Morphometric Characteristics of the Golden Jackal Populations in Eastern Croatia and Eastern Serbia

Bošković, Ivica; Ozimec, Siniša; Šperanda, Marcela; Šprem, Nikica; Degmečić, Dražen; Čurović, Milić; Spalević, Velibor; Florijančić, Tihomir

doi:10.17707/agricultforest.61.3.06

Cited by 3 publications

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“…The present analysis of the cranial sexual dimorphism in the European golden jackal (C. a. moreoticus) populations from the southeastern part of its European range has shown strong differentiation between sexes. This outcome corresponds with the previous studies on differences in size and shape of jackal skulls (Stoyanov 2012;Bošković 2015;Markov et al 2017;Porobić 2016;Rezić et al 2017). Present results confirm that any future analyses aiming to detect and assess the degree of craniometrical similarity and distinction in golden jackals in Europe should be carried out separately by sex.…”

Section: Discussionsupporting

confidence: 91%

“…The inter-population craniometric differentiation recorded in the individuals of the golden jackal inhabiting Bulgaria, Serbia and Hungary corresponds to the morphological difference revealed between the individuals of this species from two distant populations living in eastern Croatia and eastern Serbia (Bošković 2015). The degree of craniological similarity recorded among golden jackals inhabiting Eastern (southern and southwestern Bulgaria) and Western Balkans (Dalmatia, Croatia) was low (Kryśtufek & Tvrtkovic 1990;Markov et al 2017) and revealing the craniometric heterogeneity and differentiation of the populations from Balkan Peninsula.…”

Section: Discussionmentioning

confidence: 54%

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Phenetic similarity of European golden jackal (Canis aureus moreoticus) populations from southeastern Europe based on craniometric data

et al. 2017

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 54%

Phenetic similarity of European golden jackal (Canis aureus moreoticus) populations from southeastern Europe based on craniometric data

et al. 2017

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Sexual dimorphism in the Hungarian golden jackal population: analysing body and skull size and shape

Csányi,

Sándor

2024

Mamm Biol

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Defining species within the Canidae family is challenging due to morphological convergence, behavioral plasticity, traditional taxonomic limitations, and possible hybridisation. This challenge is timely with the recent population and range expansion of the golden jackal (Canis aureus). Exploring their morphological data and sexual dimorphism is essential for identifying factors driving their success in new habitats. The proven hybridization of golden jackals with dogs and wolves may affect species description, population dynamics, and genetic diversity, impacting conservation strategies. This study, for the first time, conducts a morphometric analysis of golden jackals in Somogy County, Hungary, to prove sexual size dimorphism (SSD) in body and skull and sexual shape dimorphism (SShD) in skull across juvenile and adult age groups. 719 golden jackals (362 females and 357 males) were collected between January 2021 and January 2023. Descriptive statistics revealed significant SSD in body and skull measurements among both age groups, with males generally larger than females, particularly in body mass (11.72% in juveniles and 13.37% in adults). Most skull dimensions differed significantly between sexes and age groups, except for foramen magnum height, foramen magnum width, and postorbital breadth among juveniles and foramen magnum height and postorbital breadth among adults. We used principal component analyses (PCA) on raw dimension data and the log shape ratio method to extract shape information. Linear discriminant analysis (LDA) explored skull SShD between sexes. Notably, our study achieved over 71% accuracy in sex classification, illustrating the clear presence of SShD of the skull in golden jackals across both age groups. Our study provides a comprehensive database of golden jackals in the overpopulated Hungarian habitat, which will be helpful for further research on ecology, behavior, and conservation management.

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Morphometric Variations in Golden Jackal (Canis aureus) in Somogy County, Hungary

Csányi,

Sándor

2023

Preprint

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The golden jackal (Canis aureus) is a canid species broadly distributed across Europe, including Hungary, where its population has increased exponentially in recent decades. Despite its expanding range and ecological relevance, comprehensive morphometric studies on the golden jackal in Hungary are lacking. Skull and body morphologies represent population/individual traits, genetic distances, environmental impacts, and growth variables, making morphological study essential. We conducted Hungary's first comprehensive body and skull morphometry examination of golden jackals.Between January 2021 and January 2023, we performed morphometric measurements on 754 golden jackals at two developmental stages, juveniles and adults, of different sexes (male and female) in Somogy County, Hungary. We found evidence of sexual dimorphism in all seven body measurements, which were greater in males than in females. We also demonstrated sexual dimorphism in most craniometric measurements (19/21), which were also larger in males. Most skulls differed significantly in size between the sexes and age groups, whereas postoperative breadth and foramen magnum height were not significantly different. Our results can contribute to a better understanding the ecology, behavior, and adaptation of golden jackals in the overpopulated Hungarian habitat, providing valuable insights for future conservation and management efforts."

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Morphometric Characteristics of the Golden Jackal Populations in Eastern Croatia and Eastern Serbia

Cited by 3 publications

References 1 publication

Phenetic similarity of European golden jackal (Canis aureus moreoticus) populations from southeastern Europe based on craniometric data

Phenetic similarity of European golden jackal (Canis aureus moreoticus) populations from southeastern Europe based on craniometric data

Sexual dimorphism in the Hungarian golden jackal population: analysing body and skull size and shape

Morphometric Variations in Golden Jackal (Canis aureus) in Somogy County, Hungary

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