{"id":87143,"date":"2025-06-01T04:30:03","date_gmt":"2025-06-01T04:30:03","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87143"},"modified":"2025-06-01T04:30:03","modified_gmt":"2025-06-01T04:30:03","slug":"which-one-of-the-following-is-the-appropriate-sequential-order-of-ecol","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-appropriate-sequential-order-of-ecol\/","title":{"rendered":"Which one of the following is the appropriate sequential order of ecol"},"content":{"rendered":"

Which one of the following is the appropriate sequential order of ecological succession ?<\/p>\n

[amp_mcq option1=”Invasion \u2013 Nudation \u2013 Competition and coaction \u2013 Reaction \u2013 Stabilization” option2=”Nudation \u2013 Invasion \u2013 Competition and coaction \u2013 Reaction \u2013 Stabilization” option3=”Nudation \u2013 Invasion \u2013 Reaction \u2013 Competition and coaction \u2013 Stabilization” option4=”Invasion \u2013 Nudation \u2013 Competition and coaction \u2013 Reaction \u2013 Stabilization” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC Geoscientist – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nEcological succession is the process of change in the species structure of an ecological community over time. It typically occurs in a somewhat predictable sequence of stages. The question asks for the correct sequential order of these stages.
\n<\/section>\n
\nThe classic sequence of ecological succession (particularly primary succession on bare ground) involves several steps:
\n1. **Nudation:** The creation of a bare area devoid of life (e.g., by volcanic eruption, glacier retreat, landslide).
\n2. **Invasion:** The arrival of organisms (propagules like seeds, spores, or larvae) into the bare area. This includes migration and ecesis (establishment and growth).
\n3. **Competition and Coaction:** Interactions between the established organisms and with the environment, including competition for resources and modifications of the environment.
\n4. **Reaction:** The established organisms modify the environment (e.g., adding organic matter, changing soil pH, altering light levels), making it more or less suitable for themselves and often creating conditions favorable for the invasion and growth of new species.
\n5. **Stabilization:** The community reaches a relatively stable state, often referred to as a climax community, where the species composition changes little over time.
\n<\/section>\n
\nComparing the options with the standard sequence, option B (Nudation \u2013 Invasion \u2013 Competition and coaction \u2013 Reaction \u2013 Stabilization) correctly follows the order of the main stages of ecological succession from the initial bare state to a stable community.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the appropriate sequential order of ecological succession ? [amp_mcq option1=”Invasion \u2013 Nudation \u2013 Competition and coaction \u2013 Reaction \u2013 Stabilization” option2=”Nudation \u2013 Invasion \u2013 Competition and coaction \u2013 Reaction \u2013 Stabilization” option3=”Nudation \u2013 Invasion \u2013 Reaction \u2013 Competition and coaction \u2013 Stabilization” option4=”Invasion \u2013 Nudation \u2013 Competition and coaction … <\/p>\n

Detailed SolutionWhich one of the following is the appropriate sequential order of ecol<\/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":[1091],"tags":[1103,1367,1136],"class_list":["post-87143","post","type-post","status-publish","format-standard","hentry","category-upsc-geoscientist","tag-1103","tag-ecology","tag-environment-and-ecology","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the appropriate sequential order of ecol<\/title>\n<meta name=\"description\" content=\"Ecological succession is the process of change in the species structure of an ecological community over time. It typically occurs in a somewhat predictable sequence of stages. The question asks for the correct sequential order of these stages. The classic sequence of ecological succession (particularly primary succession on bare ground) involves several steps: 1. **Nudation:** The creation of a bare area devoid of life (e.g., by volcanic eruption, glacier retreat, landslide). 2. **Invasion:** The arrival of organisms (propagules like seeds, spores, or larvae) into the bare area. This includes migration and ecesis (establishment and growth). 3. **Competition and Coaction:** Interactions between the established organisms and with the environment, including competition for resources and modifications of the environment. 4. **Reaction:** The established organisms modify the environment (e.g., adding organic matter, changing soil pH, altering light levels), making it more or less suitable for themselves and often creating conditions favorable for the invasion and growth of new species. 5. **Stabilization:** The community reaches a relatively stable state, often referred to as a climax community, where the species composition changes little over time.\" \/>\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\/which-one-of-the-following-is-the-appropriate-sequential-order-of-ecol\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is the appropriate sequential order of ecol\" \/>\n<meta property=\"og:description\" content=\"Ecological succession is the process of change in the species structure of an ecological community over time. It typically occurs in a somewhat predictable sequence of stages. The question asks for the correct sequential order of these stages. The classic sequence of ecological succession (particularly primary succession on bare ground) involves several steps: 1. **Nudation:** The creation of a bare area devoid of life (e.g., by volcanic eruption, glacier retreat, landslide). 2. **Invasion:** The arrival of organisms (propagules like seeds, spores, or larvae) into the bare area. This includes migration and ecesis (establishment and growth). 3. **Competition and Coaction:** Interactions between the established organisms and with the environment, including competition for resources and modifications of the environment. 4. **Reaction:** The established organisms modify the environment (e.g., adding organic matter, changing soil pH, altering light levels), making it more or less suitable for themselves and often creating conditions favorable for the invasion and growth of new species. 5. **Stabilization:** The community reaches a relatively stable state, often referred to as a climax community, where the species composition changes little over time.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-appropriate-sequential-order-of-ecol\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T04:30:03+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=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one of the following is the appropriate sequential order of ecol","description":"Ecological succession is the process of change in the species structure of an ecological community over time. 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