SUPR
Historical demography of the Paradise Crow (Lycocorax pyrrhopterus)
Dnr:

NAISS 2023/23-537

Type:

NAISS Small Storage

Principal Investigator:

Ulf Johansson

Affiliation:

Naturhistoriska riksmuseet

Start Date:

2023-11-01

End Date:

2024-11-01

Primary Classification:

10615: Evolutionary Biology

Webpage:

Allocation

Abstract

This project investigate the origin and historical demography of the Paradise Crow (Lycocorax pyrrhoptera). This project is closely associated with Martin Irestedt’s genomic studies on the Birds-of Paradise (VR 2019-03900) and form an integrated part of his project on the evolutionary history of this group. It is, however, also a part of an independent study, led by the PI, on the historical build-up of the avifauna of Halmahera. The Paradise Crow is endemic to Halmahera in the Moluccas and a few islands immediately south of this island. There are some morphological differences between the populations on the different islands, and some recent studies suggest that the population on the island of Obi constitute a distinct species. Early divergence time estimates suggest that the Paradise Crow diverged from its closest relatives, the manucodes on New Guinea, approximately 17 million years ago, indicating a rather long time of isolation on this island. The present study aims at refining these divergence times estimates using genome data and to examine how the population has evolved during this time period, both in term of historical demography and local isolation, leading up to the population structure seen today.