Summary
The present report
presents a simple, yet efficient bat monitoring scheme for Central
Espoo (southern Finland), which is based on the efficient use of
ultrasound hand-detectors, well designed point counting network, and
work of experienced bat scientists.
The point counting method (PC) implemented in this
study has been widely used in Europe over the past 20 years. It gives
the best results in northern parts of Europe, especially in towns,
where bat species present can be firmly identified to species level
on most occasions, using only the diagnostic characters of sonar
calls.
In recent years, bat
scientists have made a significant step forward: beginning with the
present report, the sibling species of small Myotis (namely,
brandtii and mystacinus), relatively common in forested
areas of Europe, can be also identified to species level on many
occasions. This has not been possible for decades, making the results
of detector-based bat studies vague. But from now on this is
possible! So I advise to use this unique possibility, and include
similar bat monitoring schemes in bat monitoring programmes of
European countries.
The easiest way to do so is
by contacting the author of this report.
Masing, M. 2022. Bats in Central Espoo in August 2021. – Sicista PDF. 107 pp.
Summary. In August 2021, a study on bat species and their
habitats was carried out in Espoo and nearby Kattila (southern
Finland), using Pettersson D240x ultrasound detector and visual
observation. This study proposes an easy bat monitoring scheme for
Espoo area, in which detector-based bat counts should be regularly
carried out at selected sites. As a result of this monitoring work,
the knowledge about bats and their habitats becomes available to
people, which then allows them to efficiently protect bats and their
habitats. An efficient and easy-to-use detector-based point counting
method to monitor bat populations, implemented in this study, is
advised to be used widely all over Europe.
Masing, M. 2021. Nahkhiirte inventuur Valgevälja metsas 2021. aasta juulis (looduskaitselise uurimistöö kokkuvõte). – Sicista PDF. Tartu, 20 lk.
Masing, M. 2020c. Nahkhiirte uuring Lääne-Nigula piirkonnas 2020. aastal. – Sicista PDF. Tartu, 44 lk.
Masing, M. & Piiskoppel, T. 2020. Nahkhiirte uuring Piha tuulepargi piirkonnas 2020. aastal. – Sicista PDF. Tartu, 26 lk.
Masing, M. 2019. Nahkhiirte detektor-uuring Jägala jõe alamjooksu piirkonnas 2018. aasta suvel (looduskaitselise uurimistöö kokkuvõte). Sicista Arenduskeskus MTÜ. 118 lk. 10.3.2019 (Tellija: Jõelähtme Vallavalitsus)
Masing, M. 2018b. Nahkhiirte inventuur Mõigu kalmistu piirkonnas 2018. aasta suvel (looduskaitselise uurimistöö kokkuvõte). Sicista Arenduskeskus MTÜ. Tartu, 33 lk. (Tellija: Tallinna Keskkonnaamet)
Masing, M. 2017a. Bats of Högnäs – happy and free. Sicista Videos.
Masing, M. 2017b. Bats of Estonia and North Espoo (PowerPoint presentation, Espoo, 18.5.2017).
