[Mitarbeiter.zoologie] Fwd: Online now in One Earth: A quarter of known bee species haven’t appeared in public records in over two decades

Mi Feb 17 17:48:47 CET 2021

Hi Antonella and all.
Just wanted to mention that it is Not exactly what is said in the study, I
think, please correct me If I am wrong. Species richness measured per year
declined by 25% since 1990 which does Not mean that 25% of the species were
Not recorded at all since then. They are Not löst but might be Sampled less
often.
Julia

Antonella Soro <antonella.soro at zoologie.uni-halle.de> schrieb am Mi., 17.
Feb. 2021, 16:26:

> dear all,
>
> just received the email below.
>
> it might be of interest to many
>
> ciao
>
> a
>
>
> Begin forwarded message:
>
> *From: *"One Earth- Cell Press" <update at cellpress.email.elsevier.com>
> *Subject: **Online now in One Earth: A quarter of known bee species
> haven’t appeared in public records in over two decades*
> *Date: *17. February 2021 at 15:52:40 CET
> *To: *<antonella.soro at zoologie.uni-halle.de>
> *Reply-To: *"no-reply" <feedback at cell.com>
>
> Can't see this email properly? *Click here to view an online version*
> <http://t.cellpress.email.elsevier.com/r/?id=hdf0d2bb%2Cd9bf2fd%2Cd3e33cd&utm_campaign=STMJ_130852_SC&utm_medium=email&utm_acid=77630403&SIS_ID=&dgcid=STMJ_130852_SC&CMX_ID=&utm_in=DM120643&utm_source=AC_&p1=%40MJH6rlcPw64XctD5w8gYAcRu6pCNchs5dCdgVWM7aWk%3D&s=HayKV1Dl4Bi0bPY5_jgpNPUoPXq6lsh--jtbDn9HbAg>
> [image: One Earth | Cell Press]
> <http://t.cellpress.email.elsevier.com/r/?id=hdf0d2bb%2Cd9bf2fd%2Cd3e33ce&utm_campaign=STMJ_130852_SC&utm_medium=email&utm_acid=77630403&SIS_ID=&dgcid=STMJ_130852_SC&CMX_ID=&utm_in=DM120643&utm_source=AC_&s=aTxSZ4kLz1DxAs4EiL_NFgkwksPH6NH8XrE0rC315bA>
> [image: One Earth: A better future is waiting]
> <http://t.cellpress.email.elsevier.com/r/?id=hdf0d2bb%2Cd9bf2fd%2Cd3e33cf&utm_campaign=STMJ_130852_SC&utm_medium=email&utm_acid=77630403&SIS_ID=&dgcid=STMJ_130852_SC&CMX_ID=&utm_in=DM120643&utm_source=AC_&s=Sm1_fdhgbRAs70RY05-3XLsl4v5toPGRccWcMr7vppQ>
>   This photo shows a giant Patagonian bumblebee (Bombus dahlbomii).
> Credit: Eduardo E. Zattara
> Worldwide occurrence records suggest a global decline in bee species
> richness
>
> There are over 20,000 species of wild bee, and they are fundamental to the
> reproduction of wild plant species and to the pollination of 85% of food
> crops. Decline in the abundance and diversity of bees is well established
> at the local level, but few large-scale, global analyses exist to assess
> the current state of bee diversity worldwide.
>
> A study led by Eduardo E. Zattara from the Consejo Nacional de
> Investigaciones Científicas y Técnicas (CONICET) in Argentina analyzed
> historical occurrence data from the Global Biodiversity Information
> Facility and found that since the 1990s, up to 25% of reported bee species
> are no longer being reported in global records. While this does not mean
> that these species are all extinct, it might indicate that these species
> have become rare enough that no one is observing them in nature.
>
> *Read the article*
> <http://t.cellpress.email.elsevier.com/r/?id=hdf0d2bb%2Cd9bf2fd%2Cd3e33d0&utm_campaign=STMJ_130852_SC&utm_medium=email&utm_acid=77630403&SIS_ID=&dgcid=STMJ_130852_SC&CMX_ID=&utm_in=DM120643&utm_source=AC_&s=eTwDnUI25mmkz3l4HvBJxB9Ow9ce7a7C62T3eu_LdTg>
>
>   Check out the Q&A from the author, Eduardo E. Zattara, a biologist at
> the Pollination Ecology Group from the Institute for Research on
> Biodiversity and the Environment (CONICET-Universidad Nacional del
> Comahue). He also holds an appointment at the Smithsonian Institution,
> where he researches phylogeny and regeneration of ribbon worms, and in the
> Department of Biology at University of Indiana.
> Why is assessing bee decline so important?
>
> *“We have to remember that ‘bee’ doesn't just mean honeybees, even though
> honeybees are the most cultivated species. Our society's footprint impacts
> wild bees as well, which provide ecosystem services we depend on. Something
> bad is happening to the bees, and something needs to be done. We cannot
> wait until we have absolute certainty because we rarely get there in
> natural sciences. The next step is prodding policymakers into action while
> we still have time. The bees cannot wait.”*
> What surprised you about your findings?
>
> *“With citizen science and the ability to share data, records are going up
> exponentially, but the number of species reported in these records has been
> going down steadily since the 1950s and then sharply since the 1990s. It’s
> not a bee cataclysm yet, but what we can say is that wild bees are not
> exactly thriving.”*
> What would your colleagues take away from this work?
>
> *“It's not really about how certain the numbers are here. It's more about
> the trend. It's about confirming what’s been shown to happen locally is
> going on globally. And about the fact that much better certainty will only
> be achieved as more data are shared with public databases.”*
>
> *Read the article*
> <http://t.cellpress.email.elsevier.com/r/?id=hdf0d2bb%2Cd9bf2fd%2Cd3e33d1&utm_campaign=STMJ_130852_SC&utm_medium=email&utm_acid=77630403&SIS_ID=&dgcid=STMJ_130852_SC&CMX_ID=&utm_in=DM120643&utm_source=AC_&s=Y3K5Ll4Zp9dz0HSxDZmSmXD2ftUE10tG603cgshSS3I>
>
> Highlights from the study
>
> • This is the first large-scale global analysis of bee diversity decline,
> contrasting with existing studies at the local level.
> • Analysis of public occurrence reports of over 20,000 bee species shows
> a steady decline in the number of reported species since the 1950s and a
> sharp decline since the 1990s.
> • Decline in number of reported species since the 1990s averaged at 25%.
> However, it was not evenly distributed among bee families, ranging from 17%
> for halictid bees to as high as 41% for family Melittidae.
>
>
> <http://t.cellpress.email.elsevier.com/r/?id=hdf0d2bb%2Cd9bf2fd%2Cd3e33d2&utm_campaign=STMJ_130852_SC&utm_medium=email&utm_acid=77630403&SIS_ID=&dgcid=STMJ_130852_SC&CMX_ID=&utm_in=DM120643&utm_source=AC_&s=tgqAuw5lQjIJgxhqzw3t4BaDH886KHujOgPYN7SIqJk> *One
> Earth* is the home for high-quality research that seeks to understand and
> address today's environmental grand challenges, publishing research across
> the spectrum of environmental change and sustainability science. One Earth
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> cross-pollination of ideas with a platform that unites communities, fosters
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