| Sexually distinct daily activity patterns of Blue-eyed Shags in Antarctica NP Bernstein, SJ Maxson The Condor 86 (2), 151-156, 1984 | 61 | 1984 |
| Sequence-based molecular phylogenetics and phylogeography of the American box turtles (Terrapene spp.) with support from DNA barcoding BT Martin, NP Bernstein, RD Birkhead, JF Koukl, SM Mussmann, ... Molecular Phylogenetics and Evolution 68 (1), 119-134, 2013 | 55 | 2013 |
| Home range and philopatry in the ornate box turtle, Terrapene ornata ornata, in Iowa NP Bernstein, RJ Richtsmeier The American midland naturalist 157 (1), 162-174, 2007 | 55 | 2007 |
| Thermal environment of overwintering ornate box turtles, Terrapene ornata ornata, in Iowa NP Bernstein, RW Black The American midland naturalist 153 (2), 370-377, 2005 | 45 | 2005 |
| Reproductive energetics of Blue-eyed Shags in Antarctica NP Bernstein, SJ Maxson The Wilson Bulletin, 450-462, 1985 | 35 | 1985 |
| IMPACT OF UNFAVORABLE ICE CONDITIONS ON BIRD PRODUCTIVITY AT PALMER-STATION DURING THE 1977-78 FIELD SEASON DF Parmelee, N Bernstein, DR Neilson Antarctic Journal of the United States 13 (4), 146-147, 1978 | 27 | 1978 |
| Kleptoparasitism by south polar skuas on blue-eyed shags in Antarctica SJ Maxson, NP Bernstein The Wilson Bulletin, 269-281, 1982 | 26 | 1982 |
| Behaviour of the Antarctic Blue-eyed Shag Phalacrocorax atriceps bransfieldensis NP Bernstein, SJ Maxson Notornis 29, 197-207, 1982 | 26 | 1982 |
| Breeding season time budgets of the southern black-backed gull in Antarctica SJ Maxson, NP Bernstein The Condor 86 (4), 401-409, 1984 | 24 | 1984 |
| Absence of Wing-Spreading Behavior in the Antarctic Blue-Eyed Shag (Phalacrocorax atriceps bransfieldensis) NP Bernstein, SJ Maxson The Auk 99 (3), 588-589, 1982 | 24 | 1982 |
| Notes on moult and seasonably variable characters of the Antarctic blue-eyed shag Phalacrocorax atriceps bransfieldensis NP Bernstein, SJ Maxson Notornis 28, 35-39, 1981 | 21 | 1981 |
| Ecological problems with Iowa's invasive and introduced fishes NP Bernstein, JR Olson Journal of the Iowa Academy of Science: JIAS 108 (4), 185-209, 2001 | 20 | 2001 |
| Nesting of red-winged blackbirds in cattails and common reed grass in Mentor Harsh NP Bernstein, EB McLean | 19 | 1980 |
| Changes in a prairie bird population from 1940 to 1989 NP Bernstein, KK Baker, SR Wilmot Journal of the Iowa Academy of Science: JIAS 97 (4), 115-120, 1990 | 16 | 1990 |
| Migration, Gene Flow, and Genetic Diversity Within and Among Iowa Populations of Ornate Box Turtles (Terrapene ornata ornata) RJ Richtsmeier, NP Bernstein, JW Demastes, RW Black Chelonian Conservation and Biology 7 (1), 3-11, 2008 | 14 | 2008 |
| Declining populations of yellow mud turtles (Kinosternon flavescens) in Iowa, Illinois, and Missouri JL Christiansen, NP Bernstein, CA Phillips, JT Briggler, D Kangas The Southwestern Naturalist 57 (3), 304-313, 2012 | 12 | 2012 |
| How do predators locate nests of ornate box turtles (Terrapene ornata)? A field experiment NP Bernstein, SA McCollum, RW Black Herpetological Conservation and Biology 10 (1), 44-53, 2015 | 11 | 2015 |
| On the Reclassification of the Terrapene (Testudines: Emydidae): A Response to Fritz & Havaš BT Martin, NP Bernstein, RD Birkhead, JF Koukl, SM Mussmann, ... Zootaxa 3835 (2), 292–294-292–294, 2014 | 10 | 2014 |
| Morphometric Models of Growth in Ornate Box Turtles (Terrapene ornata ornata) as Related to Growth Rings NP Bernstein, RG Todd, MY Baloch, SA Mccollum, T Skorczewski, ... Chelonian Conservation and Biology 17 (2), 197-205, 2018 | 9 | 2018 |
| Brief Note: Vegetational History of Mentor Marsh NP Bernstein, EB McLean | 9 | 1981 |
