Monica Rteramosa was In the middle of changing the batteries of the tape recorded when I heard Bilberd for the first time. Standing on the floor of a forest, I looked at the trees, and wiped out of their source A strong metal soundSearch for the bird for half an hour without success. Bellbird sings the heads of trees as it is visible to its peers, but it is not visible to that below. However, Retamosa smiled: She is interested in ecosystems in the Amistosa biological corridor in Costa Rica by listening to it.
In nature, living organisms use sound almost everything. They make calls to attract their colleagues, communicate identities, warn of dangers, direct the road, and help hunting or defense. For decades, the researchers tracked species with registrar at hand, and they still do so, although the registration devices are increasingly used as well. The study of voices made by living organisms is known as Biomed horses. Retamosa has done this work for 10 years.
Using vital audio recordings, studies have shown that some birds scream loudly to make themselves audible in cities and that spawning of marine turtles continues from the nest to coordinate hatching. And when the vital horses are combined with other sounds – those who made human beings, as well as natural landscape sounds, such as surfing in the sea – it is possible to explain the deeper ecological meaning. It becomes possible to monitor changes in biological diversity, discovery threats, and measure the effectiveness of preservation strategies. This broader sound analysis is known as Ecoacoustics – which is exactly the work in Costa Rica.
Retamosa works for 20 years at the National University of Costa Rica, at the International Institute for Wildlife Conservation and Life Management. It uses vital and environmentalist holes to investigate the voices of this small country in Central America, which hosts more than half a million species.
“The voices have been forgotten from the point of view,” says Rteramosa. “Most of the time, we hear more than we see. It is likely that when any system disorder occurs, we can discover it sooner than the sound, or its absence, more than other factors.”
The development of automated records has made a revolution in biotechnology and the environment. Now, research groups can suspend sensors that record excerpts today for several months at one time without interfering in wildlife. Retamosa loves this strategy because it is non -invisible for animals, which makes it easy to get ears in large areas and hard -to -reach places, and sometimes help discover mysterious species.
Although it prefers monitoring ecosystems from a distance, Retamosa still has to deepen the forest to create recorders. Visits to this field great, but do not slip on Sunday. Miles were raised through clay and branches, along with her colleagues Jimmy Parantis and Randal Jiminies. They rose and below endless slopes. Once, she fell and broke her ribs. But the work does not end with the installation: they must return to change the batteries and memory cards. In other countries, they use solar panels and the Internet to receive data in actual time; In the dark rain forests in Costa Rica, it is still by hand.
