| International illegal trade in wildlife: threats and US policy LS Wyler, PA Sheikh Congressional Research Service, 2008 | 297 | 2008 |
| Carbon sequestration in forests RW Gorte DIANE Publishing, 2009 | 150 | 2009 |
| Deforestation and climate change RW Gorte, PA Sheikh Congressional Research Service, 2010 | 105 | 2010 |
| Debt-for-nature initiatives and the Tropical Forest Conservation Act (TFCA): Status and implementation PA Sheikh Updated July 24, 13, 2018 | 79* | 2018 |
| Water buffalo and cattle ranching in the Lower Amazon Basin: Comparisons and conflicts PA Sheikh, FD Merry, DG McGrath Agricultural systems 87 (3), 313-330, 2006 | 79 | 2006 |
| The impact of Hurricane Katrina on biological resources PA Sheikh Congressional Research Service, the Library of Congress, 2005 | 39 | 2005 |
| The role of informal contracts in the growth of small cattle herds on the floodplains of the Lower Amazon FD Merry, PA Sheikh, DG McGrath Agriculture and Human Values 21, 377-386, 2004 | 25 | 2004 |
| Illegal logging: background and issues PA Sheikh | 23 | 2007 |
| International trophy hunting PA Sheikh, LF Bermejo Washington, DC: Congressional Research Service, 2019 | 22 | 2019 |
| Management of the Colorado River: Water allocations, drought, and the federal role CV Stern, PA Sheikh . Congressional Research Service, 2021 | 19 | 2021 |
| Effects of land-use and hydroperiod on aboveground biomass and productivity of secondary Amazonian floodplain forests CM Lucas, J Schöngart, P Sheikh, F Wittmann, MTF Piedade, DG McGrath Forest ecology and management 319, 116-127, 2014 | 19 | 2014 |
| Security and the Environment in Pakistan B Vaughn, NT Carter, PA Sheikh, R Johnson Congressional Research Service, 2010 | 16 | 2010 |
| Airplane noise: A pervasive disturbance in Pennsylvania Parks, USA PA Sheikh, C Uhl Journal of Sound and Vibration 274 (1-2), 411-420, 2004 | 16 | 2004 |
| The impacts of water buffalo and cattle ranching on the Lower Amazon floodplain: An ecological and socio-economic comparison PA Sheikh The Pennsylvania State University, 2002 | 14 | 2002 |
| International illegal trade in wildlife LS Wyler, PA Sheikh Novinka Books, 2008 | 12 | 2008 |
| Climate change adaptation by federal agencies: An analysis of plans and issues for congress JA Leggett Congressional Research Service, 2015 | 10 | 2015 |
| How livestock and flooding mediate the ecological integrity of working forests in Amazon River floodplains CM Lucas, P Sheikh, PR Gagnon, DG McGrath Ecological Applications 26 (1), 190-202, 2016 | 9 | 2016 |
| South Florida Ecosystem Restoration and the Comprehensive Everglades Restoration Plan PA Sheikh, NT Carter, Resources, Science, and Industry Division Congressional Research Service, the Library of Congress, 2006 | 8 | 2006 |
| Western water resource issues BA Cody, PA Sheikh | 8 | 2006 |
| The Impact of Hurricane Katrina on Biological Resources. Congressional Research Service Report to Congress PA Sheikh Order Code RL33117. Washington, DC, 2005 | 7 | 2005 |
