{"id":36624,"date":"2026-09-10T16:41:00","date_gmt":"2026-09-10T20:41:00","guid":{"rendered":"https:\/\/www.ecoticias.com\/en\/?p=36624"},"modified":"2026-09-10T07:22:59","modified_gmt":"2026-09-10T11:22:59","slug":"a-tiny-endangered-fox-is-surviving-inside-california-solar-farms-and-one-narrow-fence-gap-may-explain-why","status":"publish","type":"post","link":"https:\/\/www.ecoticias.com\/en\/a-tiny-endangered-fox-is-surviving-inside-california-solar-farms-and-one-narrow-fence-gap-may-explain-why\/36624\/","title":{"rendered":"A tiny endangered fox is surviving inside California solar farms, and one narrow fence gap may explain why"},"content":{"rendered":"\n

An endangered fox<\/a>, weighing just 5 pounds, has found its refuge amidst the arid grassland of California, on a site created to generate electricity. While monitoring San Joaquin kit foxes at Topaz Solar Farms and California Valley Solar Ranch, investigators found that those foxes living inside the installations survived, reproduced and kept body mass at basically equal levels than the animals which lived on open lands nearby.<\/p>\n\n\n\n

The fence was the most striking part of this. The fence’s openings were intentionally sized for both kit foxes and other tiny animals, and at the same time, prevented bigger predators to pass through. This effectively transformed rows of solar panels<\/a> into a limited haven, rather than a protected industrial area. But, this was not a cost-free benefit for solar power, because this outcome deeply relied on both a design which is wildlife-friendly, and a detailed maintenance.<\/p>\n\n\n\n

A small fox with practically nowhere else to go<\/h2>\n\n\n\n

Only found in central California, the San Joaquin kit fox<\/a> is the smallest animal of its kind in North America. Its habitat has been reduced by around 95%, according to scientists, while federal biologists estimate their overall population at around 3,000 animals. This is why the kit fox is listed as endangered since 1967 by the federal government.<\/p>\n\n\n\n

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Suited for living in a hot and dry habitat, the fox rests underground while the Sun is out, waiting for the dark to go out to hunt, with a diet which consists of mice, rabbits, kangaroo rats, birds and insects. When its environment begins to cool off at sunset, they may move around different dens, both searching for food and looking to evade coyotes and other beasts of prey.<\/p>\n\n\n\n

\"Endangered
The San Joaquin kit fox is one of North America’s smallest canids and survives only in California’s Central Valley and surrounding areas. Habitat loss has left the endangered species dependent on an increasingly fragmented landscape.<\/figcaption><\/figure>\n\n\n\n

Testing the solar hideout<\/h2>\n\n\n\n

Can solar farms actually be a proper home? Investigators undertook different three-year analyses at both Topaz and California Valley Solar Ranch, between 2014 and 2017. At Topaz, they equipped 52 foxes with tracking collars<\/a>, while at California Valley, 50 foxes were fitted with them, later analyzing the data with that of foxes living in a reference area nearby.<\/p>\n\n\n\n

Annual survival rate for foxes in the reference site was 49%, while for those living at Topaz reached 65%, while reproductive success was 88.9% and 100% respectively. The survival figures were 66% and 76% at California Valley, and reproductive success was at 86.7% on both sites. While scientists could not claim the panels effectively saved the foxes, given that the survival rate differences were insignificant from a statistical point of view, it was evident that, at the least, these animals were not worse off than the ones in the reference site.<\/p>\n\n\n\n

A barrier that acts as a filter for wildlife<\/h2>\n\n\n\n

The majority of complexes use fences made of chain-link, at between 4.7 and 5.9 inches above the ground. This creates a space which kit foxes and other small prey could cross through. Fences at California Valley have openings of around 5.9 inches, while a bottom rail was used at Topaz, looking to avoid larger animals to dig under the barrier.<\/p>\n\n\n\n

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Read More: Oregon built a wind, solar and battery site for 100,000 homes, but a 10-ounce endangered squirrel still decides when crews can dig<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n

The risk shifted among the installation thanks to that simple design. According to researchers, most of the fox deaths happened outside the fenced areas, and at the same time, there were no reported deaths linked to either the solar construction or operations on the reviewed complexes. Additionally, the panels<\/a> may have also offered cover from golden eagles, an important thing for a 5-pound fox.<\/p>\n\n\n\n

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