Biodiversity Loss new: Difference between revisions
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'''Biodiversity''' refers to the variation of living organisms across ecosystems, populations, or geographic scales. The term can be measured using a variety of metrics including species richness/diversity, genetic diversity within or between species, and population demographics. '''Species richness''' refers to the total number of different species present within a specific region. Species diversity encompasses both the number of species (richness) and the relative abundance of each species within the population, providing a more comprehensive measure of biodiversity within that region. '''Genetic diversity''' refers to the variety of genes within a population or between populations of the same species. This metric can be used to compare the genetic variability within a single species across different populations or to contrast the gene pools of different species, offering insights into evolutionary processes and the overall health of ecosystems. '''Population demographics''' refer to the variation in physical or demographic traits such as age, size, sex, reproductive status, etc, within or between biological populations. | '''Biodiversity''' refers to the variation of living organisms across ecosystems, populations, or geographic scales. The term can be measured using a variety of metrics including species richness/diversity, genetic diversity within or between species, and population demographics. '''Species richness''' refers to the total number of different species present within a specific region. Species diversity encompasses both the number of species (richness) and the relative abundance of each species within the population, providing a more comprehensive measure of biodiversity within that region. '''Genetic diversity''' refers to the variety of genes within a population or between populations of the same species. This metric can be used to compare the genetic variability within a single species across different populations or to contrast the gene pools of different species, offering insights into evolutionary processes and the overall health of ecosystems. '''Population demographics''' refer to the variation in physical or demographic traits such as age, size, sex, reproductive status, etc, within or between biological populations. | ||
== Role of biodiversity == | === Role of biodiversity === | ||
Biodiversity is intrinsically connected to ecosystem health, acting as a the foundation for many natural systems. Greater species diversity not only facilitates increased productivity and complexity, but also builds ecosystem resilience. Compared to their more homogenous counterparts, biodiverse populations are better equipped to preserver to buffer against disturbances such as natural disasters, extreme weather events, and pressures from human related activity. The preservation of biodiversity has become even more crucial as our climate and landscape change at unprecedented rates. Healthy ecosystems provide a variety of [https://www.climatehubs.usda.gov/ecosystem-services#:~:text=Ecosystem%20services%20are%20the%20direct,support%20and%20sustain%20human%20livelihoods. ecosystem services] which are necessary for the well being of the global economy, environmental health, and life on earth. Declining biodiversity threatens the integrity of systems that perform such services and by extension the industries, communities, and nations that rely on these services for their livelihood. Biodiversity at face value is an ecological metric, but also functions as a critical indicator for the well being of species, ecosystems, and many aspects of human life. | Biodiversity is intrinsically connected to ecosystem health, acting as a the foundation for many natural systems. Greater species diversity not only facilitates increased productivity and complexity, but also builds ecosystem resilience. Compared to their more homogenous counterparts, biodiverse populations are better equipped to preserver to buffer against disturbances such as natural disasters, extreme weather events, and pressures from human related activity. The preservation of biodiversity has become even more crucial as our climate and landscape change at unprecedented rates. Healthy ecosystems provide a variety of [https://www.climatehubs.usda.gov/ecosystem-services#:~:text=Ecosystem%20services%20are%20the%20direct,support%20and%20sustain%20human%20livelihoods. ecosystem services] which are necessary for the well being of the global economy, environmental health, and life on earth. Declining biodiversity threatens the integrity of systems that perform such services and by extension the industries, communities, and nations that rely on these services for their livelihood. Biodiversity at face value is an ecological metric, but also functions as a critical indicator for the well being of species, ecosystems, and many aspects of human life. | ||
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== Risk and Impacts of Biodiversity Loss or "Risk assessment of biodiversity loss" == | == Risk and Impacts of Biodiversity Loss or "Risk assessment of biodiversity loss" == | ||
Calculating the financial risk from biodiversity loss involves analysing how the degradation of biodiversity and ecosystem services could affect the economy, assets, and livelihood of communities or businesses on a local, national, or global scale. In order to calculate the current and potential impact, biodiversity trends need to be leveraged with corresponding financial models, quantifying a community or industry's reliance on biodiversity and ecosystem services. Sectors like fisheries, agriculture, ecotourism, forestry, and pharmaceuticals are all heavily dependent on the consumption of ecosystem services. The decline of such resources can | Calculating the financial risk from biodiversity loss involves analysing how the degradation of biodiversity and ecosystem services could affect the economy, assets, and livelihood of communities or businesses on a local, national, or global scale. In order to calculate the current and potential impact, biodiversity trends need to be leveraged with corresponding financial models, quantifying a community or industry's reliance on biodiversity and ecosystem services. Sectors like fisheries, agriculture, ecotourism, forestry, and pharmaceuticals are all heavily dependent on the consumption of ecosystem services. The decline of such resources can result in commodity, supply chain, and business continuity risks. | ||
'''Physical Risks:''' Physical risk from biodiversity loss can impact any aspect of an industry supply chain. '''Commodity risks''' such as fishery or crop decline impact businesses at the core of their production process. Decreasing commodity supply can also result in '''supply chain risks''' as products have to be sourced from different locations. '''Damage risks''' from a degrading natural environment is also a possibility, a common example in coastal and riparian zones where biomass is a key buffer protecting property from storms and flooding. '''Value Risks''' can affect businesses or properties directly, as a changing ecosystem can decrease the value of real estate or lower revenue from ecotourism services. | |||
'''Regulatory and Legal Risk:''' Many industries have to follow regulations set by local/governmental bodies. As the decline of biodiversity and key species worsens, these restrictions and the consequences for violating such rules are likely to become more severe. These regulations, laws, and certifications act as a driving force toward more sustainable behavior and often include incentives once completed but not without an added cost until that change is made. | |||
'''Market Risk:''' A loss of biodiversity accompanied by awareness of physical and regulatory risk, or increased cost on consumers has the potential to shift entire markets. Recent data indicates that products indicating environmentally sustainable practices grew up to 17.5-24.5% over a period of three years<ref>https://nielseniq.com/wp-content/uploads/sites/4/2022/10/2022-10_ESG_eBook_NIQ_FNL.pdf</ref>. | |||
'''''[How biodiversity loss makes an impact: Figure 7 https://www3.weforum.org/docs/WEF_New_Nature_Economy_Report_2020.pdf]''''' | '''''[How biodiversity loss makes an impact: Figure 7 https://www3.weforum.org/docs/WEF_New_Nature_Economy_Report_2020.pdf]''''' | ||
'''''[Metrics/models used to assess financial risk of biodiversity loss]''''' | '''''[Metrics/models used to assess financial risk of biodiversity loss]''''' | ||
https://journals.plos.org/sustainabilitytransformation/article?id=10.1371/journal.pstr.0000010 | |||
== Data == | == Data == | ||
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|} | |} | ||
=== IUCN Red List <ref>Pauly, Daniel et al. (2019). Data from: Climate change impacts on marine biodiversity, fisheries and society in the Arabian Gulf [Dataset]. Dryad. https://doi.org/10.5061/dryad.mt588k1</ref> === | === IUCN Red List <ref>Pauly, Daniel et al. (2019). Data from: Climate change impacts on marine biodiversity, fisheries and society in the Arabian Gulf [Dataset]. Dryad. https://doi.org/10.5061/dryad.mt588k1</ref> === | ||
=== Perimeter of presence of species categorized by IUCN === | === Perimeter of presence of species categorized by IUCN === | ||
Revision as of 22:39, 31 August 2024
What is biodiversity?
Biodiversity refers to the variation of living organisms across ecosystems, populations, or geographic scales. The term can be measured using a variety of metrics including species richness/diversity, genetic diversity within or between species, and population demographics. Species richness refers to the total number of different species present within a specific region. Species diversity encompasses both the number of species (richness) and the relative abundance of each species within the population, providing a more comprehensive measure of biodiversity within that region. Genetic diversity refers to the variety of genes within a population or between populations of the same species. This metric can be used to compare the genetic variability within a single species across different populations or to contrast the gene pools of different species, offering insights into evolutionary processes and the overall health of ecosystems. Population demographics refer to the variation in physical or demographic traits such as age, size, sex, reproductive status, etc, within or between biological populations.
Role of biodiversity
Biodiversity is intrinsically connected to ecosystem health, acting as a the foundation for many natural systems. Greater species diversity not only facilitates increased productivity and complexity, but also builds ecosystem resilience. Compared to their more homogenous counterparts, biodiverse populations are better equipped to preserver to buffer against disturbances such as natural disasters, extreme weather events, and pressures from human related activity. The preservation of biodiversity has become even more crucial as our climate and landscape change at unprecedented rates. Healthy ecosystems provide a variety of ecosystem services which are necessary for the well being of the global economy, environmental health, and life on earth. Declining biodiversity threatens the integrity of systems that perform such services and by extension the industries, communities, and nations that rely on these services for their livelihood. Biodiversity at face value is an ecological metric, but also functions as a critical indicator for the well being of species, ecosystems, and many aspects of human life.
Biodiversity Loss
Observed trends
Biodiversity loss refers to the reduction or disappearance of biological diversity, including the loss of species, habitats, and genetic diversity within ecosystems. This phenomenon is a significant environmental concern, as biodiversity plays a crucial role in maintaining the balance and health of ecosystems.
While biodiversity naturally fluctuates over time as ecosystems change and species adapt like many aspects of ecology, recent trends indicate a worrying acceleration in biodiversity loss. Historically, species extinction occurs at a rate of approximately ten percent every million years[1]. However, recent data suggests that the current rate of extinction and biodiversity decline far exceeds historical averages[2]. Some scientists argue that this rapid decline could be the early stages of a mass extinction event, potentially the sixth in the history of life on Earth.
As a result of climate change and human development, the biodiversity of ecosystems throughout the world has been declining. In 2022, the World Wildlife Fund’s Living Planet Report found that populations of measured vertebrate species have declined by an average of 69 % since 1970 [3]. This is in large part due to the repurposing of native habitats for human needs, like crop and livestock production. Poaching of already endangered species, deforestation, and overfishing are direct human activities that contribute to the loss of organismal populations. Climate change has only exacerbated these problems, resulting in habitat loss after climate disasters, water pollution, and rising temperatures that increasingly make lands and waters uninhabitable to native species. These factors combine to cause population decline or extinction of biological life.
The primary causes of biodiversity loss include (add references here: might be this one https://www3.weforum.org/docs/WEF_New_Nature_Economy_Report_2020.pdf See Fig. 3):
- Habitat Destruction: The alteration or destruction of natural habitats due to human activities such as deforestation, urbanization, and agriculture.
- Climate Change: Changes in climate patterns can alter habitats and ecosystems, making them inhospitable for certain species.
- Pollution: Pollution of air, water, and soil can harm wildlife and plant species.
- Overexploitation: Excessive hunting, fishing, and harvesting of species can lead to their decline or extinction.
- Invasive Species: Non-native species introduced to an ecosystem can outcompete native species for resources.
The loss of biodiversity can have far-reaching consequences, including:
- Ecosystem Instability: Reduced biodiversity can lead to weakened ecosystem resilience and functionality.
- Loss of Services: Ecosystems provide essential services like pollination, water purification, and climate regulation. Biodiversity loss can impair these services.
- Economic Impact: Many industries, such as agriculture and pharmaceuticals, rely on biodiversity. Its loss can have economic repercussions.
Efforts to mitigate biodiversity loss include:
- Protected Areas: Establishing and managing protected regions to conserve habitats and species.
- Sustainable Practices: Promoting sustainable agriculture, forestry, and fishing to reduce environmental impact.
- Conservation Programs: Implementing species-specific conservation programs and breeding endangered species in captivity.
- Policy and Legislation: Enacting laws and policies to protect biodiversity and regulate activities that contribute to its loss.
Projected Biodiversity Loss
Increasing efforts to measure and preserve biodiversity have aided in the understanding of how this valuable resource will change in the future, however, concrete estimates on future biodiversity decline are limited. Current estimates from an expert panel indicate that if trends continue, an estimated 37% of species could be under threat or extinct by the year 2100[4]. Over the coming decades, climate change is expected to play a larger role in biodiversity loss. As carbon emissions increase, temperature and habitat change will decrease nature's ability to sequester carbon and perform ecosystem services, thus feeding back into the cycle. The largest influence over this change is how countries and organizations across the world respond to the crisis. At current rates, biodiversity is predicted to continue falling at catastrophic rates. In their 2022 Living Planet Report, the World Wildlife Fund outlined their hope for a net positive impact on biodiversity by 2050 relative to a 2010 baseline. This pathway included an aggressive change in conservation measures alongside new sustainable consumption and development practices.
Risk and Impacts of Biodiversity Loss or "Risk assessment of biodiversity loss"
Calculating the financial risk from biodiversity loss involves analysing how the degradation of biodiversity and ecosystem services could affect the economy, assets, and livelihood of communities or businesses on a local, national, or global scale. In order to calculate the current and potential impact, biodiversity trends need to be leveraged with corresponding financial models, quantifying a community or industry's reliance on biodiversity and ecosystem services. Sectors like fisheries, agriculture, ecotourism, forestry, and pharmaceuticals are all heavily dependent on the consumption of ecosystem services. The decline of such resources can result in commodity, supply chain, and business continuity risks.
Physical Risks: Physical risk from biodiversity loss can impact any aspect of an industry supply chain. Commodity risks such as fishery or crop decline impact businesses at the core of their production process. Decreasing commodity supply can also result in supply chain risks as products have to be sourced from different locations. Damage risks from a degrading natural environment is also a possibility, a common example in coastal and riparian zones where biomass is a key buffer protecting property from storms and flooding. Value Risks can affect businesses or properties directly, as a changing ecosystem can decrease the value of real estate or lower revenue from ecotourism services.
Regulatory and Legal Risk: Many industries have to follow regulations set by local/governmental bodies. As the decline of biodiversity and key species worsens, these restrictions and the consequences for violating such rules are likely to become more severe. These regulations, laws, and certifications act as a driving force toward more sustainable behavior and often include incentives once completed but not without an added cost until that change is made.
Market Risk: A loss of biodiversity accompanied by awareness of physical and regulatory risk, or increased cost on consumers has the potential to shift entire markets. Recent data indicates that products indicating environmentally sustainable practices grew up to 17.5-24.5% over a period of three years[5].
[How biodiversity loss makes an impact: Figure 7 https://www3.weforum.org/docs/WEF_New_Nature_Economy_Report_2020.pdf]
[Metrics/models used to assess financial risk of biodiversity loss]
https://journals.plos.org/sustainabilitytransformation/article?id=10.1371/journal.pstr.0000010
Data
[List other datasets in this doc: https://docs.google.com/document/d/1aDrYXfmA1QRak59Xf-fQWAIKyD2lANKF4nnCFdiTta8/edit
add financial data, like fishery loss, catch record which can be used to infer biodiversity loss]
| Indicies | Description | Data Access |
|---|---|---|
| Global Biodiversity Information Facility (GBIF) | GBIF is an international data network that collects biodiversity related occurrence data from thousands of different sources including governments, museums, studies, journals, and popular consumer tools such as eBird and iNaturalist. The site contains vast amounts of data that can be refined to singular regions or species. | GBIF Homepage |
| Living Planet Index (LPI) | The LPI is a large scale biodiversity database that collects information on documented vertebrate populations. It is a key component of the WWF Living Planet Report, which is produced by the World Wildlife Fund in collaboration with the Zoological Society of London and other partners. The Index provides insights into trends in global biodiversity by tracking changes in populations of vertebrate species over time. It is a valuable tool for understanding the impact of human activities on wildlife. The index tracks population trends of thousands of vertebrate species, normalizing the data to account for variations in population size. The data spans from the year 1970 to the present, and describes vertebrate populations from locations across the globe. | LPI Homepage |
| IUCN Red List of Threatened Species | The IUCN Red List of Threatened Species describes the global extinction risk status of plant, animal, and fungus species. It is managed by the International Union for Conservation of Nature, a global organization that works on environmental conservation and sustainable use of natural resources. The IUCN Red List assesses the conservation status of species based on criteria such as population size, distribution, and trends, placing them into one of seven threat categories: Least Concerned, Near Threatened, Vulnerable, Endangered, Critically Endangered, Extinct in the Wild, or Extinct. | IUCN Homepage |
| Habitat Suitability Index | ||
| Encyclopedia of Life? | ||
| Biodiversity Heritage Library? | ||
| Biodiversity Data Library? | ||
| United States Geographical Survey (USGS)
Data Tools |
The USGS builds and contributes to a variety of biodiversity related tools and indices. These include the Tagged Animal Movement Explorer, GBIF, Amphibian and Reptile Species Distribution Explorer, Integrated Taxonomic Information Systems, the US Protected Areas Database, the World Terrestrial Ecosystems Explorer, and the US Introduced and Invasive Species Map. | USGS Biodiversity Tool Selection |
| Earth Science Data Systems (ESDS) Program | Earth Data, by NASA, is a satellite based remote monitoring tool which collects data into four main categories: vegetation characteristics, spectroscopy, human impacts, and species distribution. Data from these categories can be fine tuned to assist in the analysis of many sustainability challenges including air quality, agriculture and water management, biological diversity and ecological conservation, water quality, and many more. | Biological Diversity and Ecological Conservation Data Pathfinder |
| UN Biodiversity Lab | The UN Biodiversity Lab is an open source spatial data tool that combines data from a variety of sources including satellites, scientists, and indigenous communities to construct a global modeling tool. Layers can be applied to filter data interests toward almost any conservation goal, ranging from water scarcity to above ground woody carbon density to chlorophyll concentration in sea water and many more. | UN Biodiversity Lab Map |
IUCN Red List [6]
Perimeter of presence of species categorized by IUCN
The bar chart illustrates the distribution of species categorized by the IUCN based on their presence perimeter. Each section of the bar chart corresponds to the perimeter of species presence within different classifications according to the IUCN.
The IUCN Dataset
The IUCN dataset offers a comprehensive insight into the conservation status and distribution of various species assessed by the International Union for Conservation of Nature. It contains valuable information on taxonomic classifications, conservation categories, habitat types, and geographic presence or absence of species.
This dataset serves as a critical resource for understanding the threats to biodiversity, highlighting species at risk of extinction, and guiding conservation efforts worldwide. It enables researchers, conservationists, policymakers, and the general public to access and analyze data crucial for prioritizing conservation actions, identifying regions of high biodiversity significance, and tracking changes in species' statuses over time.
By leveraging this dataset, one can explore trends in species conservation status, identify patterns in threatened species distribution across different habitats, and strategize conservation initiatives targeted towards safeguarding vulnerable ecosystems and species. The dataset's rich information on taxonomic classifications, conservation categories, and geographic distributions provides a foundation for informed decision-making, advocacy, and initiatives aimed at preserving and restoring global biodiversity.
The dataset is explained in detailed here: https://drive.google.com/file/d/1jhCuZr-1bdh3AafpuxNPIMKIbEQKCH-z/view?usp=drive_link
Access the complete dataset here: https://drive.google.com/file/d/14eseGYDiRcC5vmV3gFRR_zb0QlIH0bJz/view?usp=drive_link
Habitat Suitability Index (HSI) change database for Marine Animals [7]
Marine biodiversity loss refers to the decline or reduction in the variety and abundance of life forms within marine ecosystems. It encompasses the diminishing diversity of species, populations, and habitats in oceans, seas, and other saltwater environments. This loss can occur due to various factors, including human activities, climate change, pollution, habitat destruction, overfishing, and invasive species.
Habitat Suitability Index
It's a measure used in ecological and environmental studies to assess the suitability of a particular habitat for a species or a group of species. The HSI considers various environmental factors, such as temperature, humidity, food availability, and other habitat characteristics, to determine how suitable an area is for the survival, growth, and reproduction of a specific species.
Access the complete dataset here: https://drive.google.com/file/d/1KPMP6N2j-tZvqbSbnugVMPt6NJWjLzWT/view?usp=drive_link
HSI Index plots for Gulf Area
These geo-plots display the distribution of five endangered marine animals in the Gulf area. The intensity of the plot colors indicates the degree of change in the Marine Habitat (Habitat Suitability Index).
frameless|500x500px|White Dolphin distribution in the Gulf area 500x500px|Sea Cow distribution in the Gulf area
500x500px|Sea Turtle distribution in the Gulf area 500x500px|Hawksbill Sea Turtle distribution in the Gulf area
Others:
Research gaps: linking biodiversity loss directly to financial loss
References
- ↑
Hannah Ritchie (2022) - “There have been five mass extinctions in Earth's history” Published online at OurWorldInData.org. Retrieved from: 'https://ourworldindata.org/mass-extinctions' [Online Resource] - ↑ Ceballos, G., Ehrlich, P. R., Barnosky, A. D., García, A., Pringle, R. M., & Palmer, T. M. (2015). Accelerated Modern Human–induced Species losses: Entering the Sixth Mass Extinction. Science Advances, 1(5).
- ↑ Living Planet Report 2020 | Official Site | WWF. (2020). WWF; World Wide Fund For Nature. https://livingplanet.panda.org/en-us/
- ↑ Isbell, F., Balvanera, P., Mori, A. S., He, J., Bullock, J. M., Regmi, G. R., Seabloom, E. W., Ferrier, S., Sala, O. E., Guerrero‐Ramírez, N. R., Tavella, J., Larkin, D. J., Schmid, B., Outhwaite, C. L., Pramual, P., Borer, E. T., Loreau, M., Omotoriogun, T. C., Obura, D. O., & Anderson, M. (2022). Expert perspectives on global biodiversity loss and its drivers and impacts on people. Frontiers in Ecology and the Environment, 21(2). https://doi.org/10.1002/fee.2536
- ↑ https://nielseniq.com/wp-content/uploads/sites/4/2022/10/2022-10_ESG_eBook_NIQ_FNL.pdf
- ↑ Pauly, Daniel et al. (2019). Data from: Climate change impacts on marine biodiversity, fisheries and society in the Arabian Gulf [Dataset]. Dryad. https://doi.org/10.5061/dryad.mt588k1
- ↑ Resources. (n.d.). IUCN. https://www.iucn.org/resources
5. United Nations Environment Programme (UNEP) - Biodiversity