Cetacean citizen science: Using iNaturalist as a tool to study whales and dolphins DOI Creative Commons
Shem Unger

World Journal of Biology Pharmacy and Health Sciences, Год журнала: 2024, Номер 19(1), С. 458 - 465

Опубликована: Июль 30, 2024

Cetaceans are commonly observed in open water or near shore habitats by citizen scientists, recreational boaters, tourists, and researchers. Sightings representing images with known time location data may include an assortment of behaviors readily visible, can provide distribution for future monitoring, validate beach strandings, highlight localities where species occur. However, to date, there is no assessment across the presence, distribution, behavior North American cetaceans increasingly utilized science application iNaturalist. To this end, short communication presents temporal trends on mortalities, present within USA. These findings iNaturalist as a powerful tool potential app cetacean research environmental management.

Язык: Английский

Integrating cultural dimensions in sperm whale ( Physeter macrocephalus ) conservation: threats, challenges and solutions DOI Creative Commons
Ana Eguiguren, Isabel Cristina Ávila, Sarah L. Mesnick

и другие.

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2025, Номер 380(1925)

Опубликована: Май 1, 2025

Culture-socially transmitted behaviours shared within a community-can influence animal populations' structure, vulnerability and resilience. Clans of sperm whales in the Eastern Tropical Pacific (ETP) exemplify profound culture on these dynamics highlight challenges accounting for conservation efforts. Globally, are classified as vulnerable, ETP whale population has struggled to reach positive growth rate. This stagnation is partly due cumulative anthropogenic threats region, including fishing conflicts, vessel traffic, pollution, deep sea mining, oil gas exploration, climate change. The United Nations Convention Migratory Species adopted Concerted Action 2017, proposing collaborative efforts address cultural dimensions conservation. However, knowledge gaps real-world implementation persist. Here, we review role social transmission shaping behaviour populations, outline current environmental stressors they face ETP, discuss ongoing incorporating into large-scale international Strengthening transnational collaboration capitalizing new technologies efficient analysis can help bridge enhance future research this iconic species.This article part theme issue 'Animal culture: changing world'.

Язык: Английский

Процитировано

6

Automated extraction of right whale morphometric data from drone aerial photographs DOI Creative Commons

Chhandak Bagchi,

Josh Medina,

Duncan J. Irschick

и другие.

Remote Sensing in Ecology and Conservation, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Abstract Aerial photogrammetry is a popular non‐invasive tool to measure the size, body morphometrics and condition of wild animals. While method can generate large datasets quickly, lack efficient processing tools create bottlenecks that delay management actions. We developed machine learning algorithm automatically (body length widths) southern right whales (Eubalaena australis, SRWs) from aerial photographs ( n = 8,958) collected by unmanned vehicles in Australia. Our approach utilizes two Mask R‐CNN detection models to: (i) masks for each whale (ii) estimate points along whale's axis. annotated dataset 468 images containing 638 train our models. To evaluate accuracy approach, we compared model‐generated manual measurements. The influence picture quality (whale posture water clarity) was also assessed. estimates were slightly negatively biased (median error −1.3%), whereas volume had small 6.5%) positive bias. After correcting both biases, resulting mean absolute errors 0.85% (SD 0.75) 6.88% 6.57), respectively. magnitude decreased as increased. When using data quantify intra‐seasonal changes SRW females, obtained similar slope parameter (−0.001843, SE 0.000095) derived measurements (−0.001565, 0.000079). This indicates able accurately capture temporal trends at population level.

Язык: Английский

Процитировано

0

Drones Applied to Cetacean Research: A Case Study of Fin Whales DOI
Eduard Degollada,

Beatriu Tort,

Dorottya Mészáros

и другие.

IntechOpen eBooks, Год журнала: 2025, Номер unknown

Опубликована: Май 21, 2025

The fin whale is the only species regularly found in Mediterranean Sea, with a year around presence. However, aquatic environment and whale’s diving behavior have posed challenges to studying this marine mammal. increasing use of drones cetacean research has significantly enhanced our understanding species. Drones provide ability quickly discreetly fly over whales, minimizing disturbance, while capturing high-quality footage that enables observation their characteristic features used for identification, as well supporting morphometric analysis. Additionally, can assist collecting blow samples guiding vessels closer, more effective approaches conduct biopsies, collect fecal samples, or deploy tagging devices. This technological advancement greatly contributed deeper offering valuable insights into health population.

Язык: Английский

Процитировано

0

Deep Learning for Automated Shark Detection and Biometrics Without Keypoints DOI
Jaden Clark,

Chinmay K Lalgudi,

Mark P. Leone

и другие.

Lecture notes in computer science, Год журнала: 2025, Номер unknown, С. 105 - 120

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

Cetacean citizen science: Using iNaturalist as a tool to study whales and dolphins DOI Creative Commons
Shem Unger

World Journal of Biology Pharmacy and Health Sciences, Год журнала: 2024, Номер 19(1), С. 458 - 465

Опубликована: Июль 30, 2024

Cetaceans are commonly observed in open water or near shore habitats by citizen scientists, recreational boaters, tourists, and researchers. Sightings representing images with known time location data may include an assortment of behaviors readily visible, can provide distribution for future monitoring, validate beach strandings, highlight localities where species occur. However, to date, there is no assessment across the presence, distribution, behavior North American cetaceans increasingly utilized science application iNaturalist. To this end, short communication presents temporal trends on mortalities, present within USA. These findings iNaturalist as a powerful tool potential app cetacean research environmental management.

Язык: Английский

Процитировано

0