0000000001329040
AUTHOR
Petteri Lehikoinen
Domain‐specific neural networks improve automated bird sound recognition already with small amount of local data
1. An automatic bird sound recognition system is a useful tool for collecting data of different bird species for ecological analysis. Together with autonomous recording units (ARUs), such a system provides a possibility to collect bird observations on a scale that no human observer could ever match. During the last decades, progress has been made in the field of automatic bird sound recognition, but recognizing bird species from untargeted soundscape recordings remains a challenge. 2. In this article, we demonstrate the workflow for building a global identification model and adjusting it to perform well on the data of autonomous recorders from a specific region. We show how data augmentatio…
A Successful Crowdsourcing Approach for Bird Sound Classification
Automated recorders are increasingly used in remote sensing of wildlife, yet automated methods of processing the audio remains challenging. Identifying animal sounds with machine learning provides a solution, but optimizing the models requires annotated training data. Producing such data can require much manual effort, which could be alleviated by engaging masses to contribute to research and share the workload. Birdwatchers are experts on identifying bird vocalizations and form an ideal focal audience for a citizen science project aiming for the required multitudes of annotated avian audio data. For this purpose, we launched a web portal that was targeted and advertised to Finnish birdwatc…
Protected areas enhance expanding populations and mitigate declines on range edges under climate change
Warming climate is changing geographical distributions of species. However, keeping pace with the climate may be complicated. The climate is indeed changing faster than species are capable of following it. Other environmental changes can hamper the ability of species to move if they face difficulties following climatic preferences in a fragmented landscape. This may lead to increased extinction risk especially for species inhabiting high latitudes and altitudes. These species are expected to be particularly exposed to the consequences of climate change due to the lack of space into which they can retreat. Evidence is mounting that this may indeed be the case, since boreal and montane specie…