Reference health
Woody vegetation and canopy fragmentation along a forest-to-urban gradient
37/37 checkable references clean · checked 2026-07-22
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
21 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 37 checked references that resolve
resolves10.1016/S0006-3207(96)00056-0
Butterfly diversity and human land use: Species assemblages along an urban grandient
resolves10.1890/1051-0761(1999)009[0164:BABAAU]2.0.CO;2
BIRDS AND BUTTERFLIES ALONG AN URBAN GRADIENT: SURROGATE TAXA FOR ASSESSING BIODIVERSITY?
resolves10.1007/978-1-4615-1261-5_3
Birds and Butterflies Along Urban Gradients in Two Ecoregions of the United States: Is Urbanization Creating a Homogeneous Fauna?
resolves10.1046/j.1523-1739.1997.96307.x
Breeding Bird Abundance in an Urbanizing Landscape in Coastal Southern California
resolves10.1674/0003-0031(2002)147[0060:DPRAAB]2.0.CO;2
Diminished Plant Richness and Abundance Below Lonicera maackii, an Invasive Shrub
resolves10.2307/1366729
An Urban Bird Community in Tucson, Arizona: Derivation, Structure, Regulation
resolves10.2307/3237364
Temporal variation in the woody understory of an old‐growth <i>Fagus‐Acer</i> forest and implications for overstory recruitment
resolves10.1111/j.1600-0587.1999.tb00542.x
Predation on artificial bird nests along an urban gradient: predatory risk or relaxation in urban environments?
resolves10.1016/0038-0717(94)00185-4
CH4 uptake and N availability in forest soils along an urban to rural gradient
resolves10.1674/0003-0031(2000)144[0036:EOTEIS]2.0.CO;2
Effects of the Exotic Invasive Shrub Lonicera maackii on the Survival and Fecundity of Three Species of Native Annuals
resolves10.1023/A:1018523511071
Understory plant species composition in remnant stands along an urban-to-rural land-use gradient
resolves10.1046/j.1523-1739.1997.96001.x
Invasibility and Effects of Amur Honeysuckle in Southwestern Ohio Forests
resolves10.2307/2426353
Seedling Distribution and Potential Persistence of the Exotic Shrub Lonicera maackii in Fragmented Forests
resolves10.2307/1938259
Ecosystem Structure and Function along Urban‐Rural Gradients: An Unexploited Opportunity for Ecology
resolves10.1007/978-1-4612-0905-8_15
The Application of the Ecological Gradient Paradigm to the Study of Urban Effects
resolves10.1078/1439-1791-00051
Effects of urban land use on pollinator (Hymenoptera: Apoidea) communities in a desert metropolis
resolves10.1016/S0169-2046(00)00122-5
Ground arthropod community structure in a heterogeneous urban environment
resolves10.2307/1368320
Effects of Urbanization on Breeding Bird Community Structure in Southwestern Desert Habitats
resolves10.1023/A:1011190902041
resolves10.1007/BF00282943
Heavy metal accumulations in forest soils along an urban- rural gradient in Southeastern New York, USA
resolves10.1139/x90-085
Gap dynamics in an Ohio <i>Acer</i>–<i>Fagus</i> forest and speculations on the geography of disturbance
The 21 references without a DOI — listed, not checked
no DOI — not checkedAdams, L.W. (1994) Urban Wildlife Habitats. University of Minnesota Press, Minneapolis, MN.
no DOI — not checkedAlig, R.J. and Healy, R.G. (1987) Urban and built-up land area changes in the United States: an empirical investigation of determinants. Landscape Ecology
63, 215–226.
no DOI — not checkedAutocad Software (1996) Autocad Version 13. Autodesk Inc., San Rafael, CA.
no DOI — not checkedBailey, R.G., Avers, P.E., King, T. and McNab, W.H. (eds.) (1994) Ecoregions and subregions of the United States (map). Scale 1:7,500,000; colored. USGS, Washington, DC.
no DOI — not checkedBlackwell, W.H. (1976) Guide to the Woody Plants of the Tri-State Area. Kendall-Hunt, Dubuque, IA.
no DOI — not checkedBraun, E.L. (1950) Deciduous Forests of Eastern North America. Hafner, New York.
no DOI — not checkedBraun, E.L. (1989) The Woody Plants of Ohio. Ohio State University Press, Columbus, OH.
no DOI — not checkedDrake, J.A, Mooney, H.A., di Castri, F., Groves, R.H., Kruger, F.J., Rejmanek, M. and Williamson, M. (eds.) (1989) Biological Invasions: A Global Perspective. Scope 37. John Wiley and Sons, Chichester, United Kingdom.
no DOI — not checkedEspenshade, E.B., Jr. (ed.) (1995) Goode's World Atlas. Rand McNally and Company, Skokie, IL.
no DOI — not checkedFamighetti, R. (ed.) (1996) The World Almanac and Book of Facts—1997. K-111 Reference Corporation, Mahwah, NJ.
no DOI — not checkedJMP Software (2000) JMP Version 4. SAS Institute, Cary, NC.
no DOI — not checkedMcCune, B. and Mefford, M.J. (1999) PC-ORD. Multivariate Analysis of Ecological Data, Version 4. MjM Software Design, Gleneden Beach, OR.
no DOI — not checkedMooney, H.A. and Drake, J.A. (eds.) (1986) Ecology and Biological Invasions of North America and Hawaii. Springer-Verlag, New York, NY.
no DOI — not checkedNatural Resources Conservation Service. (2000) 1997 National Resources Inventory Summary Report. USDA, Washington, D.C.
no DOI — not checkedPickett, S.T.A. and White, P.S. (1985) The Ecology of Natural Disturbance and Patch Dynamics. Academic Press, Orlando, FL.
no DOI — not checkedPouyat, R.V., McDonnell, M.J., Pickett, S.T.A., Groffman, P.M., Carreiro, M.M., Parmelee, R.W., Medley, K.E. and Zipperer, W.C. (1995) Carbon and nitrogen dynamics in oak stands along an urban-rural gradient. In Carbon Forms and Functions in Forest Soils (J.M. Kelly and W.W. McFee, eds.), pp 569–587. Soil Science Society of America, Madison, WI.
no DOI — not checkedShannon, C.E. and Weaver, W. (1949) The Mathematical Theory of Communication. University of Illinois Press, Urbana, IL.
no DOI — not checkedVankat, J.L., Blackwell, W.H. and Hopkins, W.E. (1975) The dynamics of Hueston Woods and a review of the question of the successional status of the southern beech-maple forest. Castanea
40, 290–308.
no DOI — not checkedWhittaker, R.H. (1975) Communities and Ecosystems. Second Edition. MacMillan, New York, NY.
no DOI — not checkedWorld Resources Institute (1994a) World Resources 1994–1995: A Guide to the Global Environment. Oxford University Press, New York, NY.
no DOI — not checkedWorld Resources Institute (1994b) Information Please Environmental Almanac. Houghton Mifflin Company, Boston, MA.
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