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Population density of the spur-thighed tortoise Testudo graeca declines after fire in north-western Africa.
PLoS One 2019; 14(8):e0220969Plos

Abstract

Fire is a key ecological process in several biomes worldwide. Over recent decades, human activities (e.g. rural abandonment, monoculture plantations) and global warming are magnifying the risk of fire, with changes in fire intensity and frequency. Here, we offer the first study that examines the impact of fire on the spur-thighed tortoise Testudo graeca living in a native cork oak forest and pine plantation in north-western Africa. A total of 44 transects (22 burnt and 22 unburnt) were sampled at 8 sites affected by fires of natural cork oak forest and pine plantation with 8 surveys per site in 2015-2017 (264 hours of sampling effort). Tortoise densities were estimated with line-transect distance sampling. The detection probability of tortoises was higher in burnt (0.915) than unburnt (0.474) transects. The density of tortoises was negatively associated with elevation and declined with fire by c. 50% in both forest types. The negative response of T. graeca to fire should be considered in conservation planning of this species in north-western Africa in a future scenario of changes in fire regime.

Authors+Show Affiliations

Equipe de Recherche Ecologie, Systématique, Conservation de la Biodiversité, Faculté des Sciences de Tétouan, Université Abdelmalek Essaâdi. BP 2121 El M'Hannech, Tétouan, Morocco.Departamento de Biología Aplicada, Universidad Miguel Hernandez, Elche, Alicante, Spain. Departamento de Ecología, Universidad de Alicante, Alicante, Spain.Departamento de Biología Aplicada, Universidad Miguel Hernandez, Elche, Alicante, Spain.Equipe de Recherche Ecologie, Systématique, Conservation de la Biodiversité, Faculté des Sciences de Tétouan, Université Abdelmalek Essaâdi. BP 2121 El M'Hannech, Tétouan, Morocco.CIBIO/InBIO (Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do Porto). R. Padre Armando Quintas,Vairão, Portugal.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31419242

Citation

Chergui, Brahim, et al. "Population Density of the Spur-thighed Tortoise Testudo Graeca Declines After Fire in North-western Africa." PloS One, vol. 14, no. 8, 2019, pp. e0220969.
Chergui B, Rodríguez-Caro RC, Graciá E, et al. Population density of the spur-thighed tortoise Testudo graeca declines after fire in north-western Africa. PLoS ONE. 2019;14(8):e0220969.
Chergui, B., Rodríguez-Caro, R. C., Graciá, E., Fahd, S., & Santos, X. (2019). Population density of the spur-thighed tortoise Testudo graeca declines after fire in north-western Africa. PloS One, 14(8), pp. e0220969. doi:10.1371/journal.pone.0220969.
Chergui B, et al. Population Density of the Spur-thighed Tortoise Testudo Graeca Declines After Fire in North-western Africa. PLoS ONE. 2019;14(8):e0220969. PubMed PMID: 31419242.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Population density of the spur-thighed tortoise Testudo graeca declines after fire in north-western Africa. AU - Chergui,Brahim, AU - Rodríguez-Caro,Roberto C, AU - Graciá,Eva, AU - Fahd,Soumia, AU - Santos,Xavier, Y1 - 2019/08/16/ PY - 2019/02/05/received PY - 2019/07/26/accepted PY - 2019/8/17/entrez PY - 2019/8/17/pubmed PY - 2019/8/17/medline SP - e0220969 EP - e0220969 JF - PloS one JO - PLoS ONE VL - 14 IS - 8 N2 - Fire is a key ecological process in several biomes worldwide. Over recent decades, human activities (e.g. rural abandonment, monoculture plantations) and global warming are magnifying the risk of fire, with changes in fire intensity and frequency. Here, we offer the first study that examines the impact of fire on the spur-thighed tortoise Testudo graeca living in a native cork oak forest and pine plantation in north-western Africa. A total of 44 transects (22 burnt and 22 unburnt) were sampled at 8 sites affected by fires of natural cork oak forest and pine plantation with 8 surveys per site in 2015-2017 (264 hours of sampling effort). Tortoise densities were estimated with line-transect distance sampling. The detection probability of tortoises was higher in burnt (0.915) than unburnt (0.474) transects. The density of tortoises was negatively associated with elevation and declined with fire by c. 50% in both forest types. The negative response of T. graeca to fire should be considered in conservation planning of this species in north-western Africa in a future scenario of changes in fire regime. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/31419242/Population_density_of_the_spur-thighed_tortoise_Testudo_graeca_declines_after_fire_in_north-western_Africa L2 - http://dx.plos.org/10.1371/journal.pone.0220969 DB - PRIME DP - Unbound Medicine ER -