ZooKeys anniversary: 10 years of leadership toward open-access publishing of zoological data and establishment at Pensoft of like-minded sister journals across the biodiversity spectrum

ZooKeys anniversary: 10 years

systematics, which are now also amongst the most popular titles in their respective domains. The journal has been thriving since its inception and is currently considered as one of the most prolific and liked Open Access journals in zoology. ZooKeys started with merely 32 published papers in 2008 and just in a few years time became a mega-journal, publishing 466 papers in 2011. The number has been increasing since reaching its maximum in 2016-581 (Table 1, Fig. 1). To date, the journal has received more than 5200 submissions (no accurate data available for [2008][2009][2010] and published 4103 articles, including 110 monographs. The number of published pages increased from 657 in 2008 to 16582 in 2016. The average rejection rate for the period 2016-2017 was around 25%, which we believe is optimal and sustainable for a primarily taxonomic journal.  2008  32  657  2009  155  3738  2010  180  4871  2011  510  466  11145  2012  442  435  12205  2013  505  488  13382  2014  554  525  14178  2015  674  501  12634  2016  713  581  16582  2017  841  482  14091   The number of all authors publishing in ZooKeys is 5720 (ZooBank, courtesy of Richard Pyle, Bishop Museum, Honolulu) from altogether 131 countries. The highest numbers come first from China, then United States of America, followed by Brazil, Italy, Germany and Canada in that order. The Impact Factor of ZooKeys continues to grow, starting at 0.517 and currently it is 1.079.
Altogether, 8977 new species-group, 650 new genus-group and 45 new familygroup taxa have been published in the journal since its launch (Table 2   Pensoft has been heavily investing in the technological advancement of its journals. A list of the most significant technologies implemented by its flagship ZooKeys in the recent years to facilitate editors, reviewers and authors is available in Table 3. Over the past ten years, ZooKeys published a variety of papers on systematic zoology, including several world records, such as the deepest cave-dwelling centipede, the tiniest free-living insect and the smallest land snail. The journal also served as a platform for many of the world's first-of-a-kind, like the first insect description solely from photographs, the first study supported by crowd-funding in Japan, the first-of-akind footage of shrimp filter-feeding at depth of a 4826 m in the Mariana Trench, the first amphibious centipede and the second fossil beetle found on Antarctica. While ZooKeys is regularly featured in the annual "Top 10 species" by the International Institute for Species Exploration, in 2017, there were two species published in the journal, which appeared on the list: the world's second leggiest millipede -the 414-legged Illacme tobini and the first known amphibious centipede Scolopendra cataracta. The ten most viewed ZooKeys articles can be seen in Table 4. Thanks to the collaboration between Pensoft and Altmetric, it is possible to track the popularity of each article published in ZooKeys within the public domain (Fig. 3). Provided the DOI link of a paper is included in an online publication, its citations from across a diverse range of both conventional and social online media platforms, including news outlets, blogs, Twitter, Facebook, Google+,   The description of a species of moth named after then US President-elect Donald Trump is an excellent example for a study with remarkable popularity across platforms (available from https://doi.org/10.3897/zookeys.646.11411). While as many as 964 tweets have been registered (likely many more, given that the count only registers the tweets featuring the DOI link to the paper), a total of 124 international news outlets (again, many have gone unaccounted) ran the story, including The Washington Post, FOX News, CNN, BBC News, The Independent, The Huffington Post, Ria.RU (RIA Novosti), Gazeta.ru, Wired (Italy), Le Figaro, Die Welt, Spiegel, National Geographic Australia, The Japan Times and The Hindustan Times.
A more recent study describing a new species of exploding ant was not only featured in 89 news stories by news outlets from around the world, such as National Geographic, The New York Times, FOX News, BBC News, Sky News, The Guardian, ABC, Gazeta.ru, Publico, Stern, El Pais, The Hindu, but also tweeted along with its DOI as many as 52 times. In fact, the remarkable species was even 'assigned' with its own hashtag (#ExplodingAnts) to trigger further discussion and engagement over the social media platform. Table 5 shows the top ten ZooKeys papers, which attracted the largest media interest, according to data available from the global science news service Eurekalert.
Apart from their remarkable findings, some of our authors have also been given a place in the spotlight by the news media. A Skype interview with Dr Chris Hamiltonthe discoverer of the Johnny Cash tarantula -was aired live on Sky News, while Dr Vazrick Nazari, who added the name Neopalpa donaldtrumpi to the scientific records, was interviewed on BBC Radio 5. A podcast with Alice Laciny, the lead author of the study describing the exploding ant Colobopsis explodens, where she explains the curious behaviour of the new species and in the background, the ant is seen to actually defend itself against a larger offender, was made available on BBC News.
New species described in ZooKeys enjoy the attention of their celebrity namesakes, as well. Earlier this year, shortly after a water beetle discovered in Borneo was named after the famous actor and environmentalist Leonardo DiCaprio, the insect appeared on his profile photo on Facebook -an act, which was itself reported by several news outlets, including the Daily Mail, W Magazine and La Republica.
The success of ZooKeys would not be possible without the help of our authors, reviewers, subject editors, and readers, to whome we are very very thankful!