{"id":1573,"date":"2019-05-22T10:00:02","date_gmt":"2019-05-22T16:00:02","guid":{"rendered":"https:\/\/bouldercountyopenspace.org\/i\/?p=1573"},"modified":"2019-05-22T10:00:04","modified_gmt":"2019-05-22T16:00:04","slug":"frogs-the-other-springtime-singers","status":"publish","type":"post","link":"https:\/\/bouldercountyopenspace.org\/i\/wildlife\/frogs-the-other-springtime-singers\/","title":{"rendered":"Frogs: The Other Springtime Singers"},"content":{"rendered":"\n

The life zones in Boulder County foster high diversity in\nwildlife. A spring walk in the evening or a summer walk in the mountains brings\na symphony of frog calls as the males congregate in pools to attract the\nfemales. This article illustrates the environmental adaptations of two frogs\nfound in Boulder County, the boreal chorus frog and the northern leopard frog.\nChorus frogs are less than half the size of the northern leopard frog, which\ncan reach 10 cm, and have quite different skin markings although both can show\ngreen to tan coloration that affords great camouflage. <\/p>\n\n\n\n

Survival Strategies<\/h2>\n\n\n\n

Frog life cycles are remarkable because of the dramatic\nchanges in form between eggs and adult. Egg clutches are larger, 3,000 to 5,000\nper clutch for the leopard frog, compared with 300 for the chorus frog. The\nnorthern leopard frog wedges the egg mass underwater between vegetation stalks,\nwhereas chorus frogs deposit only thin strands of a few eggs on the underside\nof leaves or around submerged stems. The gelatinous eggs deposited by the\nfemales, once fertilized, develop into the fish-like tadpole that swims through\ntail undulations. Oxygen in the water is obtained through the tadpole\u2019s gills.\nThe tadpole\u2019s food includes algae that grow in the water. These larvae feed so\naggressively that they regulate algal blooms helping maintain water health. <\/p>\n\n\n\n

\n

Want To Learn More?<\/h2>\n

Websites like uOttawa Nature Watch<\/a> aid in distinguishing frogs by their calls.<\/p>\n

A video recording at CaliforniaHerps.com<\/a> illustrates vocal interactions between male chorus frogs with their metallic clicking calls, as well as the \u201csnoring\u201d call of the northern leopard frog.<\/p>\n<\/blockquote>\n

Maturation into an adult involves changes in respiration to\ninclude both lung activity and exchange of gases through the skin. Skin\nmoisture is important in this process, and the permeability of the skin is also\nthe way the frog takes in water because frogs do not drink. Adult frogs possess\nmodified teeth-like structures to hold rather than chew or tear their prey. The\ncarnivorous adults prefer insects (mosquitos, yum!) along with earthworms,\nsmall minnows, and spiders. Food is caught by the sticky extensible tongue and\nswallowed whole with inward movement of the large eyes physically forcing the\nprey into the digestive tract. These eyes located high on the head maximize\ndetection of prey and predators with almost 360 degree visibility. A third\neyelid protects the eyes providing clear vision as they stay open underwater. <\/p>\n\n\n\n

The adult northern leopard frog requires three different\nhabitats to complete its life cycle: shallow water for breeding, deep, aerated\nwater that permits overwintering without freezing, and access to upland with\nnearby water sources in the summer when travel between 0.3 to 5 kilometers\noccurs. In contrast, the near-pond site is adequate for the chorus frog throughout\nits life. Impressively, the chorus frog survives winter by slowing the heart\nand making antifreeze for its blood to become completely frozen under natural\nshelters in its pond habitat<\/p>\n\n\n\n

Bullfrog Bullies<\/h2>\n\n\n\n

In spite of their adaptations, native frog populations are under challenge by the nonnative bullfrogs, which were imported as food and pets, but have spread into the wild. The larger bullfrog adults include smaller native frogs in their diet; even the bullfrog tadpoles out-compete the natives for their food, the algae. Bullfrogs can also have higher immunity to infections that easily spread to more sensitive frog populations.<\/p>\n\n\n\n

In Colorado, the decline in the northern leopard frog\npopulations through the varied factors has resulted in its listing as a Tier 1 Species\nof Greatest Conservation Need by the Colorado Parks and Wildlife. Efforts in\nBoulder County in the refurbishing of riparian areas impacted by the 2013 flood\ninclude landscaping to boost native frog habitat.  For instance, Webster Pond at Pella Crossing\nis redesigned as a native fish refugia with only small native nongame fish,\nthat won\u2019t prey on Northern leopard frogs or their egg masses. Keeping the\nbalance of nature to include the native frogs in our open space landscape\nclearly is a challenge, but essential so that their chorus can continue to\nwelcome the return of springtime.<\/p>\n","protected":false},"excerpt":{"rendered":"

The life zones in Boulder County foster high diversity in wildlife. A spring walk in the evening or a summer walk in the mountains brings a symphony of frog calls as the males congregate in pools to attract the females. This article illustrates the environmental adaptations of two frogs found in Boulder County, the boreal […]<\/p>\n","protected":false},"author":2,"featured_media":1574,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[50],"class_list":["post-1573","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wildlife","tag-summer-2019"],"yoast_head":"\nFrogs: The Other Springtime Singers - Images<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bouldercountyopenspace.org\/i\/wildlife\/frogs-the-other-springtime-singers\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Frogs: The Other Springtime Singers - Images\" \/>\n<meta property=\"og:description\" content=\"The life zones in Boulder County foster high diversity in wildlife. 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With camouflage coloring of greens and browns, they blend into their surroundings and try to avoid getting snatched up and eaten. Usually quiet and alone, they hop and hide and look\u2026","rel":"","context":"In "Nature Detectives"","block_context":{"text":"Nature Detectives","link":"https:\/\/bouldercountyopenspace.org\/i\/category\/nature-detectives\/"},"img":{"alt_text":"Nature Detectives Frogs","src":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2015\/03\/nd-frogs.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2015\/03\/nd-frogs.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2015\/03\/nd-frogs.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":1598,"url":"https:\/\/bouldercountyopenspace.org\/i\/research\/bullfrogs\/","url_meta":{"origin":1573,"position":1},"title":"Research: Bullfrogs","author":"Staff","date":"08\/30\/2019","format":false,"excerpt":"The Boulder County Parks & Open Space Department offers grants for research on county open space lands each year. All proposals are reviewed by a team of resource specialists, and awarded research projects are monitored during their activities on open space. The following is a summary of a 2018 study\u2026","rel":"","context":"In "Research"","block_context":{"text":"Research","link":"https:\/\/bouldercountyopenspace.org\/i\/category\/research\/"},"img":{"alt_text":"bullfrog","src":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2019\/08\/bullfrog.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2019\/08\/bullfrog.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2019\/08\/bullfrog.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2019\/08\/bullfrog.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2019\/08\/bullfrog.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":2144,"url":"https:\/\/bouldercountyopenspace.org\/i\/wildlife\/a-chorus-of-frogs\/","url_meta":{"origin":1573,"position":2},"title":"A Chorus of Frogs","author":"Staff","date":"03\/01\/2022","format":false,"excerpt":"Years ago, as I wandered Walden Ponds Wildlife Habitat in spring, the seething energy of life after winter seemed intensely joyous. That walk inspired a kids\u2019 poem. My delight never waned. There\u2019s a magic in the first signs of spring, a sense of gratitude, and relief at the renewal ahead.\u2026","rel":"","context":"In "Wildlife"","block_context":{"text":"Wildlife","link":"https:\/\/bouldercountyopenspace.org\/i\/category\/wildlife\/"},"img":{"alt_text":"Chorus frog","src":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2022\/03\/chorus-frog.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2022\/03\/chorus-frog.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2022\/03\/chorus-frog.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2022\/03\/chorus-frog.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2022\/03\/chorus-frog.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2022\/03\/chorus-frog.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1976,"url":"https:\/\/bouldercountyopenspace.org\/i\/nature-detectives\/toads\/","url_meta":{"origin":1573,"position":3},"title":"Toads Have Warts… And That’s Good!","author":"Staff","date":"06\/01\/2021","format":false,"excerpt":"Warts on your skin are not good. Warts can occur when a virus sneaks into human skin through a cut. A medicine gets rid of the virus and then it\u2019s good-bye ugly wart. Toad warts look slightly like human warts, but toad warts and people warts are not one bit\u2026","rel":"","context":"In "Nature Detectives"","block_context":{"text":"Nature Detectives","link":"https:\/\/bouldercountyopenspace.org\/i\/category\/nature-detectives\/"},"img":{"alt_text":"Nature Detectives","src":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2021\/06\/nd.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2021\/06\/nd.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2021\/06\/nd.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2021\/06\/nd.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2021\/06\/nd.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2021\/06\/nd.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":969,"url":"https:\/\/bouldercountyopenspace.org\/i\/research\/herpetofauna-hibernacula\/","url_meta":{"origin":1573,"position":4},"title":"Herpetofauna Assessment & Mapping of Hibernacula","author":"Staff","date":"08\/26\/2016","format":false,"excerpt":"The Boulder County Parks and Open Space Department offers grants for research on county open space lands each year. All proposals are reviewed by a team of resource specialists, and awarded research projects are monitored during their activities on open space. The following is a summary of a 2015 study\u2026","rel":"","context":"In "Research"","block_context":{"text":"Research","link":"https:\/\/bouldercountyopenspace.org\/i\/category\/research\/"},"img":{"alt_text":"Young Bull Snake at Sunrise","src":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2016\/08\/Young-Bull-Snake-at-Sunrise-Rabbit-Mountain.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2016\/08\/Young-Bull-Snake-at-Sunrise-Rabbit-Mountain.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2016\/08\/Young-Bull-Snake-at-Sunrise-Rabbit-Mountain.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2016\/08\/Young-Bull-Snake-at-Sunrise-Rabbit-Mountain.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2016\/08\/Young-Bull-Snake-at-Sunrise-Rabbit-Mountain.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2016\/08\/Young-Bull-Snake-at-Sunrise-Rabbit-Mountain.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1693,"url":"https:\/\/bouldercountyopenspace.org\/i\/volunteer\/volunteers-get-it-done\/","url_meta":{"origin":1573,"position":5},"title":"How Does It All Get Done? Volunteers!","author":"Staff","date":"02\/28\/2020","format":false,"excerpt":"Have you ever wondered how a staff of 129 can manage 100,000 acres of open space? The answer is volunteers! People who participate in volunteer work projects are integral to helping the department reach its goals. The volunteer work project team aims to offer a variety of projects all over\u2026","rel":"","context":"In "Volunteer"","block_context":{"text":"Volunteer","link":"https:\/\/bouldercountyopenspace.org\/i\/category\/volunteer\/"},"img":{"alt_text":"volunteers","src":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2020\/02\/volunteers.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2020\/02\/volunteers.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2020\/02\/volunteers.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2020\/02\/volunteers.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2020\/02\/volunteers.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/bouldercountyopenspace.org\/i\/wp-content\/uploads\/2020\/02\/volunteers.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/posts\/1573","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/comments?post=1573"}],"version-history":[{"count":3,"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/posts\/1573\/revisions"}],"predecessor-version":[{"id":1577,"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/posts\/1573\/revisions\/1577"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/media\/1574"}],"wp:attachment":[{"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/media?parent=1573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/categories?post=1573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bouldercountyopenspace.org\/i\/wp-json\/wp\/v2\/tags?post=1573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}