AnaBat: Bat detector - passive monitoring
Passive monitoring involves using the bat detector in a fixed location as a data logger, to record bat calls without human interaction. This is ideal for the welfare of disturbance-sensitive species, and also reduces the effort for the surveyor. It can be used for one night, a week, month or years, depending on the power source used.
The AnaBat™ Detectors are the industry standard for use in passive monitoring applications because of the power and data sample rate efficiencies. The AnaBat™ SD2 detector is useful for a wide range of detection studies, including passive monitoring and Titley Scientific is proud to have two new detectors which are specifically designed for passive monitoring. The AnaBat™ Express designed for user-friendly deployment on short term monitoring and the AnaBat™ Roost Logger designed for long term monitoring at roosts. Both of these units are in rugged, weather proof cases for easy and convenient deployments.
Passive monitoring is ideal for:
- Temporal emphasis ie. when do bats use a small sampled space
- Long term studies which can sample high temporal variability of bat activity
- Multiple sites can be sampled to compare habitats
- Rare species
- Hard-to-detect species
- Hard-to-identify species
- Potentially massive sampling effort, help enhances probability of detecting
- Low labour costs for sampling effort
- Can be used as an adjunct to active monitoring – covers whole night
- Environmental impact assessments
Devices for passive monitoring:
- Microphones: All three detectors use their own microphones, with different characteristics. The SD2 and Express have removable microphones, which can be mounted separately using an extension cable. The Roost Logger has a fixed microphone.
- Memory cards: CF Card for SD2 or SD Card for Express and Roost Logger. Cards up to 32 GB can be used.
- Memory card reader: Suitable for both SD and CF Cards. Card readers vary greatly in quality, but the ones supplied by Titley Scientific have proven reliable.
- AnaBat Equalizer: Used to equalize the sensitivities of
- Power options: The SD2 and Express detectors can be run from 4 x AA rechargeable batteries. The Express will last approximately 14 nights whilst the SD2 will last approximately 2 - 3 nights). The SD2 can also be run off external 12 volt battery, and/or a solar panel/regulator for longer recording periods. The Roost Logger runs on 4 D-Cell batteries for up to 8 weeks 24 hours a day.