Namibia
ivory trade in, 164
wildlife trade in, 162
National Biological Service ecosystems study by, 29
"Endangered Ecosystems of the United States—A Preliminary Assessment of Loss and Degradation", 61-62, 64
National Bison Association, 128
National Fish Hatcheries Systems
wilderness areas in National Wildlife Refuges and National Fish Hatcheries, 2002, 35t-37t
wilderness areas under attack, 26
National Forest System map of locations, 2004, 29f
National Forest Service acreage, 2004, 28 (t2.11)
spotted owls and, 137
wildlife conservation, 25
National Institute for Biodiversity, 80
National Invasive Species Act of 1996, 90
National Invasive Species Management Plan, 8-9
National Marine Fisheries Service critical habitat for salmon, 93-94
Endangered Species Act responsibilities, 12, 13
Marine Mammal Protection Act and, 104
National Park Service
frog habitat preservation by, 109
permit issued to BNP Petroleum, 111
National Park System
areas with largest number of endangered, threatened, proposed, candidate species, June 1, 2001, 28 (t2.10)
description of, 23-25
endangered, threatened, proposed, candidate species found in units of National Park Service, June 1, 2001, 26 (t2.9)
hiking/camping in, 169
map of locations, 2002, 27f
National Survey of Fishing, Hunting, and Wildlife-Associated Recreation (U.S. Fish and Wildlife Service), 167-168
National Wildlife Federation, 87
National Wildlife Refuge System
land holdings, as of September 30, 1999, 30 (t2.12)
land in, species on, 26
map of locations, 2004, 32t
National Wildlife Refuge System locations, 2004, 32t
National Wildlife Refuges for endangered species, 2004, 30t-31t
threatened and endangered animal species found on, 2004, 33t
threatened and endangered plant species found on, 2004, 34t
wilderness areas in National Wildlife
Refuges and National Fish Hatcheries, 2002, 35t-37t
wilderness areas under attack, 26-28
Native Americans and Alaska Natives bison and, 128
subsistence whaling, 165, 166 "natural greenhouse effect", 41
Nature Conservancy, 136
Nepal, ecotourism in, 169
Nest, bald eagle, 142
Nesting habitat
black-capped vireo and golden-cheeked warbler, 136
Kemp's ridley turtles, 111
turtles, threats to, 110
whooping cranes, 138
New Hampshire, 67
New Mexico, 147
New Zealand
endangered birds in, 131
Huia bird of, 154
Newts, 108
Nigeria, 162
Nile perch, 93
Nitrous oxide
global warming and, 43
rise in levels of, 42
"no surprise" policy, 15-16
Non-prescription medicine, 80
Nonflowering plants, 61 (t4.2)
Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990, 90
Nonresidential wildlife-activity participants, type of site visited by, 2001, 171 (f11.9)
Nonresidential wildlife-activity participants who observed/fed/photographed wildlife, percent of, 2001, 171 (f11.8)
Nonresidential wildlife-watching participants by wildlife observed/photographed/fed and place, 2001, 171 (t11.1)
Normal rate, 1
North America
endangered forests in, 71-73
endangered plants of, 65-68
See also United States
North American Breeding Bird Survey (Biological Resource Division of United States Geological Survey), 135-136
North American Free Trade Agreement (NAFTA), 163
Northern Idaho ground squirrel
listing factors/threats for, 118t
probable historical distribution and primary/secondary metapopulation sites, 2003, 118f
threatened, 117
Northern spotted owl
endangered, 137
logging ban to protect, 4, 80
in Pacific Northwest, 64
photograph of, 6 (f1.3)
Norway, 162, 165
Nylon loops, 155-156
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