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  • 1
    Online Resource
    Online Resource
    Oxford :Oxford University Press, Incorporated,
    Keywords: Natural history -- Costa Rica -- Reserva del Bosque Nuboso de Monteverde. ; Cloud forest ecology -- Costa Rica -- Reserva del Bosque Nuboso de Monteverde. ; Nature conservation -- Costa Rica -- Reserva del Bosque Nuboso de Monteverde. ; Electronic books.
    Description / Table of Contents: The Monteverde Cloud Forest Reserve has captured the worldwide attention of biologists, conservationists, and ecologists and has been the setting for extensive investigation over the past 30 years. Roughly 40,000 ecotourists visit the Cloud Forest each year, and it is often considered the archetypal high-altitude rain forest. This volume brings together some of the most prominent researchers of the region to provide a broad introduction to the biology of the Monteverde and cloud forests in general. Collecting and synthesizing vital information about the ecosystem and its biota, the book also examines the positive and negative effects of human activity on both the forest and the surrounding communities. Ecologists, tropical biologists, and natural historians will find this volume an indispensable resource as will all those who are fascinated by the magnificent wonders of the tropical forests.
    Type of Medium: Online Resource
    Pages: 1 online resource (598 pages)
    Edition: 1st ed.
    ISBN: 9780199770977
    DDC: 578.734/097286/6
    Language: English
    Note: Cover -- Contents -- Foreword -- Foreword -- A Manera de Introducción -- Contributors -- 1. Introduction -- 1.1 Historical Overview -- 1.2 The Boundaries -- Monteverde Beginnings -- Scope of Past Work -- Literature Cited -- 2. The Physical Environment -- 2.1 Climate and Weather of Monteverde -- 2.2 Geology and Geologic History of Monteverde -- 2.3 Modern Geography of the Cordillera de Tilarán -- 2.4 Paleoecology of the Cordillera de Tilarán -- 2.5 Soils of Monteverde -- 2.6 Hydrology of Monteverde -- Microclimate Variability -- Epiphytic Histosols -- Literature Cited -- 3. Plants and Vegetation -- 3.1 Distribution and Diversity -- 3.2 Seasonality -- 3.3 Population Biology -- 3.4 Biogeography -- 3.5 Conservation -- Trees on Trees -- Why Strangler Figs Don't Strangle Strangler Figs -- Mucuna urens, a Tropical Liana -- Epiphytes -- Bromeliads -- Orchids -- Evolution in Cloud Forest Psychotria Section Notopleura via Growth Form Diversification -- Bryophytes -- Plants Growing on Living Leaves -- Mistletoes and Where They Grow -- An Exceptional Mistletoe, Gaiadendron punctatum -- Gut Fungi of Invertebrates -- Breeding Systems of Monteverde Inga -- Sex Ratios and the Distribution of Male and Female Trees -- Clonal Reproduction through Plant Fragments in Poikilacanthus macranthus -- Ferns -- Description of Permanent Forest Plots in Monteverde -- Literature Cited -- 4. Insects and Spiders -- 4.1 Aquatic Insects -- 4.2 Orthoptera: Katydids, Crickets, and Grasshoppers -- 4.3 Hemiptera: Heteroptera and Homoptera -- 4.4 Coleoptera: Beetles -- 4.5 Lepidoptera: Moths and Butterflies -- 4.6 Diptera: Flies -- 4.7 Hymenoptera: Sawflies, Wasps, Ants, and Bees -- 4.8 Arachnids: Spiders, Scorpions, and Mites -- Literature Cited -- 5. Amphibians and Reptiles -- 5.1 The Area and Its Fauna -- 5.2 Distribution and Diversity -- 5.3 Geography and History. , 5.4 Population Ecology -- 5.5 Reproductive Ecology -- 5.6 Habitat Use -- 5.7 Conservation -- 5.8 Summary -- The Discovery of the Golden Toad -- Monteverde Salamanders, Golden Toads, and the Emergence of the Global Amphibian Crisis -- How Do Meadow Treefrogs Decide Where to Lay Eggs? -- The Golden Toad Laboratory for Conservation -- Literature Cited -- 6. Birds -- 6.1 Distribution, Species Richness, and Diversity -- 6.2 Behavior -- 6.3 Reproductive Biology -- 6.4 Responses to Seasonality -- 6.5 Population Biology -- 6.6 Community Ecology -- 6.7 Comparative Ecology -- 6.8 Conservation Issues -- 6.9 Conclusions -- Cooperation Between Male Long-Tailed Manakins -- Why Join Mixed-Species Flocks? A Frugivore's Perspective -- The Cost of Social Foraging in Mixed-Species Bird Flocks -- Choosiness and Productivity in Wrens of Forests, Fragments, and Farms -- Do Fruit-Eating Birds Actively Select or Avoid Insect-Infested Fruits? -- Brown Jays: Complex Sociality in a Colonizing Species -- Ecology and Sexual Dimorphism of Emerald Toucanets -- The Roles of Long-Tailed Manakin Vocalizations in Cooperation and Courtship -- Do Subordinate Species Have an Advantage? Testing the Pointer Hypothesis with Tropical Hummingbirds -- Literature Cited -- 7. Mammals -- 7.1 Methods -- 7.2 Distribution, Species Richness, and Diversity -- 7.3 Research on Mammals in Monteverde -- 7.4 Migration -- 7.5 Changes in Altitudinal Limits of Life Zones as Suggested by Bats -- 7.6 Historical Use and Change in Abundance of Mammals -- 7.7 Conservation of Monteverde Mammals -- Observations on Monteverde's Mammals -- Singing Mice -- Reproduction and Dynamics of Deer Mice -- Arboreal Mammals -- Mice, Birds, and Pollination of Blakea chlorantha -- Baird's Tapir -- Literature Cited -- 8. Plant-Animal Interactions -- 8.1 Plant-Pollinator Interactions -- 8.2 Plant-Frugivore Interactions. , Hummingbird Pollination of Epiphytic Ericaceae in the Cloud Forest Canopy -- Scarab Beetles, Elephant Ear (Xanthosoma robustum), and Their Associates -- Fig Pollination and Seed-Dispersal Mutualisms -- The Reproductive Biology of Blakea and Topobea (Melastomataceae) -- Interactions among Inga, Herbivores, Ants, and Insect Visitors to Foliar Nectaries -- A Fly Larva Directly Alters Floral Sex in Centropogon solanifolius -- Deceit Pollination in Begonia -- A Hypothesis about the Timing of Flowering and Fruiting in Competing Tropical Trees -- Fruiting Phenologies of Pioneer Plants: Constraints Imposed by Flowering Phenology, Disturbance Regime, and Disperser Migration Patterns -- What Happens to Seeds of Vertebrate-Dispersed Trees after Dispersal? -- Specialized Seed Dispersal: Mistletoes and Fruit-Eating Birds -- Seed Dispersal and Seedling Recruitment in a Lauraceous Tree Species -- Myrmecophytes -- The Importance of Different Bird Species as Seed Dispersers -- Literature Cited -- 9. Ecosystem Ecology and Forest Dynamics -- 9.1 Forest Structure, Composition, and Dynamics -- 9.2 Forest Biogeochemistry and Nutrient Cycling -- 9.3 Future Research Directions -- Microbial Biomass and Activity in Canopy Organic Matter and the Forest Floor -- Invertebrates in Canopy and Ground Organic Matter -- Vesicular-Arbuscular Mycorrhizae of Epiphytic and Terrestrial Piperaceae -- Factors Affecting the Initiation and Growth of Aboveground Adventitious Roots in a Tropical Cloud Forest Tree: An Experimental Approach -- Fine Litter Dynamics within the Tree Canopy of a Tropical Cloud Forest -- Longevity of Fallen Epiphytes -- Literature Cited -- 10. Conservation in the Monteverde Zone: Contributions of Conservation Organizations -- 10.1 The Context -- 10.2 The Quakers and Bosqueterno, S.A. -- 10.3 The Monteverde Cloud Forest Preserve. , 10.4 The Monteverde Conservation League and Bosque Eterno de los Niños -- 10.5 Santa Elena High School Cloud Forest Reserve -- 10.6 The Monteverde Institute -- 10.7 Environmental Education in Public and Private Schools -- 10.8 Conclusion: Lessons from Monteverde and Topics for Future Research -- Key to Abbreviations Used in this Chapter -- The Changing Face of Tourism -- Pros and Cons of Ecotourism -- Debt-for-Nature Swaps -- The Community Process of Environmental Education -- Monteverde 2020 -- El Buen Amigo -- La Bella Farm -- San Gerardo: An Experiment in Sustainable Development -- Conservation Easements in Monteverde: The Enlace Verde Project -- The Monteverde Butterfly Garden -- Comité de Artesanías Santa Elena-Monteverde -- La Campesinita -- Human Voices around the Forest -- Literature Cited -- 11. Agriculture in Monteverde: Moving Toward Sustainability -- 11.1 The Monteverde Dairy Industry -- 11.2 Lowland Dual-Purpose and Beef Production -- 11.3 Coffee Production -- 11.4 Other Crops -- 11.5 Livestock and Fowl -- 11.6 Future Directions and Conclusions -- Prehistoric Cultures and Inhabitants -- The Agroecology of Prosapia: Spittlebugs, Froghoppers, and Pasture Pests -- Brassicas as Biological Plows -- Pasture Burning -- Monteverde's Kitchen Gardens -- Pesticide Use in the Santa Elena Area -- Frijol Tapado or "Covered Beans -- The Pig Farm: "Sustainable Agriculture" or "an Abomination"? -- Literature Cited -- 12. Conservation Biology -- 12.1 Richness, Endemism, and Biodiversity -- 12.2 An Overview of Key Concepts in Conservation Biology -- 12.3 The Status of Biodiversity in Monteverde: What Is at Stake? -- 12.4 Conservation Problems in Monteverde -- 12.5 Can Conservation Biology Offer Solutions to Monteverde's Conservation Problems? -- 12.6 Conclusions -- Enduring Reasons to Preserve Species -- How Have Humans Affected Bird Populations?. , The Influence of Fruit-Eating Bats on the Dynamics and Composition of Neotropical Premontane Cloud Forests -- The Importance of Pacific Slope Forest for Maintaining Regional Biodiversity -- La Ventana in Monteverde: A Migration Corridor for Insects -- Altitudinal Migrations and Habitat Linkages: Using the Resplendent Quetzal as an Indicator for Evaluating the Design of the Monteverde Reserve Complex -- Patterns in the Regeneration of Lauraceous Trees in Abandoned Pastures -- The Impact of the Monteverde Lechería on the Quebrada Guacimal -- House Wrens in Monteverde: A Population Sink? -- Windbreaks as Corridors for Birds -- Windbreaks as Habitats for Trees -- The Search for Medicines from the Plants of Monteverde -- Literature Cited -- Appendixes -- Appendix 1. Vascular Plants of Monteverde -- Appendix 2. Number of Species with Different Plant Growth Forms -- Appendix 3. Orchids of Monteverde -- Appendix 4. Bromeliads of Monteverde -- Appendix 5. Host Plants of Selected Cercopoidea from Monteverde -- Appendix 6. Preliminary List of Psylloidea Known from Costa Rican Cloud Forests (1200-2000 m) -- Appendix 7. Eusocial Wasps (Hymenoptera: Vespidae Polistinae and Spheddae) Collected from Monteverde -- Appendix 8. Amphibians and Reptiles of Monteverde -- Appendix 9. Birds of the Monteverde Area -- Appendix 10. Mammals of Monteverde -- References -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- X -- Y -- Z.
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  • 2
    ISSN: 1432-1939
    Keywords: Adventitious roots ; Epiphyte ; Mineral nutrition ; Tropical cloud forest ; Senecto cooperi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Some of the proximate factors that would induce aboveground stems to produce adventitious roots were investigated experimentally on Senecio cooperi, a tropical cloud forest tree. Stem segments were air-layered with different treatments to promote root formation, and the number of roots initiated and rates of root growth were monitored for 20 weeks. Treatments were the application of wet epiphytes or dry epiphytes plus associated humus, sponges wetted with either water or nutrient solutions, or dry sponges. Controls (stem segments with nothing applied) were also monitored. Numbers of adventitious roots formed and rates of subsequent root growth differed among treatments. Wet epiphyte/humus and nutrient solutions were most effective in producing roots, which suggests that epiphytes and the nutrients they intercept and retain within the canopy may cue adjacent host tissue to exploit this resource.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 366 (1993), S. 502-502 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Beneath the title of an advertise-ment in Nature (11 November 1993, facing page 129) headed "ApoE predicts Alzheimer" was the quotation "... a common marker for a devastating and frightening disease must provide the im-petus for social and legislative change. Our thinking of Alzheimer's ...
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1890
    Keywords: Vesicular-arbuscular mycorrhizae ; Piperaceae ; Epiphytes ; Facultative mycotrophy ; Cloud forest
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We examined the roots of 27 epiphytic and terrestrial species of Piperaceae collected in primary and secondary habitats in Monteverde, Costa Rica. Terrestrial roots of only two of the nine Peperomia species, two of eight Piper species, and of Pothomorphe umbellatum contained internal vesicles and/or arbuscules. We did not find internal vesicles and/or arbuscules in 3024 cm of fine roots of epiphytic Piperaceae, even though 15% of these root segments had associated external typical glomalean hyphae. Glomus and Acaulospora spores, and Gigaspora auxiliary cells occurred in both canopy and terrestrial habitats. After inoculation of a low nutrient substrate, the facultatively epiphytic Peperomia costaricensis averaged 23% mycorrhizal root length. Relatively high atmospheric inputs of dissolved inorganic nutrients that alleviate the requirement for mycorrhizae, and heterogeneity of mycorrhiza inocula in the canopy may explain the absence of mycorrhizae from epiphytic Piperaceae. We suggest that the Piperaceae comprises predominantly facultatively mycotrophic species, and that facultative mycotrophism facilitates their radiation to the canopy.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 137 (1991), S. 209-222 
    ISSN: 1573-5036
    Keywords: California ; litterfall ; mediterranean-climate ; nutrient-cycling ; oaks ; Quercus douglasii ; throughfall
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The monthly deposition of total nitrogen, phosphorus, potassium, calcium and magnesium via canopy throughfall, and various components of the litterfall was measured for 31 months under mature Quercus douglasii and in the bulk precipitation in the surrounding open grassland. Seasonal patterns of nutrient concentration in leaf litter, throughfall, and precipitation were also measured. Total annual subcanopy deposition exceeded open precipitation deposition by approximately 45–60x for nitrogen, 5–15x for phosphorus, 30–35x for potassium, 25–35x for calcium, and 5–10x for magnesium. Total annual subcanopy deposition was low in comparison to other oak woodland sites reported in the literature. Throughfall and leaf litter were the primary sources of nutrients and thus determined the seasonal peaks of nutrient deposition. The first autumn rains and leaf fall were associated with one peak in nutrient deposition, and throughfall during early spring leaf emergence was associated with a second peak in potassium, magnesium and phosphorus. Non-leaf plant litter (excluding acorns) provided approximately 15–35% of most nutrients, with twigs and bark depositing over 12% of the annual calcium flux in 1987–1988, and flower litter depositing over 8% of the annual nitrogen flux in 1986–1987. Acorns had high concentrations of phosphorus and nitrogen and during the mast season of 1987–1988 they contained a large proportion of the total subcanopy annual flux of these elements. With acorns excluded, total annual nutrient deposition was similar between years, but timing of nutrient deposition differed. Late summer leaf fall associated with drought, variation in precipitation, and variation in deposition of non-leaf parts were associated with seasonal differences in nutrient deposition between years.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-5036
    Keywords: adventitious roots ; gamma spectrometry ; mineral uptake ; Salix syringiana ; translocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Nutrient uptake and translocation by above-ground adventitious roots and below-ground roots of woodySalix syringiana saplings were studied with gamma spectrometry. Each of four radionuclides (75Se,138Cs,54Mn, and65Zn) administered to adventitious and belowground roots were detected in stems and leaves within one month. Nuclides tended to be immobilized in the leaves and branches closest to the adventitious roots that absorbed them, while nuclides absorbed from below-ground sources were distributed more evenly throughout the plant. The capacity of adventitious roots to acquire nutrients from above-ground sources suggests they function as a potential ‘auxiliary’ pathway of nutrient uptake and might enhance plant nutrient status where below-ground root uptake it hindered by adverse soil conditions.
    Type of Medium: Electronic Resource
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