{"id":91446,"date":"2025-06-01T10:56:47","date_gmt":"2025-06-01T10:56:47","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91446"},"modified":"2025-06-01T10:56:47","modified_gmt":"2025-06-01T10:56:47","slug":"due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/","title":{"rendered":"Due to some reasons, if there is a huge fall in the population of spec"},"content":{"rendered":"<p>Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence\/consequences ?<\/p>\n<ul>\n<li>1. Pollination of some plants could be adversely affected.<\/li>\n<li>2. There could be a drastic increase in the fungal infections of some cultivated plants.<\/li>\n<li>3. It could lead to a fall in the population of some species of wasps, spiders and birds.<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below :<\/p>\n<p>[amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;2 and 3 only&#8221; option3=&#8221;1 and 3 only&#8221; option4=&#8221;1, 2 and 3&#8243; correct=&#8221;option3&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC IAS &#8211; 2017<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-ias-2017.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-ias-2017\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nStatement 1 is correct. Butterflies are important pollinators for many flowering plants. A significant decline in their population would directly reduce the pollination services they provide, adversely affecting the reproduction of plants that rely on them.<br \/>\nStatement 2 is incorrect. A fall in the butterfly population is unlikely to cause a drastic increase in fungal infections of cultivated plants. Fungal infections are typically influenced by factors like weather conditions, soil health, plant susceptibility, and the presence of fungal spores, not directly by butterfly populations. While butterfly larvae are herbivores, their impact on plant health is different from fungal pathogens.<br \/>\nStatement 3 is correct. Butterflies, in their various life stages (egg, larva\/caterpillar, pupa, adult), serve as a food source for a variety of predators, including insects like wasps and spiders, and numerous bird species. A substantial decrease in the butterfly population would reduce the food availability for these predators, potentially leading to a decline in their populations due to starvation or reduced reproductive success.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\n&#8211; Butterflies act as pollinators and are part of the food chain.<br \/>\n&#8211; Changes in prey population can impact predator populations.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nButterflies are often considered indicators of ecosystem health. Their decline can signal broader environmental issues such as habitat loss, pesticide use, and climate change. Conserving butterfly populations is important for biodiversity and ecosystem services like pollination.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence\/consequences ? 1. Pollination of some plants could be adversely affected. 2. There could be a drastic increase in the fungal infections of some cultivated plants. 3. It could lead to a fall &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Due to some reasons, if there is a huge fall in the population of spec\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/#more-91446\">Detailed Solution<span class=\"screen-reader-text\">Due to some reasons, if there is a huge fall in the population of spec<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1092],"tags":[1101,1367,1136],"class_list":["post-91446","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1101","tag-ecology","tag-environment-and-ecology","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Due to some reasons, if there is a huge fall in the population of spec<\/title>\n<meta name=\"description\" content=\"Statement 1 is correct. Butterflies are important pollinators for many flowering plants. A significant decline in their population would directly reduce the pollination services they provide, adversely affecting the reproduction of plants that rely on them. Statement 2 is incorrect. A fall in the butterfly population is unlikely to cause a drastic increase in fungal infections of cultivated plants. Fungal infections are typically influenced by factors like weather conditions, soil health, plant susceptibility, and the presence of fungal spores, not directly by butterfly populations. While butterfly larvae are herbivores, their impact on plant health is different from fungal pathogens. Statement 3 is correct. Butterflies, in their various life stages (egg, larva\/caterpillar, pupa, adult), serve as a food source for a variety of predators, including insects like wasps and spiders, and numerous bird species. A substantial decrease in the butterfly population would reduce the food availability for these predators, potentially leading to a decline in their populations due to starvation or reduced reproductive success. - Butterflies act as pollinators and are part of the food chain. - Changes in prey population can impact predator populations.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Due to some reasons, if there is a huge fall in the population of spec\" \/>\n<meta property=\"og:description\" content=\"Statement 1 is correct. Butterflies are important pollinators for many flowering plants. A significant decline in their population would directly reduce the pollination services they provide, adversely affecting the reproduction of plants that rely on them. Statement 2 is incorrect. A fall in the butterfly population is unlikely to cause a drastic increase in fungal infections of cultivated plants. Fungal infections are typically influenced by factors like weather conditions, soil health, plant susceptibility, and the presence of fungal spores, not directly by butterfly populations. While butterfly larvae are herbivores, their impact on plant health is different from fungal pathogens. Statement 3 is correct. Butterflies, in their various life stages (egg, larva\/caterpillar, pupa, adult), serve as a food source for a variety of predators, including insects like wasps and spiders, and numerous bird species. A substantial decrease in the butterfly population would reduce the food availability for these predators, potentially leading to a decline in their populations due to starvation or reduced reproductive success. - Butterflies act as pollinators and are part of the food chain. - Changes in prey population can impact predator populations.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:56:47+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Due to some reasons, if there is a huge fall in the population of spec","description":"Statement 1 is correct. Butterflies are important pollinators for many flowering plants. A significant decline in their population would directly reduce the pollination services they provide, adversely affecting the reproduction of plants that rely on them. Statement 2 is incorrect. A fall in the butterfly population is unlikely to cause a drastic increase in fungal infections of cultivated plants. Fungal infections are typically influenced by factors like weather conditions, soil health, plant susceptibility, and the presence of fungal spores, not directly by butterfly populations. While butterfly larvae are herbivores, their impact on plant health is different from fungal pathogens. Statement 3 is correct. Butterflies, in their various life stages (egg, larva\/caterpillar, pupa, adult), serve as a food source for a variety of predators, including insects like wasps and spiders, and numerous bird species. A substantial decrease in the butterfly population would reduce the food availability for these predators, potentially leading to a decline in their populations due to starvation or reduced reproductive success. - Butterflies act as pollinators and are part of the food chain. - Changes in prey population can impact predator populations.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/","og_locale":"en_US","og_type":"article","og_title":"Due to some reasons, if there is a huge fall in the population of spec","og_description":"Statement 1 is correct. Butterflies are important pollinators for many flowering plants. A significant decline in their population would directly reduce the pollination services they provide, adversely affecting the reproduction of plants that rely on them. Statement 2 is incorrect. A fall in the butterfly population is unlikely to cause a drastic increase in fungal infections of cultivated plants. Fungal infections are typically influenced by factors like weather conditions, soil health, plant susceptibility, and the presence of fungal spores, not directly by butterfly populations. While butterfly larvae are herbivores, their impact on plant health is different from fungal pathogens. Statement 3 is correct. Butterflies, in their various life stages (egg, larva\/caterpillar, pupa, adult), serve as a food source for a variety of predators, including insects like wasps and spiders, and numerous bird species. A substantial decrease in the butterfly population would reduce the food availability for these predators, potentially leading to a decline in their populations due to starvation or reduced reproductive success. - Butterflies act as pollinators and are part of the food chain. - Changes in prey population can impact predator populations.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:56:47+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/","url":"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/","name":"Due to some reasons, if there is a huge fall in the population of spec","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:56:47+00:00","dateModified":"2025-06-01T10:56:47+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Statement 1 is correct. Butterflies are important pollinators for many flowering plants. A significant decline in their population would directly reduce the pollination services they provide, adversely affecting the reproduction of plants that rely on them. Statement 2 is incorrect. A fall in the butterfly population is unlikely to cause a drastic increase in fungal infections of cultivated plants. Fungal infections are typically influenced by factors like weather conditions, soil health, plant susceptibility, and the presence of fungal spores, not directly by butterfly populations. While butterfly larvae are herbivores, their impact on plant health is different from fungal pathogens. Statement 3 is correct. Butterflies, in their various life stages (egg, larva\/caterpillar, pupa, adult), serve as a food source for a variety of predators, including insects like wasps and spiders, and numerous bird species. A substantial decrease in the butterfly population would reduce the food availability for these predators, potentially leading to a decline in their populations due to starvation or reduced reproductive success. - Butterflies act as pollinators and are part of the food chain. - Changes in prey population can impact predator populations.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/due-to-some-reasons-if-there-is-a-huge-fall-in-the-population-of-spec\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC IAS","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-ias\/"},{"@type":"ListItem","position":3,"name":"Due to some reasons, if there is a huge fall in the population of spec"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=91446"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91446\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=91446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=91446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=91446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}