Scatter-hoarding corvids as seed dispersers for oaks and pines: A review of a widely distributed mutualism and its utility to habitat restoration

Condor

Volumn 118, Issue 2, 2016, Pages 215-237

  Pesendorfer, Mario B ^a,b,c   Sillett, T Scott ^b   Koenig, Walter D ^c,d   Morrison, Scott A ^e  

^a UNIVERSITY OF NEBRASKA   (United States)

^b SMITHSONIAN CONSERVATION BIOLOGY INSTITUTE   (United States)

^c Johnson Center for Birds and Biodiversity   (United States)

^d Department of Molecular Biology and Genetics   (United States)

^e THE NATURE CONSERVANCY   (United States)

Author keywords

Corvidae; ecosystem engineer; habitat restoration; Pinus; Quercus; scatter hoarding; seed dispersal

Indexed keywords

EID: 84957837946     PISSN: 00105422     EISSN: None     Source Type: Journal    
DOI: 10.1650/CONDOR-15-125.1     Document Type: Review

References (216)

1. Abrams, M. D. (2003). Where has all the white oak gone? BioScience 53:927-939.
2. Alcańtara, J. M., P. J. Rey, F. Valera, and A. M. Sańchez-Lafuente (2000). Factors shaping the seedfall pattern of a birddispersed plant. Ecology 81:1937-1950.
3. Anderson, L. J., M. S. Brumbaugh, and R. B. Jackson (2001). Water and tree-understory interactions: A natural experiment in a savanna with oak wilt. Ecology 82:33-49.
4. Andersson, M., and J. Krebs (1978). On the evolution of hoarding behaviour. Animal Behaviour 26:707-711.
5. Augspurger, C. K., and C. K. Kelly (1984). Pathogen mortality of tropical tree seedlings: Experimental studies of the effects of dispersal distance, seedling density, and light conditions. Oecologia 61:211-217.
6. Balda, R. P., and G. C. Bateman (1971). Flocking and annual cycle of Piñon Jay, Gymnorhinus cyanocephalus. The Condor 73: 287-302.
7. Balda, R. P., and A. C. Kamil (1989). A comparative study of cache recovery by three corvid species. Animal Behaviour 38:486-495.
8. Balda, R. P., and A. C. Kamil (1992). Long-term spatial memory in Clark's Nutcracker, Nucifraga columbiana. Animal Behaviour 44:761-769.
9. Balda, R. P., and A. C. Kamil (1998). The ecology and evolution of spatial memory in corvids of the southwestern USA: The perplexing Pinyon Jay. In Animal Cognition in Nature: The Convergence of Psychology and Biology in Laboratory and Field (R. P. Balda, I. M. Pepperberg, and A. C. Kamil, Editors). Academic Press, San Diego, CA, USA. pp. 29-64.
10. Balda, R. P., and A. C. Kamil (2006). Linking life zones, life history traits, ecology, and spatial cognition in four allopatric southwestern seed caching corvids. In Animal Spatial Cognition: Comparative, Neural & Computational Approaches (M. F. Brown and R. G. Cook, Editors). Published by the authors in cooperation with Comparative Cognition Press. http://www.pigeon.psy.tufts.edu/asc/balda/
11. Balda, R. P., A. C. Kamil, P. A. Bednekoff, and A. G. Hile (1997). Species differences in spatial memory performance on a three-dimensional task. Ethology 103:47-55.
12. Barringer, L. E., D. F. Tomback, M. B. Wunder, and S. T. McKinney (2012). Whitebark pine stand condition, tree abundance, and cone production as predictors of visitation by Clark's Nutcracker. PLOS One 7:e37663.
13. Baumeister, D., and R. M. Callaway (2006). Facilitation by Pinus flexilis during succession: A hierarchy of mechanisms benefits other plant species. Ecology 87:1816-1830.
14. Beltran, R. S., N. Kreidler, D. H. Van Vuren, S. A. Morrison, E. S. Zavaleta, K. Newton, B. R. Tershy, and D. A. Croll (2014). Passive recovery of vegetation after herbivore eradication on Santa Cruz Island, California. Restoration Ecology 22:790-797.
15. Betancourt, J. L., W. S. Schuster, J. B. Mitton, and R. S. Anderson (1991). Fossil and genetic history of a pinyon pine (Pinus edulis) isolate. Ecology 72:1685-1697.
16. BirdLife International (2012). Bird Distribution Maps of the World. BirdLife International, Cambridge, UK.
17. Bock, W. J., R. P. Balda, and S. B. Vander Wall (1973). Morphology of the sublingual pouch and tongue musculature in Clark's Nutcrackers. The Auk 90:491-519.
18. Bohrer, G., R. Nathan, and S. Volis (2005). Effects of long-distance dispersal for metapopulation survival and genetic structure at ecological time and spatial scales. Journal of Ecology 93: 1029-1040.
19. Borchert, M. I., F. W. Davis, J. Michaelsen, and L. D. Oyler (1989). Interactions of factors affecting seedling recruitment of blue oak (Quercus douglasii) in California. Ecology 70:389-404.
20. Borchert, M. I., M. Johnson, D. S. Schreiner, and S. B. Vander Wall (2003). Early postfire seed dispersal, seedling establishment and seedling mortality of Pinus coulteri (D. Don) in central coastal California, USA. Plant Ecology 168:207-220.
21. Borchert, M. I., and C. M. Tyler. (2010). Acorn dispersal of California black oak after a stand-replacing fire. Fire Ecology 6:136-141.
22. Bossema, I. (1979). Jays and oaks: An eco-ethological study of a symbiosis. Behaviour 70:1-116.
23. Broncano, M. J., M. Riba, and J. Retana (1998). Seed germination and seedling performance of two Mediterranean tree species, holm oak (Quercus ilex L.) and Aleppo pine (Pinus halepensis Mill.): A multifactor experimental approach. Plant Ecology 138:17-26.
24. Brown, J. L. (1970). Cooperative breeding and altruistic behaviour in the Mexican Jay, Aphelocoma ultramarina. Animal Behaviour 18:366-378.
25. Bugnyar, T., and K. Kotrschal (2002). Scrounging tactics in freeranging ravens, Corvus corax. Ethology 108:993-1009.
26. Byers, J. E., K. Cuddington, C. G. Jones, T. S. Talley, A. Hastings, J. G. Lambrinos, J. A. Crooks, and W. G. Wilson (2006). Using ecosystem engineers to restore ecological systems. Trends in Ecology & Evolution 21:493-500.
27. Cain, M. L., B. G. Milligan, and A. E. Strand (2000). Long-distance seed dispersal in plant populations. American Journal of Botany 87:1217-1227.
28. Cairns, D. M., C. Lafon, J. Moen, and A. Young (2007). Influences of animal activity on treeline position and pattern: Implications for treeline responses to climate change. Physical Geography 28:419-433.
29. Callaway, R. M. (1998). Competition and facilitation on elevation gradients in subalpine forests of the northern Rocky Mountains, USA. Oikos 82:561-573.
30. Callaway, R. M., and C. M. D'Antonio (1991). Shrub facilitation of coast live oak establishment in central California. Madroño 38:151-169.
31. Campos, P., L. Huntsinger, J. L. Oviedo, P. F. Starrs, M. Díaz, R. B. Standiford, and G. Montero (Editors) (2013). Mediterranean Oak Woodland Working Landscapes: Dehesas of Spain and Ranchlands of California. Springer, New York, NY, USA.
32. Carmen, W. J. (2004). Behavioral ecology of the California Scrub-Jay (Aphelocoma californica): A non-cooperative breeder with close cooperative relatives. Studies in Avian Biology 28.
33. Caughlin, T. T., J. M. Ferguson, J. W. Lichstein, S. Bunyavejchewin, and D. J. Levey (2014). The importance of long-distance seed dispersal for the demography and distribution of a canopy tree species. Ecology 95:952-962.
34. Christensen, K. M., and T. G. Whitham (1991). Indirect herbivore mediation of avian seed dispersal in pinyon pine. Ecology 72: 534-542.
35. Christensen, K. M., and T. G. Whitham (1993). Impact of insect herbivores on competition between birds and mammals for pinyon pine seeds. Ecology 74:2270-2278.
36. Christensen, K. M., T. G. Whitham, and R. P. Balda (1991). Discrimination among pinyon pine trees by Clark's Nutcrackers: Effects of cone crop size and cone characters. Oecologia 86:402-407.
37. Coleman, T. W., and S. J. Seybold (2008). New pest in California: The goldspotted oak borer, Agrilus coxalis Waterhouse. U.S. Department of Agriculture, Forest Service, Pacific Southwest Region, State and Private Forestry. Pest Alert R5-RP-022.
38. Collins, P. W. (2009). Historic and prehistoric record for the occurrence of Island Scrub-Jays (Aphelocoma insularis) on the northern Channel Islands, Santa Barbara County, California. Technical Report 5. Santa Barbara Museum of Natural History, Santa Barbara, CA, USA.
39. Connell, J. H. (1971). On the role of natural enemies in preventing competitive exclusion in some marine animals and in rain forest trees. In Dynamics of Populations (P. J. Den Boer and G. Gradwell, Editors). PUDOC, Wageningen, The Netherlands. pp. 298-312.
40. Côrtes, M. C., and M. Uriarte (2013). Integrating frugivory and animal movement: A review of the evidence and implications for scaling seed dispersal. Biological Reviews 88:255-272.
41. Cousens, R. D., J. Hill, K. French, and I. D. Bishop (2010). Towards better prediction of seed dispersal by animals. Functional Ecology 24:1163-1170.
42. Crain, C. M., and M. D. Bertness (2006). Ecosystem engineering across environmental gradients: Implications for conservation and management. BioScience 56:211-218.
43. Critchfield, W. B., and E. L. Little, Jr. (1966). Geographic Distribution of the Pines of the World. USDA Forest Service Miscellaneous Publication 991.
44. Culliney, S., L. Pejchar, R. Switzer, and V. Ruiz-Gutierrez (2012). Seed dispersal by a captive corvid: The role of the 'Alal¯a (Corvus hawaiiensis) in shaping Hawai'i's plant communities. Ecological Applications 22:1718-1732.
45. Dahlgren, R. A., M. J. Singer, and X. Huang (1997). Oak tree and grazing impacts on soil properties and nutrients in a California oak woodland. Biogeochemistry 39:45-64.
46. Dahlin, K. M., G. P. Asner, and C. B. Field (2014). Linking vegetation patterns to environmental gradients and human impacts in a Mediterranean-type island ecosystem. Landscape Ecology 29:1571-1585.
47. Darley-Hill, S., and W. C. Johnson (1981). Acorn dispersal by the Blue Jay (Cyanocitta cristata). Oecologia 50:231-232.
48. Dawson, T. E. (1998). Fog in the California redwood forest: Ecosystem inputs and use by plants. Oecologia 117:476-485.
49. DeGange, A. R., J. W. Fitzpatrick, J. N. Layne, and G. E. Woolfenden (1989). Acorn harvesting by Florida Scrub-Jays. Ecology 70:348-356.
50. de Kort, S. R., and N. S. Clayton (2006). An evolutionary perspective on caching by corvids. Proceedings of the Royal Society of London, Series B 273:417-423.
51. de la Peña-Domene, M., C. Martínez-Garza, S. Palmas-Pérez, E. Rivas-Alonso, and H. F. Howe (2014). Roles of birds and bats in early tropical-forest restoration. PLOS One 9:e104656.
52. den Ouden, J., P. A. Jansen, and R. Smit (2005). Jays, mice and oaks: Predation and dispersal of Quercus robur and Q. petraea in north-western Europe. In Seed Fate: Predation, Dispersal and Seedling Establishment (P. M. Forget, J. E. Lambert, P. E. Hulme, and S. B. Vander Wall, Editors). CABI, Wallingford, UK. pp. 223-240.
53. Derbyshire, R., D. Strickland, and D. R. Norris (2015). Experimental evidence and 43 years of monitoring data show that food limits reproduction in a food-caching passerine. Ecology 96: 3005-3015.
54. Dixon, M. D., W. C. Johnson, and C. S. Adkisson (1997). Effects of weevil larvae an acorn use by Blue Jays. Oecologia 111:201-208.
55. Engler, R., and A. Guisan (2009). MIGCLIM: Predicting plant distribution and dispersal in a changing climate. Diversity and Distributions 15:590-601.
56. Espelta, J. M., R. Bonal, and B. Sańchez-Humanes (2009). Predispersal acorn predation in mixed oak forests: Interspecific differences are driven by the interplay among seed phenology, seed size and predator size. Journal of Ecology 97:1416-1423.
57. Fang, J. Y., Z. H. Wang, and Z. Y. Tang (2011). Atlas of Woody Plants in China: Distribution and Climate. Springer, Berlin, Germany.
58. Figuerola, J., A. J. Green, and L. Santamaría (2003). Passive internal transport of aquatic organisms by waterfowl in Doñana, south-west Spain. Global Ecology and Biogeography 12:427-436.
59. Fischer, D. T., C. J. Still, and A. P. Williams (2009). Significance of summer fog and overcast for drought stress and ecological functioning of coastal California endemic plant species. Journal of Biogeography 36:783-799.
60. Fleck, D. C., and D. F. Tomback (1996). Tannin and protein in the diet of a food-hoarding granivore, the Western Scrub-Jay. The Condor 98:474-482.
61. Fleck, D. C., and G. E. Woolfenden (1997). Can acorn tannin predict scrub-jay caching behavior? Journal of Chemical Ecology 23:793-806.
62. Forget, P.-M., and S. B. Vander Wall (2001). Scatter-hoarding rodents and marsupials: Convergent evolution on diverging continents. Trends in Ecology & Evolution 16:65-67.
63. Fuchs, M. A., P. G. Krannitz, and A. S. Harestad (2000). Dispersal of Garry oak acorns by Steller's Jays. In Proceedings of a Conference on the Biology and Management of Species and Habitats at Risk, Kamloops, BC, February 15-19, 1999 (I. M. Darling, Editor). British Columbia Ministry of Environment, Lands and Parks, Victoria, BC, Canada. pp. 263-266.
64. García, D., and D. Martínez (2012). Species richness matters for the quality of ecosystem services: A test using seed dispersal by frugivorous birds. Proceedings of the Royal Society of London, Series B 279:3106-3113.
65. Gómez, J. M. (2003). Spatial patterns in long-distance dispersal of Quercus ilex acorns by jays in a heterogeneous landscape. Ecography 26:573-584.
66. Gómez, J. M., C. Puerta-Piñero, and E. W. Schupp (2008). Effectiveness of rodents as local seed dispersers of holm oaks. Oecologia 155:529-537.
67. Goodwin, D. (1983). Crows of the World. Queensland University Press, St. Lucia, Queensland, Australia.
68. Greenberg, C. H., T. L. Keyser, S. J. Zarnoch, K. Connor, D. M. Simon, and G. S. Warburton (2012). Acorn viability following prescribed fire in upland hardwood forests. Forest Ecology and Management 275:79-86.
69. Grinnell, J. (1936). Up-hill planters. The Condor 38:80-82.
70. Hastings, A., J. E. Byers, J. A. Crooks, K. Cuddington, C. G. Jones, J. G. Lambrinos, T. S. Talley, and W. G. Wilson (2007). Ecosystem engineering in space and time. Ecology Letters 10:153-164.
71. Hayashida, M. (2003). Seed dispersal of Japanese stone pine by the Eurasian Nutcracker. Ornithological Science 2:33-40.
72. Heinrich, B. (2014). American chestnut seed dispersal and regeneration. Northeastern Naturalist 21:619-629.
73. Holtmeier, F.-K. (1966). Dieökologische Funktion des Tannenhähers im Zirben-Lärchenwald und an der Waldgrenze des Oberengadins. Journal für Ornithologie 107:337-345.
74. Hougner, C., J. Colding, and T. Söderqvist (2006). Economic valuation of a seed dispersal service in the Stockholm National Urban Park, Sweden. Ecological Economics 59:364-374.
75. Howe, H. F., and C. Martínez-Garza (2014). Restoration as experiment. Botanical Sciences 92:459-468
76. Howe, H. F., and J. Smallwood (1982). Ecology of seed dispersal. Annual Review of Ecology and Systematics 13:201-228.
77. Hubbard, J. A., and G. R. McPherson (1997). Acorn selection by Mexican Jays: A test of a tri-trophic symbiotic relationship hypothesis. Oecologia 110:143-146.
78. Hulme, P. E. (2002). Seed-eaters: Seed dispersal, destruction and demography. In Seed Dispersal and Frugivory: Ecology, Evolution and Conservation (D. J. Levey, W. R. Silva, and M. Galetti, Editors). CABI, Wallingford, UK. pp. 257-273.
79. Hutchins, H. E., S. A. Hutchins, and B. W. Liu (1996). The role of birds and mammals in Korean pine (Pinus koraiensis) regeneration dynamics. Oecologia 107:120-130.
80. Hutchins, H. E., and R. M. Lanner (1982). The central role of Clark's Nutcracker in the dispersal and establishment of whitebark pine. Oecologia 55:192-201.
81. IUCN (2012). The IUCN Red List of Threatened Species. Version 2012.2. http://iucnredlist.org
82. James, P. C., and N. A. M. Verbeek (1983). The food storage behaviour of the Northwestern Crow. Behaviour 85:276-290.
83. Jansen, P. A., F. Bongers, and L. Hemerik (2004). Seed mast and mast seedlings enhance dispersal by a Neotropical scatterhoarding rodent. Ecological Monographs 74:569-589.
84. Janzen, D. H. (1970). Herbivores and the number of tree species in tropical forests. The American Naturalist 104:501-528.
85. Johnson, P. S., S. R. Shifley, and R. Rogers (2009). The Ecology and Silviculture of Oaks, second edition. CABI, Wallingford, UK.
86. Johnson, W. C., and C. S. Adkisson (1985). Dispersal of beech nuts by Blue Jays in fragmented landscapes. American Midland Naturalist 113:319-324.
87. Johnson, W. C., C. S. Adkisson, T. R. Crow, and M. D. Dixon (1997). Nut caching by Blue Jays (Cyanocitta cristata L.): Implications for tree demography. American Midland Naturalist 138:357-370.
88. Johnson, W. C., and T. Webb III (1989). The role of Blue Jays (Cyanocitta cristata L.) in the postglacial dispersal of fagaceous trees in eastern North America. Journal of Biogeography 16:561-571.
89. Johst, K., R. Brandl, and S. Eber (2002). Metapopulation persistence in dynamic landscapes: The role of dispersal distance. Oikos 98:263-270.
90. Jordano, P. (2000). Fruits and frugivory. In Seeds: The Ecology of Regeneration in Plant Communities, second edition (M. Fenner, Editor). CABI, Wallingford, UK. pp. 125-165.
91. Kajimoto, T., H. Onodera, S. Ikeda, H. Daimaru, and T. Seki (1998). Seedling establishment of subalpine stone pine (Pinus pumila) by nutcracker (Nucifraga) seed dispersal on Mt. Yumori, northern Japan. Arctic and Alpine Research 30:408-417.
92. Keane, R. E., and R. A. Parsons (2010). Restoring whitebark pine forests of the northern Rocky Mountains, USA. Ecological Restoration 28:56-70.
93. Kelly, D., and V. L. Sork (2002). Mast seeding in perennial plants: Why, how, where? Annual Review of Ecology and Systematics 33:427-447.
94. Koenig, W. D., and L. S. Benedict (2002). Size, insect parasitism, and energetic value of acorns stored by Acorn Woodpeckers. The Condor 104:539-547.
95. Koenig, W. D., D. Kelly, V. L. Sork, R. P. Duncan, J. S. Elkinton, M. S. Peltonen, and R. D. Westfall (2003). Dissecting components of population-level variation in seed production and the evolution of masting behavior. Oikos 102:581-591.
96. Koenig, W. D., and J. M. H. Knops (2000). Patterns of annual seed production by Northern Hemisphere trees: A global perspective. The American Naturalist 155:59-69.
97. Koenig, W. D., and J. M. H. Knops (2013). Large-scale spatial synchrony and cross-synchrony in acorn production by two California oaks. Ecology 94:83-93.
98. Koenig, W. D., A. H. Krakauer, W. B. Monahan, J. Haydock, J. M. H. Knops, and W. J. Carmen (2009). Mast-producing trees and the geographical ecology of Western Scrub-Jays. Ecography 32:561-570.
99. Kollmann, J., and H. P. Schill (1996). Spatial patterns of dispersal, seed predation and germination during colonization of abandoned grassland by Quercus petraea and Corylus avellana. Vegetatio 125:193-205.
100. Krebs, G. (1889). Humboldt Monatsschrift für die Gesamten Naturwissenschaften. [Reprint: Forgotten Books, London, UK, 2013.]
101. Kurz, W. A., C. C. Dymond, G. Stinson, G. J. Rampley, E. T. Neilson, A. L. Carroll, T. Ebata, and L. Safranyik (2008). Mountain pine beetle and forest carbon feedback to climate change. Nature 452:987-990.
102. Langen, T. A. (1999). How Western Scrub-Jays (Aphelocoma californica) select a nut: Effects of the number of options, variation in nut size, and social competition among foragers. Animal Cognition 2:223-233.
103. Langen, T. A., and R. M. Gibson (1998). Sampling and information acquisition by Western Scrub-Jays, Aphelocoma californica. Animal Behaviour 55:1245-1254.
104. Lankau, R., P. S. Jørgensen, D. J. Harris, and A. Sih (2011). Incorporating evolutionary principles into environmental management and policy. Evolutionary Applications 4:315-325.
105. Lanner, R. M. (1982). Adaptations of whitebark pine for seed dispersal by Clark's Nutcracker. Canadian Journal of Forest Research 12:391-402.
106. Leiva, M. J., J. M. Mancilla-Leyton, and Á. Martín-Vicente (2013). Methods to improve the recruitment of holm-oak seedlings in grazed Mediterranean savanna-like ecosystems (dehesas). Annals of Forest Science 70:11-20.
107. Lenda, M., P. Skórka, J. M. H. Knops, D. Moroń, S. Tworek, and M. Woyciechowski (2012). Plant establishment and invasions: An increase in a seed disperser combined with land abandonment causes an invasion of the non-native walnut in Europe. Proceedings of the Royal Society of London, Series B 279: 1491-1497.
108. Lenz, J., W. Fiedler, T. Caprano, W. Friedrichs, B. H. Gaese, M. Wikelski, and K. Böhning-Gaese (2011). Seed-dispersal distributions by Trumpeter Hornbills in fragmented landscapes. Proceedings of the Royal Society of London, Series B 278: 2257-2264.
109. Lesser, M. R., and S. T. Jackson (2013). Contributions of longdistance dispersal to population growth in colonising Pinus ponderosa populations. Ecology Letters 16:380-389.
110. Li, H., and Z. Zhang (2007). Effects of mast seeding and rodent abundance on seed predation and dispersal by rodents in Prunus armeniaca (Rosaceae). Forest Ecology and Management 242:511-517.
111. Li, X. D., and S. D. Wilson (1998). Facilitation among woody plants establishing in an old field. Ecology 79:2694-2705.
112. Lichti, N. I., M. A. Steele, H. Zhang, and R. K. Swihart (2014). Mast species composition alters seed fate in North American rodent-dispersed hardwoods. Ecology 95:1746-1758.
113. Liebhold, A., W. D. Koenig, and O. N. Bjørnstad (2004). Spatial synchrony in population dynamics. Annual Review of Ecology, Evolution, and Systematics 35:467-490.
114. Ligon, J. D. (1978). Reproductive interdependence of Piñon Jays and piñon pines. Ecological Monographs 48:111-126.
115. Logan, W. B. (2005). Oak: The Framework of Civilization. W.W. Norton, New York, NY, USA.
116. Lorenz, T. J., C. A. Aubry, and R. Shoal (2008). A review of the literature on seed fate in whitebark pine and the life history traits of Clark's Nutcracker and pine squirrels. USDA Forest Service General Technical Report PNW-GTR-742.
117. Lorenz, T. J., and K. A. Sullivan (2009). Seasonal differences in space use by Clark's Nutcrackers in the Cascade range. The Condor 111:326-340.
118. Lorenz, T. J., K. A. Sullivan, A. V. Bakian, and C. A. Aubry (2011). Cache-site selection in Clark's Nutcracker (Nucifraga columbiana). The Auk 128:237-247.
119. MacDougall, A. S. (2008). Herbivory, hunting, and long-term vegetation change in degraded savanna. Biological Conservation 141:2174-2183.
120. MacDougall, A.S., A. Duwyn, and N. T. Jones (2010). Consumerbased limitations drive oak recruitment failure. Ecology 91: 2092-2099.
121. Madden, C. F., B. Arroyo, and A. Amar (2015). A review of the impacts of corvids on bird productivity and abundance. Ibis 157:1-16.
122. Madge, S., and H. Burn (1994). Crows and Jays. Princeton University Press, Princeton, NJ, USA.
123. Marzluff, J. M., and R. P. Balda (1992). The Pinyon Jay: Behavioral Ecology of a Colonial and Cooperative Corvid. T. and A.D. Poyser, London, UK.
124. McConkey, K. R., S. Prasad, R. T. Corlett, A. Campos-Arceiz, J. F. Brodie, H. Rogers, and L. Santamaria (2012). Seed dispersal in changing landscapes. Biological Conservation 146:1-13.
125. McKenney, D. W., J. H. Pedlar, K. Lawrence, K. Campbell, and M. F. Hutchinson (2007). Potential impacts of climate change on the distribution of North American trees. BioScience 57:939-948.
126. McKinney, S. T., C. E. Fiedler, and D. F. Tomback (2009). Invasive pathogen threatens bird-pine mutualism: Implications for sustaining a high-elevation ecosystem. Ecological Applications 19:597-607.
127. McKinney, S. T., and D. F. Tomback (2007). The influence of white pine blister rust on seed dispersal in whitebark pine. Canadian Journal of Forest Research 37:1044-1057.
128. McShea, W. J., and W. M. Healy (Editors) (2003). Oak Forest Ecosystems: Ecology and Management for Wildlife. Johns Hopkins University Press, Baltimore, MD, USA.
129. Mendoza, I., R. Zamora, and J. Castro (2009). A seeding experiment for testing tree-community recruitment under variable environments: Implications for forest regeneration and conservation in Mediterranean habitats. Biological Conservation 142:1491-1499.
130. Montoya, D., M. A. Zavala, M. A. Rodríguez, and D. W. Purves (2008). Animal versus wind dispersal and the robustness of tree species to deforestation. Science 320:1502-1504.
131. Montoya, J. M., and D. Raffaelli (2010). Climate change, biotic interactions and ecosystem services. Philosophical Transactions of the Royal Society of London, Series B 365:2013-2018.
132. Moore, J. E., and R. K. Swihart (2006). Nut selection by captive Blue Jays: Importance of availability and implications for seed dispersal. The Condor 108:377-388.
133. Morań-López, T., C. L. Alonso, and M. Díaz (2015a). Landscape effects on jay foraging behavior decrease acorn dispersal services in dehesas. Acta Oecologica 69:52-64
134. Morań-López, T., M. Fernańdez, C. L. Alonso, D. Flores-Rentería, F. Valladares, and M. Díaz (2015b). Effects of forest fragmentation on the oak-rodent mutualism. Oikos 124:1482-1491.
135. Morrison, S. A. (2011). Trophic considerations in eradicating multiple pests. In Island Invasives: Eradication and Management (C. R. Veitch, M. N. Clout, and D. R. Towns, Editors). IUCN SSC Invasive Species Specialist Group. IUCN, Gland, Switzerland. pp. 208-212.
136. Morrison, S. A., T. S. Sillett, C. K. Ghalambor, J. W. Fitzpatrick, D. M. Graber, V. J. Bakker, R. Bowman, C. T. Collins, P. W. Collins, K. Semple Delaney, D. F. Doak, et al. (2011). Proactive conservation management of an island-endemic bird species in the face of global change. BioScience 61:1013-1021.
137. Mosandl, R., and A. Kleinert (1998). Development of oaks (Quercus petraea (Matt.) Liebl.) emerged from bird-dispersed seeds under old-growth pine (Pinus silvestris L.) stands. Forest Ecology and Management 106:35-44.
138. Nathan, R. (2006). Long-distance dispersal of plants. Science 313: 786-788.
139. Nathan, R., and H. C. Muller-Landau (2000). Spatial patterns of seed dispersal, their determinants and consequences for recruitment. Trends in Ecology & Evolution 15:278-285.
140. Nathan, R., F. M. Schurr, O. Spiegel, O. Steinitz, A. Trakhtenbrot, and A. Tsoar (2008). Mechanisms of long-distance seed dispersal. Trends in Ecology & Evolution 23:638-647.
141. Neilan, W., C. P. Catterall, J. Kanowski, and S. McKenna (2006). Do frugivorous birds assist rainforest succession in weed dominated oldfield regrowth of subtropical Australia? Biological Conservation 129:393-407.
142. Neuschulz, E. L., T. Mueller, K. Bollmann, F. Gugerli, and K. Böhning-Gaese (2015). Seed perishability determines the caching behaviour of a food-hoarding bird. Journal of Animal Ecology 84:71-78.
143. Odion, D. C., and C. T. Hanson (2006). Fire severity in conifer forests of the Sierra Nevada, California. Ecosystems 9:1177-1189.
144. Ostfeld, R. S., and F. Keesing (2000). Pulsed resources and community dynamics of consumers in terrestrial ecosystems. Trends in Ecology & Evolution 15:232-237.
145. Parmesan, C. (2006). Ecological and evolutionary responses to recent climate change. Annual Review of Ecology, Evolution, and Systematics 37:637-669.
146. Pase, C. P. (1969). Survival of Quercus turbinella and Q. emoryi seedlings in an Arizona chaparral community. Southwestern Naturalist 14:149-155.
147. Pausas, J. G., C. Bladé, A. Valdecantos, J. P. Seva, D. Fuentes, J. A. Alloza, A. Vilagrosa, S. Bautista, J. Cortina, and R. Vallejo (2004). Pines and oaks in the restoration of Mediterranean landscapes of Spain: New perspectives for an old practice-a review. Plant Ecology 171:209-220.
148. Perea, R., D. López, A. San Miguel, and L. Gil (2012). Incorporating insect infestation into rodent seed dispersal: Better if the larva is still inside. Oecologia 170:723-733.
149. Perea, R., A. San Miguel, and L. Gil (2011). Flying vs. climbing: Factors controlling arboreal seed removal in oak-beech forests. Forest Ecology and Management 262:1251-1257.
150. Pérez-Ramos, I. M., J. R. Verdú, C. Numa, T. Marañón, and J. M. Lobo (2013). The comparative effectiveness of rodents and dung beetles as local seed dispersers in Mediterranean oak forests. PLOS One 8:e77197.
151. Pesendorfer, M. B. (2014). Scatter-hoarding of acorns by Island Scrub-Jays. Ph.D. dissertation, University of Nebraska, Lincoln, NE, USA.
152. Peterson, A. T. (1993). Adaptive geographical variation in bill shape of scrub jays (Aphelocoma coerulescens). The American Naturalist 142:508-527.
153. Pitelka, F. A. (1951). Speciation and ecologic distribution in American jays of the genus Aphelocoma. University of California Publications in Zoology 50:195-464.
154. Pons, J., and J. G. Pausas (2007a). Acorn dispersal estimated by radio-tracking. Oecologia 153:903-911.
155. Pons, J., and J. G. Pausas (2007b). Not only size matters: Acorn selection by the European Jay (Garrulus glandarius). Acta Oecologica 31:353-360.
156. Pons, J., and J. G. Pausas (2008). Modelling jay (Garrulus glandarius) abundance and distribution for oak regeneration assessment in Mediterranean landscapes. Forest Ecology and Management 256:578-584.
157. Purves, D. W., M. A. Zavala, K. Ogle, F. Prieto, and J. M. Rey Benayas (2007). Environmental heterogeneity, bird-mediated directed dispersal, and oak woodland dynamics in Mediterranean Spain. Ecological Monographs 77:77-97.
158. Quideau, S. A., O. A. Chadwick, A. Benesi, R. C. Graham, and M. A. Anderson (2001). A direct link between forest vegetation type and soil organic matter composition. Geoderma 104:41-60.
159. Quideau, S. A., R. C. Graham, O. A. Chadwick, and H. B. Wood (1998). Organic carbon sequestration under chaparral and pine after four decades of soil development. Geoderma 83: 227-242.
160. Resler, L. M., and D. F. Tomback (2008). Blister rust prevalence in krummholz whitebark pine: Implications for treeline dynamics, northern Rocky Mountains, Montana, U.S.A. Arctic, Antarctic, and Alpine Research 40:161-170.
161. Rey Benayas, J. M., and J. M. Bullock (2012). Restoration of biodiversity and ecosystem services on agricultural land. Ecosystems 15:883-899.
162. Rey Benayas, J. M., J. M. Bullock, and A. C. Newton (2008). Creating woodland islets to reconcile ecological restoration, conservation, and agricultural land use. Frontiers in Ecology and the Environment 6:329-336.
163. Richardson, B. A., S. J. Brunsfeld, and N. B. Klopfenstein (2002). DNA from bird-dispersed seed and wind-disseminated pollen provides insights into postglacial colonization and population genetic structure of whitebark pine (Pinus albicaulis). Molecular Ecology 11:215-227.
164. Rizzo, D. M., and M. Garbelotto (2003). Sudden oak death: Endangering California and Oregon forest ecosystems. Frontiers in Ecology and the Environment 1:197-204.
165. Robinson, G. R., and S. N. Handel (1993). Forest restoration on a closed landfill: Rapid addition of new species by bird dispersal. Conservation Biology 7:271-278.
166. Robinson, G. R., and S. N. Handel (2000). Directing spatial patterns of recruitment during an experimental urban woodland reclamation. Ecological Applications 10:174-188.
167. Rodríguez-Pérez, J., T. Wiegand, and L. Santamaria (2012). Frugivore behaviour determines plant distribution: A spatially-explicit analysis of a plant-disperser interaction. Ecography 35:113-123.
168. Russo, S. E. (2005). Linking seed fate to natural dispersal patterns: Factors affecting predation and scatter-hoarding of Virola calophylla seeds in Peru. Journal of Tropical Ecology 21:243-253.
169. Russo, S. E., S. Portnoy, and C. K. Augspurger (2006). Incorporating animal behavior into seed dispersal models: Implications for seed shadows. Ecology 87:3160-3174.
170. Scarlett, T. L., and K. G. Smith (1991). Acorn preference of urban Blue Jays (Cyanocitta cristata) during fall and spring in northwestern Arkansas. The Condor 93:438-442.
171. Schoettle, A. W., and R. A. Sniezko (2007). Proactive intervention to sustain high-elevation pine ecosystems threatened by white pine blister rust. Journal of Forest Research 12:327-336.
172. Schupp, E. W. (1993). Quantity, quality and the effectiveness of seed dispersal by animals. Vegetatio 107-108:15-29.
173. Schupp, E. W., P. Jordano, and J. M. Gómez (2010). Seed dispersal effectiveness revisited: A conceptual review. New Phytologist 188:333-353.
174. Scott, G. L., and W. W. McCaughey (2006). Whitebark pine guidelines for planting prescriptions. In National Proceedings: Forest and Conservation Nursery Associations (L. E. Riley, R. K. Dumroese, and T. D. Landis, Editors). USDA Forest Service Rocky Mountain Research Station, Ogden, UT, USA. pp. 84-90.
175. Sxekercioʇlu, Ç. H., G. C. Daily, and P. R. Ehrlich (2004). Ecosystem consequences of bird declines. Proceedings of the National Academy of Sciences USA 101:18042-18047.
176. Siepielski, A. M., and C. W. Benkman (2007). Selection by a predispersal seed predator constrains the evolution of avian seed dispersal in pines. Functional Ecology 21:611-618.
177. Siepielski, A. M., and C. W. Benkman (2008). A seed predator drives the evolution of a seed dispersal mutualism. Proceedings of the Royal Society of London, Series B 275:1917-1925.
178. Sillett, T. S., R. B. Chandler, J. A. Royle, M. Kéry, and S. A. Morrison (2012). Hierarchical distance-sampling models to estimate population size and habitat-specific abundance of an island endemic. Ecological Applications 22:1997-2006.
179. Smit, C., J. den Ouden, and M. Díaz (2008). Facilitation of Quercus ilex recruitment by shrubs in Mediterranean open woodlands. Journal of Vegetation Science 19:193-200.
180. Spiegel, O., and R. Nathan (2007). Incorporating dispersal distance into the disperser effectiveness framework: Frugivorous birds provide complementary dispersal to plants in a patchy environment. Ecology Letters 10:718-728.
181. Steele, M. A., L. Z. Hadj-Chikh, and J. Hazeltine (1996). Caching and feeding decisions by Sciurus carolinensis: Responses to weevil-infested acorns. Journal of Mammalogy 77:305-314.
182. Steele, M. A., G. Turner, P. D. Smallwood, J. O. Wolff, and J. Radillo (2001). Cache management by small mammals: Experimental evidence for the significance of acorn-embryo excision. Journal of Mammalogy 82:35-42.
183. Stimm, B., and K. Bóswald (1994). Die Háher im Visier. Zur ókologie und waldbaulichen Bedeutung der Samenausbreitung durch Vógel. Forstwirtschaft 113:204-223.
184. Stimm, B., and T. Knoke (2004). Háhersaaten: Ein Literatur úberblick zu waldbaulichen und ókonomischen Aspekten. Forst und Holz 59:531-534.
185. Stotz, N. G., and R. P. Balda (1995). Cache and recovery behavior of wild Pinyon Jays in northern Arizona. Southwestern Naturalist 40:180-184.
186. Thayer, T. C., and S. B. Vander Wall (2005). Interactions between Steller's Jays and yellow pine chipmunks over scatterhoarded sugar pine seeds. Journal of Animal Ecology 74: 365-374.
187. Thomas, F. M., R. Blank, and G. Hartmann (2002). Abiotic and biotic factors and their interactions as causes of oak decline in Central Europe. Forest Pathology 32:277-307.
188. Thuiller, W., S. Lavorel, and M. B. Araújo (2005). Niche properties and geographical extent as predictors of species sensitivity to climate change. Global Ecology and Biogeography 14:347-357.
189. Tomback, D. F. (1978). Pre-roosting flight of Clark's Nutcracker. The Auk 95:554-562.
190. Tomback, D. F. (1982). Dispersal of whitebark pine seeds by Clark's Nutcracker: A mutualism hypothesis. Journal of Animal Ecology 51:451-467.
191. Tomback, D. F. (2005). The impact of seed dispersal by Clark's Nutcracker on whitebark pine: Multi-scale perspective on a high mountain mutualism. In Mountain Ecosystems: Studies in Treeline Ecology (G. Broll and B. Keplin, Editors). Springer, Berlin, Germany. pp. 181-201.
192. Tomback, D. F. (2016) Seed dispersal by corvids: Birds that build forests. In Why Do Birds Matter? Birds' Ecological Functions and Ecosystem Services (C. H. Sekercioglu, D. G. Wenny, and C. J. Whelan, Editors). University of Chicago Press, Chicago, IL, USA. In press.
193. Tomback, D. F., and P. Achuff (2010). Blister rust and western forest biodiversity: Ecology, values and outlook for white pines. Forest Pathology 40:186-225.
194. Tomback, D. F., A. J. Anderies, K. S. Carsey, M. L. Powell, and S. Mellmann-Brown (2001). Delayed seed germination in whitebark pine and regeneration patterns following the Yellowstone fires. Ecology 82:2587-2600.
195. Tomback, D. F., F. K. Holtmeier, H. Mattes, K. S. Carsey, and M. L. Powell (1993). Tree clusters and growth form distribution in Pinus cembra, a bird-dispersed pine. Arctic and Alpine Research 25:374-381.
196. Tomback, D. F., and Y. B. Linhart (1990). The evolution of birddispersed pines. Evolutionary Ecology 4:185-219.
197. Trakhtenbrot, A., R. Nathan, G. Perry, and D. M. Richardson (2005). The importance of long-distance dispersal in biodiversity conservation. Diversity and Distributions 11:173-181.
198. Vander Wall, S. B. (1988). Foraging of Clark's Nutcrackers on rapidly changing pine seed resources. The Condor 90:621-631.
199. Vander Wall, S. B. (1990). Food Hoarding in Animals. University of Chicago Press, Chicago, IL, USA.
200. Vander Wall, S. B. (2002). Masting in animal-dispersed pines facilitates seed dispersal. Ecology 83:3508-3516.
201. Vander Wall, S. B. (2010). How plants manipulate the scatterhoarding behaviour of seed-dispersing animals. Philosophical Transactions of the Royal Society of London, Series B 365: 989-997.
202. Vander Wall, S. B., and R. P. Balda (1977). Coadaptations of the Clark's Nutcracker and the piñon pine for efficient seed harvest and dispersal. Ecological Monographs 47:89-111.
203. Vander Wall, S. B., and R. P. Balda (1981). Ecology and evolution of food-storage behavior in conifer-seed-caching corvids. Zeitschrift für Tierpsychologie 56:217-242.
204. Vander Wall, S. B., and M. J. Beck (2012). A comparison of frugivory and scatter-hoarding seed-dispersal syndromes. Botanical Review 78:10-31.
205. Vander Wall, S. B., and W. S. Longland (2004). Diplochory: Are two seed dispersers better than one? Trends in Ecology & Evolution 19:155-161.
206. Van Vuren, D., and B. E. Coblentz (1987). Some ecological effects of feral sheep on Santa Cruz Island, California, USA. Biological Conservation 41:253-268.
207. Waite, T. A. (1988). A field test of density-dependent survival of simulated Gray Jay caches. The Condor 90:247-249.
208. Waite, T. A., and J. D. Reeve (1992). Caching behaviour in the Gray Jay and the source-departure decision for ratemaximizing scatterhoarders. Behaviour 120:51-68.
209. Walther, G.-R. (2010). Community and ecosystem responses to recent climate change. Philosophical Transactions of the Royal Society of London, Series B 365:2019-2024.
210. Wang, H. B., Z. Zhang, X. B. Kong, S. C. Lui, and Z. R. Shen (2007). Preliminary deduction of potential distribution and alternative hosts of invasive pest, Dendroctonus valens (Coleoptera: Scolytidae). Scientia Silvae Sinicae 43:71-76.
211. Wenny, D. G. (2001). Advantages of seed dispersal: A reevaluation of directed dispersal. Evolutionary Ecology Research 3:51-74.
212. Wenny, D. G., T. L. DeVault, M. D. Johnson, D. Kelly, C. H. Sekercioglu, D. F. Tomback, and C. J. Whelan (2011). The need to quantify ecosystem services provided by birds. The Auk 128:1-14.
213. Wenny, D. G., and D. J. Levey (1998). Directed seed dispersal by bellbirds in a tropical cloud forest. Proceedings of the National Academy of Sciences USA 95:6204-6207.
214. Westcott, D. A., and D. L. Graham (2000). Patterns of movement and seed dispersal of a tropical frugivore. Oecologia 122:249-257.
215. Whelan, C. J., D. G. Wenny, and R. J. Marquis (2008). Ecosystem services provided by birds. Annals of the New York Academy of Sciences 1134:25-60.
216. Will, H., and O. Tackenberg (2008). A mechanistic simulation model of seed dispersal by animals. Journal of Ecology 96: 1011-1022.