DOI: 10.1111/gcb.12535
论文题名: Changing climate and the altitudinal range of avian malaria in the Hawaiian Islands - An ongoing conservation crisis on the island of Kaua'i
作者: Atkinson C.T. ; Utzurrum R.B. ; Lapointe D.A. ; Camp R.J. ; Crampton L.H. ; Foster J.T. ; Giambelluca T.W.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 8 起始页码: 2426
结束页码: 2436
语种: 英语
英文关键词: Disease transmission
; Hawai'i
; Honeycreeper
; Plasmodium relictum
; Streamflow
; Threatened species
Scopus关键词: air temperature
; bird
; climate change
; disease transmission
; endangered species
; endemic species
; environmental conditions
; global warming
; infectious disease
; malaria
; mosquito
; parasite
; precipitation (climatology)
; streamflow
; Hawaii [United States]
; Hawaiian Islands
; Kauai
; United States
; Aves
; Chasiempis
; Chasiempis sandwichensis
; Chasiempis sclateri
; Culex pipiens quinquefasciatus
; Loxops caeruleirostris
; Oreomystis bairdi
; Plasmodium relictum
; protozoal DNA
; rain
; altitude
; animal
; climate change
; Culex
; disease carrier
; environmental protection
; Malaria, Avian
; parasitology
; physiology
; Plasmodium
; prevalence
; river
; songbird
; temperature
; transmission
; United States
; Altitude
; Animals
; Climate Change
; Conservation of Natural Resources
; Culex
; DNA, Protozoan
; Hawaii
; Insect Vectors
; Malaria, Avian
; Passeriformes
; Plasmodium
; Prevalence
; Rain
; Rivers
; Temperature
英文摘要: Transmission of avian malaria in the Hawaiian Islands varies across altitudinal gradients and is greatest at elevations below 1500 m where both temperature and moisture are favorable for the sole mosquito vector, Culex quinquefasciatus, and extrinsic sporogonic development of the parasite, Plasmodium relictum. Potential consequences of global warming on this system have been recognized for over a decade with concerns that increases in mean temperatures could lead to expansion of malaria into habitats where cool temperatures currently limit transmission to highly susceptible endemic forest birds. Recent declines in two endangered species on the island of Kaua'i, the 'Akikiki (Oreomystis bairdi) and 'Akeke'e (Loxops caeruleirostris), and retreat of more common native honeycreepers to the last remaining high elevation habitat on the Alaka'i Plateau suggest that predicted changes in disease transmission may be occurring. We compared prevalence of malarial infections in forest birds that were sampled at three locations on the Plateau during 1994-1997 and again during 2007-2013, and also evaluated changes in the occurrence of mosquito larvae in available aquatic habitats during the same time periods. Prevalence of infection increased significantly at the lower (1100 m, 10.3% to 28.2%), middle (1250 m, 8.4% to 12.2%), and upper ends of the Plateau (1350 m, 2.0% to 19.3%). A concurrent increase in detections of Culex larvae in aquatic habitats associated with stream margins indicates that populations of the vector are also increasing. These increases are at least in part due to local transmission because overall prevalence in Kaua'i 'Elepaio (Chasiempis sclateri), a sedentary native species, has increased from 17.2% to 27.0%. Increasing mean air temperatures, declining precipitation, and changes in streamflow that have taken place over the past 20 years are creating environmental conditions throughout major portions of the Alaka'i Plateau that support increased transmission of avian malaria. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62124
Appears in Collections: 影响、适应和脆弱性
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作者单位: Pacific Island Ecosystems Research Center, U.S. Geological Survey, Hawai'i National Park, HI, 96718, United States; Hawai'i Cooperative Studies Unit, University of Hawai'i at Hilo, Hilo, HI, 96720, United States; Department of Land and Natural Resources, Kauai Forest Bird Recovery Project, State of Hawaii, Hanapepe, HI, 96716, United States; Center for Microbial Genetics and Genomics, Northern Arizona University, Flagstaff, AZ, 86011, United States; University of Hawai'i at Manoa, Department of Geography, Honolulu, HI, 96822, United States; Hydrospheric Atmospheric Research Center, Nagoya University, Nagoya, Japan
Recommended Citation:
Atkinson C.T.,Utzurrum R.B.,Lapointe D.A.,et al. Changing climate and the altitudinal range of avian malaria in the Hawaiian Islands - An ongoing conservation crisis on the island of Kaua'i[J]. Global Change Biology,2014-01-01,20(8)