Rushikulya rookery on India's east coast is one of the largest mass nesting grounds for Olive ridley sea turtles. This annual mass nesting event (arribada) is driven by sensitively interwound geo-ecological cues, which often gets disrupted by various anthropogenic impacts and extreme atmospheric events such as tropical cyclones. For the very first time, we investigated the effect of a highly untimely, category five cyclone Fani (made landfall on 03 May 2019, summer as opposed to usual landfall time autumn) on Rushikulya rookery and attempted to correlate mass nesting behaviour of Olive ridley turtle using remote sensing and GIS technology. Approximately 94% of the shoreline along the Rushikulya rookery receded 100 m inward aftermath of the cyclone Fani (2019) that resulted in ‘no mass nesting’ in that year. The most prominent feature was the fragmentation of the spit that seems to be a critical habitat and protective structure for successful mass nesting. The next year (2020), saw a highly successful mass nesting due to the spit's natural re-construction and possibly cyclone-driven nutrient enrichment. Since very severe but untimely cyclones are predicted to increase due to climate change, this study will act as the first baseline information on the likely impact of such extreme weather events on migratory marine turtles in India.

位于印度东海岸的 Rushikulya 栖息地是 Oliveridley 海龟最大的群体筑巢地之一。这一年度大规模筑巢事件 (arribada) 是由敏感的地质生态线索驱动的，这些线索经常受到各种人为影响和热带气旋等极端大气事件的干扰。我们第一次调查了非常不合时宜的 5 级气旋 Fani（于 2019 年 5 月 3 日登陆，夏季与通常的秋季登陆时间相反）对 Rushikulya 栖息地的影响，并试图将橄榄雷利龟的大规模筑巢行为联系起来使用遥感和地理信息系统技术。Rushikulya 栖息地沿线约 94% 的海岸线在飓风 Fani (2019) 之后向内后退 100 m，导致当年“没有大规模筑巢”。最突出的特征是唾液的破碎，这似乎是成功大规模筑巢的关键栖息地和保护结构。第二年（2020 年），由于吐痰的自然重建和可能是旋风驱动的营养丰富，人们看到了非常成功的大规模筑巢。由于气候变化预计会增加非常严重但不合时宜的气旋，因此本研究将作为此类极端天气事件对印度迁徙海龟的可能影响的第一个基线信息。