Survey leads on the Air Survey  compared the identification SHR-1258 Data Sheet accuracy of novice participants and expert lichenologists and identified that for particular species of lichen, average accuracy of identification across novices was 90 or more, on the other hand for others accuracy was as low as 26 . Develop strong collaborations (to construct trust and self-assurance)To tackle the second important trade-off--building a reputation with partners (investigation) or participants (outreach)--in order to build trust and self-assurance, efficient collaborations (inside practitioner organisations and in between practitioners and participants) are imperative (Table 1). Being a programme delivered by a network of organisations and operating with a variety of audiences, this was critical to the functioning of OPAL. Indeed it's critical for all citizen science projects as they call for the input not simply of both scientists and participants but usually a wide array of other partners too. Firstly, is there enough buy-in from partners Getting sufficient buy-in from all organisations involved can demand considerable effort, time and resources (Table 1) yet failing to get the support from either the authorities informing the project, the information end users, the outreach employees or the participants can build tough working relationships and inadequate outputs.Sis procedures tailored towards the data utilised (Table 1). 1 contributor noted that "it was in reality these very substantial worries about data quality that drove them [practitioners] to be methodologically revolutionary in their method to interpreting, validating and manipulating their data and ensuring that the science becoming made was indeed new, vital and worth everyone's time." In several situations, survey leaders believed very carefully about balancing the wants of participants and information customers. As an example inside the Bugs Count, the initial activity asked the public to classify invertebrates into broad taxonomic groups (which had been less complicated to identify than species) and the second activity asked participants to photograph just six easy-to-identify species. Participants for that reason discovered about what attributes differentiate diverse invertebrate groups whilst collecting useful verifiable info on species distribution (e.g. resulting OPAL tree bumblebee data have been utilised inside a study comparing skilled naturalist and lay citizen science recording ). Data excellent monitoring was carried out to varying degrees between surveys. The Water Survey  as an example, integrated training by Community Scientists, identification quizzes, photographic verification, comparison to professional data and data cleaning tactics. Survey leads on the Air Survey  compared the identification accuracy of novice participants and expert lichenologists and discovered that for particular species of lichen, average accuracy of identification across novices was 90 or extra, nevertheless for other individuals accuracy was as low as 26 . Information with a high level of inaccuracy had been excluded from evaluation and "this, collectively together with the higher degree of participation makes it most likely that results are an excellent reflection of spatial patterns [of pollution] and abundances [of lichens] at a national [England-wide] scale" . For the Bugs Count Survey, details around the accuracy of unique groups of participants was constructed in to the analysis as a weight, to ensure that data from groups (age and experience) that had been on typical more correct, contributed additional towards the statistical model . This exemplifies that if data high quality is becoming tracked, and sampling is properly understood, then aLakemanFraser et al. BMC Ecol 2016, 16(Suppl 1)SPage 66 ofdecision might be produced by the finish user about which datasets are suitable for which purpose.B.