Biodiversity Information Science and Standards : Conference Abstract
Conference Abstract
BioBlitz is More than a Bit of Fun
expand article infoSofie Meeus, Iolanda Silva-Rocha§, Tim Adriaens|, Peter Brown, Niki Chartosia#, Bernat Claramunt-López¤, Angeliki F. Martinou«, Michael Pocock», Cristina Preda˄, Helen Roy˅, Elena Tricarico¦, Quentin Groom
‡ Meise Botanic Garden, Meise, Belgium
§ CIBIO Research Centre in Biodiversity and Genetic Resources, Porto, Portugal
| Research Inst. for Nature and Forest (INBO), Brussels, Belgium
¶ School of Life Sciences, Anglia Ruskin University, Cambridge, United Kingdom
# Department of Biological Sciences, University of Cyprus, Nicosia, Cyprus
¤ CREAF, Edifici Ciències, Universitat Autònoma de Bellaterra (UAB), Bellaterra, Spain
« Joint Services Health Unit, Akrotiri, Cyprus
» Centre for Ecology and Hydrology, Wallingford, United Kingdom
˄ Ovidius University of Constanta, Constanta, Romania
˅ UK Centre for Ecology and Hydrology, Wallingford, United Kingdom
¦ Department of Biology, University of Florence, Florence, Italy
Open Access


Emerging in the 1990s, bioblitzes have become flagship events for biodiversity assessments. Although the format varies, a bioblitz is generally an intensive, short-term survey in a specific area. Bioblitzes collect biodiversity data and can therefore play a role in research, discovery of new species at a site and monitoring. They may also promote public engagement, community building, and education and outreach. However, the question remains, how effective are bioblitzes at achieving these goals? To evaluate the value of bioblitzes for these multiple goals, we conducted two meta-analyses, one on sixty published bioblitzes and the other on 1860 bioblitzes conducted using iNaturalist. Furthermore, we made an in-depth analysis of the data collected during a bioblitz we organized ourselves.

From these analyses we found bioblitzes are effective at gathering data—collecting on average more than 300 species records—despite limitations of bias, which many types of biodiversity surveys suffer from, such as preferences for charismatic taxa, and uneven sampling effort in time and space. However, because the survey intensity, duration and extent are more controlled, a bioblitz is more repeatable than some other forms of survey. We also found that bioblitzes were highly effective at engaging people in sustained activity after they participated in a bioblitz. A bioblitz may therefore act as a trigger for participation in biological recording, which is supported by the use of technology, particularly smartphone apps. Another important aspect is the involvement of both citizen scientists and professional biologists, creating learning opportunities in both directions. Indeed, it was clear that many bioblitzes acted as brokerage events between individuals and organizations, and between professionals who work in biodiversity research and conservation. Such community building is important for communication and building trust between organizations and citizens to the benefit of biodiversity research and conservation.

From the impartial perspective of hypothesis-driven science, bioblitzes may seem like a lot of work with limited scientific gain. However, this largely overlooks how important people, communities and their organizations are in gathering data, and in conserving biodiversity.


engagement, species inventory, iNaturalist, citizen science, meta-analysis, community building

Presenting author

Sofie Meeus

Presented at

TDWG 2021


We acknowledge the support of the Belgian Science Policy Office under the TrIAS and TrIAS Aware projects (BR/165/A1/TrIAS) and Alien-CSI COST Action (CA17122), supported by COST (European Cooperation in Science and Technology), and the support to Meise Botanic Garden by the Department of Economy, Science and Innovation (EWI) of the Flemish government under the Green Pioneers project.

Funding program

European Cooperation in Science and Technology (COST)

Grant title

TrIAS and TrIAS Aware (BR/165/A1/TrIAS)

Increasing understanding of alien invasive species through citizen science (Alien CSI, CA17122)

Green Pioneers

Author contributions

ISR, TA, SM and QG developed the concept of the article that this talk is based on and initiated the research. QG, AM, CP, HR, MP, ISR, EM, NC, TA, ET helped to organise and participated in the Akrotiri Bioblitz. ISR, SM, TA, QG, CP, NC, AM contributed to the literature review. QG & SM analysed the data from iNaturalist. TA, SM, QG, IR wrote the initial draft. All authors contributed to, reviewed and revised the manuscript. HR & QG acquired funding. SM & QG administered and supervised the project.

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