{"id":2278,"date":"2025-09-30T14:10:49","date_gmt":"2025-09-30T14:10:49","guid":{"rendered":"https:\/\/mosquizen.com\/climate-change-and-mosquitoes-in-the-balearic-islands-why-new-species-are-settling-in\/"},"modified":"2026-02-07T13:33:33","modified_gmt":"2026-02-07T13:33:33","slug":"climate-change-and-mosquitoes-in-the-balearic-islands-why-new-species-are-settling-in","status":"publish","type":"post","link":"https:\/\/mosquizen.com\/en\/climate-change-and-mosquitoes-in-the-balearic-islands-why-new-species-are-settling-in\/","title":{"rendered":"Climate change and mosquitoes in the Balearic Islands: why new species are settling in"},"content":{"rendered":"\n

In the Balearic<\/strong> Islands, winters are getting milder and milder – average winter temperatures range from 8\u00b0C to 15\u00b0C<\/strong>, enabling some mosquitoes<\/strong> to survive and even be active longer than in the past. Climate change<\/strong> is extending the mosquito<\/strong> season on the Mediterranean coast by up to eight months a year, according to some regional surveys – a fertile breeding ground for invasive species such as Aedes albopictus<\/em>. With this in mind, it is crucial to understand how the changing climate<\/strong> in the Balearic Islands<\/strong> is creating ideal conditions for new mosquito<\/strong> species, and what this means for public health, travellers and the environment. <\/p>\n\n

A warming Mediterranean climate: what ecological effects are favourable to mosquitoes?<\/h2>\n\n

The Balearic Islands<\/strong> have a Mediterranean climate, with mild winters, hot but temperate summers, and rainfall concentrated in autumn and winter. In winter, minimum temperatures are often around 8-10\u00b0C on Ibiza and Menorca, rising to 14-16\u00b0C during the day. <\/p>\n\n

This mild winter extends the survival of mosquito<\/strong> eggs, larvae and adults, which would normally be eliminated by more severe cold. Daytime temperatures reach 15-17\u00b0C even in January-February on Mallorca and Ibiza, allowing some less resistant species to persist. <\/p>\n\n

At the same time, moderate winter rainfall and high hygrometry create more micro-sites favorable to larval development. Lastly, the gradual warming of the Mediterranean climate is reflected in higher minimum night-time temperatures, reducing frost periods and winter mosquito<\/strong> mortality. <\/p>\n\n

This combination – mild winters, rain and humidity – widens the window during which mosquitoes<\/strong> can survive and begin their activity, paving the way for the spread of invasive species such as the tiger mosquito<\/strong>.<\/p>\n\n

Find out more: Mosquitoes in winter on the Balearic Islands<\/a><\/p>\n\n

\"mosquitoes<\/figure>\n\n

What species are present in the Balearic Islands today? Reliable inventory and trends <\/h2>\n\n

The latest comprehensive inventory of the Balearic<\/strong> mosquito<\/strong> fauna reveals the presence of 23 taxa reported in the literature, of which 22 are native or historically present, and one active invasive species. In 2019, a field survey in 32 municipalities identified 19 species, including three reported for the first time in the archipelago. <\/p>\n\n

The most common species include :<\/p>\n\n