Capra sibirica

Lo stambecco siberiano (Capra sibirica (Pallas, 1776)) è una specie di stambecco diffusa in Asia centrale e settentrionale.^[2]
Fino a non molto tempo fa, veniva considerata una sottospecie dello stambecco alpino (Capra ibex), ma studi recenti hanno fatto emergere differenze tali da elevare questi animali (così come lo stambecco nubiano (Capra nubiana) al rango di specie a sé stante.^[1]

Come leggere il tassobox Stambecco siberiano
Capra sibirica
Stato di conservazione
Rischio minimo^[1]
Classificazione scientifica
Dominio	Eukaryota
Regno	Animalia
Sottoregno	Eumetazoa
Superphylum	Deuterostomia
Phylum	Chordata
Subphylum	Vertebrata
Infraphylum	Gnathostomata
Superclasse	Tetrapoda
Classe	Mammalia
Sottoclasse	Theria
Infraclasse	Eutheria
Superordine	Laurasiatheria
(clade)	Ungulata
Ordine	Artiodactyla
Sottordine	Ruminantia
Infraordine	Pecora
Famiglia	Bovidae
Sottofamiglia	Caprinae
Genere	Capra
Specie	C. sibirica
Nomenclatura binomiale
Capra sibirica (Pallas, 1776)
Sinonimi
Capra sibrica (Pallas, 1776)
Areale

In verde scuro l'areale di C. sibirica

Descrizione modifica

Le dimensioni ed il peso variano anche di molto non solo a seconda del sesso, ma anche da individuo a individuo; l'altezza oscilla fra i 65 ed i 110 cm, mentre il peso va dai 30 ai 130 kg.

Il colore del pelo è marrone chiaro, che con l'età, specialmente nei maschi, tende a scurirsi sempre più e ad incanutirsi.

femmina di stambecco siberiano

Sia la "barbetta" che le corna sono presenti in entrambi i sessi; tuttavia, nei maschi le corna crescono fino ad oltre 130 cm, mentre nelle femmine di norma non oltrepassano i 20 cm e sono solo poco incurvate.

Biologia modifica

Comportamento modifica

Questi animali tendono a vivere ad alte quote, spesso ai limiti della linea di vegetazione; tuttavia, in inverno scendono a quote più basse alla ricerca di cibo; se necessario, scavano la neve ed il ghiaccio per scovare eventuali muschi o licheni nascosti dal manto nevoso. Nonostante l'habitat impervio che colonizzano, devono stare costantemente in guardia dai predatori, quali lupi, orsi e leopardi delle nevi.

Riproduzione modifica

I maschi tendono a raccogliere harem attorno a sé; la grandezza dell'harem è direttamente proporzionale alla forza ed all'aggressività del maschio dominante. Le femmine hanno una gestazione di 5/6 mesi, al termine dei quali mettono al mondo un unico cucciolo (a volte anche due o tre), che diviene sessualmente maturo attorno ai 2 anni d'età. L'aspettativa di vita di questi animali è di oltre 16 anni.

Distribuzione e habitat modifica

È diffuso in Afghanistan, Pakistan, Kazakistan, Kirghizistan, Cina, India, Mongolia e Russia, dove predilige gli habitat prativi a quote piuttosto elevate.

Note modifica

^ ^a ^b (EN) Foster G., 2008, Capra sibirica, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.
^ (EN) D.E. Wilson e D.M. Reeder, Capra sibirica, in Mammal Species of the World. A Taxonomic and Geographic Reference, 3ª ed., Johns Hopkins University Press, 2005, ISBN 0-8018-8221-4.

Bibliografia modifica

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