Abstract
Fallow utilization schemes are becoming increasingly popular in agroforestry designs. However little attention has been given to the fate of valuable fallow plants after the end of the initial fallow cycle, and over successive fallow cycles on a regional or inter-fallow level. Evidence is presented here for the spontaneous long-term community enrichment of an area with valuable plants in a cyclic or iterative fashion, in the context of an existing fallow utilization scheme in the Amazon. Review of the ecological processes which operate at microsite, field and community levels indicate that:
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a.
Due to valuable plants left uncut in the swidden, seeds from valuable species are better able to survive the burn, and may experience a favored germination and establishment because of reduced competition, enhanced fertility of the young swidden, nutrient input from litterfall, and reduced soil temperatures and soil moisture evaporation.
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b.
The much greater frequency of suitable germination and establishment sites in and around canopy gaps created by management practices during the fallow cycle interacts with a spatial and temporal distribution of fruit trees which may encourage a specific optimal foraging strategy among large numbers of frugivores. The net effect of this interaction would be to decrease competition for, and increase efficiency of, seed dispersal into the large number of available establishment sites.
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c.
A greater opportunity for frugivore generated seed shadows exist in managed fallows due to the larger number of trails in and around these sites, which are used as flyways.
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d.
A presence of the more efficient ‘specialist’ fruit tree seed dispersal strategy in managed fallows — as opposed to the ‘opportunist’ strategy — which produces patterns of seed dispersal more beneficial to the plant, and may have a longer more evenly spread fruiting season; which, along with relatively large numbers of trees would encourage frugivores to ‘camp out’ on the resource, depositing seeds nearby.
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e.
The existence of ‘relict’ plant species that reflect pre-historic forest management which has led to long term and persistent effects on forest tree species composition.
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References
Alcorn J (1981) Huastec noncrop resource management: implications for prehistoric rain forest management. Human Ecology 9: 395–417
Arnaud E and Alves A (1974) A extinçao dos indios Kararao (Kayapó) baixo xingu Pará. Boletim de Museu 53: 1–19 189–196
Augspurger CK (1983) Offspring recruitment around tropical trees: changes in cohort distance with time. Oikos 40: 189–196
Augspurger CK (1984) Light requirements of neotropical tree seedlings: a comparative study of growth and survival. Journal of Ecology 72: 777–795
Barrera A, Gómez-Pompa A and Vásquez-Yanes C (1977) El manejo de las selvas por los Mayas: Sus Implicaciones silvicolas y agricolas. Biotica 2: 47–51
Barrera A, Barrera V and Lopez FRM (1976) Nomenclatura etnobotanica Maya. Instituto Naturaleza y Antropologia Historica
Bartholomew WV, Meyer J and Laudelout H (1953) Mineral nutrient immobilization under forest and grass fallow in the Yangambi (Belgian Congo) region. Publications de L'Institut National pour l'Etude Agronomique au Congo Belge, Série Scientifique, No 57, Brussels
Basso EB (1973) The Kalapalo indians of central Brazil. Hold, Rinehart, and Winston, New York
Bazzaz FA and Pickett STA (1980) Physiological ecology of tropical succession: a comparative review. Annual Review of Ecological Systems 11: 287–310
Beehler B (1983) Frugivory and polygamy in birds of paradise. Auk 100: 1–12
Bell CR (1970) Seed distribution and germination experiment. In HT Odum and RF Pigeon (Eds). A tropical rain forest, pp 177–182. Division of Technical Information, Oak Ridge Tennessee. U.S. Atomic Energy Commission
Brinkmann WLF and Vieira AN (1971) The effect of burning on germination of seeds at different soil depths of various tropical tree species. Turrialba 22: 77–82
Brokaw NVL (1980) Gap-phase regeneration in a neotropical forest. Ph.D. Dissertation, University of Chicago, Chicago, Illinois
Chapin FS and Kedrowski RA (1983) Seasonal changes in nitrogen and phosphorus fraction and autumn retranslocation in evergreen and decidous taiga trees. Ecology 64: 376–391
Cheke AS, Nankorn W and Yankoses C (1979) Dormancy and dispersal of seeds of secondary forests species under the canopy of a primary tropical rain forest in northern Thailand. Biotropica 11: 88–95
Cook OF (1909) Vegetation affected by agriculture in Central America. Bur. Plant Industry Bulletin 145, Washington, DC, USDA
Cousens JE (1965) Some reflections on the nature of Malayan lowland rainforest. Malay Forester 28: 122–128
Denevan W (1976) The aboriginal population of Amazonia. In: WM Denevan (Ed), The Native population of the Americas in 1942. University of Wisconsin Press, Madison pp 205–234
Denevan W (1984) Ecological heterogeneity and horizontal zonation of agriculture in the Amazon floodplain, In: Frontier Expansion in Amazonia. M Schmink and C Wood (eds) pp 311–336. University of Florida Press, Gainesville
Denevan W, Treacy J, Alcorn J, Padoch C, Denslow J and Paitan SF (1984) Indigenous Agroforestry in the Peruvian Amazon: Bora Indian Management of Swidden Fallows. Interciencia 9: 346–357
Denevan W and Padoch C (editors) (1987) Swidden-fallow agroforestry in the Peruvian Amazon. Advances in Economic Botany, New York Botanical Garden, New York
Denslow J (1980) Gap partitioning among tropical rainforest trees. Biotropica 12: 47–55 (Supplement, Tropical Succession)
Eden MJ (1980) A traditional agro-system in the Amazon region of Colombia. In: JI Furtado (ed), Tropical Ecology and Development (Kuala Lumpur, International Society of Tropical Ecology) 1: 509–514
Edmisten J (1970) Some autecological studies ofOrmosia krugii. In: HT Odum and RF Pigeon (eds). A Tropical Rain Forest Ch 8–17, US Atomic Energy Commission, Oak Ridge, Tenn
Ewel J (1971) Biomass changes in early tropical succession. Turrialba 21: 110–112
Ewel J, Berish C, Brown B, Price N and Raich J (1981) Slash and burn impacts on a Costa Rican wet forest site. Ecology 62: 816–829
Fleming TH, Heithaus ER and Sawyer WB (1977) An experimental analysis of the food location behavior of frugivorous bats. Ecology 58: 619–627
Fleming TH and Heithaus ER (1981) Frugivorous bats, seed shallows, and the structure of tropical forests. Biotropica: Reproductive Botany 13: 45–53
Fleming TH (1981) Fecundity, fruiting pattern and seed dispersal inPiper amalgo (Piperaceae), a bat-dispersed tropical shrub. Oecologia 51: 42–46
Folan WJ, Fletcher LA and Kintz ER (1979) Fruit, fiber, bark, and resin: social organization of a Maya urban center. Science 204: 697–701
Foster RB (1982) The seasonal rhythm of fruitfall of Barro Colorado Island. In: EG Leigh, AS Rand, DM Windsor (Eds). The Ecology of a Tropical Forest: Seasonal Rhythms and Long-Term Changes. Smithsonian Institution Press, Washington, DC
Frankie GW, Baker HG and Opler PA (1974) Comparative phenological studies of trees in tropical wet dry forests in the lowlands of Costa Rica. Journal of Ecology 62: 881–919
Garwood NC (1982) Seasonal rhythm of seed germination in a semideciduous tropical forest. In: EG Leigh, AS Rand, DM Windsor (Eds). The Ecology of a Tropical Forest: Seasonal Rhythms and Long-Term Changes. Smithsonian Institution Press, Washington, DC
Gliessman SR (1981) The ecological basis for the application of traditional agricultural technology in the management of tropical agro-ecosystems. Agroecosystems 7: 173–185
Gomez-Pompa A (1971) Posible papel de la vegetacion secundaria en la evolucion de la flora tropical. Biotropica 3: 125–135
Gomez-Pompa A and Vazquez-Yanes C (1974) Studies on the secondary succession of tropical lowlands: the life cycle of secondary species. Proc First Int Congress of Ecology. The Hague pp 336–342
Gordon BL (1969) Anthropogeography and rainforest ecology in Bocas del Toro Province, Panama. Office of Naval Research Report, Contract 3656CO-3 NR388 067 University of California-Berkeley
Gordon BL (1982) A Panama forest and shore: natural history and Amerindian culture in Bocas del Toro. Boxwood Press, Pacific Grove
Guevara S and Gomez-Pompa A (1972) Seed from surface soils in a tropical region of Veracruz, Mexico. Journal of the Arnold Arboretum 53: 312–335
Haines B (1975) Impact of leaf cutting ants on vegetation development at Barro Colorado island. In: Golly FB and E Medina (Eds). Tropical Ecology: Trends in Terrestrial and Aquatic Research. pp 99–111, Springer
Halle F, Oldeman RAA and Tomlinson PB (1978) Tropical trees and forests: an architectural analysis. Springer-Verlag, New York
Hamilton JW III and Watt KEF (1970) Refuging. Annual Review of Ecology and Systematics 1: 263–286
Harcomb PA (1980) Soil nutrient loss as a factor in early tropical secondary succession. Biotropica 12: 8–15
Harlan JR (1975) Crops and Man. American Society of Agronomy, Madison Wisconsin
Harris DR (1971) The ecology of swidden cultivation in the Upper Orinoco rain forest, Venezuela. The Geographical Review 61: 475–495
Hart RD (1980) A natural ecosystem analog approach to the design of a successional crop system for tropical forest environments. Biotropica 12: 73–83 (Supplement, Tropical Succession)
Hartshorn GS (1978) Treefalls and tropical forest dynamics. In: PB Tomlinson and MJ Zimmerman Eds. Tropical Trees as Living Systems, Cambridge University Press, London pp 617–143
Heithaus ER and Fleming TH (1978) Foraging movements of a frugivorous bat,Carollia perspicillata (Phyllostomatidae). Ecological Monographs 48: 127–143
Herrera R, Jordan CF, Klinge H and Medina E (1978) Amazon Ecosystems, their structure and function with particular emphasis on nutrients. Interciencia 3: 223–230
Hiraoka M (1985) Mestizo subsistence in riparian Amazonia. National Geograph Research 1: 236–246
Hiraoka M. Mestizo farming systems in northeast Peru. Unpublished manuscript
Horowitz MM (1986) The Case for Keeping the Third World to Scale. The New York Times, November 19
Howe HF and Estabrook GF (1977) On intraspecific competition for avian dispersers in tropical trees. American Naturalist 111: 817–832
Howe HF (1982) Fruit production and animal activity in two tropical trees. In: The Ecology of a Tropical Forest: Seasonal Rhythms and Long-Term Changes, EG Leigh Jr, AS Rand and DM Windsor (Eds). Smithsonian Institution Press, Washington DC pp 173–185
Howe HF (1977) Bird activity and seed dispersal of a tropical wet forest tree. Ecology 58: 539–550
Howe HF and Primack RB (1975) Differential seed dispersal by birds of the treeCasearia nitida (Flacourtiaceae). Biotropica 7: 278–283
Jackson JF (1981) Seed size as a correlate of temporal and spatial patterns of seed fall in a neotropical forest. Biotropica 13: 121–130
Janzen DH (1973) Tropical agroecosystems. Science 182: 1212–1219
Janzen DH, Miller GA, Jones JH, Pond CM, Hooper K and Janos DD (1976) Two Costa Rican bat-generated seed shadows ofAndira inermis (Leguminosae). Ecology 57: 501–528
Janzen DH (1970) Herbivores and the number of tree species in tropical forests. American Naturalist 104: 501–528
Janzen DH (1978a) The size of a local peak in a seed shadow. Biotropica 10: 78
Janzen DH (1978b) A bat generated seed shadow in rainforest. Biotropica 10: 121
Johns DA (1988) Effects of ‘selective’ timber extraction on rainforest structure and composition and some consequences for frugivores and folivores. Biotropica 20: 31–37
Janzen DH (1971) Seed predation by animals. Annual Review of Ecology and Systematics 2: 465–492
Kellman MC (1969) Some environmental components of shifting cultivation in upland Mindanao. Journal of Tropical Geography 28: 40–56
Kellman MC (1980) Geographic patterning in tropical weed communities and early secondary succession. Biotropica (Supplement Tropical Succession) 12: 34–39
Kerr WE and Posey DE (1984) Informaçoes adicionais sobre a agricultura dos Kayapó. Interciencia 9: 392–400
Lathrop DW (1970) The Upper Amazon. Praeger, New York
Lebron ML (1979) An autoecological study ofPalicourea riparia Betham as related to rainforest disturbance in Puerto Rico. Oecologia 42: 31–46
Lebron ML (1980) Physiological plant ecology: some contributions to the understanding of secondary succession in tropical lowland rainforest. Biotropica 12: 31–33 (Supplement, Tropical Succession)
Leck CF (1971) Overlap in the diet of some neotropical birds. Living Bird 10: 89–106
Liew T and Wong FO (1973) Density, recruitment, mortality and growth of dipterocarp seedlings in virgin and logged over forest in Sabah. Malay. Forester 36: 3–15
Lugo AE, Fransworth EG, Pool D, Jerez P and Kaufman G (1973) The impact of the leaf cutter antAtta colombica on the energy flow of a tropical wet forest. Ecology 54: 1292–1301
Lundell CL (1937) The vegetation of the Peten. Carnegie Institution of Washington, Publication No 478
Lundell CL (1938) Plants probably utilized by the old empire Maya of Peten and adjacent lowlands. Paper from the Michigan Academy of Sciences 24: 37–56
Manner HI (1981) Ecological succession in new and old swiddens in montane Papua New Guinea. Human Ecology 9: 357–377
McDiarmid RW, Ricklefs RE and Foster MS (1977) Dispersal ofStemmadenia donnell-smihii (Apocynaceae) by birds. Biotropica 9: 9–25
McDonald CSA (1971) Some ecological aspects of a nesting colony of herons. Ph.D. dissertation, Auburn University, Auburn
Mcdonnell MJ and Stiles EW (1983) The structural complexity of old field vegetation and the recruitment of bird-dispersed plant species. Oecologia 56: 109–116
McKey D (1975) The ecology of co-evolved seed dispersal systems. In: LE Gilbert and PHI Raven (Eds). Co-evolution of animals and plants. pp 159–191. University of Texas Press, Austin
McQuowan N (1964) Los origines y la differenciacion de los Mayos segun se infiere del estudio comparativo de las lenguas Mayanas. In: Desarrollo Cultural de los Mayos. E Vogt and A Ruz (Eds), Universidad Autonoma de Mexico, Mexico, DF
Neel J (1970) Lessons from a Primitive People. Science 170: 815–822
Netting RM (1977) Maya subsistence: mythologies, analogies, possibilities. In: The Origins of Maya Civilization, REW Adams (Ed), University of New Mexico Press, Albuquerque pp 299–333
Nicholson DI (1965) A review of natural regeneration in the dipterocarp forests of Sabah. Malay. Forester 28: 4–24
Nimuendaju C (1939) The Apinayé. Catholic University of America Press, Washington, DC p 6
Opler PA, Baker HG and Frankie GW (1980) Plant reproductive characteristics during secondary succession in neotropical lowland forest ecosystems. Biotropica (Supplement Tropical Succession) 12: 40–46
Padoch C, Chota Inuma J, de Jong W and Unruh J (1985) Amazonian agroforestry: a m market-oriented system in Peru. Agroforestry Systems 3: 47–58
Palmeirim J and Etheridge K (1985) The influence of man-made trails on foraging by tropical frugivorous bats. Biotropica 17: 82–83
Poor MED (1968) Studies in a Malaysian rainforest. I. The forest on Triassic sediments in Jengka Forest Reserve. Journal of Ecology 56: 143–196
Posey DA, Frechione J, Eddins J and da Silva LF (1984) Ethnoecology as applied anthropology in Amazonian development. Human Organization 43: 95–107
Posey DA (1985) Indigenous management of tropical forest ecosystems: the case of the Kayapó indians of the Brazilian Amazon. Agroforestry Systems 3: 139–158
Pratt TK and Stiles EW (1985) The influence of fruit size and structure on composition of frugivore assemblages in New Guinea. Biotropica 17: 314–321
Pratt TK and Stiles EW (1983) How long fruit-eating birds stay in the plants where they feed: implications for seed dispersal. American Naturalist 122: 797–805
Pratt TK (1983) Seed dispersal in a montane forest in Papua New Guinea. Ph.D. Dissertation, Rutgers University, New Brunswick, NJ
Puleston DE (1968)Brosimum alicastrum as a subsistance alternative for the classic Maya of the central southern lowlands. MA Thesis, University of Pennsylvania, Philadelphia
Puleston DE (1978) Terracing, raised field and tree cropping in the Maya lowlands: a new perspective on the geography of power. In: Pre-Hispanic Maya Agriculture, PD Harrison and BL Turner II, (Eds), University of New Mexico Press, Albuquerque, pp 225–245
Raintree JB and Warner K (1986) Agroforestry pathways for the intensification of shifting cultivation. Agroforestry Systems 4: 39–54
Rambo AT (1980) Fire and the energy efficiency of swidden agriculture. Asian Perspectives 23: 309–326
Ribeiro D (1967) Indigenous cultures and languages of Brazil. In: J Hooper (Ed), Indians of Brazil in the 20th Century. Institute for Cross Cultural Research, Washington, p 238
Richards PW (1964) The Tropical Rain Forest: An Ecological Study. Cambridge University Press, Cambridge
Richards PW (1952) The Tropical Rain Forest. Cambridge University Press, Cambridge
Ricklefs RE (1977) A discriminant function analysis of assemblages of fruit-eating bats in Central America. Condor 79: 228–231
Schele L (1978) Plants and animals on the sarcophagus sides at Palenque. Paper, 43rd Annual Meeting, Society of American Archeology, Tucson, Arizona
Schoener TW (1969) Models of optimal size for solitary predators. American Naturalist 103: 277–313
Schulz JP (1960) Ecological studies on a rainforest in Northern Surinam. Verh K Adad Wet (Anakd) 53: 1–267
Scott GAJ (1978) Grassland development in the Gran Pajonal of eastern Peru: a study of soil-vegetation nutrient systems. Hawaii Monographs in Geography, No 1. University of Hawaii at Manoa, Department of Geography, Honolulu
Smith AJ (1975) Invasion and ecesis of bird-disseminated woody plants in a temperate forest sere. Ecology 56: 19–34
Smith N (1980) Anthrosols and human carrying capacity in Amazonia. Annals of the Association of American Geographers 70: 553–566
Smythe N (1970) Relationship between fruiting seasons and seed dispersal methods in a neotropical forest. The American Naturalist 104: 25–35
Snedaker S (1980) Successional immobilization of nutrients and biologically mediated recycling in tropical forests. (Biotropica Supplement Tropical Succession) 12: 16–22
Snow D (1971) Evolutionary aspects of fruit-eating by birds. Ibis( 113: 194–202
Snow D (1962) The natural history of the oilbird,Steatornis caripensis, in Trinidad, W.I.II. Population, breeding ecology and food. Zoologica 47: 199–221
Stark N (1971) Nutrient cycling II: nutrient distribution in Amazonian vegetation. Tropical Ecology 12: 177–201
Thomas DW, Cloutier D, Provencher M and Houle C (1988) The shape of bird- and bat-generated seed shadows around a tropical fruiting tree. Biotropica 20: 347–348
Thompson SA (1981) Evidence for the precolombian use of aroids. Paper, 4th Ethnobiology Conference, University of Missouri, Columbia, Missouri
Turner BL II and Miksicek CH (1984) Economic plant species associated with prehistoric agriculture in the Maya lowlands. Economic Botany 38: 179–193
Tuttle MD (1976) Collecting techniques. In: RJ Baker, JK Jones Jr, DC Carter (Eds). Biology of the New World Family Phyllostomatidae, Part 1, pp 71–88. Special Publications of the Museum, Texas Tech Press, Lubbock
Uhl C, Clark K, Clark H and Murphy P (1981) Early plant succession after cutting and burning in the Upper Rió Negro region of the Amazon basin. Journal of Ecology 69: 631–649
Uhl C (1983) You can keep a good forest down. Natural History 4: 71–79
Uhl C, Clark H, Clark K, and Maquirino P. Successional patterns associated with slash and burn agriculture in the Upper Rió Negro region of the Amazon basin. Biotropica (in press)
Uhl C (1987) Factors controlling succession following slash and burn agriculture in Amazonia. Journal of Ecology 75: 37–407
Unruh JD (1988) Ecological aspects of site recovery under swidden-fallow management in the Peruvian Amazon. Agroforestry Systems 7: 161–184
Unruh JD. Canopy structure and succession in managed and unmanaged fallows fields of the Amazon. Unpublished manuscript
Vasquez-Yanes C (1974) Studies on the germination of seeds:Ochroma lagopus Swartz. Turrialba 24: 176–179
Vasquez-Yanes C and Smith H (1982) Phytochrome control of seed germination in the tropical rain forest pioneer treesCecropia Obtusifolia andPipier auritum and its ecological significance. New Phytology 92: 477–485
Weaver P (1979) Agri-silviculture in tropical America. Unasylva 31: 2–12
Wheelwright P (1979) Fruits and the ecology of resplendent quetzals. Auk 100: 286–300
Whitmore TC (1975) Tropical Forests of the Far East. Clarendon Press, Oxford. 282 pp
Whitmore TC (1974) Change with time and the role of cyclones in tropical rainforest on Kolombangara, Solomon Islands. Commonwealth Forestry Institute, University of Oxford, no 46
Whitmore TC (1978) Gaps in the forestry canopy. In: PB Tomlinson and MJ Zinnerman (Eds). Tropical Trees as Living Systems, pp 639–655. Cambridge University Press, Cambridge
Yarie J (1980) The role of understory vegetation in the nutrient cycle of forested ecosystems in the mountain hemlock biogeoclimatic zone. Ecology 6: 1498–1541
Young KR, Ewel JJ and Brown BJ Seed dynamics during succession in the tropics. Unpublished manuscript
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Unruh, J.D. Iterative increase of economic tree species in managed swidden-fallows of the Amazon. Agroforest Syst 11, 175–197 (1990). https://doi.org/10.1007/BF00838727
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DOI: https://doi.org/10.1007/BF00838727