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Section sizes Section size for Biodiversity loss (40 sections) Section name Byte count Section total (Top) 19,023 19,023 Global estimates across all species 8,320 8,320 Methods to quantify loss 4,530 4,530 Observations by type of life 36 21,911 Wildlife in general 4,230 4,230 Terrestrial invertebrates 34 3,278 Insects 138 138 Earthworms 3,106 3,106 Amphibians 78 78 Wild mammals 82 82 Birds 1,934 1,934 Plants 74 5,612 Trees 5,455 5,455 Flowering plants 83 83 Freshwater species 1,890 1,890 Marine species 4,771 4,771 Causes 3,837 41,172 Habitat destruction 813 3,968 Urban growth and habitat fragmentation 3,155 3,155 Land use intensification 4,307 4,307 Nutrient pollution and other forms of pollution 88 11,077 Air pollution 3,575 3,575 Noise pollution 4,476 4,476 Pollution from fossil fuel extraction 2,938 2,938 Overexploitation 392 9,369 Overfishing 4,621 4,621 Human overpopulation and overconsumption 4,356 4,356 Invasive species 4,424 4,424 Climate change 4,100 4,190 Extinction risks 90 90 Impacts 15 9,533 On ecosystems 2,796 2,796 On food and agriculture 2,810 2,810 On health and medicines 3,912 3,912 Proposed solutions 5,041 18,305 Convention on Biological Diversity 9,361 9,361 Other international and national action 3,903 3,903 See also 272 272 References 30 30 External links 843 843 Total 123,939 123,939

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This article was the subject of a Wiki Education Foundation-supported course assignment, between 10 January 2022 and 23 April 2022. Further details are available on the course page. Student editor(s): Betonicifolia, Raizach ( article contribs).

I've removed this textblock that had been added by a student because I felt it was digressing and overly detailed. It was in this section, which I think needs further work an attention: Biodiversity loss#Effect on plants. Pinging User:InformationToKnowledge EMsmile ( talk) 13:15, 9 October 2023 (UTC) reply

+++++++++ A 2007 study looked into the relationship between plant diversity and phenology, experimentally determining that plant diversity influenced the broader community flowering time. ^[1] Flowering time is an important piece in the pollination puzzle as it impacts the food supply for pollinators. ^[2] This in turn can play a major role in agriculture ^[2] and global food security. ^[3]

EMsmile ( talk) 13:15, 9 October 2023 (UTC) reply

Just a FYI for people who have this article on their watchlist. Please see a discussion about potentially merging effects of climate change on plant biodiversity (or the future Decline in plant biodiversity article) to here on this talk page: /info/en/?search=Talk:Effects_of_climate_change_on_ecosystems#Earlier_discussion_about_merging_to_biodiversity_loss EMsmile ( talk) 13:16, 9 October 2023 (UTC) reply

I've removed this list as it's not overly helpful for the readers. It also overlaps with the list that is provided just above in the same section. Also, the source provided doesn't show this list. Also, "threats to conservation" is not necessarily the same as "causes for biodiversity loss".

++++++++++

According to the IUCN the main direct threats to conservation fall in eleven categories: ^[1]

1. Residential & commercial development: housing & urban areas, commercial & industrial areas, tourism & recreational areas
2. Farming activities: agriculture, aquaculture
3. Energy production and mining: renewable energy production, including hydroelectric dams, non-renewable energy production (oil and gas drilling), mining (fuel and minerals)
4. Transportation & service corridors: service corridors (for example electrical & phone wires, oil & gas pipelines), transport corridors (roads, railroads, shipping lanes, and flight paths), collisions with the vehicles using the corridors, associated accidents and catastrophes (oil spills, electrocution, fire)
5. Biological resource usages: hunting, persecution (predator control and pest control, superstitions), plant destruction or removal (human consumption, free-range livestock foraging), logging or wood harvesting, fishing
6. Human intrusions & activities that alter, destroy, disturb habitats and species from exhibiting natural behaviors: recreational activities, war, civil unrest, & military exercises, illegal activities (smuggling, vandalism), newly built housing
7. Natural system modifications: fire suppression or creation, water management (for example dam construction, groundwater pumping), other modifications (for example land reclamation), removing/reducing human maintenance (for example lack of indigenous management of key ecosystems, ceasing supplemental feeding of condors)
8. Invasive & problematic species, pathogens & genes: invasive species, problematic native species, introduced genetic material (for example pesticide-resistant crops, genetically modified insects for biocontrol), pathogens & microbes
9. Pollution: sewage, military & industrial effluents, forestry and agricultural effluents, garbage & solid waste, air-borne pollutants, excess energy (for example noise pollution and heat pollution)
10. Catastrophic geological events ( natural hazards): earthquakes, tsunamis, avalanches, landslides, & volcanic eruptions and gas emissions
11. Effects of climate change: ecosystem encroachment (for example inundation of shoreline ecosystems & drowning of coral reefs from sea level rise), changes in geochemical regimes (for example ocean acidification), changes in temperature regimes (for example heat waves, marine heatwaves), changes in precipitation & hydrological regimes, severe weather events. EMsmile ( talk) 15:16, 1 February 2024 (UTC) reply

EMsmile ( talk) 15:16, 1 February 2024 (UTC) reply

I've now added links and excerpts to the articles on bird, flowering plant, decline in wild mammal populations etc. I am a bit worried that eventually, this will bloat the article up too much and mean too many excerpts. But for now I do think it's important to point readers to the relevant other articles. This was based on suggestions by User:InformationToKnowledge, when we discussed the articles effect of climate change on plant biodiversity and effects of climate change on ecosystems. What are your thoughts about it now, I2K - does it work the way I've done it?

I wonder about one thing: the related decline articles, i.e. Decline in amphibian populations, Decline in wild mammal populations, Decline in insect populations , are not specifically about decline of diversity but could just be about decline in total numbers. E.g. if you split a very large wildlife area into two, and flatten the one half but leave the other half intact, then the total number of wildlife was halved but the biodiversity (number of species) might have stayed the same.

Should we therefore explain somewhere in this article how a decline in populations usually (but not always?) also means a decline in biodiversity? EMsmile ( talk) 10:34, 5 February 2024 (UTC) reply

I think this sentence ought to be simplified, perhaps broken into two. It is using quite a bit of jargon and not very clear for our target group. I mark in bold what I find unclear: As of 2022 at least 64 million square kilometers (24.7 million square miles)—44% of terrestrial area—require conservation attention (ranging from protected areas to land-use policies) in order to secure important biodiversity areas, ecologically intact areas, and optimal locations for representation of species ranges and ecoregions.. I actually question if this sentence adds much value here or might be better off in the article on nature conservation, or a similar one. Pinging USer:RCraig09 as you had added this content. EMsmile ( talk) 12:32, 6 February 2024 (UTC) reply

I've simplified the language, which is definitely appropriate in its /* Land use intensification */ section. The content may also be appropriate content in other articles in the See also hatnote in that section. — RCraig09 ( talk) 17:59, 6 February 2024 (UTC) reply

Thanks, that sentence is a lot easier to understand now. EMsmile ( talk) 21:30, 6 February 2024 (UTC) reply

This article was the subject of a Wiki Education Foundation-supported course assignment, between 8 January 2024 and 20 April 2024. Further details are available on the course page. Student editor(s): Natura Texan, C-ferns1202, IrishGordy, Noodellle, Capybara08, Felis Catuss ( article contribs).

— Assignment last updated by Warmedforbs ( talk) 01:24, 18 April 2024 (UTC) reply