Morphological analysis of the aoudad: the introduced population is well adapted to the Mediterranean habitat

Autor: Pavao Gančević, Krešimir Kavčić, Nikica Šprem
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of Central European Agriculture
Volume 21
Issue 2
Journal of Central European Agriculture, Vol 21, Iss 2, Pp 431-437 (2020)
ISSN: 1332-9049
Popis: The aoudad is a bovid species native to North Africa and highly adaptable to different environments. Although some morphological data of aoudad has been published, the research mostly dealt with measurements taken from captive populations. Therefore, morphological data of free-ranging populations in their non-native habitat is largely unknown. The present study analysed the important morphometric parameters in a non- native Mediterranean population of aoudad. Body and horn measurements were taken on 30 free-range aoudads (20 M, 10 F) legally culled from 2014 to 2019. A descriptive analysis of the quantitative body and horn measurements was performed and an insight into population growth rates was provided. The Mediterranean population of aoudad showed higher mean values of investigated body and horn measurements and higher growth rates than in other research, ranging from ca. 2 – 10% for most of the measurements. The results suggest that the investigated population is well adapted to Mediterranean habitat which allowed aoudad to notably allocate energy to both body and horn development. This research is a contribution to knowledge about how specific habitat might shape aoudad population life-history traits.
Grivasti skakač je autohtoni šupljorožac Sjeverne Afrike i iznimno prilagodljiv različitim staništima. Iako su morfološki podaci grivastog skakača objavljivani, istraživanja su se uglavnom oslanjala na mjere uzete iz populacija u zatočeništvu. Zbog toga, morfološki podaci slobodnih populacija grivastog skakača u stranim staništima su uvelike nepoznati. U ovom istraživanju analizirani su važni morfometrijski parametri alohtone Mediteranske populacije grivastog skakača. Prikupljene su mjere tijela i rogova 30 grivastih skakača (20 M, 10 Ž) legalno odstreljenih između 2014. i 2019. godine. Napravljena je deskriptivna analiza kvantitativnih mjera tijela i rogova i pružen osvrt na stopu rasta populacije. Mediteranska populacija grivastog skakača pokazala je više srednje vrijednosti istraživanih mjera tijela i rogova te snažniju stopu rasta za oko 2 – 10% nego što je prikazano u ostalim istraživanjima. Rezultati sugeriraju da je istraživana populacija dobro prilagođena Mediteranskom staništu koje je omogućilo značajno usmjerenje energije u tjelesni razvoj i razvoj rogova. Ovo istraživanje doprinosi znanju kako posebnosti staništa mogu oblikovati značajke životnog ciklusa populacija grivastog skakača.
Databáze: OpenAIRE