Canary long-eared
| Canary long-eared | ||||||||||||
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Canary long-eared long-eared ( Plecotus teneriffae ) |
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| Plecotus teneriffae | ||||||||||||
| Barrett-Hamilton , 1907 |
The Canarian long-eared bat ( Plecotus teneriffae ) is a species of bat from the genus of long-eared bats ( Plecotus ) within the smooth-nosed family (Vespertilionidae).
features
With a head-trunk length of 46 to 57 mm, a tail length of 46 to 52 mm and a forearm length of 40 to 46 mm, the Canary Long-eared Long-eared is somewhat larger than the two European species Brown Long-eared ( Plecotus auritus ) and Gray Long-eared ( Plecotus austriacus ). Their fur as well as the ears, the tragus , the face and the flight membranes are all dark gray in color, with the belly being significantly lighter than the back. The ear is 39 to 41 mm long.
Compared with the other two European long-eared species, it has features such as the thumb length of 5.5 to 6.9 mm and the shape of the baculum , which are more similar to the brown long-eared, while most skull dimensions correspond to the gray long-eared.
distribution and habitat
The bat is endemic to the Canary Islands , more precisely to the islands of Tenerife , La Palma and El Hierro . Deposits are assumed for La Gomera .
It occurs mainly in the altitudes of the islands up to an altitude of 2,300 meters, both in the laurel forests and in the rocky areas and the localities. Their quarters are located in volcanically formed lava caves and crevices, but can also be present in buildings.
Way of life
The bats feed on butterflies and other large insects, including cutworms (Noctuidae) Spanner (Geometridae), Julia Butterfly (Satyrinae) and longhorn beetles (Cerambycidae). They are active from dusk until morning.
The mating season of the Canary Islands long-eared ear begins in September. Maternity roosts with up to 40 females are formed in June and July . The females probably only reach sexual maturity in the second year of life and probably give birth to a young animal in one reproductive period.
No data are available on migrations of the species, nor on hibernation. However, activities were observed in a cave on Teide at -3 ° C.
Systematics
It was systematically listed as a subspecies of the gray long-eared ear before its species status was granted. In some more recent classifications it is combined with the Balkan long-eared ( Plecotus kolombatovici ) and the Northwest African long-eared ( Plecotus gaisleri ) to form a common species, Plecotus teneriffae .
supporting documents
- ↑ a b c d e f g Wilfried Schober, Eckhard Grimmberger: The bats of Europe - know, determine, protect. 2nd updated edition, Franckh-Kosmos Verlags-GmbH, Stuttgart 1998; Pages 190-191. ISBN 3-440-07597-4 .
literature
- Wilfried Schober, Eckhard Grimmberger: The bats of Europe - know, determine, protect. 2nd updated edition, Franckh-Kosmos Verlags-GmbH, Stuttgart 1998; Pages 190-191. ISBN 3-440-07597-4 .
Web link
- Plecotus teneriffae inthe IUCN Red List of Threatened Species 2013.1. Posted by: Aulagnier, S., Juste, J., Palmeirim, J. & Alcaldé, JT, 2008. Retrieved October 13, 2013.