Compensating for lost nature values through biodiversity offsetting-Where is the evidence?

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Compensating for lost nature values through biodiversity offsetting-Where is the evidence?

Josefsson, Jonas (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Swedish Univ Agr Sci, Dept Ecol, Uppsala, Sweden.

Ahlbäck Widenfalk, Lina (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Greensway AB,Swedish Univ Agr Sci, Dept Ecol, Uppsala, Sweden.;Greensway AB, Uppsala, Sweden.

Blicharska, Malgorzata, 1979- (author): Uppsala universitet,Naturresurser och hållbar utveckling

Hedblom, Marcus (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Institutionen för stad och land,Department of Ecology,Department of Urban and Rural Development,Swedish Univ Agr Sci, Dept Ecol, Uppsala, Sweden.;Swedish Univ Agr Sci, Dept Urban & Rural Dev, Uppsala, Sweden.

Pärt, Tomas (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Swedish Univ Agr Sci, Dept Ecol, Uppsala, Sweden.

Ranius, Thomas (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Swedish Univ Agr Sci, Dept Ecol, Uppsala, Sweden.

Öckinger, Erik (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Swedish Univ Agr Sci, Dept Ecol, Uppsala, Sweden.

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Elsevier, 2021
2021
English.
In: Biological Conservation. - : Elsevier. - 0006-3207 .- 1873-2917. ; 257

Related links:: https://doi.org/10.1...; show more...; https://urn.kb.se/re...; https://doi.org/10.1...; https://res.slu.se/i...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

Biodiversity offsetting is becoming a principal instrument for managing biodiversity and ecosystem services in society. Still, it is unclear whether biodiversity offsetting can fully mitigate losses to natural values. When reviewing published studies on offsetting, we found only 40 evaluations with primary outcome data on biodiversity or ecosystem services. Among these, we found no evidence that biodiversity gains from offsets actually compensate for development-associated losses, because losses were never estimated. The failure to quantify losses is troubling from a conservation perspective, as applying offsets that do not match up losses and gains will result in continued net loss of biodiversity. Instead, most studies (76%) included only reference habitats as comparator and evaluated singular taxa of biodiversity (66%), and rarely ecosystem services (ES). The overall meta-analysed effect size from reference habitat comparisons suggests that offsets perform poorly when contrasted to these habitats. There was a strong bias towards North American freshwater biomes, with only six published evaluations from terrestrial habitats. The bias and small number of studies precluded any detailed meta-analytical enquiries, such as identification of main drivers of outcomes. For biodiversity offsetting to be an important instrument for halting biodiversity losses, all actions must build on solid scientific evidence, and our review show that this evidence base is yet not in place. We conclude that there is a strong need for rigorous evaluation of offsetting projects, and to this end governments could request long-term monitoring programmes as an integral part of offsetting actions and make data openly available for assessment.

Subject headings

NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)

Keyword

Biodiversity offsetting
No net loss
Ecosystem services
Habitat
Species richness
Ecological compensation
Evaluation
Meta-analysis

Publication and Content Type

ref (subject category)
art (subject category)

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By the author/editor: Josefsson, Jonas; Ahlbäck Widenfal ...; Blicharska, Malg ...; Hedblom, Marcus; Pärt, Tomas; Ranius, Thomas; show more...; Öckinger, Erik; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Ecology

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Environmental Sc ...

Articles in the publication: Biological Conse ...

By the university: Uppsala University; Swedish University of Agricultural Sciences

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