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Literatura académica sobre el tema "Rainforest"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 20 de febrero de 2023

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Artículos de revistas sobre el tema "Rainforest"

M. J. S. Bowman, D. y J. C. Z. Woinarski. "Biogeography of Australian monsoon rainforest mammals: implications for the conservation of rainforest mammals". Pacific Conservation Biology 1, n.º 2 (1994): 98. http://dx.doi.org/10.1071/pc940098.

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Monsoon rainforests form an archipelago of small habitat fragments throughout the wet-dry tropics of northern Australia. According to the definition of Winter (1988) the current monsoon rainforest mammal assemblage contains only one rainforest specialist mammal species (restricted to Cape York Peninsula), and is dominated by eutherian habitat generalists (murids and bats) that mostly occur in surrounding savannah habitats. The mammal assemblages in monsoon rainforests across northern Australia (Cape York Peninsula, Northern Territory and the Kimberley) are essentially regional subsets of the local savannah and mangrove mammal assemblages, and consequently share only a limited number of species in common (most of which are bats). The lack of rainforest specialists in northwestern Australia is thought to be due to: (i) the lack of large tracts (> 1 000 ha) of monsoon rainforest habitat; (ii) the possible substantial contraction of these habitats in the past; and (iii) the limited extent of gallery rainforests, such rainforests being important habitats for rainforest mammals in South American savannahs. Unfortunately it is not possible to identify the threshold of habitat area required to maintain populations of monsoon rainforest specialist mammal species because of an impoverished fossil record pertaining to the past spatial distribution of monsoon rainforests. The implications of the lack of a specialist mammal fauna in Australian monsoon rainforests for the future of heavily fragmented tropical rainforests elsewhere in the world is briefly discussed. It is concluded that the analogy of habitat fragments to true islands is weak, that rainforest plant species are less vulnerable to local extinction than mammals, that the loss of mammal rainforest specialists may not result in a dramatic loss of plant species, and that corridors of rainforest may be critical for maintenance of rainforest mammal assemblages in areas currently subject to forest clearance.

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Lin, Meizhi, Qingping Ling, Huiqing Pei, Yanni Song, Zixuan Qiu, Cai Wang, Tiedong Liu y Wenfeng Gong. "Remote Sensing of Tropical Rainforest Biomass Changes in Hainan Island, China from 2003 to 2018". Remote Sensing 13, n.º 9 (27 de abril de 2021): 1696. http://dx.doi.org/10.3390/rs13091696.

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The largest area of tropical rainforests in China is on Hainan Island, and it is an important part of the world’s tropical rainforests. The structure of the tropical rainforests in Hainan is complex, the biomass density is high, and conducting ground surveys is difficult, costly, and time-consuming. Remote sensing is a good monitoring method for biomass estimation. However, the saturation phenomenon of such data from different satellite sensors results in low forest biomass estimation accuracy in tropical rainforests with high biomass density. Based on environmental information, the biomass of permanent sample plots, and forest age, this study established a tropical rainforest database for Hainan. Forest age and 14 types of environmental information, combined with an enhanced vegetation index (EVI), were introduced to establish a tropical rainforest biomass estimation model for remote sensing that can overcome the saturation phenomenon present when using remote sensing data. The fitting determination coefficient R2 of the model was 0.694. The remote sensing estimate of relative bias was 2.29%, and the relative root mean square error was 35.41%. The tropical rainforest biomass in Hainan Island is mainly distributed in the central mountainous and southern areas. The tropical rainforests in the northern and coastal areas have been severely damaged by tourism and real estate development. Particularly in low-altitude areas, large areas of tropical rainforest have been replaced by economic forests. Furthermore, the tropical rainforest areas in some cities and counties have decreased, affecting the increase in tropical rainforest biomass. On Hainan Island, there were few tropical rainforests in areas with high rainfall. Therefore, afforestation in these areas could maximize the ecological benefits of tropical rainforests. To further strengthen the protection, there is an urgent need to establish a feasible, reliable, and effective tropical rainforest loss assessment system using quantitative scientific methodologies.

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Scheffers, Brett R., Ben L. Phillips, William F. Laurance, Navjot S. Sodhi, Arvin Diesmos y Stephen E. Williams. "Increasing arboreality with altitude: a novel biogeographic dimension". Proceedings of the Royal Society B: Biological Sciences 280, n.º 1770 (7 de noviembre de 2013): 20131581. http://dx.doi.org/10.1098/rspb.2013.1581.

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Biodiversity is spatially organized by climatic gradients across elevation and latitude. But do other gradients exist that might drive biogeographic patterns? Here, we show that rainforest's vertical strata provide climatic gradients much steeper than those offered by elevation and latitude, and biodiversity of arboreal species is organized along this gradient. In Philippine and Singaporean rainforests, we demonstrate that rainforest frogs tend to shift up in the rainforest strata as altitude increases. Moreover, a Philippine-wide dataset of frog distributions shows that frog assemblages become increasingly arboreal at higher elevations. Thus, increased arboreality with elevation at broad biogeographic scales mirrors patterns we observed at local scales. Our proposed ‘arboreality hypothesis’ suggests that the ability to exploit arboreal habitats confers the potential for larger geographical distributions because species can shift their location in the rainforest strata to compensate for shifts in temperature associated with elevation and latitude. This novel finding may help explain patterns of species richness and abundance wherever vegetation produces a vertical microclimatic gradient. Our results further suggest that global warming will ‘flatten’ the biodiversity in rainforests by pushing arboreal species towards the cooler and wetter ground. This ‘flattening’ could potentially have serious impacts on forest functioning and species survival.

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Curran, Timothy J., Peter J. Clarke y Nigel W. M. Warwick. "Drought survival of Australian rainforest seedlings is influenced by species evolutionary history and soil type". Australian Journal of Botany 61, n.º 1 (2013): 22. http://dx.doi.org/10.1071/bt12081.

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Water availability influences regional tree distributions in rainforests, often by affecting survival of seedlings. The occurrence of ‘dry rainforest’ species in subhumid climates has been attributed to the evolution of drought-resistant species from their mesic rainforest congeners. Many genera are found in both dry and mesic rainforest of Australia but the extent to which this is due to differential drought resistance has not been confirmed experimentally. We compared drought survival within three congeneric pairs of dry and mesic rainforest taxa in a glasshouse dry-down experiment. Soil type could also play a role, with dry rainforests mostly occurring on fine-textured soils such as loams, which have a high available water-holding capacity, compensating for lower rainfall. Hence, we grew plants in loam or sand soil. In all pairs, the dry rainforest taxon was better able to survive drought, providing support for the climate-induced evolution of a dry rainforest flora and further confirming that drought resistance of seedlings can shape tree species distributions at regional scales. Two of three pairs had higher seedling survival on basalt-derived loam soil, suggesting that such soils may aid seedling persistence during drought. Over evolutionary time, this may have resulted in the high fidelity of dry rainforest for these soils.

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Ngomanda, A., A. Chepstow-Lusty, M. Makaya, C. Favier, P. Schevin, J. Maley, M. Fontugne, R. Oslisly y D. Jolly. "Western equatorial African forest-savanna mosaics: a legacy of late Holocene climatic change?" Climate of the Past 5, n.º 4 (26 de octubre de 2009): 647–59. http://dx.doi.org/10.5194/cp-5-647-2009.

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Abstract. Past vegetation and climate changes reconstructed using two pollen records from Lakes Maridor and Nguène, located in the coastal savannas and inland rainforest of Gabon, respectively, provide new insights into the environmental history of western equatorial African rainforests during the last 4500 cal yr BP. These pollen records indicate that the coastal savannas of western equatorial Africa did not exist during the mid-Holocene and instead the region was covered by evergreen rainforests. From ca. 4000 cal yr BP a progressive decline of inland evergreen rainforest, accompanied by the expansion of semi-deciduous rainforest, occurred synchronously with grassland colonisation in the coastal region of Gabon. The contraction of moist evergreen rainforest and the establishment of coastal savannas in Gabon suggest decreasing humidity from ca. 4000 cal yr BP. The marked reduction in evergreen rainforest and subsequent savanna expansion was followed from 2700 cal yr BP by the colonization of secondary forests dominated by the palm, Elaeis guineensis, and the shrub, Alchornea cordifolia (Euphorbiaceae). A return to wetter climatic conditions from about 1400 cal yr BP led to the renewed spread of evergreen rainforest inland, whereas a forest-savanna mosaic still persists in the coastal region. There is no evidence to suggest that the major environmental changes observed were driven by human impact.

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Menkhorst, KA y JCZ Woinarski. "Distribution of mammals in monsoon rainforests of the Northern Territory". Wildlife Research 19, n.º 3 (1992): 295. http://dx.doi.org/10.1071/wr9920295.

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The mammal fauna of 50 patches of monsoon rainforest in the Northern Territory, Australia, was surveyed. No mammal species is restricted to this habitat, and most of the region's marnmal fauna uses it at least occasionally. Mammal species composition within monsoon rainforests undergoes substantial variation along an extensive environmental gradient reflecting moisture condition and rockiness. For most mammal species, variation in abundance among patches was related more to the position of the patch on this environmental gradient than to patch size or extent of disturbance. Disturbance was positively correlated with the richness and abundance in quadrats of three taxonomic groupingsrodents, 'other' native species, and all native species (other than bats)-and negatively correlated with richness and abundance of macropods. Compared with surrounding (open forest and savanna woodland) vegetation, monsoon rainforests have few grazing herbivores and small granivorous rodents, but more species that eat fleshy fruits and seeds from woody plants. The mammal fauna of monsoon rainforests in the Northern Territory is similar to that of monsoon rainforests of the Kimberley (to the west) but unlike that of wet tropical rainforests in Cape York (to the east). These differences, and the current impoverishment of the mammal fauna of the Northern Territory monsoon rainforest, are attributable to historical processes and the current small area of this highly fragmented monsoon rainforest estate. Three bat species may be important for pollination and dispersal of monsoon rainforest plants.

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Burnham, Robyn J. y Kirk R. Johnson. "South American palaeobotany and the origins of neotropical rainforests". Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 359, n.º 1450 (29 de octubre de 2004): 1595–610. http://dx.doi.org/10.1098/rstb.2004.1531.

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Extant neotropical rainforest biomes are characterized by a high diversity and abundance of angiosperm trees and vines, high proportions of entire–margined leaves, high proportions of large leaves (larger than 4500 mm 2 ), high abundance of drip tips and a suite of characteristic dominant families: Sapotaceae, Lauraceae, Leguminosae (Fabaceae), Melastomataceae and Palmae (Arecaceae). Our aim is to define parameters of extant rainforests that will allow their recognition in the fossil record of South America and to evaluate all known South American plant fossil assemblages for first evidence and continued presence of those parameters. We ask when did these critical rainforest characters arise? When did vegetative parameters reach the level of abundance that we see in neotropical forests? Also, when do specific lineages become common in neotropical forests? Our review indicates that evidence of neotropical rainforest is exceedingly rare and equivocal before the Palaeocene. Even in the Palaeocene, the only evidence for tropical rainforest in South America is the appearance of moderately high pollen diversity. By contrast, North American sites provide evidence that rainforest leaf physiognomy was established early in the Palaeocene. By the Eocene in South America, several lines of evidence suggest that neotropical rainforests were diverse, physiognomically recognizable as rainforest and taxonomically allied to modern neotropical rainforests. A mismatch of evidence regarding the age of origin between sites of palaeobotanical high diversity and sites of predicted tropical climates should be reconciled with intensified collecting efforts in South America. We identify several lines of promising research that will help to coalesce previously disparate approaches to the origin, longevity and maintenance of high diversity floras of South America.

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Reichel, H. y AN Andersen. "The Rainforest Ant Fauna of Australia's Northern Territory". Australian Journal of Zoology 44, n.º 1 (1996): 81. http://dx.doi.org/10.1071/zo9960081.

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An ant survey of Northern Territory (NT) rainforests, which occur as numerous small and isolated patches within a predominantly savanna landscape, yielded 173 species from 46 genera. The richest genera were Polyrhachis (22 species), Pheidole (21 species), Rhytidoponera (12 species) and Monomorium (12 species). Seven genera represented new records for the NT: Discothyrea, Prionopelta, Machomyrma, Strumigenys, Bothriomyrmex, Turneria and Pseudolasius. The most common ants were Generalised myrmicines, particularly species of Pheidole and Monomorium, and Opportunists such as species of Paratrechina, Tetramorium, Odontomachus and Rhytidoponera. This is also the case in rainforests of the Kimberley region of Western Australia. Of NT rainforest species, 59% have Torresian (tropical) affinities, which is only slightly higher than in Kimberley rainforests (48%). However, the NT harbours a far higher proportion of specialist rainforest species (27 v. 9%), including many more with arboreal nests (13 v. 5% of total species). Many of the rainforest specialists are of considerable biogeographic interest, with a substantial number having disjunct distributions in the NT and Queensland (and often also New Guinea) A small number represent the only known Australian records of south-east Asian species. Interestingly, very few species appear to be endemic to NT rainforests, with a previously unrecorded species of Aphaenogaster being a probable exception. The NT rainforest fauna also includes several introduced species, with at least one (Pheidole megacephala) posing a serious conservation threat.

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Kantvilas, G., P. W. James y S. J. Jarman. "Macrolichens in Tasmanian Rainforests". Lichenologist 17, n.º 1 (febrero de 1985): 67–83. http://dx.doi.org/10.1017/s0024282985000081.

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Abstract96 macrolichens, including 12 new records, are reported for cool temperate rainforests in Tasmania. These species belong mainly to the austral cool temperate element. A descriptive account of the lichen floras from five major rainforest communities is given. Field observations suggest that substrate and light are the most important ecological factors affecting the distribution of lichens in rainforest. Although most species are widespread in Tasmania, large-scale disturbance and the fragmentation of rainforest stands is seen as a threat to their survival.

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Lynch, A. J. J. y V. J. Neldner. "Problems of placing boundaries on ecological continua - options for a workable national rainforest definition in Australia". Australian Journal of Botany 48, n.º 4 (2000): 511. http://dx.doi.org/10.1071/bt97022.

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Options for a new definition of, and key for, rainforest in Australia are provided. The definitions take a national perspective, and are based on the ecological characteristics of rainforest species and some structural and floristic characteristics. Rainforest plant species are defined as those adapted to regenerating under low-light conditions experienced under the closed canopy or in localised gaps caused by recurring disturbances which are part of the natural rainforest ecosystem, and are not dependent on fire for successful regeneration. Three definitions are provided which differ in the extent of inclusion of transitional and seral communities. The first definition recognises communities such as mixed forests as transitional to rainforests and therefore as separate communities. The second definition includes a minimal component of emergent non-rainforest species in rainforest in the recognition that the main floristic component and functioning of the communities cannot be distinguished. The third definition includes the late successional stages of transitional and seral communities in rainforest on the presumption that such communities include non-rainforest species which are close to senescence, and that these communities are essential for the long-term conservation of rainforest in areas where rainforest is vulnerable and subject to major disturbance, particularly by fire. The first definition is concluded to be the least ambiguous and arbitrary, and enables a consistent approach to rainforest management. Recognition of mixed forests as a distinctive and mappable vegetation type should be incorporated in a comprehensive conservation strategy inclusive of all ecosystem developmental stages.

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Tesis sobre el tema "Rainforest"

Tang, Yong. "Maintenance and Dynamics of Rainforest Edges". Thesis, Griffith University, 2008. http://hdl.handle.net/10072/367442.

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Deforestation and fragmentation of rainforest has become one of the major threats to global biodiversity and the massive loss of rainforest during the past decades has pushed the global biota to the edge of the global species extinction crisis. Despite the increasing public awareness and tremendous efforts made internationally to save the remaining rainforest, the deforestation rate continues to accelerate in many rainforest areas. This trend is due mainly to increasing human population and local or regional economical or political crises creating increased needs and demands on land use and rainforest products. In addition to the loss of large areas of wildlife habitat, a direct consequence of rainforest fragmentation is the increase in the extent of edges, through which “hostile” edge effects can have a profound impact on the dynamics of remaining rainforests. There is an urgent need to understand the underlying mechanisms that drive the dynamics of the rainforest edges and more important, the subsequent long-term impact on the local and regional rainforest. The main objective of the study described in this thesis has been to compare the patterns with which rainforest plants respond to the edge environment at different types of edges involving rainforests. The study was conducted within a fragmented subtropical rainforest complex in Lamington National Park, Southeast Queensland. Rainforest trees, lianas, seedling banks and soil seed banks were investigated at eucalypt forest/ rainforest, pasture/ rainforest and roadside rainforest edges. For each edge type, nine 100 m transects were established from the edge to rainforest interior and transects were extended 50 m into eucalypt forest and pasture for additional sampling of surrounding matrices. Vegetation surveys were conducted along the edge transects for the study of trees, lianas and seedlings. Soil seed banks were investigated by germination experiments conducted in a shade house, using soil samples collected along the edge transect. The results from the edge studies were compared with corresponding studies in a 1 ha rainforest reference plot located in a relatively undisturbed area within the rainforest interior...
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Environment
Faculty of Environmental Sciences and Engineering
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Burns, Shannon. "Rainforest action network green campaign /". Click here to view, 2009. http://digitalcommons.calpoly.edu/artsp/30.

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Thesis (B.F.A.)--California Polytechnic State University, 2009.
Project advisor: Kathryn McCormick. Title from PDF title page; viewed on Jan. 21, 2010. Includes bibliographical references. Also available on microfiche.

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Prescott, T. A. K. "Antimicrobial compounds from tropical rainforest plants". Thesis, University of Edinburgh, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.660747.

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Ethnobotanical fieldwork was carried out in New Guinea. An antibacterial field assay kit was developed using freeze-dried strains of S. epidermidis and E. coli which allowed plants used in traditional medicines to be screened in situ without having to take them back to a laboratory. This approach identified Lunasia amara (Blanco) as a candidate species; the use of its bark by tribes of the Whitman Range to treat tropical ulcers, supported by clear zones of inhibition with S. aureus. Samples of the bark were collected for analysis and through activity-guided fractionation, the anti- S. aureus activity of the bark extract was pinned down to a single well resolved HPLC peak (MIC S. aureus NCTC 6571 64μg/ml) which subsequent NMR analysis revealed to be the quinoline alkaloid lunacridine; 2’-O-trifluoroacetyl lunacridine was found to be a more stable derivative however. Lunacridine’s planar cationic structure suggested it might act as a DNA intercalator; 220μM giving 50% binding in an ethidium bromide displacement assay. This in turn suggested DNA topoisomerase II as a likely target for the compound which was confirmed with a kDNA decatenation assay revealing complete inhibition of the enzyme at 5μM. Cell viability assays with MRC-5, H226 and HELA cells showed the compound to be cytotoxic in a time dependent manner producing non-linear dose response curves indicative of a topoisomerase poison mode of action. Activation of the apoptosis pathway enzymes caspase 3/7 was also detected, reaching maximal activity between 24 and 48 hours for the H226 cell line. Thus, lunacridine does not represent a selective antibiotic but with the right structural modifications could be developed as an antineoplastic agent.

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Ericsson, Linda-Mari. "Mountain Rainforest Management in Babati District, Tanzania". Thesis, Södertörn University College, School of Life Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-634.

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This paper deals with Community Based Forest Management in Mountain rainforests in Babati. This form of management is when the Communities are managing the forest with some help from the Government.

I have made a field study to see how the managing is working the mountain forests. I made interviews with chairmen, guards and district council. The purpose with the interview is to give answers to my questions about CBFM and how it is working. I want to see if the CBFM is sustainable in Babati and know if the villagers are satisfied with it. To answer the sustainability questions, studies in Ostroms eight principles for sustainable forest management is made.

The main conclusions of the study are: Babati will have a sustainable management if they follow the rules and laws that are made for Community Based Forest Management, if the community gets some kind of benefits for being the manager and they want to take care of the forest in a good way when they are the owners. If there are threats against the villagers like pressure from others villages or corruptions this sustainability can be destroyed.

CBFM needs supporting systems, help from the Government, clearly defined boundaries and the basic needs like food and shelter is fulfilled before they can think of the ecosystem health and sustainability.

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Healey, John Robert. "Regeneration in a Jamaican montane tropical rainforest". Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335160.

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Lucey, Jennifer Marie. "Insect diversity across rainforest-oil palm ecotones". Thesis, University of York, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.547326.

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Skoglund, Björn. "Diffusive gas fluxes in neotropical rainforest streams". Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105692.

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Rainforests are of great importance to global carbon cycling, but the importance of deforestation and change in land use is poorly understood due to a lack of studies quantifying the difference in carbon fluxes between original rainforest and agricultural land. Furthermore, the aquatic outgassing of neotropical systems have been proven to have greater impact on global carbon cycling than previously anticipated (Richey et al 2002).In this study we investigated the aquatic concentration and daily diffusive gas flux of CO2 and CH4 from 4 pristine sites and 4 impacted sites, respectively, in 4 streams running along a gradient of anthropological impaction in the Atlantic Rainforest, Brazil. Statistically significant differences between pristine and impacted sites were found in all streams for both CO2 and CH4. On average, the impacted sites were found to be emitting almost three times as much C into the atmosphere as the pristine sites, mainly owing to CO2 emissions (14172±5226 mg C m-2 d-1). Exploring an area of the neotropical carbon cycle that is not yet fully understood, the study draws attention to the significant difference in aquatic outgassing from rivers observed at different impaction levels and highlights the need for further field studies.

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Hou, Yanpeng. "Antiproliferative Natural Products from the Madagascar Rainforest". Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/39467.

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As part of an International Cooperative Biodiversity Groups (ICBG) program and a continuing search for anticancer natural products from the Madagascar rainforest, twenty extracts from Madagascar were selected for investigation based on their antiproliferative activity. Bioassay-guided fractionation of five of the extracts yielded sixteen new compounds, and their structures were determined using a combination of 1D and 2D NMR experiments, including COSY, HSQC/HMQC, HMBC, and ROESY/NOESY sequences, mass spectrometry, and chemical conversion. In addition, ten known compounds were obtained from five of the extracts. Studies on the remaining extracts were suspended due to various reasons. A multi-step synthesis of the sesquiterpenoid, (7R*)-opposite-4(15)-ene-1beta,7-diol, was also described. The first chapter of this dissertation reviews the new compounds isolated from Malagasy plants and marine organism in the last two decades. Chapters II to VI discuss the isolation, structure elucidation and bioactivities of new compounds from Scutia myrtina, Cordyla madagascariensis ssp. madagascariensis, Elaeodendron alluaudianum, Cassipourea lanceolata, and Sclerocarya birrea subsp. caffra. Chapter VII describes the synthesis and bioactivity of the sesquiterpenoid,(7R*)-opposite-4(15)-ene-1beta,7-diol. The isolation of known compounds is discussed briefly in the last chapter.
Ph. D.

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Robinson, Niall Hamilton. "Aerosols in and above the Bornean rainforest". Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/aerosols-in-and-above-the-bornean-rainforest(0418d0eb-4a42-41d0-97ab-555cbb803c1e).html.

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Atmospheric aerosols affect climate directly by scattering and absorbing solar radiation, and indirectly by affecting the albedo and lifetime of clouds through their role as cloud condensation nuclei. Aerosol sources, and the processes that govern their evolution in the atmosphere are not well understood, making the aerosol effects a significant source of uncertainty in future climate predictions. The tropics experience a large solar flux meaning that any radiative forcing in this region is particularly important. Despite this, there is a paucity of data from the tropics, with the majority of previous studies performed in the northern mid-latitudes. The few in-situ studies of aerosol composition that have been performed are all in the continental settings of Amazonia or Africa. Until now the 'maritime continent' region of South East Asia has remained unstudied. Presented here are Aerosol Mass Spectrometer composition measurements from the Oxidant and Particulate Processes Above a South East Asian Rainforest project, performed from ground and airborne measurement platforms in and around the rainforest of Borneo, South-East Asia. Unlike the previous tropical studies, this allows for the characterisation of a region of mixed terrestrial and marine biogenic emissions. The region is also undergoing rapid land use change, with forest being converted for agriculture, particularly the cultivation of oil palms. This study also allows for the characterisation of a region that is beginning to undergo land use change, providing insight into emissions from different land use types, and providing a benchmark to measure the effects of land use change against in the future.Total sub-micron aerosol loadings were found to be lower than studies in the northern mid-latitudes, similar to previous tropical studies. However, aerosol composition was different to that observed in Amazonia, with much greater sulphate loadings in Borneo. A regional background of sulphate and highly oxidised organic aerosol was identified, with organic aerosol that is less oxidised originating inland. Aerosol confined to a shallow marine boundary layer upwind of Borneo is lofted higher into the troposphere as it advects across the island, with regional aerosol being removed and biogenic terrestrial aerosol added. The lofting of this aerosol is expected to extend its atmospheric lifetime and change its role in the Earth's radiative budget. A novel organic aerosol signal was identified which correlated with gas phase isoprene oxidation products, strongly suggesting that it was significant of isoprene SOA. Aerosol associated with this signal made up a substantial fraction of the organic aerosol loading. This opens up the opportunity for future studies to make isoprene SOA measurements using the Aerosol Mass Spectrometer in other studies. A substantial amount of the organic aerosol in Borneo was attributed to isoprene oxidation.

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Kroc, Jonathan Fleming. "Tucson's Rainforest: Data Processing for Tracing Carbon in Soil, Plants, and Atmosphere in the Tropical Rainforest of Biosphere 2". Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/323455.

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Libros sobre el tema "Rainforest"

ill, Wilson Anne 1974, ed. Rainforest day, rainforest night. Cambridge, MA: Barefoot Books, 2010.

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Morris, Ting. Rainforest. North Mankato, MN: Sea to Sea Publications, 2006.

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Rainforest. 2^a ed. New York: Backpack Books, 2006.

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Paul, Harrison. Rainforest. London: Franklin Watts, 2011.

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Jim, Frazier y Egerton Louise, eds. Rainforest. Frenchs Forest, NSW, Australia: Reed, 1989.

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Chessen, Betsey. Rainforest. New York: Scholastic, 1998.

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Diski, Jenny. Rainforest. London: Methuen, 1987.

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Bruce Coleman Wildlife & Travel Photo Collection., ed. Rainforest. London: Ted Smart, 2002.

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Lynch, Annabelle. Rainforest. London: Franklin Watts, 2013.

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Chessen, Betsey. Rainforest. New York: Scholastic, 1998.

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Capítulos de libros sobre el tema "Rainforest"

Staeck, Lothar. "The Rainforest". En Fascination Amazon River, 77–106. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64452-2_5.

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"RAINFOREST". En State Of Earth Atlas, 22–23. Routledge, 2006. http://dx.doi.org/10.4324/9780203168738-10.

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"temperate rainforest". En Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1377. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_200419.

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"Tropical Rainforest". En Dictionary of Geotourism, 646. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-2538-0_2609.

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Waide, R. B. "Tropical Rainforest". En Encyclopedia of Ecology, 3625–29. Elsevier, 2008. http://dx.doi.org/10.1016/b978-008045405-4.00333-5.

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Waide, R. B. "Tropical Rainforest". En Encyclopedia of Ecology, 679–83. Elsevier, 2008. http://dx.doi.org/10.1016/b978-0-444-63768-0.00333-4.

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Davies, Christopher. "Rainforest Jungle". En Creating Multi-sensory Environments, 43–48. Routledge, 2019. http://dx.doi.org/10.4324/9780429469411-9.

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"RAINFOREST SNAKES". En Wildlife of Madagascar, 244–45. Princeton University Press, 2016. http://dx.doi.org/10.1515/9781400880676-093.

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Plotkin, Mark J. "Introduction". En The Amazon. Oxford University Press, 2020. http://dx.doi.org/10.1093/wentk/9780190668297.003.0001.

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What is a tropical rainforest? Rainforests occupy a special place in the imagination. Literary, historical, and cinematic depictions range from a ghastly green hell to an idyllic Garden of Eden. In terms of fiction, they fired the already fervent imaginations of storytellers as diverse as...

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Dauvergne, Peter. "Fighting for the Rainforests". En Environmentalism of the Rich. The MIT Press, 2016. http://dx.doi.org/10.7551/mitpress/9780262034951.003.0008.

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To further the understanding of the diversity and complexity of environmentalism, chapter 8 opens with the story of Bruno Manser, who in the 1980s left Switzerland to live with the Penan people in Sarawak, Malaysia. Before long he had joined with the Penan to oppose the logging of Borneo’s rainforests; in the 1990s he would emerge from Sarawak and bring the plight of the Penan to the world’s attention. Manser fought against the moderating tendencies within rainforest activism. Yet, as is true across the mainstream of environmentalism, these moderating tendencies within rainforest activism have only strengthened since 2000, with increasing support from nongovernmental certification organizations to export rainforest products. Examples include the Forest Stewardship Council (founded 1993) and the Roundtable on Sustainable Palm Oil (founded 2004). As Manser worried, however, over the past two decades these market mechanisms have done little to help indigenous forest peoples or end tropical deforestation.

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Actas de conferencias sobre el tema "Rainforest"

Beyls, Peter y Andre Perrotta. "Rainforest". En CHI'16: CHI Conference on Human Factors in Computing Systems. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2851581.2891090.

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Connors, Betsy A. "Lightforest: the holographic rainforest". En Electronic Imaging '97, editado por Stephen A. Benton y T. John Trout. SPIE, 1997. http://dx.doi.org/10.1117/12.271367.

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Selking, Ryan Thomas. "A comparison of spider family diversity on vegetation between primary rainforest and secondary rainforest". En 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.117465.

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Zaman, Tariq, Heike Winschiers-Theophilus, Alvin W. Yeo, Lai Chiu Ting y Garen Jengan. "Reviving an indigenous rainforest sign language". En the Seventh International Conference. New York, New York, USA: ACM Press, 2015. http://dx.doi.org/10.1145/2737856.2737885.

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do Nascimento, Barbara Proença. "Insect galls from the Amazonian rainforest". En 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105246.

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Hutton, W. C. y M. M. Skaggs. "Renewable Resource Development in the Ecuadorian Rainforest". En SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1995. http://dx.doi.org/10.2118/30684-ms.

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Thurber, M. W. y G. H. Abad. "Rainforest Connectivity Strategies for Oil and Gas Development". En SPE International Conference and Exhibition on Health, Safety, Security, Environment, and Social Responsibility. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/179196-ms.

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Guillen, Gwennael. "Progressive reclamation in a tropical rainforest – French Guiana". En Sixth International Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2011. http://dx.doi.org/10.36487/acg_rep/1152_26_guillen.

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Thurber, Mark William, Peter William Ayarza y _. OEPC. "Canopy Bridges along a Rainforest Pipeline in Ecuador". En SPE Asia Pacific Health, Safety and Environment Conference and Exhibition. Society of Petroleum Engineers, 2005. http://dx.doi.org/10.2118/96504-ms.

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Muddiman, Benjamin, Henry Thomas, Henry Thomas, Sydney Booth, Sydney Booth, Ivo Duijnstee, Ivo Duijnstee, Cynthia Looy y Cynthia Looy. "ECOSYSTEM ENGINEERING FEEDBACK AND THE CARBONIFEROUS RAINFOREST COLLAPSE". En GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-382982.

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Informes sobre el tema "Rainforest"

Amanda Hoepfner, Amanda Hoepfner. Can orangutan vocalizations signal rainforest condition? Experiment, agosto de 2014. http://dx.doi.org/10.18258/3298.

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Assunção, Juliano, Robert McMillan, Joshua Murphy y Eduardo Souza-Rodrigues. Optimal Environmental Targeting in the Amazon Rainforest. Cambridge, MA: National Bureau of Economic Research, marzo de 2019. http://dx.doi.org/10.3386/w25636.

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James Askew, James Askew. What Animals Live in Disturbed Sumatran Rainforest? A Camera Trap Study. Experiment, septiembre de 2014. http://dx.doi.org/10.18258/3400.

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Patrick Gonzalez, Antonio Lara, Jorge Gayoso, Eduardo Neira, Patricio Romero y Leonardo Sotomayor. COMPARISON OF THREE METHODS TO PROJECT FUTURE BASELINE CARBON EMISSIONS IN TEMPERATE RAINFOREST, CURINANCO, CHILE. Office of Scientific and Technical Information (OSTI), julio de 2005. http://dx.doi.org/10.2172/843087.

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Hirota, Marina, Carlos A. Nobre, Ane Alencar, Julia Areiera, Francisco de Assis Costa, Bernardo Flores, Clarissa Gandour et al. Policy Brief: A call for global action to move the Amazon rainforest system away from tipping points. Sustainable Development Solutions Network (SDSN), noviembre de 2022. http://dx.doi.org/10.55161/jvyw3199.

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Global climate change, the conversion of large areas of tropical forest to agriculture and rangelands, and forest degradation driven by wildfires are pushing the Amazon towards irreversible thresholds, often called tipping points. We need an immediate deforestation moratorium in areas more likely to cross a tipping point (e.g., Southern Amazon), and in protected areas and Indigenous territories; so that there is zero deforestation in the Amazon by 2030.

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Patrick Gonzalez, Benjamin Kroll y Carlos R. Vargas. Forest Restoration Carbon Analysis of Baseline Carbon Emissions and Removal in Tropical Rainforest at La Selva Central, Peru. Office of Scientific and Technical Information (OSTI), enero de 2006. http://dx.doi.org/10.2172/876495.

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Beekman, G., M. Dekkers y T. Koster. Towards a sustainable banana supply chain in Colombia : Rainforest Alliance Certification and economic, social and environment conditions on small-scale banana plantations in Magdalena, Colombia. Wageningen: Wageningen Economic Research, 2019. http://dx.doi.org/10.18174/466678.

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McGee, Steven, Jennifer Kirby, Geneva Haertel y Angela Haydel DeBarger. Taking students on a journey to El Yunque: An examination of cognitive apprenticeship. The Learning Partnership, abril de 2006. http://dx.doi.org/10.51420/conf.2006.1.

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The Journey to El Yunque program was designed using the cognitive apprenticeship model. Students analyze the same data that scientists in the rainforest use for their research, while at the same time, covering all of the national middle school ecology standards. In this study we seek to build a framework that integrates design-based research methods with traditional evaluation. The resulting enactment of the curriculum provides formative feedback about the curriculum as well as about the design model itself. An ecology assessment was developed using publicly released state assessment items. A quasiexperimental design study was used to evaluate the effectiveness of the beta version of the program. The results show that Journey to El Yunque was more effective at helping students learn population dynamics, while the traditional ecology curriculum was more effective at helping students understand energy flow definitions. This difference in performance is consistent with the underlying design based on the cognitive apprenticeship model.

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Touzi, R. y A. Sasitiwarih. On the Use of Radarsat and JERS-1 Satellite SARs for Trail and Road Detection in Tropical Rainforests. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/219360.

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