气候变化领域集成服务门户(CCPortal): Human impacts and Anthropocene environmental change at Lake Kutubu, a Ramsar wetland in Papua New Guinea

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DOI	10.1073/pnas.2022216118
	Human impacts and Anthropocene environmental change at Lake Kutubu, a Ramsar wetland in Papua New Guinea
	Long K.E.; Schneider L.; Connor S.E.; Shulmeister N.; Finn J.; Roberts G.L.; Zawadzki A.; Gabriel Enge T.; Smol J.P.; Ballard C.; Haberle S.G.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:40
英文摘要	The impacts of human-induced environmental change that characterize the Anthropocene are not felt equally across the globe. In the tropics, the potential for the sudden collapse of ecosystems in response to multiple interacting pressures has been of increasing concern in ecological and conservation research. The tropical ecosystems of Papua New Guinea are areas of diverse rainforest flora and fauna, inhabited by human populations that are equally diverse, both culturally and linguistically. These people and the ecosystems they rely on are being put under increasing pressure from mineral resource extraction, population growth, land clearing, invasive species, and novel pollutants. This study details the last ∼90 y of impacts on ecosystem dynamics in one of the most biologically diverse, yet poorly understood, tropical wetland ecosystems of the region. The lake is listed as a Ramsar wetland of international importance, yet, since initial European contact in the 1930s and the opening of mineral resource extraction facilities in the 1990s, there has been a dramatic increase in deforestation and an influx of people to the area. Using multiproxy paleoenvironmental records from lake sediments, we show how these anthropogenic impacts have transformed Lake Kutubu. The recent collapse of algal communities represents an ecological tipping point that is likely to have ongoing repercussions for this important wetland’s ecosystems. We argue that the incorporation of an adequate historical perspective into models for wetland management and conservation is critical in understanding how to mitigate the impacts of ecological catastrophes such as biodiversity loss. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Limnology; Papua New Guinea; Resource extraction
语种	英语
scopus关键词	mineral; algal community; Article; biodiversity; community dynamics; deforestation; environmental change; environmental management; environmental protection; human; human impact (environment); lake sediment; paleoenvironment; Papua New Guinea; tropics; wetland
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238634
作者单位	School of Culture, History and Language, College of Asia and the Pacific, Australian National University, Canberra, ACT 2601, Australia; Australian Research Council (ARC), Centre of Excellence in Australian Biodiversity and Heritage, Australian National University, Canberra, ACT 2601, Australia; Department of Archaeology and History, La Trobe University, Bundoora, VIC 3083, Australia; Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia; Research School of Earth Sciences, College of Science, Australian National University, Canberra, ACT 2601, Australia; Paleoecological Environmental Assessment and Research Laboratory, Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada
推荐引用方式 GB/T 7714	Long K.E.,Schneider L.,Connor S.E.,et al. Human impacts and Anthropocene environmental change at Lake Kutubu, a Ramsar wetland in Papua New Guinea[J],2021,118(40).
APA	Long K.E..,Schneider L..,Connor S.E..,Shulmeister N..,Finn J..,...&Haberle S.G..(2021).Human impacts and Anthropocene environmental change at Lake Kutubu, a Ramsar wetland in Papua New Guinea.Proceedings of the National Academy of Sciences of the United States of America,118(40).
MLA	Long K.E.,et al."Human impacts and Anthropocene environmental change at Lake Kutubu, a Ramsar wetland in Papua New Guinea".Proceedings of the National Academy of Sciences of the United States of America 118.40(2021).