The genus Apatema Walsingham, 1900 in the Canary Islands and Madeira is revised based on external morphology, genitalia DNA barcodes. We recognize 18 species, 13 of which are described as new: confluellum Falck & Karsholt, sp. n. (Spain: Tenerife), minimum Lanzarote Fuerteventura), lapalmae La Palma), sallyae Gran Canaria), lanzarotae Lanzarote), mixtum pseudolucidum griseum grancanariae br...

When it comes to exploiting natural resources, islands have limitations due the quantity of these resources and potential for harm ecosystem if exploitation is not done in a sustainable manner. This article presents study water footprint different drinking collection facilities wastewater treatment Canary Islands, order determine blue, green, grey footprints each case. The results show high per...

There is now considerable evidence that female choice drives the evolution of song complexity in many songbird species. However, the underlying basis for such choice remains controversial. The developmental stress hypothesis suggests that early developmental conditions can mediate adult song complexity by perturbing investment in the underlying brain nuclei during their initial growth. Here, we...

New neurons are constantly added to the high vocal center (HVC) of adult male canaries, Serinus canaria. Singing and testosterone (T) are known to promote this addition, but it is not known whether either variable can act on its own and what is their effect when acting together. We studied this question by castrating adult male canaries in late summer and quantifying their song in early fall. I...

The preference of female songbirds for particular traits in the songs of courting males has received considerable attention, but the relationship of preferred traits to male quality is poorly understood. Female domestic canaries (Serinus canaria, Linnaeus) preferentially solicit copulation with males that sing special high repetition rate, wide-band, multi-note syllables, called 'sexy' or A-syl...