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Protected areas proven to protect biodiversity

Date:
August 28, 2014
Source:
Monash University
Summary:
Protected areas conserve biodiversity, experts say, and more action is needed to ensure safeguards are in place to protect these areas. "Our work has now shown that protected areas have significant biodiversity benefits. In general, plant and animal populations are larger and more species are found inside rather than outside protected areas. In other words, protected areas are doing their job," they report.

Protected areas conserve biodiversity and more action is needed to ensure safeguards are in place to protect these areas, researchers say.

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Published in PLOS ONE, researchers from Monash University, Stellenbosch University and the University of Exeter, used meta-analysis -- combining results from different studies -- to look at the past 30 years of research into these areas, to determine whether they actually protect biodiversity.

Dr Bernard Coetzee, School of Biological Sciences, said protecting an area from human exploitation made common sense, however, up until now there had been little evidence to determine whether these conservation areas actually protected biodiversity.

"Our work has now shown that protected areas have significant biodiversity benefits. In general, plant and animal populations are larger and more species are found inside rather than outside protected areas. In other words, protected areas are doing their job."

The researchers said national parks, nature reserves and other ways of setting land aside to protect species had long been a key strategy in the conservation of biodiversity.

However, there was a lot of controversy about the effectiveness of protected areas in conserving biodiversity. Some studies showed that fewer species and lower populations of key species were found inside, compared to outside reserves. Others showed just the opposite.

Dr Coetzee said the level of conflicting evidence was worrying as it made political decisions to protect new areas, often at significant cost, problematic.

"This research now shows that protecting areas does work in conserving biodiversity, and it should remain a key strategy for conservation going forward."

The authors say the research helps justify the international focus on protected areas, which is a welcome message with The IUCN World Parks Congress 2014 to be held in Sydney coming up later this year.

"This research means that protecting areas and spending hard-contested budgets on their maintenance are worthwhile for all governments. It also shows that achieving the Convention on Biodiversity's 2020 Aichi Target 11 to increase protected area coverage to 17 per cent of land and inland water areas will really help protect biodiversity," Dr Coetzee said.

"We now know it works, but we need more action to ensure increased coverage and better safeguards for their long term maintenance."


Story Source:

The above story is based on materials provided by Monash University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Bernard W. T. Coetzee, Kevin J. Gaston, Steven L. Chown. Local Scale Comparisons of Biodiversity as a Test for Global Protected Area Ecological Performance: A Meta-Analysis. PLoS ONE, 2014; 9 (8): e105824 DOI: 10.1371/journal.pone.0105824

Cite This Page:

Monash University. "Protected areas proven to protect biodiversity." ScienceDaily. ScienceDaily, 28 August 2014. <www.sciencedaily.com/releases/2014/08/140828110937.htm>.
Monash University. (2014, August 28). Protected areas proven to protect biodiversity. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2014/08/140828110937.htm
Monash University. "Protected areas proven to protect biodiversity." ScienceDaily. www.sciencedaily.com/releases/2014/08/140828110937.htm (accessed October 30, 2014).

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