Cortisol in Hair: Do Habitat Fragmentation and Competition with Golden Jackal (Canis aureus) Measurably Affect the Long-Term Physiological Response in European Wildcat (Felis silvestris)?

2021 ◽  
Vol 59 (1) ◽  
Author(s):  
Stefano Filacorda ◽  
Antonella Comin ◽  
Marcello Franchini ◽  
Lorenzo Frangini ◽  
Stefano Pesaro ◽  
...  
Keyword(s):  
Habitat Fragmentation ◽  
Physiological Response ◽  
Golden Jackal ◽  
Felis Silvestris ◽  
Canis Aureus ◽  
European Wildcat

Long-term changes in diet and trophic niche of the European wildcat (Felis silvestris silvestris) in Italy

2015 ◽  
Vol 61 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Fabiola Apostolico ◽  
Francesca Vercillo ◽  
Gianandrea La Porta ◽  
Bernardino Ragni
Keyword(s):  
Trophic Niche ◽  
Felis Silvestris ◽  
Felis Silvestris Silvestris ◽  
European Wildcat ◽  
Long Term Changes

scholarly journals Jackal in hide: detection dogs show first success in the quest for golden jackal (Canis aureus) scats

2020 ◽  
Author(s):  
Jennifer Hatlauf ◽  
Felix Böcker ◽  
Lea Wirk ◽  
Sebastian Collet ◽  
Laurent Schley ◽  
...  
Keyword(s):  
Red Fox ◽  
Golden Jackal ◽  
Accuracy Rate ◽  
Family Structures ◽  
Canis Aureus ◽  
Dna Analyses ◽  
Group Number ◽  
Potential Benefits ◽  
Term Basis

Abstract Golden jackal (Canis aureus) monitoring in central Europe generates more interest and becomes increasingly important with the species’ appearance in areas where it was previously unestablished. For genetic monitoring of golden jackals via scat collection, the distinction of jackal scats from those of related species such as the red fox (Vulpes vulpes) is crucial: if done incorrectly, it can falsify diet studies or inflate costs of DNA analyses. In this study, we tested the potential benefits of using domestic dogs to specifically find jackal scats. We used trained scat detection dogs to locate and identify golden jackal scats in an area of dense shrubland, with the species’ presence previously confirmed via bioacoustic monitoring. On a total of 133 km of transects covering at least two golden jackal groups, two human-dog teams found 34 putative golden jackal scats. A total of 26 of these were successfully genetically analysed, of which 19 were attributed to 13 individual golden jackals, an accuracy rate of 73%. Our results show that detection dogs can successfully differentiate golden jackal scats from other species. This tool can be applied to detect golden jackal presence and establish more reliable estimates of group number and size than previously determined through bioacoustic stimulation. By combining both methods, questions about family structures and kinship, seasonal differences in habitat use and territory sizes can be answered. The regular use of detection dogs can present an efficient method to monitor golden jackals on a long-term basis and to learn more about their behaviour and population dynamics.

scholarly journals Golden jackal (Canis aureus) in the Czech Republic: the first record of a live animal and its long-term persistence in the colonized habitat

ZooKeys ◽  
2016 ◽  
Vol 641 ◽  
pp. 151-163 ◽  
Author(s):  
Petr Pyšek ◽  
Klára Pyšková ◽  
David Storch ◽  
Ivan Horáček ◽  
Ondřej Kauzál
Keyword(s):  
Czech Republic ◽  
First Record ◽  
Golden Jackal ◽  
Live Animal ◽  
The Czech Republic ◽  
Canis Aureus

scholarly journals Habitat use of golden jackals (Canis aureus) in riverine areas of northern Bosnia and Herzegovina

2021 ◽  
Vol 67 (1) ◽  
Author(s):  
Aldin Selimovic ◽  
Eva Maria Schöll ◽  
Larissa Bosseler ◽  
Jennifer Hatlauf
Keyword(s):  
Habitat Use ◽  
Bosnia And Herzegovina ◽  
Agricultural Practices ◽  
Binary Logistic Regression ◽  
Food Sources ◽  
Golden Jackal ◽  
Canis Aureus ◽  
Logistic Regression Models ◽  
Habitat Analysis ◽  
Group Density

AbstractRecently confirmed expansion of golden jackals (Canis aureus) into countries without any previous records poses questions, one of them focusing on the species potential and possibly varying habitat use. In this study, we investigated the presence and distribution of golden jackals in northern Bosnia and Herzegovina, where knowledge about golden jackal distribution and habitat use is still scarce. We used bioacoustic stimulation as a non-invasive tool to gather data on golden jackal presence. Habitat structures potentially selected by the species were assessed at 92 calling stations and used as input for binary logistic regression models. Our study area covered approximately 1150 km2, and bioacoustic stimulation within this area resulted in an estimated minimum relative group density of 3.5 territorial groups per 100 km2. We found territorial groups at distances between 15 and 38 km southwards from the river Sava but always within a maximum range of 3 km to perennial watercourses. Habitat analysis identified shrub vegetation and pastures as structures with a significant effect on the presence of resident golden jackals. Probability that golden jackals answered at calling stations increased with increasing surface area covered with pastures and shrubs. Distances between golden jackal territories and the nearest human settlement were relatively small. Our results indicate that structures like transitional woodland-shrubs and pastures, together with other potential influencing factors like local agricultural practices, low hunting pressure, diverse natural and anthropogenic food sources, could have benefited the settlement of golden jackals in the northern lowlands of Bosnia and Herzegovina.

The Reliance of the Golden Jackal (Canis aureus) on Anthropogenic Foods in winter in Central Bulgaria

Mammal Study ◽  
2013 ◽  
Vol 38 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Evgeniy G. Raichev ◽  
Hiroshi Tsunoda ◽  
Chris Newman ◽  
Ryuichi Masuda ◽  
Dian M. Georgiev ◽  
...  
Keyword(s):  
Golden Jackal ◽  
Canis Aureus

Genetic Differentiation in Isolated Populations of Hakea carinata (Proteaceae)

1998 ◽  
Vol 46 (6) ◽  
pp. 671 ◽  
Author(s):  
G. J. Starr ◽  
S. M. Carthew
Keyword(s):  
Gene Flow ◽  
Habitat Fragmentation ◽  
Gene Diversity ◽  
South Australia ◽  
Similar Species ◽  
Isolated Populations ◽  
Plant Populations ◽  
Evolutionary Condition ◽  
Private Alleles

Fragmentation of the landscape by human activity has created small, isolated plant populations. Hakea carinata F. Muell. ex Meissner, a sclerophyllous shrub, is common in isolated fragments of vegetation in South Australia. This study investigated whether habitat fragmentation has caused restrictions to gene flow between populations. Gene diversity (HT = 0.317) is average for similar species but little is held within populations (HS = 0.168) and 46.9% of gene diversity is accounted for between populations. Estimates of gene flow are NM = 0.270 (based on FST) and NM = 0.129 (based on private alleles). Populations are substantially selfing (t = 0.111). Small isolated populations appears to be a long-term evolutionary condition in this species rather than a consequence of habitat fragmentation; however, population extinctions are occurring. Conservation will require the reservation of many populations to represent the genetic variation present in the species.

scholarly journals Morphometric variation in wolves and golden jackal in India (Mammalia, Carnivora)

2021 ◽  
Vol 9 ◽  
Author(s):  
Yellapu Srinivas ◽  
Yadvendradev Jhala
Keyword(s):  
Canis Lupus ◽  
Sympatric Species ◽  
Golden Jackal ◽  
Body Measurements ◽  
Guard Hair ◽  
Morphometric Variation ◽  
Canis Aureus ◽  
Wild Canids ◽  
Holistic Understanding ◽  
Global Data

Species of Canis (Carnivora, Canidae) have similar morphology and distinguishing sympatric species is challenging. We present data on morphometry of skull, body and hair of three wild Canis species that occur in India, which include two wolves (Indian wolf, Canis lupus pallipes; and Himalayan wolf, Canis himalayensis) and the golden jackal (Canis aureus). A total of 20 cranial and six body measurements and microscopic characteristics of guard hair were analysed, using multivariate ordination to differentiate between species. Cranial measures of the Himalayan wolves were found to be the largest followed by Indian wolves and golden jackals. However, many measures overlapped amongst the three species. Two Principal Components each, for body measures and cranial measures, explained 86 and 91% of the variation in the data, respectively. These Components discriminated the two wolves from golden jackals, but could not distinguish between wolves. Hair medullary patterns were simple and wide type, whereas hair cuticular patterns showed crenate scale margins, near scale distance and irregular wavey scale patterns for all Canis taxa and were not useful to distinguish species. Data reported in this study further contribute to the existing global data on wild canids for a holistic understanding of the variation within the genus and show that distinguishing between all sympatric species from morphology alone may not be possible.

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