Microsciurus alfari

Come leggere il tassoboxProgetto:Forme di vita/Come leggere il tassobox
Come leggere il tassobox
Scoiattolo nano del Centroamerica[1]
Stato di conservazione
Rischio minimo[2]
Classificazione scientifica
DominioEukaryota
RegnoAnimalia
PhylumChordata
ClasseMammalia
OrdineRodentia
SottordineSciuromorpha
FamigliaSciuridae
SottofamigliaSciurinae
TribùSciurini
GenereMicrosciurus
SpecieM. alfari
Nomenclatura binomiale
Microsciurus alfari
(J. A. Allen, 1895)
Areale

Lo scoiattolo nano del Centroamerica (Microsciurus alfari J. A. Allen, 1895) è un piccolo scoiattolo arboricolo originario dell'America centrale e della Colombia.

Tassonomia

Attualmente, gli studiosi riconoscono sei sottospecie di scoiattolo nano del Centroamerica[1]:

Descrizione

Il corpo dello scoiattolo nano del Centroamerica misura 10,8-14,6 cm di lunghezza, la coda 8–13 cm; pesa 72-105 g. È una specie molto piccola, con orecchie corte e naso schiacciato. Il dorso è marrone o bruno-giallastro. Le orecchie, piccole e pelose, e la coda, corta e sottile (ricoperta, nelle aree montane, da una folta pelliccia), sono leggermente orlate di arancio.

Distribuzione e habitat

M. alfari è diffuso dal sud del Nicaragua alla Colombia nord-occidentale. Vive nelle foreste pluviali tropicali, dal livello del mare a 2600 m di quota.

Biologia

Lo scoiattolo nano del Centroamerica si nutre delle sostanze vegetali che riesce a trovare sul tronco degli alberi. Talvolta, è stato visto nutrirsi dei frutti del cosiddetto «mandorlo di montagna» (Dipteryx panamensis). Di abitudini diurne, è solitario ed è stato visto associarsi ad altri scoiattoli, come gli scoiattoli dalla coda rossa (Sciurus granatensis) e quelli variegati (Sciurus variegatoides). Tra i suoi principali nemici vi sono predatori alati come la poiana semipiombata (Leucopternis semiplumbea).

Conservazione

Sebbene sia piuttosto suscettibile alla deforestazione, è ancora molto diffuso e la IUCN lo inserisce tra le specie a rischio minimo.

Note

  1. ^ a b (EN) D.E. Wilson e D.M. Reeder, Microsciurus alfari, in Mammal Species of the World. A Taxonomic and Geographic Reference, 3ª ed., Johns Hopkins University Press, 2005, ISBN 0-8018-8221-4.
  2. ^ (EN) Koprowski, J., Roth, L., Emmons, L., Timm, R., McCarthy, T. & Samudio, R. 2008, Microsciurus alfari, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.

Altri progetti

  Portale Mammiferi: accedi alle voci di Wikipedia che trattano di mammiferi

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