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Author Robert, K.A.; Lesku, J.A.; Partecke, J.; Chambers, B.
Title Artificial light at night desynchronizes strictly seasonal reproduction in a wild mammal Type Journal Article
Year 2015 Publication Proceedings. Biological Sciences / The Royal Society Abbreviated Journal Proc Biol Sci
Volume (down) 282 Issue 1816 Pages
Keywords Animals; Macropus eugenii; anthropogenic disturbance; circadian disruption; light pollution; melatonin; trophic mismatch; ecology; wildlife
Abstract Change in day length is an important cue for reproductive activation in seasonally breeding animals to ensure that the timing of greatest maternal investment (e.g. lactation in mammals) coincides with favourable environmental conditions (e.g. peak productivity). However, artificial light at night has the potential to interfere with the perception of such natural cues. Following a 5-year study on two populations of wild marsupial mammals exposed to different night-time levels of anthropogenic light, we show that light pollution in urban environments masks seasonal changes in ambient light cues, suppressing melatonin levels and delaying births in the tammar wallaby. These results highlight a previously unappreciated relationship linking artificial light at night with induced changes in mammalian reproductive physiology, and the potential for larger-scale impacts at the population level.
Address School of Animal Biology, The University of Western Australia, Perth 6009, Australia
Corporate Author Thesis
Publisher Royal Society Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0962-8452 ISBN Medium
Area Expedition Conference
Notes PMID:26423847 Approved no
Call Number IDA @ john @ Serial 1286
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Author Grenis, K.; Tjossem, B.; Murphy, S.
Title Predation of larval Lepidoptera in habitat fragments varies spatially and temporally but is not affected by light pollution Type Journal Article
Year 2015 Publication Journal of Insect Conservation Abbreviated Journal J. of Insect Cons.
Volume (down) 19 Issue 3 Pages 559–566
Keywords Animals; Anthropogenic disturbance; Arthropods; Conservation of Lepidoptera; Edge effects; Light pollution; Temporal variation
Abstract As human populations continue to expand, many more species are affected by habitat fragmentation and urbanization. One of the most common themes in studies of fragmented habitats is finding higher rates of predation along habitat edges. However, field studies supporting this pattern are heavily influenced by avian literature and may not apply similarly to other organisms, such as invertebrates. Field studies of predation are typically performed during the day or do not distinguish between day and night; these studies therefore overlook daily fluctuations in predation and may miss important effects that occur solely at night, such as light pollution from streetlights. We tested whether predation of larval Lepidoptera differed between edge and core habitats and also whether predation along the habitat edge varied in response to light pollution from streetlights. We placed larvae in the core of suburban habitat patches and along the habitat edge, both under streetlights as well as between streetlights where it was dark. We found that predation rate increased in both edge and core habitats over the summer. Early season, we found daily fluctuations in predation dynamics with greater predation along the habitat edge than in the habitat core during the day, but not at night. Additionally, we found that streetlights did not affect predation rate along the habitat edge. Our results suggest that increased predation along habitat edges may be a diurnal effect.
Address Department of Biological Sciences, University of Denver, Denver, CO, USA
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1171
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Author Davies, T.W.; Coleman, M.; Griffith, K.M.; Jenkins, S.R.
Title Night-time lighting alters the composition of marine epifaunal communities Type Journal Article
Year 2015 Publication Biology Letters Abbreviated Journal Biology Letters
Volume (down) 11 Issue 4 Pages 20150080-20150080
Keywords Ecology; artificial light pollution; marine ecosystems; epifaunal communities; larval recruitment; anthropogenic disturbance; light-emitting diodes; LED; biodiversity; artificial light at night; biology
Abstract Marine benthic communities face multiple anthropogenic pressures that compromise the future of some of the most biodiverse and functionally important ecosystems in the world. Yet one of the pressures these ecosystems face, night-time lighting, remains unstudied. Light is an important cue in guiding the settlement of invertebrate larvae, and altering natural regimes of nocturnal illumination could modify patterns of recruitment among sessile epifauna. We present the first evidence of night-time lighting changing the composition of temperate epifaunal marine invertebrate communities. Illuminating settlement surfaces with white light-emitting diode lighting at night, to levels experienced by these communities locally, both inhibited and encouraged the colonization of 39% of the taxa analysed, including three sessile and two mobile species. Our results indicate that ecological light pollution from coastal development, shipping and offshore infrastructure could be changing the composition of marine epifaunal communities.
Address Environment and Sustainability Institute, University of Exeter, Cornwall TR10 9FE, UK
Corporate Author Thesis
Publisher Royal Society Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1744-9561 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1162
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Author Davies, T.W.; Duffy, J.P.; Bennie, J.; Gaston, K.J.
Title Stemming the Tide of Light Pollution Encroaching into Marine Protected Areas: Light pollution in marine protected areas Type Journal Article
Year 2015 Publication Conservation Letters Abbreviated Journal Conservation Lett.
Volume (down) 9 Issue 3 Pages 164–171
Keywords Animals; Anthropogenic disturbance; artificial light; marine ecosystems; marine protected areas; pollution
Abstract Many marine ecosystems are shaped by regimes of natural light guiding the behavior of their constituent species. As evidenced from terrestrial systems, the global introduction of nighttime lighting is likely influencing these behaviors, restructuring marine ecosystems, and compromising the services they provide. Yet the extent to which marine habitats are exposed to artificial light at night is unknown. We quantified nighttime artificial light across the world's network of marine protected areas (MPAs). Artificial light is widespread and increasing in a large percentage of MPAs. While increases are more common among MPAs associated with human activity, artificial light is encroaching into a large proportion of even those marine habitats protected with the strongest legislative designations. Given the current lack of statutory tools, we propose that allocating “Marine Dark Sky Park” status to MPAs will help incentivize responsible authorities to hold back the advance of artificial light.
Address University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9FE, UK. Thomas.Davies(at)exeter.ac.uk
Corporate Author Thesis
Publisher Wiley Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1755263X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1222
Permanent link to this record