Population Density

Displaying 483 data points

Striped Skunk (Mephitis mephitis)

Citation:

Population characteristics, survival rates, and causes of mortality of striped skunks (Mephitis mephitis) on the southern High Plains, Texas.

Author(s)

Hansen, L.A., Mathews, N.E., Vander Lee, B.A. and Lutz, R.S.

Issue

1

Volume

49
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	Claytonville: 0.36, Halfway: 0.59, Olton: 0.38, Plainview: 0.20	Individuals/12.8 sq km	Individuals/12.8 sq km	B	Both Adults and Juveniles	104	Lamb/Hale/Swisher counties	Exposure Factor Datasets	USA
Population Density	Claytonville: 0.27, Halfway: 0.71, Olton: 0.63, Plainview: 0.10	Individuals/12.8 sq km	Individuals/12.8 sq km	B	Both Adults and Juveniles	104	Lamb/Hale/Swisher counties	Exposure Factor Datasets	USA

Kit Fox (Vulpes macrotis)

Citation:

Population dynamics of San Joaquin kit foxes at the Naval Petroleum Reserves in California.

Author(s)

Cypher, B.L., Warrick, G.D., Otten, M.R., O'Farrell, T.P., Berry, W.H., Harris, C.E., Kato, T.T., McCue, P.M., Scrivner, J.H. and Zoellick, B.W.

Volume

145
Exposure Endpoint Type	Endpoint Value	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	California Counties	Countries
Population Density	See citation Table 1	Number/km2	B	Both Adults and Juveniles	See citation	Naval Petroleum Reserve	Exposure Factor Datasets	Kern	USA

Long-tailed Weasel (Mustela frenata)

Citation:

Abundance of mesocarnivores in two vegetation types in the southeastern region of Mexico.

Author(s)

Hernández-Sánchez, A., Santos-Moreno, A. and Pérez-Irineo, G.

Issue

2

Volume

62
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	Rainy season: 0.10, dry: 0.18	Estimated average density by season	individuals/km2	NR	Not Reported	See citation	Sierra de Oaxaca	Exposure Factor Datasets	MEXICO
Population Density	Cloud forest: 0.26, semi-evergreen forest: 0.01	Estimated average density by vegetation type	individuals/km2	NR	Not Reported	See citation	Sierra de Oaxaca	Exposure Factor Datasets	MEXICO

Salt-marsh Harvest Mouse (Reithrodontomys raviventris)

Citation:

Salt marsh harvest mouse demography and habitat use in the Suisun Marsh, California.

Author(s)

Sustaita, D., Quickert, P.F., Patterson, L., Barthman‐Thompson, L. and Estrella, S.

Issue

6

Volume

75
Exposure Endpoint Type	Endpoint Value	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	California Counties	Countries	Error
Population Density	Diked: 32.3, tidal: 18.9, mixed vegetation: 43.5, pickleweed: 27.2, upland grass: 6.1	mice/ha	B	Both Adults and Juveniles	72	Suisun Marsh	Exposure Factor Datasets	Solano	USA	Diked: 3.4, tidal: 2.5, mixed vegetation: 4.5, pickleweed: 2.5, upland grass: 1.5

Western Meadowlark (Sturnella neglecta)

Citation:

Reproductive biology of a grassland songbird community in northcentral Montana.

Author(s)

Jones, S.L., Dieni, J.S. and Gouse, P.J.

Issue

3

Volume

122
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sample Size	Location	Type	Countries	Error
Population Density	2.6	Mean nests/40 ha	92	Bowdoin National Wildlife Refuge	Exposure Factor Datasets	USA	0.46

Citation:

Avian community structure along a mountain big sagebrush successional gradient.

Author(s)

Reinkensmeyer, D.P., Miller, R.F., Anthony, R.G. and Marr, V.E.

Issue

4

Volume

71
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Life Cycle Stage	Location	Type	Countries	Error
Population Density	Postburn grassland: 0.13, shurb-steppe: 0.04, mid-successional juniper: 0.04	Birds/ha/yr	Birds/ha/yr	Adult	Deschutes and Lake Counties	Exposure Factor Datasets	USA	Postburn grassland: 0.02, shurb-steppe: 0.02, mid-successional juniper: 0.01

Willow Flycatcher (Empidonax traillii)

Citation:

Southwestern Willow Flycatcher populations in California: distribution, abundance, and potential for conservation.

Author(s)

Kus, B.E., Beck, P.P. and Wells, J.M.

Volume

26
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Location	Type	California Counties	Countries
Population Density	Review	Pairs/site	B	Adult		Exposure Factor Datasets	Kern	USA

California Sea Lion (Zalophus californianus)

Citation:

Current status of the California sea lion (Zalophus californianus) and the northern elephant seal (Mirounga angustirostris) at the San Benito Archipelago, Mexico.

Author(s)

Elorriaga-Verplancken, F.R., Ferretto, G. and Angell, O.C.

Issue

4

Volume

41
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	See citation Table 3	Abundance	M	Adult	See citation	San Benito Archipelao	Exposure Factor Datasets	MEXICO
Population Density	See citation Table 3	Abundance	M	Juvenile	See citation	San Benito Archipelao	Exposure Factor Datasets	MEXICO
Population Density	See citation Table 3	Abundance	F	Adult	See citation	San Benito Archipelao	Exposure Factor Datasets	MEXICO
Population Density	See citation Table 3	Abundance	B	Juvenile	See citation	San Benito Archipelao	Exposure Factor Datasets	MEXICO
Population Density	See citation Table 3	Abundance	B	Pup	See citation	San Benito Archipelao	Exposure Factor Datasets	MEXICO
Population Density	Review; See citation Table 4	Abundance	B	Pup	See citation	San Benito Archipelao	Exposure Factor Datasets	MEXICO

Snowy Plover (Charadrius nivosus)

Citation:

Distribution and abundance of Snowy Plovers in eastern North America, the Caribbean, and the Bahamas.

Author(s)

Gorman, L.R. and Haig, S.M.

Issue

1

Volume

73
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sample Size	Location	Type	Countries
Population Density	Review	Distribution/occurrence in eastern US	3536 records		Exposure Factor Datasets	USA

Citation:

Population size of snowy plovers breeding in North America.

Author(s)

Thomas, S.M., Lyons, J.E., Andres, B.A., T-Smith, E.E., Palacios, E., Cavitt, J.F., Royle, J.A., Fellows, S.D., Maty, K., Howe, W.H. and Mellink, E.

Issue

1

Volume

35
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sample Size	Location	Type	Countries
Population Density	See citation Table 2	Population estimates in North America	23555 estimated total	All of North America	Exposure Factor Datasets	USA

Citation:

Seasonal abundance of shorebirds at the Guerrero Negro wetland complex, Baja California, Mexico.

Author(s)

Carmona, R., Arce, N., Ayala-Pérez, V. and Danemann, G.D.

Issue

1

Volume

118
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Location	Type	Countries
Population Density	67	Individuals/33,000 ha	B	Both Adults and Juveniles	Exportadora de Sal S.A. de C.V. saltworks	Exposure Factor Datasets	MEXICO
Population Density	54	Individuals/21,000 ha	B	Both Adults and Juveniles	Guerrero Negro Lagoon	Exposure Factor Datasets	MEXICO
Population Density	234	Individuals/57,100 ha	B	Both Adults and Juveniles	Ojo de Liebre Lagoon	Exposure Factor Datasets	MEXICO
Population Density	See citation	Monthly & seasonal census/111,100 ha	B	Both Adults and Juveniles	Guerrero Negro wetland complex	Exposure Factor Datasets	MEXICO

Citation:

Recent Snowy Plover population increase arises from high immigration rate in coastal northern California.

Author(s)

Colwell, M.A., Feucht, E.J., Lau, M.J., Orluck, D.J., McAllister, S.E. and Transou, A.N.

Issue

1

Volume

124
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Sample Size	Location	Type	California Counties	Condition	Countries
Population Density	See citation Figure 2	Number of breeding adults/area by year	B	Adult	See citation		Exposure Factor Datasets	Humboldt	Breeding	USA

Loggerhead Shrike (Lanius ludovicianus)

Citation:

The indirect effects of climate variability on the reproductive dynamics and productivity of an avian predator in the arid Southwest.

Author(s)

Borgman, C.C. and Wolf, B.O.

Issue

1

Volume

180
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	29.2	Number of breeding pairs/15,000 ha	B	Adult	175	Kirkland Airfore Base	Exposure Factor Datasets	USA

Northern Flicker (Colaptes auratus)

Citation:

Fifty years of early winter bird counts in Harvey County, Kansas

Author(s)

Platt, D.R.

Issue

2

Volume

54
Exposure Endpoint Type	Endpoint Value	Location	Type	Countries
Population Density	See citation	Harvey County	Exposure Factor Datasets	USA

Citation:

Avian community structure along a mountain big sagebrush successional gradient.

Author(s)

Reinkensmeyer, D.P., Miller, R.F., Anthony, R.G. and Marr, V.E.

Issue

4

Volume

71
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Location	Type	Condition	Countries	Error
Population Density	Postburn grassland: 0.02, shrub-steppe: 0.01, mid-successional juniper: 0.11, old-growth juniper: 0.14	Mean densities per cover type	birds/ha/yr	B	Central Oregon	Exposure Factor Datasets	Breeding	USA	Postburn grassland: 0.01, shrub-steppe: 0.01, mid-successional juniper: 0.01, old-growth juniper: 0.02

Citation:

Reproductive success of cavity-nesting birds in partially harvested woodlots.

Author(s)

Straus, M.A., Bavrlic, K., Nol, E., Burke, D.M. and Elliott, K.A.

Issue

5

Volume

41
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Location	Type	Condition	Countries	Error
Population Density	Reference: 0.7, Group: 0.5, Old standard: 0.8, Standard: 0.7, Heavy: 0.6	Breeding pair density by silvicutlure treatment	pairs/ha	B	Adult	London, Ontario	Exposure Factor Datasets	Breeding	CANADA	Reference: 0.03, Group: 0.03, Old standard: 0.12, Standard: 0.11, Heavy: 0.08

Peregrine Falcon (Falco peregrinus)

Citation:

The role of pigeon consumption in the population dynamics and breeding performance of a peregrine falcon (Falco peregrinus) population: conservation implications.

Author(s)

López-López, P., Verdejo, J. and Barba, E.

Issue

2

Volume

55
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	9	Breeding pairs/1,500 sq km	Breeding pairs/1,500 sq km	B	Adult	820 nests		Exposure Factor Datasets	SPAIN

Citation:

Density, productivity, diet and population status of the Peregrine Falcon Falco peregrinus in the Italian Alps.

Author(s)

Rizzolli, F., Sergio, F., Marchesi, L. and Pedrini, P.

Issue

2

Volume

52
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	Condition	Countries
Population Density	1.16	Pairs/100 sq km	Pairs/100 sq km	B	Adult	249	Central-eastern Italian Alps	Exposure Factor Datasets	Breeding	ITALY
Population Density	Review	Pairs/100 sq km	Pairs/100 sq km	B	Adult			Exposure Factor Datasets

Double-crested Cormorant (Phalacrocorax auritus)

Citation:

Seasonal and annual patterns in density of double-crested cormorants in two coastal regions of Lake Huron.

Author(s)

Ridgway, M.S.

Issue

3

Volume

36
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Location	Type	Countries
Population Density	See citation Table 1	Adults/sq km	Adults/sq km	NR	Adult	North Channel, Lake Huron	Exposure Factor Datasets	CANADA
Population Density	See citation Table 1	Adults/sq km	Adults/sq km	NR	Adult	Georgian Bay, Lake Huron	Exposure Factor Datasets	CANADA

Citation:

Recent population size, trends, and limiting factors for the double‐crested cormorant in western North America.

Author(s)

Adkins, J.Y., Roby, D.D., Lyons, D.E., Courtot, K.N., Collis, K., Carter, H.R., Shuford, W.D. and Capitolo, P.J.

Issue

7

Volume

78
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Location	Type	Countries
Population Density	See citation	Breeding pairs/location		Exposure Factor Datasets	USA

Citation:

Monitoring Colonial Nesting Birds in Estero Bay Aquatic Preserve.

Author(s)

Clark, C.P. and Leary, R.E.

Issue

2

Volume

76
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Life Cycle Stage	Location	Type	Condition	Countries
Population Density	See citation Figure 2	Active nests/11,000 ha	Adult	Estero Bay Aquatic Preserve	Exposure Factor Datasets	Breeding	USA

Citation:

Density-dependent growth of double-crested cormorant colonies on Lake Huron.

Author(s)

Ridgway, M.S., Pollard, J.B. and Weseloh, D.C.

Issue

10

Volume

84
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Location	Type	Condition	Countries
Population Density	1990: 3985, 1994: 9854, 1997: 8217, 2000: 12821, 2003: 11470	Number of nests	Number of nests	Georgian Bay, Lake Huron	Exposure Factor Datasets	Breeding	CANADA
Population Density	1990: 4310, 1994: 7281, 1997: 8494, 2000: 12441, 2003: 11527	Number of nests	Number of nests	North Channel, Lake Huron	Exposure Factor Datasets	Breeding	CANADA

Least Tern (Sterna antillarum)

Citation:

Productivity of endangered Least Terns (Sterna antillarum athalassos) below a hydropower and flood-control facility on the Arkansas River.

Author(s)

Leslie Jr, D.M., Wood, G.K. and Carter, T.S.

Issue

4

Volume

45
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Location	Type	Countries
Population Density	140	Adult pairs along 94 km	B	Adult	Arkansas River at Tulsa	Exposure Factor Datasets	USA
Population Density	212	Adult pairs along 94 km	B	Adult	Arkansas River at Tulsa	Exposure Factor Datasets	USA

Burrowing Owl (Athene cunicularia)

Citation:

Density and reproduction of burrowing owls along an urban development gradient.

Author(s)

Millsap, B.A. and Bear, C.

Issue

1

Volume

64
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Sample Size	Location	Type	Condition	Countries
Population Density	6.9	Breeding pairs/sq km	B	Adult	264	Cape Coral, Lee County	Exposure Factor Datasets	Breeding	USA

Citation:

Burrowing Owl population-trend surveys in southern Alberta: 1991-2000.

Author(s)

Schmutz, J.K.

Issue

4

Volume

35
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Location	Type	Condition	Countries
Population Density	1991: 32.6, 1993: 19.8, 1994: 17.2, 1997: 2.8, 1998: 5.7, 2000: 4.1	Nests/100 sq km	B	Adult	Hanna, Alberta	Exposure Factor Datasets	Breeding	CANADA
Population Density	1993: 7.2, 1994: 1.9, 1995: 11.6, 1997: 13.5, 1998: 9.7, 1999: 9.7, 2000: 8.7	Nests/100 sq km	B	Adult	Brooks, Alberta	Exposure Factor Datasets	Breeding	CANADA

Citation:

Abundance and density of mountain plover (Charadrius montanus) and burrowing owl (Athene cunicularia) in eastern Colorado.

Author(s)

Tipton, H.C., Doherty Jr, P.F. and Dreitz, V.J

Issue

3

Volume

126
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sample Size	Location	Type	Countries
Population Density	See citation Figure 2	Individuals/100ha	60	Eastern Colorado	Exposure Factor Datasets	USA

Citation:

Distribution and abundance of western burrowing owls (Athene Cunicularia hypugaea) in southeastern California.

Author(s)

Wilkerson, R.L. and Siegel, R.B.

Issue

3

Volume

56
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Location	Type	Countries
Population Density	See citation Table1	Breeding pairs/sq km	B	Adult	Northern Mojave Desert-eastern Sierra Nevada	Exposure Factor Datasets	USA

Citation:

Abundance, Habitat Use, and Seasonal Variability of Raptor Assemblages In the Flooding Pampas of Argentina.

Author(s)

Baladrón, A.V., Bó, M.S., Bechard, M.J. and Malizia, A.I.

Issue

1

Volume

51
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Location	Type	Countries	Error
Population Density	7	Individuals/2850 ha	NR	Pampas of Argentina	Exposure Factor Datasets	ARGENTINA	6.5
Population Density	See citation Figure 3	Seasonal population changes	NR	Pampas of Argentina	Exposure Factor Datasets	ARGENTINA

Citation:

Long‐term population dynamics of a managed burrowing owl colony.

Author(s)

Barclay, J.H., Korfanta, N.M. and Kauffman, M.J.

Issue

6

Volume

75
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Location	Type	California Counties	Countries
Population Density	See citation Figure 2	Number of pairs (temporal)	Managed vegetated areas on Norman Y. Mineta San Jose International Airport (SJC) in San Jose< CA	Exposure Factor Datasets	Santa Clara	USA

Citation:

Demography and distribution of the Burrowing Owl in Florida.

Author(s)

Bowen, P.J.

Volume

9
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Location	Type	Countries
Population Density	See citation Table 1	Number of individuals/706.5 ha	B	Adult	946 territories in FL	Exposure Factor Datasets	USA
Population Density	See citation Table 1	Number of individuals/706.5 ha	B	Juvenile	946 territories in FL	Exposure Factor Datasets	USA

Citation:

Population density of the western burrowing owl (Athene cunicularia hypugaea) in Mexican prairie dog (Cynomys mexicanus) colonies in northeastern Mexico.

Author(s)

Ayma, G.R., Kerstupp, A.O., Duarte, A.M., Velasco, A.G. and Rojas, J.I.G.

Issue

38

Volume

16
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Location	Type	Countries
Population Density	2010: 2,026 [1756-2336 (95% CI)] 2011: 2015 [1573-2317 (95% CI)] per 20,529 ha	Number of individuals/ha	Chihuahuan Desert	Exposure Factor Datasets	MEXICO

Clapper Rail (Rallus longirostris)

Citation:

Avian communities of the Altamaha River estuary in Georgia, USA.

Author(s)

Brittain, R.A., Meretsky, V.J. and Craft, C.B.

Issue

3

Volume

122
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Location	Type	Condition	Countries
Population Density	90 [58-163 (95% CI)]	Breeding males/sq km	M	Adult	Sapelo Island salt marsh	Exposure Factor Datasets	Breeding	USA

Citation:

Distribution and abundance of the Yuma clapper rail (Rallus longirostris yumanensis) in the Colorado River delta, Mexico.

Author(s)

Hinojosa-Huerta, O., DeStefano, S. and Shaw, W.W.

Issue

1

Volume

49
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	1999 EBS: 0.512, 1999 LBS: 0.507, 2000 EBS: 0.472, 2000 LBS: 0.523	Individuals/ha	NR	Not Reported	6629	Colorado River Delta	Exposure Factor Datasets	MEXICO

Brown Pelican (Pelecanus occidentalis)

Citation:

Long-Term Population and Colony Dynamics of Brown Pelicans (Pelecanus occidentalis) in Rapidly Changing Coastal Louisiana, USA.

Author(s)

Selman, W., Hess Jr, T.J. and Linscombe, J.

Issue

1

Volume

39
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Life Cycle Stage	Location	Type	Countries
Population Density	See citation Table 2	Nests/ha/year	Adult	Coastal LA	Exposure Factor Datasets	USA
Population Density	See citation Table 2	Colonies/ha/year	Both Adults and Juveniles	Coastal LA	Exposure Factor Datasets	USA

Citation:

Breeding distribution and abundance of seabirds on islands off north-central Chile.

Author(s)

Simeone, A., Luna-Jorquera, G., Bernal, M., Garthe, S., Sepúlveda, F., Villablanca, R., Ellenberg, U., Contreras, M., Muñoz, J. and Ponce, T.

Issue

2

Volume

76
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Life Cycle Stage	Location	Type	Countries
Population Density	See citation Table 2	Breeding pairs/ha	Adult	North central Chilean islands	Exposure Factor Datasets	CHILE

Citation:

Size and distribution of the California brown pelican metapopulation in a non-ENSO year.

Author(s)

Anderson, D.W., Henny, C.J., Godínez-Reyes, C., Gress, F., Palacios, E.L., Del Prado, K.S., Gallo-Reynoso, J.P. and Bredy, J.

Volume

41
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Life Cycle Stage	Location	Type	Condition	Countries
Population Density	See citation	Number of breeding pairs (area size NR)	Adult	West coast US/Mexico border	Exposure Factor Datasets	Breeding	MEXICO
Population Density	See citation	Number of individuals (area size NR)	Both Adults and Juveniles	West coast US/Mexico border	Exposure Factor Datasets		MEXICO

Citation:

Brown Pelicans, Pelecanus occidentalis californicus (Birds: Pelecanidae): Five years with ENSO, dynamic nesting, and contemporary breeding status in the Gulf of California.

Author(s)

Anderson, DW, Godinez-Reyes, CR, Velarde, E., Avalos-Tellez, R., Ramirez-Delgado, D., Moreno-Prado, H., Bowen, T., Gress, F., Trejo-Ventura, J., Adrean, L. and Meltzer, L.

Issue

1

Volume

43
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Location	Type	Condition	Countries
Population Density	See citation; fewer nests in ENSO years	Number of nests on islands of Gulf of Mexico 1970-2006 during ENSO/non-ENSO years	Gulf of Mexico	Exposure Factor Datasets	Breeding	MEXICO

Citation:

Nesting Sites and Population Estimates of Seabirds and other Waterbirds of the Gulf of Chiriquí, Panamá.

Author(s)

Angehr, G.R., Kushlan, J.A. and Hines, K.N.

Issue

4

Volume

37
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Location	Type	Countries
Population Density	466 nests	Number of nests/>50,314 ha	Gulf of Chiriquí	Exposure Factor Datasets	PANAMA

Citation:

Roosting Brown Pelicans at San Nicolas Island, California, 1972–2006.

Author(s)

Capitolo, P.J., Carter, H.R., Jaques, D.L., Mcchesney, G.J., Mciver, W.R., Keeney, T.W. and Smith, G.

Issue

3

Volume

35
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Location	Type	California Counties	Countries
Population Density	0-910	Number of individuals/90 sq km (temporal)	San Nicolas Island	Exposure Factor Datasets	Ventura	USA

Citation:

Seabird Colonies of the Small Islands of Bahía Santa María-La Reforma, Sinaloa, México.

Author(s)

Castillo-Guerrero, J.A., González-Medina, E. and Fernández, G.

Issue

4

Volume

37
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sample Size	Location	Type	Countries	Error
Population Density	2011: 88-289 2012: 120-1895	Number of nests/583 sq km	2-3 surveys/y	Small Islands of Bahía Santa María- La Reforma, Sinaloa, México	Exposure Factor Datasets	CHILE	2011 & 2012: 12-159 SE
Population Density	Review	Number of nests in colonies that nest in mangroves		Small Islands of Bahía Santa María- La Reforma, Sinaloa, México	Exposure Factor Datasets	CHILE

Citation:

Survey of Brown PelicanS (Pelecanus occidentalis) in JackSonville, Florida.

Author(s)

Cooper, K. and Vanderhoff, E.N.

Issue

2

Volume

43
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	1722	Number of individuals (area size NR)	Both Adults and Juveniles	1722	Three sites in Jacksonville, FL	Exposure Factor Datasets	USA

Citation:

At-Sea distribution and abundance of seabirds off southern California: a 20-Year comparison.

Author(s)

Mason, J.W., McChesney, G.J., McIver, W.R., Carter, H.R., Takekawa, J.Y., Golightly, R.T., Ackerman, J.T., Orthmeyer, D.L., Perry, W.M., Yee, J.L. and Pierson, M.O.

Publisher

Cooper Ornithological Society.
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Location	Type	Countries
Population Density	Review	Number of individuals/sq km		Exposure Factor Datasets	USA

Western Skink (Eumeces skiltonianus)

Citation:

Habitat use and movement patterns of northern alligator lizards (Elgaria coerulea) and western skinks (Eumeces skiltonianus) in southeastern British Columbia.

Author(s)

Rutherford, P.L. and Gregory, P.T.

Issue

1

Volume

31
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Location	Type	Countries
Population Density	1	Hand captured	Individuals per 10,000 sq m	B	Not Reported		Exposure Factor Datasets	CANADA
Population Density	2	Hand captured	Individuals per 2,500 sq m	B	Not Reported		Exposure Factor Datasets	CANADA
Population Density	27	Hand captured	Individuals per 22,500 sq m	B	Not Reported		Exposure Factor Datasets	CANADA
Population Density	39	Hand captured/trapped	Individuals per 22,500 sq m	B	Not Reported		Exposure Factor Datasets	CANADA
Population Density	4	Hand captured/trapped	Individuals per 60,000 sq m	B	Not Reported		Exposure Factor Datasets	CANADA
Population Density	25	Hand captured	Individuals per 70,000 sq m	B	Not Reported		Exposure Factor Datasets	CANADA
Population Density	3	Hand captured	Individuals per 90,000 sq m	B	Not Reported		Exposure Factor Datasets	CANADA

Sideblotched Lizard (Uta stansburiana)

Citation:

Demography of the Side-Blotched Lizard, Uta stansburiana, in sand dunes of the central Chihuahuan Desert.

Author(s)

Gadsden, H. and Castañeda, G.

Issue

3

Volume

57
Exposure Endpoint Type	Endpoint Value	Sex	Location	Type	Countries
Population Density	Review, see Table 4	B		Exposure Factor Datasets	MEXICO

Citation:

The effect of habitat, time of hatching, and body size on the dispersal of hatchling Uta stansburiana

Author(s)

Doughty, Paul and Barry Sinervo

Pages

485-490

Year

Saturday, January 1, 1994 - 12:00

Issue

4

Volume

28
Exposure Endpoint Type	Endpoint Value	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	California Counties
Population Density	88	#/ha	Not Reported	Not Reported	Not Reported	Del Puerto Canyon	Exposure Factor Datasets	Stanislaus

Western Pond Turtle (Actinemys marmorata)

Citation:

Survival of the western pond turtle (Emys marmorata) in an urban California environment.

Author(s)

Spinks, P.Q., Pauly, G.B., Crayon, J.J. and Shaffer, H.B.

Issue

2

Volume

113
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Life Cycle Stage	Location	Type	California Counties	Countries
Population Density	53 [48-66 (95% CI)]	Model calculation	Individuals in 10 acre waterway	Both Adults and Juveniles		Exposure Factor Datasets	Yolo	USA
Population Density	49	Model calculation	Individuals in 10 acre waterway	Both Adults and Juveniles		Exposure Factor Datasets	Yolo	USA

California Giant Salamander (Dicamptodon ensatus)

Citation:

Unusual subterranean aggregations of the California Giant Salamander, Dicamptodon ensatus.

Author(s)

Fellers, G.M., Wood, L.L., Carlisle, S. and Pratt, D.

Volume

5
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Location	Type	California Counties	Countries
Population Density	45	Removed drainage culvert; 1.2 m diameter x 12.2 m long	Individuals captured	B	Adult	Glenbrook Creek, Point Reyes National Seashore	Exposure Factor Datasets	Marin	USA
Population Density	28	Removed drainage culvert; 2.1 m wide x 1.4 m high x 12.2 m long	Individuals captured	B	Adult	Estero Road, Point Reyes National Seashore	Exposure Factor Datasets	Marin	USA

Western Toad (Anaxyrus boreas)

Citation:

Influence of demography and environment on persistence in toad populations.

Author(s)

Lambert, B.A., Schorr, R.A., Schneider, S.C. and Muths, E.

Issue

7

Volume

80
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Life Cycle Stage	Sample Size	Location	Type	Condition	Countries
Population Density	See citation	0.06-0.29 ha	Individuals captured	Adult	See citation	Rocky Mountains, CO	Exposure Factor Datasets	Breeding	USA

Citation:

A herpetological inventory of Naval Air Station Fallon, Churchill County, Nevada.

Author(s)

Rose, J.P., Miano, O.J., Cottle, G.R., Lovich, R.E., Palmer, R.L. and Todd, B.D.

Issue

4

Volume

75
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Life Cycle Stage	Location	Type	Countries
Population Density	131	975 sq km	Individuals captured	Both Adults and Juveniles	Naval Air Station Fallon, NV	Exposure Factor Datasets	USA

Coachella Valley Fringe-toed Lizard (Uma inornata)

Citation:

Population dynamics of a threatened sand dune lizard.

Author(s)

Barrows, C.W.

Issue

4

Volume

51
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Life Cycle Stage	Location	Type	California Counties	Countries
Population Density	See citation	Population growth, r	Not Reported	Thousand Palms Preserve	Exposure Factor Datasets	Riverside	USA

Citation:

Is the Coachella Valley fringe-toed lizard (Uma inornata) on the edge of extinction at Thousand Palms Preserve in California?

Author(s)

Chen, X., Barrows, C.W. and Li, B.L.

Issue

1

Volume

51
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Life Cycle Stage	Location	Type	California Counties	Countries
Population Density	See citation	Mean hatchlings/ha	Hatchling	Thousand Palms Preserve	Exposure Factor Datasets	Riverside	USA

Giant Garter Snake (Thamnophis gigas)

Citation:

Abundance and sexual size dimorphism of the Giant Gartersnake (Thamnophis gigas) in the Sacramento valley of California.

Author(s)

Wylie, G.D., Casazza, M.L., Gregory, C.J. and Halstead, B.J.

Issue

1

Volume

44
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Sex	Life Cycle Stage	Sample Size	Location	Type	California Counties	Countries
Population Density	118 [111-132 (95% CI)]	Abundance estimates	NR	Not Reported	103	Badger Creek: 240 ha	Exposure Factor Datasets	Sacramento	USA
Population Density	177 [124-280 (95% CI)]	Abundance estimates	NR	Not Reported	88	Gilsizer Slough: 1,400 ha	Exposure Factor Datasets	Sutter	USA
Population Density	29 [22-53 (95% CI)]	Abundance estimates	NR	Not Reported	53	Colousa National Wildlife Reserve: 4,500 ha	Exposure Factor Datasets	Colusa	USA
Population Density	229 [199-276 (95% CI)]	Abundance estimates	NR	Not Reported	164	Natomas Basin: 21,600 ha	Exposure Factor Datasets	Sutter	USA

Ensatina (Ensatina eschscholtzii)

Citation:

Amphibian populations in the terrestrial environment: Is there evidence of declines of terrestrial forest amphibians in northwestern California?

Author(s)

Welsh Jr, H.H., Fellers, G.M. and Lind, A.J.

Issue

41
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	See citation Table 1	21-150 ha	Individuals captured	NR	Not Reported	2420		Exposure Factor Datasets	USA

Citation:

Amphibians in managed, second-growth Douglas-fir forests.

Author(s)

Aubry, K.B.

Issue

4

Volume

64
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Location	Type	Countries
Population Density	33	>30 ha area	Individuals captured	NR	Not Reported	Pierce County, Washington	Exposure Factor Datasets	USA
Population Density	12	>30 ha area	Individuals captured	NR	Not Reported	Pierce County, Washington	Exposure Factor Datasets	USA
Population Density	34	>30 ha area	Individuals captured	NR	Not Reported	Pierce County, Washington	Exposure Factor Datasets	USA
Population Density	137	>30 ha area	Individuals captured	NR	Not Reported	Pierce County, Washington	Exposure Factor Datasets	USA

Citation:

Plethodontid Salamander Distributions in Managed Forest Headwaters in Western Oregon, USA.

Author(s)

Olson, D. H., & Kluber, M. R.

Issue

1

Volume

9
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Location	Type	Countries
Population Density	See citation	46 ha	Individuals captured	NR	Not Reported	Green Peak forest, Benton County, N 44.3667, W 123.4583	Exposure Factor Datasets	USA

Bell's Vireo (Vireo bellii)

Citation:

Demography of Bell's Vireos in Missouri grassland-shrub habitats.

Author(s)

Budnik, J.M., Ryan, M.R. and Thompson III, F.R.

Issue

4

Volume

117
Exposure Endpoint Type	Endpoint Value	Units	Life Cycle Stage	Location	Type
Population Density	1	Number of territorial males per 10 ha	Adult		Exposure Factor Datasets
Population Density	1.06	Number of territorial males per 10 ha	Adult		Exposure Factor Datasets
Population Density	1.19	Number of territorial males per 10 ha	Adult		Exposure Factor Datasets

Citation:

Avian use of successional cottonwood (Populus deltoides) woodlands along the middle Missouri River.

Author(s)

Rumble, M.A. and Gobeille, J.E.

Issue

1

Volume

152
Exposure Endpoint Type	Endpoint Value	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries	Error
Population Density	0.01	NR	Not Reported	NR	Missouri River between Pierre and Mobridge, SD	Exposure Factor Datasets	USA	0.01
Population Density	0.02	NR	Not Reported	NR	Missouri River between Pierre and Mobridge, SD	Exposure Factor Datasets	USA	0.02

California Vole (Microtus californicus)

Citation:

Rediscovery of a high-altitude vole, Microtus californicus, in Baja California, Mexico.

Author(s)

Harper, A., Mellink, E., Tremor, S. and Vanderplank, S.

Issue

4

Volume

61
Exposure Endpoint Type	Endpoint Value	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	Age-Specific	Countries
Population Density	1	Animal number	M	Adult	1	Sierra San Pedro M´artir, Baja California, Mexico	Exposure Factor Datasets	Subadult	MEXICO

Deer Mouse (Peromyscus maniculatus ssp. gambelii)

Citation:

Seasonal activity and feeding patterns in a population of deer mice (Peromyscus maniculatus gambelii)

Author(s)

Seabloom, Robert W., Robert G. Schwab and Susan C. Loeb

Pages

2238-2243

Year

Saturday, January 1, 1994 - 12:00

Volume

72
Exposure Endpoint Type	Endpoint Value	Units	Sex	Sample Size	Location	Type	California Counties
Population Density	1500	#/ha	Both Male and Female	Not Reported	Tule Lake National Wildlife Refuge (elev., 1230 m)	Exposure Factor Datasets	Siskiyou

American Kestrel (Falco sparverius)

Citation:

Influence of nest-box placement and density on abundance and productivity of American kestrels in central Missouri

Author(s)

Toland, Brian R. and William H. Elder

Pages

712-717

Year

Thursday, January 1, 1987 - 12:00

Volume

99
Exposure Endpoint Type	Endpoint Value	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type
Population Density	0.22	mean density in study area	individuals per km2	Both Male and Female	Both Adults and Juveniles	5 years	rural and urban lands	Exposure Factor Datasets

Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)

Citation:

Nest site characteristics and reproductive success of burrowing owls (Strigiformes: Strigidae) in Durango, Mexico

Author(s)

Rodriguez-Estrella, Ricardo and Alfredo Ortega-Rubio

Pages

143-148

Year

Friday, January 1, 1993 - 12:00

Issue

1

Volume

41
Exposure Endpoint Type	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	Countries
Population Density	nesting density based on nearest-neighbor test	pairs/km2	Both Male and Female	Adult	23-29 pairs	Mapimf Biosphere Reserve, Durango (1,000-1,350 m)	Exposure Factor Datasets	MEXICO

Desert Tortoise (Gopherus agassizi)

Citation:

Estimated density and distribution of the desert tortoise at Fort Irwin, National Training Center and Goldstone Space Communications Complex

Author(s)

Woodman, A. Peter, Stephen M. Juarez, Eugene D. Humphreys, Karen Kirtland and Lawrence F. LaPre

Pages

81-99

Publisher

Desert Tortoise Council

Year

Wednesday, January 1, 1986 - 12:00
Exposure Endpoint Type	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type
Population Density	range of population densities in % of area (800 mi2) surveyed	#/mi2	Not Reported	Not Reported	Not Reported	Fort Irwin National Training Center and Goldstone Space Communication Center, Barstow	Exposure Factor Datasets

San Joaquin Kit Fox (Vulpes macrotis ssp. mutica)

Citation:

Reproduction and spacing patterns of kit foxes relative to changing prey availability

Author(s)

White, Patrick J. and Katherine Ralls

Pages

861-867

Year

Friday, January 1, 1993 - 12:00

Issue

4

Volume

57
Exposure Endpoint Type	Endpoint Description	Units	Sex	Life Cycle Stage	Sample Size	Location	Type	California Counties
Population Density	minimum densities of foxes in study area over three years	fox /4.1 km2 - 1 fox / 6.5 km2	Both Male and Female	Adult	15-22 foxes/year	Carrizo Plain Natural Area	Exposure Factor Datasets	San Luis Obispo

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