Journals / Turkish Journal of Zoology / 2015 / Cilt: 39 - Sayı: 1

Life history traits in Bufotes variabilis (Pallas, 1769) from 2 different altitudes in Turkey

Pages
153–159
Publication Date
2015-03-15
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In addition, a significant positive correlation was found between age and body measurements (SVL and body mass) in both males and females of the populations.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Life history characteristics (e.g., longevity, age at maturity, body size, and body mass) of the green toad, Bufotes variabilis, were investigated from 2 populations inhabiting different altitudes (Çankırı, 960 m a.s.l., n = 57; Adana, 13 m a.s.l., n = 52) in Turkey.
📊
Key Findings & Data:The oldest individual was 11 years old (range: 4-11 years) in the highland population, while the oldest individual was 6 years old in the lowland population (range: 2-6 years).
💡
Conclusion & Impact:In addition, a significant positive correlation was found between age and body measurements (SVL and body mass) in both males and females of the populations.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Bufotes variabilis · life history traits · age structure

Abstract

Life history characteristics (e.g., longevity, age at maturity, body size, and body mass) of the green toad, Bufotes variabilis, were investigated from 2 populations inhabiting different altitudes (Çankırı, 960 m a.s.l., n = 57; Adana, 13 m a.s.l., n = 52) in Turkey. Age was determined using skeletochronology. The oldest individual was 11 years old (range: 4-11 years) in the highland population, while the oldest individual was 6 years old in the lowland population (range: 2-6 years). Sexual maturity was estimated at 3-4 years in the highland population and 2-3 years in the lowland population by the skeletochronological pattern. Mean body length was found to be 70.41 and 69.42 mm and 54.18 and 56.11 mm for females and males of the highland and the lowland populations, respectively. While mean body mass of the females and males from the highland population was 44.83 and 42.73 g, it was 19.09 and 19.66 g in the lowland population, respectively. Mean age, SVL, and body mass in the highland population were found to be significantly higher than in the lowland population. Colder climate, sufficient food availability, less human impact, and lower predator density in the highland population may explain the differences between the 2 populations. In addition, a significant positive correlation was found between age and body measurements (SVL and body mass) in both males and females of the populations.

Özet

Life history characteristics (e.g., longevity, age at maturity, body size, and body mass) of the green toad, Bufotes variabilis, were investigated from 2 populations inhabiting different altitudes (Çankırı, 960 m a.s.l., n = 57; Adana, 13 m a.s.l., n = 52) in Turkey. Age was determined using skeletochronology. The oldest individual was 11 years old (range: 4-11 years) in the highland population, while the oldest individual was 6 years old in the lowland population (range: 2-6 years). Sexual maturity was estimated at 3-4 years in the highland population and 2-3 years in the lowland population by the skeletochronological pattern. Mean body length was found to be 70.41 and 69.42 mm and 54.18 and 56.11 mm for females and males of the highland and the lowland populations, respectively. While mean body mass of the females and males from the highland population was 44.83 and 42.73 g, it was 19.09 and 19.66 g in the lowland population, respectively. Mean age, SVL, and body mass in the highland population were found to be significantly higher than in the lowland population. Colder climate, sufficient food availability, less human impact, and lower predator density in the highland population may explain the differences between the 2 populations. In addition, a significant positive correlation was found between age and body measurements (SVL and body mass) in both males and females of the populations.

🔖

Cite This Article

ALTUNIŞIK, A., ÖZDEMİR, N. (2015). Life history traits in Bufotes variabilis (Pallas, 1769) from 2 different altitudes in Turkey. Turkish Journal of Zoology, Cilt: 39 - Sayı: 1, 153–159. https://ajindex.com/articles/176959

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (15)

  1. Adams DC, Church JO (2008). Amphibians do not follow Bergmann’s rule. Evolution 62: 413–420.
  2. Altunışık A, Özdemir N (2013). Body size and age structure of a highland population of Hyla orientalis Bedriaga, 1890, in northern Turkey. Herpetozoa 26: 49–55.
  3. AmphibiaWeb (2014). Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. Available at: http://amphibiaweb.org/. (Accessed: 2014).
  4. Ashkavandi S, Gharzi A, Abbasi M (2012). A skeletochronological estimation of age structure in a population of the Bufo viridis (Anuran: Amphibia) in Central Zagros Iran. Asian J Exp Biol Sci 3: 99–104.
  5. Ashton KG (2002). Do amphibians follow Bergmann’s rule? Can J Zool 80: 708–716.
  6. Berrigan D, Charnov EL (1994). Reaction norms for age and size at maturity in response to temperature: a puzzle for life- historians. Oikos 70: 474–478.
  7. Caetano MH, Castanet J (1993). Variability and microevolutionary patterns in Triturus marmoratus from Portugal: age, size, longevity and individual growth. Amphibia-Reptilia 14: 117– 129. Castellano S, Rosso A, Doglio S, Giacoma C (1999). Body size and calling variation in the green toad (Bufo viridis). J Zool 248: 83–90.
  8. Castanet J, Smirina EM (1990). Introduction to the skeletochronological method in amphibians and reptiles. Ann Sci Nat Zool 11: 191–196.
  9. Feder ME, Burggren WW (1992). Environmental Physiology of the Amphibians. Chicago, IL, USA: University of Chicago Press.
  10. Ficetola GF, Scali S, Denoël M, Montinaro G, Vukov TD, Zuffi MAL, Padoa-Schioppa E (2010). Ecogeographical variation of body size in the newt Triturus carnifex: comparing the hypotheses using an information-theoretic approach. Global Ecol Biogeogr 19: 485–495.
  11. Frost DR (2013). Amphibian Species of the World: an Online Reference. Version 6.0 (17 February 2014). Electronic database accessible at: http://research.amnh.org/herpetology/amphibia/index.html.
  12. Gibbons MM, McCarthy TK (1984). Growth, maturation and survival of frogs Rana temporaria L. Ecography 7: 419–427.
  13. Gokhelashvili RK, Tarkhnishvili DN (1994). Age structure of six Georgian anuran populations and its dynamics during two consecutive years. Herpetozoa 7: 11–18.
  14. Gül S, Özdemir N, Üzüm N, Olgun K, Kutrup B (2011). Body size and age structure of Pelophylax ridibundus populations from two different altitudes in Turkey. Amphibia-Reptilia 32: 287–292.
  15. Hasumi M (2010). Age, body size, and sexual dimorphism in size and shape in Salamandrella keyserlingii (Caudata: Hynobiidae). Ev