{"id":7409,"date":"2017-10-24T20:03:25","date_gmt":"2017-10-24T20:03:25","guid":{"rendered":"http:\/\/sustainableagriculturewaitrose.org\/?p=7409"},"modified":"2017-10-24T20:03:25","modified_gmt":"2017-10-24T20:03:25","slug":"selective-logging-threatens-biodiversity","status":"publish","type":"post","link":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/2017\/10\/24\/selective-logging-threatens-biodiversity\/","title":{"rendered":"Selective logging threatens biodiversity"},"content":{"rendered":"
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\"\"A new study finds that even low levels of logging in the Amazon rainforest may lead to great losses in biodiversity.<\/p>\n<\/div>\n

More than 403 million hectares of tropical forests worldwide have been earmarked for timber concessions with selective logging a common economic activity. The Brazilian Amazon alone holds around 4.5 billion m\u00b3\u00a0of commercial timber volume, and the demand on Amazonian hardwood is increased as African and Asian timber stocks are exhausted.<\/p>\n

The international study<\/a>, \u2018Identifying thresholds of logging intensity on dung beetle communities to improve the sustainable management of Amazonian tropical forests<\/em>\u2019 looked at the impact of logging by examining its effect on forest dung beetles and the way in which the beetles remove dung and disturb the soil, considered as good indicators of forest and soil health.<\/p>\n

The research, published in the scientific journal\u00a0Biological Conservation<\/em><\/a>, looked at 34 different plots situated in the state of Par\u00e1 – an area two times that of Spain and a focal point for Amazon protection efforts in the last decades. They found that even low levels of logging led to negative effects on dung beetle diversity and rates of dung beetle-mediated soil removal.<\/p>\n

\u201cOur findings provide novel empirical evidence that biological consequences from Reduced Impact Logging depend strongly on the scale and intensity at which logging operations are developed\u201d said lead researcher Dr\u00a0Filipe Fran\u00e7a<\/a>\u00a0from the Lancaster Environment Centre<\/a> at Lancaster University<\/a> and the Federal University of Lavras<\/a> in Brazil. \u201cThe dung beetle species richness and biomass, and\u00a0the way they disturb the soil were negatively affected by increasing the logging intensity.\u201d<\/p>\n

For context, the activity of almost 5,000 dung beetles from 53 species was recorded within the largest logging concession in the Brazilian Amazon, covering 544,000 hectares of native forest \u2013 an area 3.5 times that of London. There was a rapid reduction in biodiversity up to a logging intensity of around 10 -20 m3<\/sup>\u00a0of timber removal per hectare after which it flattened.<\/p>\n

\u201cContrary to expectations, we found concave-shaped relationships between logging intensity and biodiversity and ecosystem functioning, demonstrating that sensitive dung beetle species and important processes may be lost following even low intensity anthropogenic forest disturbances\u201d, said co-author\u00a0Professor Jos Barlow<\/a>\u00a0of the Lancaster Environment Centre at Lancaster University.<\/p>\n

\u00a0\u201cTaken together, these results suggest that production forests in the tropics need to reconsider the scale at which logging intensity is regulated, and put in place measures that further incentivise land sparing to enhance biodiversity conservation.\u201d<\/p>\n

Read the paper in\u00a0Biological Conservation<\/em>:\u00a0Identifying thresholds of logging intensity on dung beetle communities to improve the sustainable management of Amazonian tropical forests<\/a>\u00a0(\u00a3).<\/p>\n

Article source\/image credit: Lancaster University<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

A new study finds that even low levels of logging in the Amazon rainforest may lead to great losses in biodiversity. More than 403 million hectares of tropical forests worldwide have been earmarked for timber concessions with selective logging a common economic activity. The Brazilian Amazon alone holds around 4.5 billion m\u00b3\u00a0of commercial timber volume, […]<\/p>\n","protected":false},"author":381,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[6],"tags":[54,55,125,159,313,371,446,647,678,679,709,1074,1114],"class_list":["post-7409","post","type-post","status-publish","format-standard","hentry","category-press-release","tag-amazon","tag-amazon-rainforest","tag-biological-conservation","tag-brazil","tag-deforestation","tag-dung-beetles","tag-filipe-franca","tag-jos-barlow","tag-lancaster-environment-centre","tag-lancaster-university","tag-logging","tag-south-america","tag-sustainability"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/posts\/7409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/users\/381"}],"replies":[{"embeddable":true,"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/comments?post=7409"}],"version-history":[{"count":0,"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/posts\/7409\/revisions"}],"wp:attachment":[{"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/media?parent=7409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/categories?post=7409"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wp.lancs.ac.uk\/sustainable-agriculture\/wp-json\/wp\/v2\/tags?post=7409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}