Short-term effects of wildfire on Canary Islands’ endemic lizards
DOI:
https://doi.org/10.11160/bah.301Keywords:
Canary Islands, Gallotia galloti, lizard, short-term response, wildfireAbstract
The Macaronesia bioregion is experiencing an increase in the frequency, intensity and magnitude of fires. However, the impact that this new fire regime may have on the endemic fauna and flora of many islands, such as those of the Canary archipelago, is unknown. In this study we analyzed the short-term response of the Gallot’s lizard, Gallotia galloti, to a fire that occurred in the northwestern part of La Palma in the summer of 2023. We carried out 187 linear transects in burned and unburned pine forest and mountain scrub plots in June, July, and September 2024, hence, almost a year after the fire. We observed a total of 333 lizards, and the Generalized Linear Mixed Model did not detect differences in lizard abundances between burned and unburned areas. The presence of juvenile lizards in the burned areas evidences the survival of the eggs after the fire. However, we also found a significant reduction of hatchling lizards in burned areas in September 2024, i.e. the second generation born after the fire, indicating that short-term burned areas can compromise the viability of the populations. These results suggest that the Gallot’s lizard can persist in the face of fire in the short term, although environmental harsh conditions could hinder its resilience in the mid-term.
References
Álvarez-Ruiz, L.; Belliure, J., & Pausas, J.G. (2021). Fire-driven behavioral response to smoke in a Mediterranean lizard. Behavioral Ecology 32: 662-667.
Azor, J.S.; Santos, X. & Pleguezuelos, J.M. (2015). Conifer-plantation thinning restores reptile biodiversity in Mediterranean landscapes. Forest Ecology and Management 354: 185-189.
Bartolomé, C.; Álvarez Jiménez, J.; Vaquero, J.; Costa, M.; Casermeiro, M.A.; Giraldo, J. & Zamora, J. (2005). Los Tipos de Hábitat de Interés Comunitario en España. Ministerio de Medio Ambiente, Dirección General para la Biodiversidad, Madrid, Spain.
Blackburn, D.G. (1998). Resorption of oviductal eggs and embryos in squamate reptiles. Herpetological Journal 8: 65-71.
Chergui, B.; Fahd, S.; Santos, X. & Pausas, J.G. (2018). Socioeconomic factors drive fire regime variability in the Mediterranean Basin. Ecosystems 21: 619-628.
Couturier, T.; Besnard, A.; Bertolero, A.; Bosc, V.; Astruc, G. & Cheylan, M. (2014). Factors determining the abundance and occurrence of Hermann’s tortoise Testudo hermanni in France and Spain: Fire regime and landscape changes as the main drivers. Biological Conservation 170: 177-187.
de los Santos, A. & de Nicolás, J.P. (2008). Environmental niche of the smut lizard population on a sandy coastal ecosystem of Southeastern Tenerife (Canary Islands). Marine Ecology 29: 2-11.
Delgado-García, J.D.; Arévalo, J.R. & Fernández-Palacios, J.M. (2007). Road edge effect on the abundance of the lizard Gallotia galloti (Sauria: Lacertidae) in two Canary Islands forests. Biodiversity and Conservation 16: 2949-2963.
Díaz, J.A. (1994). Field thermoregulatory behavior in the western Canarian lizard Gallotia galloti. Journal of Herpetology 28: 325-333.
González-Fernández, A.; Couturier, S.; Dotor-Diego, R.; Martínez-Díaz-González, R. & Sunny, A. (2024). Direct fire-induced reptile mortality in the Sierra Morelos natural protected area (Mexico). Herpetozoa 37: 213-226.
Huey, R.B. (1982). Temperature, physiology, and the ecology of reptiles, In C. Gans & F.H. Pough (eds.) Biology of the Reptilia, vol 12. Academic Press, London, UK, pp. 25-91.
Irl, S.D.; Steinbauer, M.J.; Messinger, J.; Blume-Werry, G.; Palomares-Martínez, Á.; Beierkuhnlein, C. & Jentsch, A. (2014). Burned and devoured-introduced herbivores, fire, and the endemic flora of the high-elevation ecosystem on La Palma, Canary Islands. Arctic, Antarctic, and Alpine Research 46: 859-869.
Jolly, C.J.; Dickman, C.R.; Doherty, T.S.; van Eeden, L.M.; Geary, W.L.; Legge, S.M.; Woinarski, J.C.Z. & Nimmo, D.G. (2022). Animal mortality during fire. Global Change Biology 28: 2053-2065.
Jones, G.M.; Goldberg, J.F.; Wilcox, T.M.; Buckley, L.B.; Parr, C.L.; Linck, E.B.; Fountain, E.D. & Schwartz, M.K. (2023). Fire-driven animal evolution in the Pyrocene. Trends in Ecology and Evolution 38: 1072-1084.
Molina-Terrén, D.M.; Fry, D.L.; Grillo, F.F.; Cardil, A. & Stephens, S.L. (2016). Fire history and management of Pinus canariensis forests on the western Canary Islands Archipelago, Spain. Forest Ecology and Management 382: 184-192.
Moreira, F.; Viedma, O.; Arianoutsou, M.; Curt, T.; Koutsias, N.; Rigolot, E. & Bilgili, E. (2011). Landscape–wildfire interactions in southern Europe: implications for landscape management. Journal of Environmental Management 92: 2389-2402.
Moreno-Rueda, G.; Melero, E.; Reguera, S.; Zamora-Camacho, F.J. & Comas, M. (2019). Short-term impact of a small wildfire on the lizard Psammodromus algirus (Linnaeus, 1758): A before-after-control-impact study (Squamata: Sauria: Lacertidae). Herpetozoa 31: 173-182.
Parisien, M.-A.; Barber, Q.E.; Bourbonnais, M.L.; Daniels, L.D.; Flannigan, M.D.; Gray, R.W.; Hoffman, K.M.; Jain, P.; Stephens, S.L.; Taylor, S.W. & Whitman, E. (2023). Abrupt, climate-induced increase in wildfires in British Columbia since the mid-2000s. Communications Earth & Environment 4: 309.
Pausas, J.G. (2019). Generalized fire response strategies in plants and animals. Oikos 128: 147-153.
Pausas, J.G. (2022). Pyrogeography across the western Palearctic: A diversity of fire regimes. Global Ecology and Biogeography 31: 1923-1932.
Pausas, J.G. & Keeley, J.E. (2014). Evolutionary ecology of resprouting and seeding in fire-prone ecosystems. New Phytologist 204: 55-65.
Pausas, J.G. & Parr, C.L. (2018). Towards an understanding of the evolutionary role of fire in animals. Evolutionary Ecology 32: 113-125.
Price E.R. (2017). The physiology of lipid storage and use in reptiles. Biological Reviews 92: 1406-1426.
Puig‐Gironès, R. & Pons, P. (2023). Mice population dynamics and structure over time and space after wildfires. Journal of Zoology 321: 128-141.
Puig-Gironès, R.; Brotons, L. & Pons, P. (2022). Aridity, fire severity and proximity of populations affect the temporal responses of open-habitat birds to wildfires. Biological Conservation 272: 109661.
Ravazzi, C.; Mariani, M.; Criado, C.; Garozzo, L.; Naranjo-Cigala, A.; Pérez-Torrado, F.J.; Pini, R.; Rodríguez-González, A.; Nogué, S.; Whittaker, R.J.; Fernández-Palacios, J.M. & de Nascimento, L. (2021). The influence of natural fire and cultural practices on island ecosystems: Insights from a 4,800-year record from Gran Canaria, Canary Islands. Journal of Biogeography 48: 276-290.
Rodríguez, A.; Nogales, M.; Rumeu, B. & Rodríguez, B. (2008). Temporal and spatial variation in the diet of the endemic lizard Gallotia galloti in an insular Mediterranean scrubland. Journal of Herpetology 42: 213-222.
Salvador, A. (2015). Lagarto Tizón – Gallotia galloti, In A. Salvador & A. Marco (eds.). Enciclopedia Virtual de los Vertebrados Españoles. Museo Nacional de Ciencias Naturales, Madrid, Spain. Available at https://www.vertebradosibericos.org/reptiles/galgal.html. Retrieved on 18 October 2024.
Santos, X. & Llorente, G.A. (2004). Lipid dynamics in the viperine snake, Natrix maura, from the Ebro Delta (NE Spain). Oikos 105: 132-140.
Santos, X.; Bros, V. & Miño, À. (2009). Recolonization of a burned Mediterranean area by terrestrial gastropods. Biodiversity and Conservation 18: 3153-3165.
Santos, X.; Badiane, A. & Matos, C. (2016). Contrasts in short and long term responses of Mediterranean reptile species to fire and habitat structure. Oecologia 180: 205-216.
Santos, X.; Belliure, J.; Gonçalves, J. & Pausas, J.G. (2022). Resilience of reptiles to megafires. Ecological Applications 32: e2518.
Santos, X.; Chergui, B.; Belliure, J.; Moreira, F. & Pausas, J.G. (2025). Reptile responses to fire across the western Mediterranean Basin. Conservation Biology 39: e14326.
Sayedi, S.S.; Abbott, B.W.; Vannière, B.; Leys, B.; Colombaroli, D.; Romera, G.G.; Słowiński, M.; Aleman, J.C.; Blarquez, O.; Feurdean, A. et al. (2024). Assessing changes in global fire regimes. Fire Ecology 20: 18.
Valido, A. & Nogales, M. (1994). Frugivory and seed dispersal by the lizard Gallotia galloti (Lacertidae) in a xeric habitat of the Canary Islands. Oikos 70: 403-411.
Valido, A. & Nogales, M. (2003). Digestive ecology of two omnivorous Canarian lizard species (Gallotia, Lacertidae). Amphibia-Reptilia 24: 331-344.
Valido, A.; Nogales, M. & Medina, F.M. (2003). Fleshy fruits in the diet of Canarian lizards Gallotia galloti (Lacertidae) in a xeric habitat of the Island of Tenerife. Journal of Herpetology 37: 741-747.
Viljur, M.-L.; Abella, S.E.; Adámek, M.; Alencar, J.B.R.; Barber, N.A.; Beudert, B.; Burkle, L.A.; Cagnolo, L.; Campos, B.R.; Chao, A. et al. (2022). The effect of natural disturbances on forest biodiversity: an ecological synthesis. Biological Reviews 97: 1930-1947.
Watson, S.J.; Taylor, R.S.; Nimmo, D.G.; Kelly, L.T.; Clarke M.F. & Bennett, A.F. (2012). The influence of unburnt patches and distance from refuges on post-fire bird communities. Animal Conservation 15: 499-507.
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