Data from: Characterising bird-keeping user-groups on Java reveals distinct behaviours, profiles and potential for changeHarry Marshall, Nigel Collar, Alexander Lees, Andrew Moss, Pramana Yuda & Stuart Marsden
1. Over 70 million cage-birds are kept across 12 million households on the island of Java, Indonesia, fuelling serious concerns for the health of regional wild bird populations. Understanding the behaviours, preferences and demographic profiles of bird-keepers will guide attempts to reduce demand for wild birds and hence the impact of trade on wild populations and their host ecosystems. 2. We profile three songbird-keeping user-groups based on interviews of nearly one thousand people across Java:...
Data from: Local-scale tree and shrub diversity improves pollination services to shea trees in tropical West African parklandsAoife Delaney, Assita Dembele, Issa Nombre, Franck Gnane Lirasse, Elaine Marshall, Adama Nana, Juliet Vickery, Cath Tayleur & Jane Stout
Shea (Vitellaria paradoxa) trees bear fruit and seeds of considerable economic, nutritional and cultural value in the African Sudano-Sahelian zone. In much of West Africa, shea exists within an agroforestry system referred to as “Parkland”, where social changes, including migration, have resulted in expanding areas of crop cultivation, reductions in both the area of fallow land and the duration of fallow periods, and reduced diversity of habitats and woody species. Shea benefits strongly from pollination...
Protected by dragons: density surface modeling confirms large population of the critically endangered Yellow-crested Cockatoo on Komodo islandAnna Reuleaux, Benny A. Siregar, Nigel J. Collar, Maria R. Panggur, Ani Mardiastuti, Martin J. Jones & Stuart J. Marsden
Intense trapping of the critically endangered Yellow-crested Cockatoo Cacatua sulphurea for the International pet trade has devastated its populations across Indonesia such that populations >100 individuals remain at only a handful of sites. We combined distance sampling with density surface modeling (DSM) to predict local densities and estimate total population size for one of these areas, Komodo Island, part of Komodo National Park (KNP) in Indonesia. We modeled local density based on topography (topographic wetness...
Various benefits (e.g. tracking of resources and of climate niche) and costs (e.g. distance travelled) are hypothesized to drive seasonal animal migrations. Until now, these potential factors have been investigated together at the species level, but migratory movements are made at the individual level, leading to intraspecific variability. Here, we use ringing/recovery data from 1308 individuals belonging to thirteen North American bird species to analyse patterns in intraspecific variability of migratory destinations in order to...
Data from: Impacts of habitat on butterfly dispersal in tropical forests, parks and grassland patches embedded in an urban landscapeAnuj Jain, Simon Kee Mun Chan, Petr Vlasanek & Edward Layman Webb
Dispersal distances of 17 species of butterflies in tropical Singapore were significantly greater in forest than in urban habitat. Butterflies in urban plots frequently moved within suitable habitat (park/grassland) patches but rarely crossed non-habitat patches suggesting potential isolation and a need for urban corridors.
Neo-sex chromosomes are found in many taxa, but the forces driving their emergence and spread are poorly understood. The female-specific neo-W chromosome of the African monarch (or queen) butterfly Danaus chrysippus presents an intriguing case study because it is restricted to a single ‘contact zone’ population, involves a putative colour patterning supergene, and co-occurs with infection by the the male-killing endosymbiont Spiroplasma. We investigated the origin and evolution of this system using whole genome sequencing....
University of Cambridge2
Manchester Metropolitan University2
Centre d'Ecologie Fonctionnelle et Evolutive1
University of Ouagadougou1
Royal Society for the Protection of Birds1
National Parks and Wildlife Service1
Atma Jaya University Yogyakarta1
University of Edinburgh1