 2000 | 146 | 150 | 146 − 153 | 146 − 153 | 69 | 64 | 61 − 66 | 61 − 66 |
| 2001 | 144 | 156 | 153 − 161 | 153 − 161 | 51 | 62 | 60 − 64 | 60 − 64 |
| 2002 | 160 | 163 | 159 − 166 | 159 − 166 | 67 | 61 | 59 − 63 | 59 − 63 |
| 2003 | 182 | 169 | 166 − 173 | 166 − 173 | 76 | 60 | 58 − 62 | 58 − 62 |
| 2004 | 174 | 175 | 173 − 178 | 173 − 178 | 58 | 59 | 58 − 61 | 58 − 61 |
| 2005 | 175 | 181 | 178 − 183 | 178 − 183 | 63 | 59 | 58 − 61 | 58 − 61 |
| 2006 | 192 | 184 | 181 − 187 | 181 − 187 | 61 | 59 | 58 − 61 | 58 − 61 |
| 2007 | 198 | 187 | 185 − 189 | 185 − 189 | 46 | 59 | 58 − 61 | 58 − 61 |
| 2008 | 194 | 188 | 187 − 191 | 187 − 191 | 45 | 59 | 58 − 60 | 58 − 60 |
| 2009 | 190 | 189 | 187 − 191 | 187 − 191 | 73 | 59 | 58 − 61 | 58 − 61 |
| 2010 | 186 | 189 | 187 − 191 | 187 − 191 | 74 | 59 | 58 − 61 | 58 − 61 |
| 2011 | 178 | 188 | 185 − 189 | 185 − 189 | 65 | 60 | 58 − 61 | 58 − 61 |
| 2012 | 185 | 186 | 183 − 189 | 183 − 189 | 45 | 60 | 59 − 62 | 59 − 62 |
| 2013 | 182 | 185 | 183 − 187 | 183 − 187 | 68 | 60 | 59 − 61 | 59 − 61 |
| 2014 | 177 | 185 | 183 − 187 | 183 − 187 | 69 | 59 | 58 − 60 | 58 − 60 |
| 2015 | 185 | 185 | 183 − 187 | 183 − 187 | 54 | 58 | 56 − 59 | 56 − 59 |
| 2016 | 178 | 184 | 183 − 185 | 183 − 185 | 49 | 56 | 55 − 58 | 55 − 58 |
| 2017 | 179 | 184 | 183 − 185 | 183 − 185 | 66 | 54 | 53 − 55 | 53 − 55 |
| 2018 | 191 | 184 | 183 − 185 | 183 − 185 | 56 | 52 | 51 − 53 | 51 − 53 |
| 2019 | 186 | 185 | 183 − 187 | 183 − 187 | 46 | 50 | 49 − 51 | 49 − 51 |
| 28 | 188 | 185 | 183 − 187 | 183 − 187 | 45 | 47 | 46 − 48 | 46 − 48 |
Sources
Environmental Data Compendium – Living Planet Index
The questions
- How are figures calculated by CBS?
- How many dwellings in the Netherlands?
- How fast is the Dutch population growing?
- How tall are Dutch people?
- How many farm animals are there in the Netherlands?
- Which jobs often cause a poor work-life balance?
- How many diamond wedding couples are there?
- How much energy is from renewable sources?
- How many people fall victim to domestic violence?
- How many people use the Internet of Things?
- What are the major religions?
- What are the most popular majors?
- What do people die of on an average day?
- How much water do we consume?
- What do we buy online?
- How are the various animal species doing?
- How many under-23s receive youth assistance?
- Which flower bulbs are most common?
- How many companies in the Netherlands?
- Where do Caribbean Dutch children live?
- How do we use our land?
- How many electric cars are driving around?
- Which jobs have the highest levels of mental fatigue?
- How much nitrogen is emitted at livestock farms?
- How many workers belong to a trade union?
- How much have food prices gone up?
- Where were people in the Caribbean Netherlands originally born?
- How many families are at risk of poverty?
- How sustainable is our behaviour?
- What do we import from China?
- How many girls become teenage mothers?
- Has our purchasing power gone up or down?
- How many adults smoke?
- How many millionaires in the Netherlands?
- How many tourists stay overnight in the Netherlands?
- How does CBS handle your privacy?
Noten
Species group
A species group is a group of species belonging to the same class (e.g. birds, mammals, butterflies).
Living Planet Index (LPI)
Plant species, but also animal species found in saltwater (marine fish, fauna of the seabed) are not yet included in this indicator. Consequently, the LPI of the Netherlands actually relates to fauna found on land and in freshwater.
Dragonflies
There are currently no (reliable) trends available with respect to the number of dragonflies: trends in distribution are seen as the best way to describe population development when no trends in numbers are available.