Good news from newts: distribution, population size, and dynamics of two protected newt species in the Jiu Gorge National Park, Romania
DOI:
https://doi.org/10.24193/subbbiol.2023.2.03Keywords:
Triturus cristatus, Lissotriton vulgaris, habitats, forests, Carpathian Mountains, natural protected areaAbstract
Long-time monitoring studies recently indicated that newts are in decline in many regions. Motivated by the above-mentioned, in the year 2019, we started monitoring the newt populations from the Jiu Gorge National Park (JGNP) in the Romanian Carpathians, 10 years after the previous study on the same topic. Compared with other areas where newts are in decline, we identified new distribution locations of the two newt species which are present in the park. Also, the previously known populations have greatly increased. Thus, the Lissotriton vulgaris population increased 2.58 times in 10 years, and the Triturus cristatus increased 1.80 times in 10 years. At the same time, in areas from JGNP affected by human activities in the past (abandoned quarry and areas adjacent to the railway), the newts extended their range in the last years and occupied artificial aquatic habitats. In the case of the populations from the natural habitat, the temporal dynamics and the ratio between sexes and species followed the same evolution as in the case of other populations from Romania. The increase of newt populations from JGNP in the last 10 years was most probably a consequence of the reduced human pressure, corroborated with the large surface occupied by native forests in the park. Thus, in natural areas, probably the best management measures for both newt species are not represented by direct (invasive) human interventions but by the conservation of the natural habitats used by the newts. A protected area should maintain the conservation status at least at the present level, and if the region is natural, this fact will maintain and also increase the newt and probably other amphibian populations.
References
Arntzen, J. W., & Teunis, S. F. M. (1993). A six year study on the population dynamics of the crested newt (Triturus cristatus) following the colonization of a newly created pond. Herpetol. J, 3, 99-110.
Arntzen, J. W., & Thorpe, R. S. (1999). Italian crested newts (Triturus carnifex) in the Basin of Geneva: distribution and genetic interactions with autochtonous species. Herpetologica, 55, 4, 423-433.
Arntzen, J. W., Abrahams, C., Meilink, W. R. M., Iosif, R., & Zuiderwijk, A. (2017). Amphibian decline, pond loss and reduced population connectivity under agricultural intensification over a 38 year period. Biodivers. Conserv, 26, 1411-1430.
Bogdan, O., & Marinică, I. (2010). Considerations upon the droughts of Oltenia and their effects. Balwois 2010, Orhid, Republic of Macedonia – 25, 29 May 2010: 1-10.
Bogdan, H. V., Badar, L., Goilean, C., Boros, A., & Popovici, A. M. (2012). Population Dynamics of Triturus cristatus and Lissotriton vulgaris (Amphibia) in an aquatic habitat from Banat region, Romania. Herpetologica Romanica, 6, 41-50.
Bogdan, H. V., Ilieș, D., & Gaceu, O. (2013). Conservation implications on present distribution of herpetofauna from plain areas of the Western Banat region, Romania. North-West. J. Zool, 9, 1, 172-177.
Bogdan, H. V., Sas-Kovács, I., & Covaciu-Marcov, S. D. (2014). Herpetofaunistic diversity in Lipova Hills, western Romania: Actual and past causes. Biharean Biologist, 8, 1, 48-52.
Bondar, A., Cicort-Lucaciu, A. Ș., & Sas-Kovács, I. (2018). New distribution records of the Danube crested newt Triturus dobrogicus (Kiritzescu, 1903) in southern Romania. Oltenia. Studii și Comunicări Științele Naturii, 34, 1, 145-148.
Caballero-Diaz, C., Sánchez-Montes, G., Butler, H. M., Vredenburg, V. T., & Martinez-Solano, I. (2020). The role of artificial breeding sites in amphibian conservation: a case study in rural areas in central Spain. Herpetol. Conserv. Bio, 15, 1, 87-104.
Cicort-Lucaciu, A. Ș., David, A., Lezău, O., Pal, A., & Ovlachi, K. (2009). The dynamics of the number of individuals during the breeding period of more L. vulgaris and T. cristatus populations. Herpetologica Romanica, 3, 19-23.
Cicort-Lucaciu, A. Ș., Paina, C., Serac, C. P., & Ovlachi, K. B. (2010). Population dynamics of Lissotriton montandoni and Triturus cristatus species in two aquatic habitats. South-Western Journal of Horticulture, Biology and Environment, 1, 1, 67-75.
Cicort-Lucaciu, A. Ș., Radu, N. R., Paina, C., Covaciu-Marcov, S. D., & Sas, I. (2011). Data on population dynamics of three syntopic newt species from western Romania. Ecologia Balkanica, 3, 2, 49-55.
Cicort-Lucaciu, A. Ș., Cupșa, D., Sucea, F. N., Ferenți, S., & Covaciu-Marcov, S. D. (2020). Litter-dwelling invertebrates in natural and plantation forests in the southern Carpathians, Romania. Baltic For, 26, 1, 323.
Cogălniceanu, D., Székely, P., Samoilă, C., Iosif, R., Tudor, M., Plăiaşu, R., Stănescu, F., & Rozylowicz, L. (2013). Diversity and distribution of amphibians in Romania. ZooKeys, 296, 35-57.
Cohen, J. M., Civitello, D. J., Venesky, M. D., McMahon, T. A., & Rohr, J. R. (2019). An interaction between climate change and infectious disease drove widespread amphibian declines. Global Change Biol, 25, 3, 927-937.
Covaciu-Marcov, S. D., & Sucea, F.-N. (2021). Altered breeding behaviour in some amphibians from an artificial habitat in Jiu Gorge National Park, Romania. Herpetology Notes, 14, 1353-1356.
Covaciu-Marcov, S. D., Cicort-Lucaciu, A. Ş., Dobre, F., Ferenţi, S., Birceanu, M., Mihuţ, R., & Strugariu, A. (2009). The herpetofauna of the Jiului Gorge National Park, Romania. North-West. J. Zool, 5, Supplement 1, S01-S78.
Covaciu-Marcov, S. D., Popovici, P. V., Cicort-Lucaciu, A. Ș., Sas-Kovacs, I., Cupșa, D., & Ferenți, S. (2020). Herpetofauna diversity in the middle of the Southern Carpathians: data from a recent survey (2016-2018) in Cozia National Park (Romania). Eco Mont, 12, 2, 11-21.
Cupșa, D., Telcean, I. C., Cicort-Lucaciu, A. Ș., Sas-Kovács, I., Ferenți, S., & Covaciu-Marcov, S. D. (2020). Newts and fish in the remnants of former wetlands from north-western Romania in front of the same enemy. Oltenia. Studii și Comunicări Științele Naturii, 36, 1, 100-108.
Denoël, M. (2012). Newt decline in Western Europe: highlights from relative distribution changes within guilds. Biodivers. Conserv, 21, 2887-2898.
Denoël, M., & Lehmann, A. (2006). Multi-scale effect of landscape process and habitat quality on newt abundance: implications for conservation. Biol. Conserv, 130, 4, 495-504.
Denoël, M., & Ficetola, G. F. (2008). Conservation of newt guilds in an agricultural landscape of Belgium: the importance of aquatic and terrestrial habitats. Aquat. Conserv, 168, 714-728.
Dobre, F., Cicort-Lucaciu, A. Ș., Dimancea, N., Boroș, A., & Bogdan, H. V. (2009). Research upon the biology and ecology of some newt species (Amphibia) from the Jiu River Gorge National Park. Analele Universității din Craiova, Seria Biologie, Horticultură, Tehnologia prelucrării produselor alimentare, Ingineria mediului, 14, 475-480.
Falaschi, M., Muraro, M., Gibertini, C., Delle Monache, D., Lo Parrino, E., Faraci, F., Belluardo, F., Di Nicola, M. R., Manenti, R., & Ficetola, G. F. (2022). Explaining declines of newts abundance in northern Italy. Freshwater Biol, 67, 1174-1187.
Ficetola, G. F., & De Bernardi, F. (2004). Amphibians in a human-dominated landscape: the community structure is related to habitat features and isolation. Biol. Conserv, 119, 219-230.
Fuhn, I. (1960). “Fauna R.P.R.”, vol. XIV, Fascicola I, Amphibia. Editura Academiei R.P.R., Bucharest, pp. 288. [in Romanian].
Glesener, L., Gräser, P., & Schneider, S. (2022). Conservation and development of great crested newt (Triturus cristatus Laurenti, 1768) populations in the west and south-west of Luxembourg. Bulletin de la Société des Naturalistes Luxembourgeois, 124, 107-124.
Griffiths, R. A., Sewell, D., & McCrea, R. S. (2010). Dynamics of a declining amphibian metapopulation: survival, dispersal and the impact of climate. Biol. Conserv, 143, 2, 485-491.
Gustafson, D. H., Malmgren, J. C., & Mikusiński, G. (2011). Terrestrial habitat predicts use of aquatic habitat for breeding purposes – a study on the great crested newt (Triturus cristatus). Ann. Zool. Fenn, 48, 295-307.
Haubrock, P. J., & Altrichter, J. (2016). Northern crested newt (Triturus cristatus) migration in a nature reserve: multiple incidents of breeding season displacements exceeding 1 km. Herpetological Bulletin, 138, 31-33.
Ile, G. A., & Sucea, F. N. (2018). Artificial habitats serving as shelters for amphibians in rich biodiversity areas: a case in the Jiu Gorge National Park, Romania. South-Western Journal of Horticulture, Biology and Environment, 9, 2, 91-96.
Jarvis, L. E. (2016). Terrestrial ecology of juvenile great crested newts (Triturus cristatus) in a woodland area. Herpetol. J, 26, 287-296.
Kettermann, M., & Fartmann, T. (2023). Quarry ponds are hotspots of amphibian species richness. Ecol. Eng, 190, 106935.
Law 49 / 2011. Lege nr. 49 din 7 aprilie 2011 privind aprobarea Ordonanței de urgență a Guvernului nr. 57/2007 privind regimul ariilor naturale protejate, conservarea habitatelor naturale, a florei şi faunei sălbatice. Publicată în Monitorul Oficial nr. 262 din 13 aprilie 2011. [in Romanian, Romanian law].
Lukanov, S., Doncheva, T., Kostova, N., & Naumov, B. (2021). Effects of selected environmental parameters on the activity and body condition of Buresch’s crested newt (Triturus ivanbureschi) with notes on skin secretions. North-West. J. Zool, 17, 1, 34-38.
Marinică, I., & Marinică, A. F. (2012). Excessively droughty autumn in the south-west of Romania during 2011. Aerul și Apa. Componente ale mediului, 2012, 351-358.
McMenamian, S. K., Hadly, E. A., & Wright, C. K. (2008). Climatic change and wetland desiccation cause amphibian decline in Yellowstone National Park. PNAS, 105, 44, 16988-16993.
Müllner, A. (2001). Spatial patterns of migrating Great Crested Newts and Smooth Newts: the importance of the habitat surrounding the breeding pond. RANA, 4, 279-293.
Pravalie, R., Sîrodoev, I., & Pepteanu, D. (2014). Changes in the forest ecosystems in areas impacted by aridization in south-western Romania. J. Environ. Health Sci, 12, 2.
Samraoi, B., Samraoi, F., Benslimane, N., Alfarhan, A., & Al-Rasheid, K. A. S. (2012). A precipitous decline of the Algerian newt Pleurodeles poireti Gervais, 1835 and other changes in the status of amphibians of Numidia, north-eastern Algeria. Rev. Ecol. - Terre Vie, 67, 1, 71-81.
Sinsch, U., Kaschek, J., & Wiebe, J. (2018). Heavy metacercariae infestation (Parastrigea robusta) promotes the decline of a smooth newt population (Lissotriton vulgaris). Salamandra, 54, 3, 210-221.
Skei, J. K., Folmen, D., Rønning, L., & Ringsby, T. H. (2006). Habitat use during the aquatic phase of the newts Triturus vulgaris (L.) and T. cristatus (Laurenti) in central Norway: proposition for a conservation and monitoring area. Amphibia-Reptilia, 27, 309-324.
Souza, K. S., Fortunato, D. S., Jardim, L., Terribile, L. C., Lima-Ribeiro, M. S., Mariano, C. Á., Pinto-Ledezma, J. N., Loyola, R., Dobrovolski, R., Rangel, T. F., Machado, I. F., Rocha, T., Batista, M. C. G., Lorini, M. L., Vale, M. M., Navas, C. A., Maciel, N. M., Villalobos, F., Olalla-Tarraga, M. A., Rodrigues, J. F. M., Gouveia, S. F., & Diniz-Filho, J. A. F. (2023). Evolutionary rescue and geographic range shifts under climate change for global amphibians. Front. Ecol. Evol, 11, 1038018.
Sucea, F. N. (2019). The second record of a rare lizard species, Darevskia praticola (Eversmann, 1834), in the Jiu Gorge National Park, Romania. Ecologia Balkanica, 11, 1, 239-241.
Sucea, F., Cicort-Lucaciu, A. Ș., Covaciu, R. F., & Dimancea, N. (2014). Note on the diet of two newt species in Jiului Gorge National Park, Romania. Herpetologica Romanica, 8, 11-27.
Sucea, F. N., Păunescu, E. A., Roșca, D. M., Mihuț, R. E., Feczko, T. L., & Iacobescu, I. D. (2022). Data on the distribution of a protected crayfish, Austropotamobius torrentium, in the Jiu Gorge National Park, Carpathian Mountains, Romania. Biharean Biologist 16, 1, 21-26.
Theme no.11.RA/2004 (2004). Studiu privind constituirea Parcului Național Defileul Jiului. Institutul de Cercetări și Amenajări Silvice București. [in Romanian].
Tomescu, N., Ferenţi, S., Teodor, L. A., Covaciu-Marcov, S. D., Cicort-Lucaciu, A. S., & Sucea, F. N. (2011). Terrestrial isopods (Isopoda: Oniscoidaea) from Jiului Gorge National Park, Romania. North-West. J. Zool, 7, 2, 277-285.
von Bülow, B., & Kupfer, A. (2019). Monitoring population dynamics and survival of northern crested newts (Triturus cristatus) for 19 years at a pond in Central Europe. Salamandra, 55, 2, 97-102.
Vuorio, V., Heikkinen, R. K., & Tikkanen, O. P. (2013). Breeding success of the threatened great crested newt in the boreal forest ponds. Ann. Zool. Fenn, 50, 158-169.
Wirga, M., & Majtyka, T. (2015). Herpetofauna of the opencast mines in Lower Silesia (Poland). Fragmenta Faunistica, 58, 1, 65-70.
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