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A citizen science approach to long‐term monitoring of humpback whales ( Megaptera novaeangliae ) off Sydney, Australia
Marine Mammal Science ( IF 2.3 ) Pub Date : 2020-04-01 , DOI: 10.1111/mms.12651
Vanessa Pirotta 1 , Wayne Reynolds 2 , Geoffrey Ross 3 , Ian Jonsen 1 , Alana Grech 4 , David Slip 1, 5 , Robert Harcourt 1
Affiliation  

The Cape Solander Whale Migration Study is a citizen science project that annually counts northward migrating humpback whales (Megaptera novaeangliae) off Cape Solander, Sydney, Australia. Dedicated observers have compiled a 20-year data set (1997-2017) of shore-based observations from Cape Solander's high vantage point. Using this long-term data set collected by citizen scientists, we sought to estimate the humpback whale population trend as it continues to recover postexploitation. We estimated an exponential growth rate of 0.099 (95% CI = 0.079-0.119) using a generalized linear model, based on observer effort (number of observation days) and number of whales observed, equating to 10% per annum growth in sightings since 1997. We found that favorable weather conditions for spotting whales off Cape Solander consisted of winds <30 km/hr from a southerly through a north westerly direction. Incidental observations of other cetacean species included the endangered blue whale (Balaenoptera musculus) and data deficient species such as killer whales (Orcinus orca) and false killer whales (Pseudorca crassidens). Citizen science-based studies can provide a cost-effective approach to monitoring wildlife over the time necessary to detect change in a population. Information obtained from citizen science projects like this may help inform policy makers responsible for State and Federal protection of cetaceans in Australian waters and beyond.

中文翻译:

对澳大利亚悉尼近海座头鲸 ( Megaptera novaeangliae ) 进行长期监测的公民科学方法

索兰德角鲸鱼迁徙研究是一项公民科学项目,每年对澳大利亚悉尼索兰德角附近向北迁徙的座头鲸 (Megaptera novaeangliae) 进行计数。专门的观察​​员从索兰德角的高处收集了 20 年的海岸观测数据(1997-2017)。使用公民科学家收集的这个长期数据集,我们试图估计座头鲸种群数量趋势,因为它在开发后继续恢复。我们使用广义线性模型估计指数增长率为 0.099(95% CI = 0.079-0.119),基于观察者的努力(观察天数)和观察到的鲸鱼数量,相当于自 1997 年以来目击事件的年增长率为 10% . 我们发现在索兰德角附近发现鲸鱼的有利天气条件包括风< 每小时 30 公里,从南风到西北风。对其他鲸类物种的偶然观察包括濒临灭绝的蓝鲸 (Balaenoptera musculus) 和数据不足的物种,如虎鲸 (Orcinus orca) 和假虎鲸 (Pseudorca crassidens)。基于公民科学的研究可以提供一种具有成本效益的方法来监测野生动物在检测种群变化所需的时间内。从此类公民科学项目中获得的信息可能有助于为负责州和联邦保护澳大利亚水域及其他地区的鲸类动物的政策制定者提供信息。对其他鲸类物种的偶然观察包括濒临灭绝的蓝鲸 (Balaenoptera musculus) 和数据不足的物种,如虎鲸 (Orcinus orca) 和假虎鲸 (Pseudorca crassidens)。基于公民科学的研究可以提供一种具有成本效益的方法来监测野生动物在检测种群变化所需的时间内。从此类公民科学项目中获得的信息可能有助于为负责州和联邦保护澳大利亚水域及其他地区的鲸类动物的政策制定者提供信息。对其他鲸类物种的偶然观察包括濒临灭绝的蓝鲸 (Balaenoptera musculus) 和数据不足的物种,如虎鲸 (Orcinus orca) 和假虎鲸 (Pseudorca crassidens)。基于公民科学的研究可以提供一种具有成本效益的方法来监测野生动物在检测种群变化所需的时间内。从此类公民科学项目中获得的信息可能有助于为负责州和联邦保护澳大利亚水域及其他地区的鲸类动物的政策制定者提供信息。
更新日期:2020-04-01
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