1. Bates , D. Maechler , M. Bolker , B. 2013 lme4: Linear mixed-effects models using S4 classes. R package version 0.999999-2 http://CRAN.R-project.org/package=lme4
2. Bat mobility and roosts in a fragmented landscape in Central Amazonia, Brazil;Bernard;Biotropica,2003
3. CIA World Factbook 2011 Central Intelligence Agency Washington, DC https://www.cia.gov/library/publications/the-world-factbook/rankorder/2003rank.html
4. Country Lighting Assessment en.lighten initiative: a partnership between the United Nations Environment Programme, OSRAM AG, Philips Lighting, Global Environment Facility and The National Lighting Test Centre Paris, France http://www.enlighten-initiative.org/portal/CountrySupport/CountryLightingAssessments/tabid/104272/Default.aspx