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Journal articles on the topic 'Spotted owl'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Crozier, Michelle L., Mark E. Seamans, R. J. GutiÉRrez, et al. "Does The Presence of Barred Owls Suppress the Calling Behavior of Spotted Owls?" Condor 108, no. 4 (2006): 760–69. http://dx.doi.org/10.1093/condor/108.4.760.

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Abstract Abstract Barred Owls (Strix varia) have expanded their range throughout the ranges of Northern (Strix occidentalis caurina) and California Spotted Owls (S. o. occidentalis). Field observations have suggested that Barred Owls may be behaviorally dominant to Spotted Owls. Therefore, we conducted a test of behavioral dominance by assessing responsiveness of Spotted Owls to conspecific calls when they were in the simulated presence (i.e., imitation of Barred Owl vocalizations) of a Barred Owl. We hypothesized that Spotted Owls would be less likely to respond to conspecific calls in areas

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2

Alston, Jesse M., Janet E. Millard, Jessica A. Rick, Brandon W. Husby, and Laurel A. Mundy. "Observations of Notable Parental Behaviours of Northern Spotted Owls (Strix occidentalis caurina)." Canadian Field-Naturalist 131, no. 3 (2018): 225–27. http://dx.doi.org/10.22621/cfn.v131i3.1874.

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Northern Spotted Owl (Strix occidentalis caurina) is a medium-sized forest owl of conservation concern in the Pacific Northwest of North America. We report two sightings of previously unreported parental behaviour: a Northern Spotted Owl feeding avian nestlings to its young and a Northern Spotted Owl defending a fledgling against a Black Bear (Ursus americanus). Further research may be warranted on the influence of brood size and habitat quality on dietary breadth. Although Black Bears have not been previously documented as Northern Spotted Owl predators, we suggest that they should be conside

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3

North, Malcolm P., Jerry F. Franklin, Andrew B. Carey, Eric D. Forsman, and Tom Hamer. "Forest Stand Structure of the Northern Spotted Owl's Foraging Habitat." Forest Science 45, no. 4 (1999): 520–27. http://dx.doi.org/10.1093/forestscience/45.4.520.

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Abstract Although the spotted owl's close association with old growth has been extensively studied, it has been more difficult to identify and quantify the abundance of particular stand structures associated with preferred owl foraging sites. Old-growth forests have a suite of characteristics that distinguish them from younger forests but which also make it difficult to isolate individual structural features important to the spotted owl. This study used an analysis of use-only sites in areas where natural disturbance had created a gradient of old-growth structural characteristics. We used radi

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4

Gutierrez, R., Douglas Call, and Sarah Rinkevich. "Distribution and Abundance of Spotted Owls in Zion National Park." UW National Parks Service Research Station Annual Reports 13 (January 1, 1989): 226–33. http://dx.doi.org/10.13001/uwnpsrc.1989.2841.

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The main objective of this study is to estimate the distribution, habitat use, and reproductive status of Mexican spotted owls (Strix occidentalis lucida) in Zion National Park. This information will allow managers to coordinate park activities that potentially conflict with nest sites, roost sites, or brood rearing habitats. Other objectives of this study are to estimate spotted owl food habits and fledgling success, and to compare these findings with other North American spotted owl populations.

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5

Watson, Richard B., and Dennis D. Muraoka. "The northern spotted owl controversy." Society & Natural Resources 5, no. 1 (1992): 85–90. http://dx.doi.org/10.1080/08941929209380777.

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6

Burnham, Laurie. "Threat to the Spotted Owl." Scientific American 257, no. 4 (1987): 34–36. http://dx.doi.org/10.1038/scientificamerican1087-34.

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7

Gutiérrez, R. J. "Hematozoa from the Spotted Owl." Journal of Wildlife Diseases 25, no. 4 (1989): 614–18. http://dx.doi.org/10.7589/0090-3558-25.4.614.

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8

Mazza, Patrick. "The spotted owl as scapegoat." Capitalism Nature Socialism 1, no. 4 (1990): 98–106. http://dx.doi.org/10.1080/10455759009358405.

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9

Kelly, Elizabeth G., Eric D. Forsman, and Robert G. Anthony. "Are Barred Owls Displacing Spotted Owls?" Condor 105, no. 1 (2003): 45–53. http://dx.doi.org/10.1093/condor/105.1.45.

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Abstract Barred Owls (Strix varia) have expanded their range into the Pacific Northwest, and anecdotal evidence suggests that they may be displacing the federally threatened Northern Spotted Owl (Strix occidentalis caurina). Our objectives were to describe the current status of Barred Owls in Oregon and compare occupancy of Spotted Owls in historic Spotted Owl territories before and after Barred Owls were first detected in those territories. Between 1974 and 1998, we estimated that 706 different Barred Owl territories were located in Oregon. From 1989–1998 an average of 60 new Barred Owl terri

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10

Chi, Tonja Y. "First Record of the Northern Spotted Owl Nesting in Forest Burned at the Highest Level of Severity." Western Birds 55, no. 4 (2025): 293–303. https://doi.org/10.21199/wb55.4.4.

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An instance of the Northern Spotted Owl (Strix occidentalis caurina) nesting successfully in severely burned forest indicates that under some circumstances, such habitat may indeed provide the species suitable habitat. Current forest-management approaches treat wildfire as the primary cause of habitat loss for both the Northern and California (S. o. occidentalis) Spotted Owls. Assumptions that severely burned forest does not provide any viable nesting or roosting habitat for these Spotted Owl subspecies has resulted in substantial post-fire logging and removal of burned trees throughout both o

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11

Andrews, Lawrence S., John P. Perkins, James A. Thrailkill, Nathan J. Poage, and John C. Tappeiner II. "Silvicultural Approaches to Develop Northern Spotted Owl Nesting Sites, Central Coast Ranges, Oregon." Western Journal of Applied Forestry 20, no. 1 (2005): 13–27. http://dx.doi.org/10.1093/wjaf/20.1.13.

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Abstract The life-history requirements of northern spotted owls (Strix occidentalis caurina), a federally listed “threatened” species, are associated with late-successional habitats. Nesting sites are an important habitat requirement for spotted owls. We used an individual-tree, distance-independent growth model to explore a range of management scenarios for young Douglas-fir stands (age class 50 years) and estimated which scenarios promoted the development of forest patches that emulate the species mix and diameter distributions at known spotted owl nest sites in the central Coast Ranges of O

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12

B. Lindenmayer, David, and Tony W. Norton. "The conservation of Leadbeater's Possum in southeastern Australia and the Northern Spotted Owl in the Pacific north-west of the USA; management issues, strategies and lessons." Pacific Conservation Biology 1, no. 1 (1994): 13. http://dx.doi.org/10.1071/pc930013.

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Aspects of the conservation and management of the endangered species Leadbeater's Possum Gymnobelideus leadbeateri in southeastern Australia and the Northern Spotted Owl Strix occidentalis caurina in the Pacific north-west of the USA are similar in their nature and the intensity of public debate. Both species occur in temperate forests that are also used for intensive wood production. Due to historial factors and present forestry management regimes, a major conflict in land-use exists between the conservation of these animals and intensive timber harvesting in both geographic regions. The long

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13

Hanson, Chad T., Monica L. Bond, and Derek E. Lee. "Effects of post-fire logging on California spotted owl occupancy." Nature Conservation 24 (January 18, 2018): 93–105. https://doi.org/10.3897/natureconservation.24.20538.

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In fire-adapted forest ecosystems around the world, there has been growing concern about adverse impacts of post-fire logging on native biodiversity and ecological processes. This is also true in conifer forests of California, U.S.A. which are home to a rare and declining owl subspecies, the California spotted owl (Strix occidentalis occidentalis). While there has been recent concern about the California spotted owl occupancy in large fire areas where some territories have substantial high-severity fire effects, the influence of post-fire logging on the California spotted owl occupancy has bee

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14

Nadeem, Muhammad Sajid, Syed Israr Shah, Amjad Rashid Kayani, Syed Muhammad Khalid Imran, and Tariq Mahmood. "A comparative study of the diets of barn owl (Tyto alba) and spotted owlet (Athene brama) inhabiting Ahmadpur East, Southern Punjab, Pakistan." Animal Biology 62, no. 1 (2012): 13–28. http://dx.doi.org/10.1163/157075511x597593.

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AbstractThe diets of the barn owl (Tyto alba) and the spotted owlet (Athene brama) inhabiting the periphery of the Cholistan Desert at Ahmedpur East, southern Punjab were compared. Pellets of the two owl species were analyzed to learn more about their diets. The barn owl mainly consumed Suncus murinus (60.2%), birds (24.1%) and rodents (12.7%), while the spotted owlet depended on Mus species (36.8%), Suncus murinus (20.1%), birds (14.1%), reptiles (8.9%) and insects (6.7%) for its food. There was a low degree of food overlap of the two owls among the seasons.

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15

Hicks, Lorin L., Henning C. Stabins, and Dale R. Herter. "Designing Spotted Owl Habitat in a Managed Forest." Journal of Forestry 97, no. 7 (1999): 20–25. http://dx.doi.org/10.1093/jof/97.7.20.

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Abstract The perception that old-growth alone provides habitat for the northern spotted owl both contributed to its listing as a threatened species and may have hampered recovery efforts by targeting management solutions at old-growth forests. New information suggests that young forests can contribute to conservation efforts for the species. Observations of daytime roost sites in young forests, selectively harvested stands, and precommercially thinned stands suggest that the structural diversity spotted owls need may be provided by design in western Washington's western hemlock-Douglas-fir man

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16

Bond, Monica L., Mark E. Seamans, and R. J. Gutiérrez. "Modeling Nesting Habitat Selection of California Spotted Owls (Strix occidentalis occidentalis) in the Central Sierra Nevada Using Standard Forest Inventory Metrics." Forest Science 50, no. 6 (2004): 773–80. http://dx.doi.org/10.1093/forestscience/50.6.773.

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Abstract California spotted owl (Strix occidentalis occidentalis) nest sites are associated with large trees, moderate-to-high tree densities, high canopy cover, and structural complexity. Therefore, forest managers need accurate estimates of these characteristics. Standard forest inventory metrics, such as those estimated from Forest Inventory and Analysis (FIA) data, are used by silviculturists to assess forest trends and condition, and are a source of data for assessing wildlife habitat. We estimated which FIA metrics best predicted California spotted owl nesting habitat by developing a nes

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17

Seamans, Mark E., R. J. Gutiérrez, and Christopher A. May. "Mexican Spotted Owl (Strix Occidentalis) Population Dynamics: Influence of Climatic Variation on Survival and Reproduction." Auk 119, no. 2 (2002): 321–34. http://dx.doi.org/10.1093/auk/119.2.321.

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Abstract Understanding the mechanisms causing temporal variability in demographic parameters is essential to understanding fluctuations in populations. As part of a long-term demographic study, we evaluated influence of climate on Mexican Spotted Owl (Strix occidentalis lucida) annual survival and reproduction in two study areas, one in Arizona and one in New Mexico. Spotted Owl survival in New Mexico and reproductive output in both study areas were positively related to total amounts of precipitation from the previous year, previous winter, or monsoon season. For both study areas, temporal pr

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18

Van Deusen, Paul C., Larry L. Irwin, and Tracy L. Fleming. "Survival estimates for the northern spotted owl." Canadian Journal of Forest Research 28, no. 11 (1998): 1681–85. http://dx.doi.org/10.1139/x98-149.

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An analysis of capture-recapture data is tailored to the biological characteristics of the female northern spotted owl (Strix occidentalis caurina) by conditioning female capture on capture of paired males. This procedure is relevant for animals such as the northern spotted owl where field studies indicate that capture of females generally is dependent on capture of their mates. Application of the method to data collected in Washington State suggests that survival rates for adult females have remained constant over the time span of our data, 1990-1997.

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19

Jenness, Jeffrey S., Paul Beier, and Joseph L. Ganey. "Associations between Forest Fire and Mexican Spotted Owls." Forest Science 50, no. 6 (2004): 765–72. http://dx.doi.org/10.1093/forestscience/50.6.765.

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Abstract In 1993, the US Fish and Wildlife Service listed the Mexican spotted owl (Strix occidentalis lucida) as threatened, in part because of the rising threat to its habitat from stand-replacing wildfires. In 1997, we surveyed 33 owl sites that, in the previous four years, had burned at various levels ranging from light controlled burns to stand-replacing fires. We compared owl occupancy and reproduction in these burned sites to 31 unburned owl sites with similar habitat and topography. Although unburned sites showed higher proportions of both occupancy and reproduction, the negative relati

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20

Hanson, Chad T., Derek E. Lee, and Monica L. Bond. "Disentangling Post-Fire Logging and High-Severity Fire Effects for Spotted Owls." Birds 2, no. 2 (2021): 147–57. http://dx.doi.org/10.3390/birds2020011.

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The Spotted Owl is a rare and declining raptor inhabiting low/middle-elevation forests of the Pacific Northwest, California, and the Southwest in the USA. It is well established that Spotted Owls select dense, mature, or old forests for nesting and roosting. High-severity fire transforms such forests into a unique forest type known as “snag forest habitat”, which the owls select for foraging. This habitat is disproportionately targeted by post-fire logging projects. Numerous recent articles have explored the influence of high-severity fire and post-fire logging on this species. Studies have sh

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21

Freudenburg, William R., Lisa J. Wilson, and Daniel J. O'Leary. "Forty Years of Spotted Owls? A Longitudinal Analysis of Logging Industry Job Losses." Sociological Perspectives 41, no. 1 (1998): 1–26. http://dx.doi.org/10.2307/1389351.

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The protection of habitat for an officially designated “threatened” species, the Northern Spotted Owl, is widely seen as having endangered the survival of a very different “species,” namely the rural American logger. In spite of the widespread agreement on this point, however, it is not clear just how many jobs have been endangered, over just how long a period, due to the protection of spotted-owl habitat and of the environment more broadly. In the present paper, we analyze longer term employment trends in logging and milling, both nationally and in the two states of the Pacific Northwest wher

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22

Hanson, Chad T. "Is “Fuel Reduction” Justified as Fire Management in Spotted Owl Habitat?" Birds 2, no. 4 (2021): 395–403. http://dx.doi.org/10.3390/birds2040029.

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The California Spotted Owl is an imperiled species that selects mature conifer forests for nesting and roosting while actively foraging in the “snag forest habitat” created when fire or drought kills most of the trees in patches. Federal agencies believe there are excess surface fuels in both of these habitat conditions in many of California’s forests due to fuel accumulation from decades of fire suppression and recent drought-related tree mortality. Accordingly, agencies such as the U.S. Forest Service are implementing widespread logging in Spotted Owl territories. While they acknowledge habi

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23

Wiens, J. David, Katie M. Dugger, J. Mark Higley, et al. "Invader removal triggers competitive release in a threatened avian predator." Proceedings of the National Academy of Sciences 118, no. 31 (2021): e2102859118. http://dx.doi.org/10.1073/pnas.2102859118.

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Changes in the distribution and abundance of invasive species can have far-reaching ecological consequences. Programs to control invaders are common but gauging the effectiveness of such programs using carefully controlled, large-scale field experiments is rare, especially at higher trophic levels. Experimental manipulations coupled with long-term demographic monitoring can reveal the mechanistic underpinnings of interspecific competition among apex predators and suggest mitigation options for invasive species. We used a large-scale before–after control–impact removal experiment to investigate

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24

Rosenberg, Daniel K., Keith A. Swindle, and Robert G. Anthony. "Influence of prey abundance on northern spotted owl reproductive success in western Oregon." Canadian Journal of Zoology 81, no. 10 (2003): 1715–25. http://dx.doi.org/10.1139/z03-167.

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The hypothesis that high temporal variability of northern spotted owl (Strix occidentalis caurina) reproductive success is a response to prey abundance remains largely untested. We evaluated this relationship in the Oregon Cascade Mountains. Despite similar biomass of northern flying squirrels (Glaucomys sabrinus) (169 ± 13.9 g/ha) and deer mice (Peromyscus maniculatus) (160 ± 18.8 g/ha), flying squirrels dominated the breeding season diet based on both biomass (49%) and numbers (40%). Abundance of flying squirrels and western red-backed voles (Clethrionomys californicus) was more variable spa

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25

Proctor, James D., and Stephanie Pincetl. "Nature and the Reproduction of Endangered Space: The Spotted Owl in the Pacific Northwest and Southern California." Environment and Planning D: Society and Space 14, no. 6 (1996): 683–708. http://dx.doi.org/10.1068/d140683.

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Recent efforts to protect biodiversity in the United States often reproduce the literal and figurative divisions of space that have originally endangered target species. Nature as redefined by these efforts is as much a social construction as it is some biophysical entity under siege by humans, We focus on the categorical and spatial distinctions between landscapes prioritized for protection and landscapes given less priority or ignored altogether. These distinctions, we wish to demonstrate, reflect pragmatic considerations of habitat quality and political expediency, but they also are enmeshe

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Hamer, Thomas E., Eric D. Forsman, and Elizabeth M. Glenn. "Home Range Attributes and Habitat Selection of Barred Owls and Spotted Owls in an Area of Sympatry." Condor 109, no. 4 (2007): 750–68. http://dx.doi.org/10.1093/condor/109.4.750.

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Abstract We compared home range areas and habitat selection of radio-marked Spotted Owls (Strix occidentalis) and Barred Owls (Strix varia) in an area of sympatry in the northern Cascade Range of Washington in 1986–1989. On average, home ranges of Spotted Owls were 3–4 times larger than ranges of Barred Owls, and there was little overlap of home ranges during the breeding season. Ranges of both species tended to expand during winter. Home range size of both species was negatively correlated with the amount of old forest, but the negative slope of the regression was much steeper for Spotted Owl

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27

Irwin, Larry L., Dennis F. Rock, Suzanne C. Rock, Amanda K. Heyerly, and Laurie A. Clark. "Barred Owl Effects on Spotted Owl Resource Selection: A Meta‐Analysis." Journal of Wildlife Management 84, no. 1 (2019): 96–117. http://dx.doi.org/10.1002/jwmg.21784.

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28

Simberloff, Daniel, and George A. Craig. "The Spotted Owl and Wise Forest Use." Condor 91, no. 2 (1989): 496. http://dx.doi.org/10.2307/1368336.

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29

Lahaye, William S., R. J. Gutierrez, and H. Resit Akcakaya. "Spotted Owl Metapopulation Dynamics in Southern California." Journal of Animal Ecology 63, no. 4 (1994): 775. http://dx.doi.org/10.2307/5255.

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30

Blakesley, Jennifer A., David R. Anderson, and Barry R. Noon. "Breeding Dispersal In the California Spotted Owl." Condor 108, no. 1 (2006): 71. http://dx.doi.org/10.1650/0010-5422(2006)108[0071:bditcs]2.0.co;2.

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31

Seamans, Mark E., R. J. Gutierrez, Christopher A. May, and M. Zachariah Peery. "Demography of Two Mexican Spotted Owl Populations." Conservation Biology 13, no. 4 (1999): 744–54. http://dx.doi.org/10.1046/j.1523-1739.1999.98302.x.

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32

Wilcove, David, and Dennis Murphy. "The Spotted Owl Controversy and Conservation Biology." Conservation Biology 5, no. 3 (1991): 261–62. http://dx.doi.org/10.1111/j.1523-1739.1991.tb00134.x.

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33

Dixon, Kenneth R., and Thomas C. Juelson. "The Political Economy of the Spotted Owl." Ecology 68, no. 4 (1987): 772–76. http://dx.doi.org/10.2307/1938347.

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34

Blakesley, Jennifer A., David R. Anderson, and Barry R. Noon. "Breeding Dispersal In the California Spotted Owl." Condor 108, no. 1 (2006): 71–81. http://dx.doi.org/10.1093/condor/108.1.71.

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Abstract Spotted Owls (Strix occidentalis) are territorial, generally nonmigratory, and strongly philopatric. Nevertheless, California Spotted Owls (S. o. occidentalis) exhibited breeding dispersal during 7% of interannual observations of banded individuals (n = 54 of 743 occasions). Based on ecological theory and published literature, we made a priori predictions about the factors associated with the probability of breeding dispersal and breeding dispersal distance, and about the consequences of dispersal. Breeding dispersal probability was higher for younger owls, single owls, paired owls th

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35

Sample, V. Alaric, and Dennis C. Le Master. "Economic Effects of Northern Spotted Owl Protection." Journal of Forestry 90, no. 8 (1992): 31–35. http://dx.doi.org/10.1093/jof/90.8.31.

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36

A. MacFarlane, M., and R. H. Loyn. "Management for the conservation of Leadbeater's Possum (Gymnobelideus leadbeateri) - a reply." Pacific Conservation Biology 1, no. 2 (1994): 84. http://dx.doi.org/10.1071/pc940084.

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We welcome the opportunity to respond to Lindenmayer and Norton (1993) on behalf of those involved in management of the endangered Leadbeater's Possum. We agree that much can be learned from overseas experience, including work on the Northern Spotted Owl in USA. However, we do not share those authors' jaundiced and negative views about our developing management strategies and believe that comparisons with proposed conservation measures for the Northern Spotted Owl, as presented, are misleading. Their paper is particularly disappointing in view of the substantial achievements made towards conse

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B. Lindenmayer, David. "Rebuttal." Pacific Conservation Biology 1, no. 2 (1994): 86. http://dx.doi.org/10.1071/pc940086.

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Mr. Macfarlane and Mr. Loyn have failed to recognize the main thrust of the recent article comparing the development of management strategies for the conservation of the Northern Spotted Owl in the Pacific Northwest of the USA and Leadbeater's Possum in Central Victoria (Lindenmayer and Norton 1993). The key issue was not to compare the biology of the respective taxa; that would be nonsensical. Rather, it was to highlight that, unlike the management of Leadbeater's Possum (Macfarlane and Seebeck 1991), conservation strategies for the Northern Spotted Owl have now been developed that are ecolog

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Gutiérrez, R. J., and George F. Barrowclough. "Redefining the Distributional Boundaries of the Northern and California Spotted Owls: Implications for Conservation." Condor 107, no. 1 (2005): 182–87. http://dx.doi.org/10.1093/condor/107.1.182.

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Abstract The Northern Spotted Owl (Strix occidentalis caurina) is listed as a threatened species. However, the range description given at the time of listing is inconsistent with the range delineation given by the American Ornithologists' Union checklist of North American birds. Despite the quandary that this inconsistency represents regarding the area of protection afforded the Northern Spotted Owl, the range used in listing is consistent with the actual range suggested by mtDNA haplotypes diagnostic for the subspecies. The range description used in the listing decision of the Northern Spotte

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39

Gutierrez, R., and Sarah Rinkevich. "Distribution and Abundance of Spotted Owls in Zion Natioinal Park." UW National Parks Service Research Station Annual Reports 14 (January 1, 1990): 193–98. http://dx.doi.org/10.13001/uwnpsrc.1990.2941.

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The recent listing of the Northern spotted owl (Strix occidentalis caurina) by the U.S. Fish and Wildlife Service as a threatened species (Federal Register 1990) raises heated debate concerning the long-term survival of the species and perceived economic cost to timber industry (Thomas et al. 1988). Long term studies of the owls's ecology are necessary to provide information needed for ecologically based management plans (Dawson et al. 1987). Much is already known about the natural and life history of the Northern spotted owl (Forsman et al. 1984, Gutierrez et al. 1984, Gutierrez 1985, Frankli

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40

Meyer, Joseph, Larry Irwin, and Mark Boyce. "Influence of Habitat Fragmentation on Spotted owl Site Selection, Site Occupancy, and Reproductive Status in Western Oregon." UW National Parks Service Research Station Annual Reports 13 (January 1, 1989): 241–42. http://dx.doi.org/10.13001/uwnpsrc.1989.2845.

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Currently there is little empirical evidence to guide decision makers on how to manage for viable populations of the Northern Spotted Owl (Strix occidentalis caurina) and how to decide what extent and what types of timber harvesting do not adversely affect Spotted Owls. In this ongoing study we are addressing some of the urgent research needs related to Spotted Owls by testing the null hypotheses that various forms of forest fragmentation do not affect (1) site selection, (2) site occupancy, or (3) reproductive success of Spotted Owls at sites within the Bureau of Land Management (BLM) checker

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Wiens, J. David, Robert G. Anthony, and Eric D. Forsman. "Barred owl occupancy surveys within the range of the northern spotted owl." Journal of Wildlife Management 75, no. 3 (2011): 531–38. http://dx.doi.org/10.1002/jwmg.82.

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42

Ganey, Joseph L., William M. Block, and Steven H. Ackers. "Structural Characteristics of Forest Stands Within Home Ranges of Mexican Spotted Owls in Arizona and New Mexico." Western Journal of Applied Forestry 18, no. 3 (2003): 189–98. http://dx.doi.org/10.1093/wjaf/18.3.189.

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Abstract As part of a set of studies evaluating home-range size and habitat use of radio-marked Mexican spotted owls (Strix occidentalis lucida), we sampled structural characteristics of forest stands within owl home ranges on two study areas in Arizona and New Mexico. Study areas were dominated by ponderosa pine (Pinus ponderosa)–Gambel oak (Quercus gambelii) forest (Arizona) or mixed-conifer forest (New Mexico). We describe structural characteristics of forest stands used by spotted owls for both foraging and roosting, in terms of central tendencies and variability in structural characterist

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Ganey, Joseph L. "THERMAL REGIMES OF MEXICAN SPOTTED OWL NEST STANDS." Southwestern Naturalist 49, no. 4 (2004): 478–86. http://dx.doi.org/10.1894/0038-4909(2004)049<0478:tromso>2.0.co;2.

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44

Vernon, Jen. "Three Poems: ‘Charleena Chavon Lyles’, ‘Spotted Owl’, ‘Economics’." Journal of Working-Class Studies 5, no. 3 (2020): 48–51. http://dx.doi.org/10.13001/jwcs.v5i3.6309.

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This collection of poems is based in working-class life through an intersectional lens on the west coast of the US. It includes a documentary poem to a young Black woman, Charleena Chavon Lyles, who has been elegized by the Black Lives Matter (BLM) movement in Seattle. It draws on news articles and an obituary to support its truth claims and aims to counter the official police report and support the global, working class, BLM movement. ‘Spotted Owl’ is a poem that talks back to the opposition between loggers and the forest, in part from the point of view of an old growth tree. It highlights th

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Sovern, Stan G., Eric D. Forsman, Brian L. Biswell, David N. Rolph, and Margaret Taylor. "Diurnal Behavior of the Spotted Owl in Washington." Condor 96, no. 1 (1994): 200–202. http://dx.doi.org/10.2307/1369078.

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Stone, R. "Spotted Owl Plan Kindles Debate on Salvage Logging." Science 261, no. 5119 (1993): 287. http://dx.doi.org/10.1126/science.261.5119.287.

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Seamans, Mark E., R. J. Gutierrez, Christine A. Moen, and M. Zachariah Peery. "Spotted Owl Demography in the Central Sierra Nevada." Journal of Wildlife Management 65, no. 3 (2001): 425. http://dx.doi.org/10.2307/3803094.

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Cooper, John. "In Trouble in Canada - The Northern Spotted Owl." Biodiversity 6, no. 4 (2006): 10–11. http://dx.doi.org/10.1080/14888386.2005.9712779.

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MONTGOMERY, CLAIRE, and GARDNER M. BROWN. "ECONOMICS OF SPECIES PRESERVATION: THE SPOTTED OWL CASE." Contemporary Economic Policy 10, no. 2 (1992): 1–12. http://dx.doi.org/10.1111/j.1465-7287.1992.tb00220.x.

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Thompson, Ian D. "Could marten become the spotted owl of eastern Canada?" Forestry Chronicle 67, no. 2 (1991): 136–40. http://dx.doi.org/10.5558/tfc67136-2.

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Conservation of spotted owl habitat in western North America illustrates the difficult decisions that must be taken and the conflicts that can arise in land-use planning. In eastern North America, spotted owls are absent but marten, an animal species which prefers old-growth forest, has become rare in some areas as a result of habitat loss. The marten is a threatened species in Newfoundland, exists in small numbers in Nova Scotia, and has been extirpated in Prince Edward Island. Lack of long-term integrated forest resource planning, short rotations, and silvicultural practices that produce sub

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