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Lynn KD, Quintanilla-Ahumada D, Anguita C, Widdicombe S, Pulgar J, Manríquez PH, Quijón PA, Duarte C. Artificial light at night alters the activity and feeding behaviour of sandy beach amphipods and pose a threat to their ecological role in Atlantic Canada. Sci Total Environ 2021; 780:146568. [PMID: 33774285 DOI: 10.1016/j.scitotenv.2021.146568] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/11/2021] [Accepted: 03/14/2021] [Indexed: 06/12/2023]
Abstract
Artificial light at night (ALAN) is a growing source of stress for organisms and communities worldwide. These include species associated with sandy beaches, which consume and process stranded seaweeds (wrack) in these ecosystems. This study assessed the influence of ALAN on the activity and feeding behaviour of Americorchestia longicornis, a prominent talitrid amphipod living in sandy beaches of Prince Edward Island, Atlantic Canada. First, two parallel field surveys were conducted to document the natural daily cycle of activity of this species. Then, three related hypotheses were used to assess whether ALAN disrupts its locomotor activity, whether that disruption lasts over time, and whether it affects the feeding behaviour and growth of the amphipods. Tanks equipped with actographs recorded amphipod locomotor activity for ~7 days and then its potential recovery (after ALAN removal) for additional ~3 days. Separate tanks were used to compare amphipod food consumptions rates, absorption efficiency and growth rates under natural daylight / night (control) and altered conditions (ALAN). The results of these manipulations provide support to two of the three hypotheses proposed and indicate that ALAN was temporarily detrimental for (i.e. significantly reduced) the surface activity, consumption rates and absorption efficiency of the amphipods, whereas growth rates remained unaffected. The results also rejected the remaining hypothesis and suggest that the plasticity exhibited by these amphipods confer them the capacity to recover their natural rhythm of activity shortly after ALAN was removed from the system. Combined, these results suggest that ALAN has a strong, albeit temporary, influence upon the abundant populations of A. longicornis. Such influence has implications for the ecosystem role played by these amphipods as consumers and processors of the subsidy of stranded seaweeds entering these ecosystems.
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Affiliation(s)
- K Devon Lynn
- Department of Biology, University of Prince Edward Island, Charlottetown, PE, Canada
| | - Diego Quintanilla-Ahumada
- Facultad de Ciencias de la Vida and Centro de Investigaciones Marinas de Quintay, CIMARQ, Universidad Andrés Bello, Santiago, Chile; Programa de Doctorado en Medicina de la Conservación, Universidad Andrés Bello, Santiago, Chile
| | - Cristobal Anguita
- Laboratorio de Ecología de Vida Silvestre, Facultad de Ciencias Forestales y Conservación de la Naturaleza, Universidad de Chile, Santiago, Chile
| | | | - José Pulgar
- Facultad de Ciencias de la Vida and Centro de Investigaciones Marinas de Quintay, CIMARQ, Universidad Andrés Bello, Santiago, Chile
| | - Patricio H Manríquez
- Centro de Estudios Avanzados en Zonas Aridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de la Ontogenia Temprana (LECOT), Chile
| | - Pedro A Quijón
- Department of Biology, University of Prince Edward Island, Charlottetown, PE, Canada.
| | - Cristian Duarte
- Facultad de Ciencias de la Vida and Centro de Investigaciones Marinas de Quintay, CIMARQ, Universidad Andrés Bello, Santiago, Chile.
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Manríquez PH, Jara ME, González CP, Seguel M, Quijón PA, Widdicombe S, Pulgar JM, Quintanilla-Ahumada D, Anguita C, Duarte C. Effects of artificial light at night and predator cues on foraging and predator avoidance in the keystone inshore mollusc Concholepas concholepas. Environ Pollut 2021; 280:116895. [PMID: 33784562 DOI: 10.1016/j.envpol.2021.116895] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
The growth of Artificial Light At Night (ALAN) is potentially having widespread effects on terrestrial and coastal habitats. In this study we addressed both the individual effects of ALAN, as well as its combined effect with predation risk on the behaviour of Concholepas concholepas, a fishery resource and a keystone species in the southeastern Pacific coast. We measured the influence of ALAN and predation risk on this mollusc's feeding rate, use of refuge for light and crawling out of water behaviour. These behavioural responses were studied using light intensities that mimicked levels that had been recorded in coastal habitat exposed to ALAN. Cues were from two species known to prey on C. concholepas during its early ontogeny: the crab Acanthocyclus hassleri and the seastar Heliaster helianthus. The feeding rates of C. concholepas were 3-4 times higher in darkness and in the absence of predator cues. In contrast, ALAN-exposed C. concholepas showed lower feeding activity and were more likely to be in a refuge than those exposed to control conditions. In the presence of olfactory predator cues, and regardless of light treatment, C. concholepas tended to crawl-out of the waterline. We provide evidence to support the hypothesis that exposure to either ALAN or predation risk can alter the feeding behaviour of C. concholepas. However, predator cue recognition in C. concholepas was not affected by ALAN in situations where ALAN and predator cues were both present: C. concholepas continued to forage when predation risk was low, i.e., in darkness and away from predator cues. Whilst this response means that ALAN may not lead to increased predation mortality in C. concholepas, it will reduce feeding activity in this naturally nocturnal species in the absence of dark refugia. Such results may have implications for the long-term health, productivity and sustainability of this keystone species.
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Affiliation(s)
- Patricio H Manríquez
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de La Ontogenia Temprana (LECOT), Coquimbo, Chile.
| | - María Elisa Jara
- Laboratorio de Ecología y Conducta de La Ontogenia Temprana (LECOT), Coquimbo, Chile
| | - Claudio P González
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de La Ontogenia Temprana (LECOT), Coquimbo, Chile
| | - Mylene Seguel
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de La Ontogenia Temprana (LECOT), Coquimbo, Chile
| | - Pedro A Quijón
- Department of Biology, University of Prince Edward Island, Charlottetown, PE, Canada
| | - Stephen Widdicombe
- Plymouth Marine Laboratory, Prospect Place, West Hoe, Plymouth PL1 3DH, UK
| | - José M Pulgar
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de La Vida, Universidad Andrés Bello, Santiago, Chile
| | - Diego Quintanilla-Ahumada
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de La Vida, Universidad Andrés Bello, Santiago, Chile
| | - Cristobal Anguita
- Laboratorio de Ecología de Vida Silvestre, Facultad de Ciencias Forestales y Conservación de La Naturaleza, Universidad de Chile, Av. Santa Rosa, 11315, La Pintana, Santiago, Chile
| | - Cristian Duarte
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de La Vida, Universidad Andrés Bello, Santiago, Chile; Centro de Investigación Marina de Quintay (CIMARQ), Facultad de Ciencias de La Vida, Universidad Andrés Bello, Chile
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Duarte C, Quintanilla-Ahumada D, Anguita C, Manríquez PH, Widdicombe S, Pulgar J, Silva-Rodríguez EA, Miranda C, Manríquez K, Quijón PA. Artificial light pollution at night (ALAN) disrupts the distribution and circadian rhythm of a sandy beach isopod. Environ Pollut 2019; 248:565-573. [PMID: 30831353 DOI: 10.1016/j.envpol.2019.02.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/31/2019] [Accepted: 02/13/2019] [Indexed: 05/17/2023]
Abstract
Coastal habitats, in particular sandy beaches, are becoming increasingly exposed to artificial light pollution at night (ALAN). Yet, only a few studies have this far assessed the effects of ALAN on the species inhabiting these ecosystems. In this study we assessed the effects of ALAN on Tylos spinulosus, a prominent wrack-consumer isopod living in sandy beaches of north-central Chile. This species burrows in the sand during daylight and emerges at night to migrate down-shore, so we argue it can be used as a model species for the study of ALAN effects on coastal nocturnal species. We assessed whether ALAN alters the distribution and locomotor activity of this isopod using a light system placed in upper shore sediments close to the edge of the dunes, mimicking light intensities measured near public lighting. The response of the isopods was compared to control transects located farther away and not exposed to artificial light. In parallel, we measured the isopods' locomotor activity in the laboratory using actographs that recorded their movement within mesocosms simulating the beach surface. Measurements in the field indicated a clear reduction in isopod abundance near the source of the light and a restriction of their tidal distribution range, as compared to control transects. Meanwhile, the laboratory experiments showed that in mesocosms exposed to ALAN, isopods exhibited reduced activity and a circadian rhythm that was altered and even lost after a few days. Such changes with respect to control mesocosms with a natural day/night cycle suggest that the changes observed in the field were directly related to a disruption in the locomotor activity of the isopods. All together these results provide causal evidence of negative ALAN effects on this species, and call for further research on other nocturnal sandy beach species that might become increasingly affected by ALAN.
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Affiliation(s)
- Cristian Duarte
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile; Center for the Study of Multiple-Drivers on Marine Socio-Ecological Systems (MUSELS), Universidad de Concepción, Concepción, Chile.
| | - Diego Quintanilla-Ahumada
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Cristobal Anguita
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Patricio H Manríquez
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de la Ontogenia Temprana (LECOT), Coquimbo, Chile
| | - Stephen Widdicombe
- Plymouth Marine Laboratory, Prospect Place, West Hoe, Plymouth, PL1 3DH, UK
| | - José Pulgar
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Eduardo A Silva-Rodríguez
- Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
| | - Cristian Miranda
- Escuela de Biociencias, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Karen Manríquez
- Programa de Doctorado en Medicina de la Conservación, Universidad Andrés Bello, Santiago, Chile
| | - Pedro A Quijón
- Department of Biology, University of Prince Edward Island, Charlottetown, PE, Canada
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Pulgar J, Zeballos D, Vargas J, Aldana M, Manriquez PH, Manriquez K, Quijón PA, Widdicombe S, Anguita C, Quintanilla D, Duarte C. Endogenous cycles, activity patterns and energy expenditure of an intertidal fish is modified by artificial light pollution at night (ALAN). Environ Pollut 2019; 244:361-366. [PMID: 30352350 DOI: 10.1016/j.envpol.2018.10.063] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/11/2018] [Accepted: 10/12/2018] [Indexed: 06/08/2023]
Abstract
The increase of global light emissions in recent years has highlighted the need for urgent evaluation of their impacts on the behaviour, ecology and physiology of organisms. Numerous species exhibit daily cycles or strong scototaxic behaviours that could potentially be influenced if natural lighting conditions or cycles are disrupted. Artificial Light Pollution at Night (ALAN) stands for situations where artificial light alters natural light-dark cycles, as well as light intensities and wavelengths. ALAN is increasingly recognized as a potential threat to biodiversity, mainly because a growing number of studies are demonstrating its influence on animal behaviour, migration, reproduction and biological interactions. Most of these studies have focused on terrestrial organisms and ecosystems with studies on the effects of ALAN on marine ecosystems being more occasional. However, with the increasing human use and development of the coastal zone, organisms that inhabit shallow coastal or intertidal systems could be at increasing risk from ALAN. In this study we measured the levels of artificial light intensity in the field and used these levels to conduct experimental trials to determine the impact of ALAN on an intertidal fish. Specifically, we measured ALAN effects on physiological performance (oxygen consumption) and behaviour (activity patterns) of "Baunco" the rockfish Girella laevifrons, one of the most abundant and ecologically important intertidal fish in the Southeastern Pacific littoral. Our results indicated that individuals exposed to ALAN exhibited increased oxygen consumption and activity when compared with control animals. Moreover, those fish exposed to ALAN stopped displaying the natural (circatidal and circadian) activity cycles that were observed in control fish throughout the experiment. These changes in physiological function and behaviour could have serious implications for the long-term sustainability of fish populations and indirect impacts on intertidal communities in areas affected by ALAN.
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Affiliation(s)
- José Pulgar
- Departamento de Ecología & Biodiversidad, Facultad de Ciencia de la Vida, Universidad Andres Bello, Chile.
| | - Danae Zeballos
- Departamento de Ecología & Biodiversidad, Facultad de Ciencia de la Vida, Universidad Andres Bello, Chile
| | - Juan Vargas
- Departamento de Ecología & Biodiversidad, Facultad de Ciencia de la Vida, Universidad Andres Bello, Chile
| | - Marcela Aldana
- Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Facultad de Ciencias, Universidad Santo Tomás, Ejército146, Santiago, Chile; Doctorado en Conservación y Gestión de la Biodiversidad, Facultad de Ciencias, Universidad Santo Tomás, Ejército146, Santiago, Chile
| | - Patricio H Manriquez
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de la Ontogenia Temprana (LECOT), Coquimbo, Chile
| | - Karen Manriquez
- Departamento de Ecología & Biodiversidad, Facultad de Ciencia de la Vida, Universidad Andres Bello, Chile; Doctorado en Medicina de la Conservación, Universidad Andres Bello, Chile
| | - Pedro A Quijón
- Department of Biology, University of Prince Edward Island, Charlottetown, PE, Canada
| | - Stephen Widdicombe
- Plymouth Marine Laboratory, Prospect Place, West Hoe, Plymouth, PL1 3DH, UK
| | - Cristobal Anguita
- Departamento de Ecología & Biodiversidad, Facultad de Ciencia de la Vida, Universidad Andres Bello, Chile
| | - Diego Quintanilla
- Departamento de Ecología & Biodiversidad, Facultad de Ciencia de la Vida, Universidad Andres Bello, Chile
| | - Cristian Duarte
- Departamento de Ecología & Biodiversidad, Facultad de Ciencia de la Vida, Universidad Andres Bello, Chile; Center for the Study of Multiple-Drivers on Marine Socio-Ecological Systems (MUSELS), Universidad de Concepción, Concepción, Chile
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Molina V, Dorador C, Fernández C, Bristow L, Eissler Y, Hengst M, Hernandez K, Olsen LM, Harrod C, Marchant F, Anguita C, Cornejo M. The activity of nitrifying microorganisms in a high-altitude Andean wetland. FEMS Microbiol Ecol 2018; 94:4969675. [DOI: 10.1093/femsec/fiy062] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 04/09/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Verónica Molina
- Departamento de Biología, Observatorio de Ecología Microbiana, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Avenida Leopoldo Carvallo 270, Playa Ancha, Valparaíso, Chile
| | - Cristina Dorador
- Laboratorio de Complejidad Microbiana y Ecología Funcional, Instituto de Antofagasta, Departamento de Biotecnología, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta. Avenida Universidad de Antofagasta s/n, Antofagasta, Chile
- Centre for Biotechnology and Bioengineering, Universidad de Chile, Beaucheff 851 (Piso 7)
| | - Camila Fernández
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, F-66650, Banyuls/mer, France
- Interdisciplinary Center for Aquaculture Research (INCAR), COPAS SUR-AUSTRAL Program, Barrio Universitario s/n, Universidad de Concepción, Concepción, Chile
| | - Laura Bristow
- Nordic Center for Earth Evolution (NordCEE), Department of Biology, University of Southern Denmark, Campusvej 55-5230, Odense, Denmark
| | - Yoanna Eissler
- Centro de Investigación y Gestión de Recursos Naturales, Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile
| | - Martha Hengst
- Centre for Biotechnology and Bioengineering, Universidad de Chile, Beaucheff 851 (Piso 7)
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias, Universidad Católica del Norte. Av Angamos 0610 Antofagasta, Chile
| | - Klaudia Hernandez
- Centro de Investigacion Marina Quintay, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, Avenida República 440, Santiago, Chile10
| | | | - Chris Harrod
- Fish and Stable Isotope Ecology Laboratory, Instituto de Ciencias Naturales Alexander von Humboldt, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile
| | - Francisca Marchant
- Laboratorio de Complejidad Microbiana y Ecología Funcional, Instituto de Antofagasta, Departamento de Biotecnología, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta. Avenida Universidad de Antofagasta s/n, Antofagasta, Chile
| | - Cristobal Anguita
- Departamento de Ecologia y Biodiversidad, Facultad de Ecologia y Recursos Naturales, Universidad Andres Bello, Av. Republica 440, Santiago, Chile
| | - Marcela Cornejo
- Escuela de Ciencias del Mar e Instituto Milenio de Oceanografía , Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile, Altamirano 1480, Valparaíso
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Vidal M, Jansa M, Anguita C, Torres M, Giménez M, Esmatjes E, Levy I, Conget I. Impact of a special therapeutic education programme in patients transferred from a paediatric to an adult diabetes unit. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/edn.5] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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