The spatial extent and relative influence of landscape-level factors on wintering bird populations
- Scott M. Pearson
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The influences of the landscape matrix (complex of habitats surrounding a study plot) and within-patch vegetation were studied in bird communities wintering in the piedmont of Georgia, USA. Variation at the landscape and within-patch levels was controlled to reduce the likelihood of confounding and spurious relationships. The landscape matrix within 500 m of each study plot was quantified from aerial photographs. Statistical models using landscape matrix and within-patch vegetation variables explained 73–84% of variation in bird abundance and diversity among sites with landscape matrix variables accounting for 30–90% of the variation. Variation in bird species richness and diversity was explained solely by landscape variables. Models for individual species such as Carolina Wrens (Thyrothorus ludovicianus) and Rufous-sided Towhees (Pipilo erythrophthalmus) had r2 > 0.80, with the landscape matrix variables accounting for the majority of this variation. However, other species like Northern Cardinals (Cardinalis cardinalis) and White-throated Sparrows (Zonotrichia albicollis) were most strongly influenced by within-plot vegetation. The landscape influence extended beyond habitats immediately adjacent to the study plots as indicated by significant variables describing variation in more distant habitat patches. These analyses illustrate a technique for comparing the strength of within-patch versus landscape influences and measuring the spatial extent of the landscape influence in fine-grained landscapes.
Report No. 3955, Environmental Sciences Division, Oak Ridge National Laboratory.
- Addicott, J.F., Aho, J.M., Antolin, M.R., Padilla, D.K., Richardson, J.S. and Soluk, D.A. 1987. Ecological neighborhoods: scaling environmental patterns. Oikos 49: 340–346.
- Askins, R.A. and Philbrick, M.J. 1987. Effect of changes in regional forest abundance on the decline and recovery of a forest bird community. Wilson Bull. 99: 7–21.
- Austin, O.L. 1968. Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies. U.S. National Museum Bulletin 237.
- Bach, C.E. 1988. Effects of host plant patch size on herbivore density: underlying mechanisms. Ecology 69: 1103–1117.
- Blake, J.G. and Karr, J.R. 1987. Breeding birds of isolated woodlots: area and habitat relationships. Ecology 68: 1724–1734.
- Butcher, G.S., Niering, W.A., Barry, W.J. and Goodwin, R.H. 1981. Equilibrium biogeography and the size of nature preserves: an avian case study. Oecologia 49: 29–37.
- CERL. 1989. GRASS-GRID, version 3.1. U.S. Army Corps of Engineers. Construction Engineering and Research Laboratory.
- Dunning, J.B. Jr., Danielson, B.J. and Pulliam, H.R. 1991. Processes that affect populations at the level of the landscape. Oikos (in review).
- Forman, R.T.T. and Godron, M. 1986. Landscape ecology. Wiley and Sons, New York.
- Freemark, K.E. and Merriam, H.G. 1986. Importance of area and habitat heterogeneity to bird assemblages in temperate forest fragments. Biol. Conserv. 36: 115–141.
- Gardner, R.H., O'Neill, R.V., Turner, M.G. and Dale, V.H. 1989. Quantifying scale-dependent effects of animal movement with simple percolation models. Landsc. Ecol. 3: 217–227.
- Hamel, P.B., Legrand, H.E., Lennartz, M.R. and Gauthreaux, S.A. 1982. Bird habitat relationships on southeastern forest lands. U.S. Forest Service General Technical Report SE-22. 417 pp.
- Hurlbert, S.H. 1984. Pseudoreplication and the design of ecological experiments. Ecol. Monogr. 54: 187–211.
- Johnson, R.A. and Wichern, D.W. 1988. Applied multivariate statistical analysis, 2nd ed. Prentice Hall, Englewood Cliffs, New Jersey.
- Kendeigh, S.C. 1944. Measurement of bird populations. Ecol. Monogr. 14: 67–106.
- Kroodsma, R.L. 1982. Bird community ecology on power-line corridors in east Tennessee. Biol. Conserv. 23: 79–94.
- Lima, S.L., Wiebe, K.L. and Dill, L.M. 1987. Protective cover and the use of space by finches: is closer better? Oikos 50: 225–230.
- Mills, G.S., Dunning, J.B. Jr. and Bates, J.M. 1991. The relationship between breeding bird density and vegetation volume. Wilson Bull. 103: 468–479.
- Morgan, K.A. and Gates, J.E. 1982. Bird population patterns in forest edge and strip vegetation at Remington Farms, Maryland. J. Wildl. Manage. 46: 933–944.
- O'Neill, R.V., Milne, B.T., Turner, M.G. and Gardner, R.H. 1988. Resource utilization scales and landscape pattern. Landsc. Ecol. 2: 63–69.
- Pearson, S.M. 1991a. Food patches and the spacing of individual foragers. Auk 108: 355–362.
- Pearson, S.M. 1991b. Influence of the surrounding landscape on wintering bird communities of old field habitats. Ph.D. dissertation. University of Georgia, Athens, Georgia, U.S.A.
- Pulliam, H.R. and Danielson, B.J. 1991. Sources, sinks and habitat selection: a landscape perspective on population dynamics. Am. Nat. 137: S50-S66.
- Pulliam, H.R. and Enders, F.A. 1971. The feeding ecology of five sympatric finch species. Ecology 52: 557–566.
- Pulliam, H.R. and Mills, G.S. 1977. The use of space by wintering sparrows. Ecology 58: 1393–1399.
- Quay, T.L. 1947. Winter birds of upland plant communities. Auk 64: 382–388.
- Radford, A.E., Ahles, H.E. and Bell, C.R. 1968. Manual of the vascular flora of the Carolinas. The University of North Carolina Press, Chapel Hill.
- Raivio, S. and Haila, Y. 1990. Bird assemblages in silvicultural habitat mosaics in southern Finland during the breeding season. Ornis Fennica 67: 73–83.
- SAS. 1987. SAS, version 6.03. SAS Institute Inc., Cary, NC 27512–8000 U.S.A.
- Schneider, K.J. 1984. Dominance, predation and optimal foraging in white-throated sparrow flocks. Ecology 65: 1820–1827.
- Shannon, C.E. and Weaver, W. 1948. The mathematical theory of communication. Univ. of Illinois Press, Urbana.
- Sokal, R.R. and Rohlf, F.J. 1981. Biometry, 2nd ed. W.H. Freeman and Company, New York.
- Strong, T.R. and Bock, C.E. 1990. Bird species distribution patterns in riparian habitats in southeastern Arizona. Condor 92: 866–885.
- Temple, S.A. and Cary, J.R. 1988. Modeling dynamics of habitat-interior bird populations in fragmented landscapes. Conserv. Biol. 4: 340–347.
- Watts, B.D. 1990. Cover use and predator-related mortality in song and savannah sparrows. Auk 107: 775–778.
- Watts, B.D. 1991. Segregation of an old field sparrow community along a cover gradient: effects of cover-dependency on spatial co-occurrence. Submitted.
- Wiens, J.A. 1989. Spatial scaling in ecology. Func. Ecol. 3: 385–397.
- Wiens, J.A. and Milne, B.T. 1989. Scaling of ‘landscapes’ in landscape ecology, or, landscape ecology from a beetle's perspective. Landsc. Ecol. 3: 87–96.
- Wilcove, D.S., McLellan, C.H. and Dobson, A.P. 1986. Habitat fragmentation in the temperate zone. In Conservation Biology: the science of scarcity and diversity. pp. 237–256. Edited by M.E. Soule. Sinauer Associates, Inc., Sunderland, Massachusetts.
- The spatial extent and relative influence of landscape-level factors on wintering bird populations
Volume 8, Issue 1 , pp 3-18
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- Kluwer Academic Publishers
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- species diversity
- Scott M. Pearson (1)
- Author Affiliations
- 1. Department of Zoology and Institute of Ecology, University of Georgia, 30602, Athens, GA, USA