Friday, September 30, 2022

Climate change will have a serious impact on birds

New research predicts that bird communities around the world will change by 2080 due to the climate crisis, largely as a result of changing ranges.

For projections of bird communities by the year 2080, the scientific team from Durham University, UK and the Senckenberg Center for Biodiversity and Climate Research, Germany related past bird distributions to climate data and then based these relationships on two future climate scenarios. applied. on low and medium emissions of green house gases, To predict changes in the distribution of species.

phylogenetic diversity

The team analyzed changes in not only species numbers in the regions, but also species types. To summarize changes in species types, they calculated something called phylogenetic diversity, which summarizes how many different types of birds there would be, Durham University reports in a statement.

For example, a community consisting of several closely related species, such as singing birds Those that feed on insects will have a much lower phylogenetic diversity score than a community that includes a mixture of more distant species, for example, songbirds and other species. what bird raptor, partridge hey seagull,

They investigated how bird communities around the world might change in the future and found that Climate change Not only will this affect species numbers, but it will also have a profound effect on phylogenetic diversity and community structure.

Examples of bird species that are currently increasing in phylogenetic diversity in the UK, possibly driven largely by climate change, include european bee eaters, a type of bird that feeds on insects, stilts and spoonbills, which normally breed further south in Europe, but now breed infrequently in the UK. Bee eaters are only distantly related to other bird species breeding in the UK.

Similarly, newly reintroduced species, such as spatulas And this black winged stiltshave increased the phylogenetic diversity of birds in the UK in recent years.

loss of species

The researchers evaluated data from a total of 8,768 bird species worldwide to estimate how many different lineages may be lost or added regionally as species respond to climate change by changing their distribution.

Although the researchers estimate that species losses are more common in tropical and subtropical regions, a phylogenetic reorganization of species communities is expected around the world.

they are study published in the journal Proceedings of the Royal Society B (1)emphasizes that Conservation of local phylogenetic diversity may be important for the resilience of biological diversity to environmental changes.,

Reference
  • (1) Projected climate change impacts on the phylogenetic diversity of the world’s terrestrial birds: more than the number of species., Proceedings of the Royal Society b.
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