Log in

Relevant bibliographies by topics / Ecosystème tropical / Journal articles

To see the other types of publications on this topic, follow the link: Ecosystème tropical.

Journal articles on the topic 'Ecosystème tropical'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ecosystème tropical.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

França, Filipe M., Cassandra E. Benkwitt, Guadalupe Peralta, et al. "Climatic and local stressor interactions threaten tropical forests and coral reefs." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1794 (2020): 20190116. http://dx.doi.org/10.1098/rstb.2019.0116.

Full text

Abstract:

Tropical forests and coral reefs host a disproportionately large share of global biodiversity and provide ecosystem functions and services used by millions of people. Yet, ongoing climate change is leading to an increase in frequency and magnitude of extreme climatic events in the tropics, which, in combination with other local human disturbances, is leading to unprecedented negative ecological consequences for tropical forests and coral reefs. Here, we provide an overview of how and where climate extremes are affecting the most biodiverse ecosystems on Earth and summarize how interactions bet

APA, Harvard, Vancouver, ISO, and other styles

2

Griffith, Daniel M., Caroline E. R. Lehmann, Caroline A. E. Strömberg, et al. "Comment on “The extent of forest in dryland biomes”." Science 358, no. 6365 (2017): eaao1309. http://dx.doi.org/10.1126/science.aao1309.

Full text

Abstract:

Bastin et al. (Reports, 12 May 2017, p. 635) infer forest as more globally extensive than previously estimated using tree cover data. However, their forest definition does not reflect ecosystem function or biotic composition. These structural and climatic definitions inflate forest estimates across the tropics and undermine conservation goals, leading to inappropriate management policies and practices in tropical grassy ecosystems.

APA, Harvard, Vancouver, ISO, and other styles

3

Mastura Rosli, Farah, Anizah Salleh, Widad Fadhlullah, Mahamad Hakimi Ibrahim, and Norizan Esa. "Tropical Wetland Valuation: An influence of local knowledge in Malay traditional ecosystem for human well-being." SHS Web of Conferences 45 (2018): 03002. http://dx.doi.org/10.1051/shsconf/20184503002.

Full text

Abstract:

Tropical wetlands are among the most productive ecosystems on earth which provide vital services and consist of various types of plant and animal communities that live in the water and on land. However, this golden area is one of the most undervalued ecosystems and the awareness on protecting the areas is still lacking among communities. The aim of this study was to review the wetland services in a tropical climate which functions to complete the ecosystem. In particular, this study will i) explore the values of wetland ecosystem towards human well-being in tropical culture and ii) to design a

APA, Harvard, Vancouver, ISO, and other styles

4

Clarke, David A., Paul H. York, Michael A. Rasheed, and Tobin D. Northfield. "Does Biodiversity–Ecosystem Function Literature Neglect Tropical Ecosystems?" Trends in Ecology & Evolution 32, no. 5 (2017): 320–23. http://dx.doi.org/10.1016/j.tree.2017.02.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Schindler, D. E. "Fish extinctions and ecosystem functioning in tropical ecosystems." Proceedings of the National Academy of Sciences 104, no. 14 (2007): 5707–8. http://dx.doi.org/10.1073/pnas.0700426104.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Santos, Marcos Paulo dos, Alencar Zanon Junior, Santiago Vianna Cuadra, Silvio Steinmetz, João Rodrigo de Castro, and Alexandre Bryan Heinemann. "Yield and morphophysiological indices of irrigated rice genotypes in contrasting ecosystems1." Pesquisa Agropecuária Tropical 47, no. 3 (2017): 253–64. http://dx.doi.org/10.1590/1983-40632016v4745955.

Full text

Abstract:

ABSTRACT Rice phenology and development are events controlled by environmental and genetic factors, and the yield potential of the crop is defined by their interaction. This study aimed at analyzing the performance of irrigated rice genotypes in contrasting ecosystems and their effects on morphophysiological characteristics. Two ecosystems (tropical and subtropical) were analyzed, as well as cultivars recommended for tropical (BRS Catiana and BRS Jaçanã) and subtropical (BRS Pampa, BRS 7 Taim and IRGA 424) regions. The experiments were arranged in a complete randomized block design, with four

APA, Harvard, Vancouver, ISO, and other styles

7

Hogan, J. Aaron, Rusty A. Feagin, Gregory Starr, et al. "A Research Framework to Integrate Cross-Ecosystem Responses to Tropical Cyclones." BioScience 70, no. 6 (2020): 477–89. http://dx.doi.org/10.1093/biosci/biaa034.

Full text

Abstract:

Abstract Tropical cyclones play an increasingly important role in shaping ecosystems. Understanding and generalizing their responses is challenging because of meteorological variability among storms and its interaction with ecosystems. We present a research framework designed to compare tropical cyclone effects within and across ecosystems that: a) uses a disaggregating approach that measures the responses of individual ecosystem components, b) links the response of ecosystem components at fine temporal scales to meteorology and antecedent conditions, and c) examines responses of ecosystem usi

APA, Harvard, Vancouver, ISO, and other styles

8

Baca, Bart, Eric Rosch, Erik D. DeMicco, and Paul A. Schuler. "TROPICS: 30-year Follow-up and Analysis of Mangroves, Invertebrates, and Hydrocarbons." International Oil Spill Conference Proceedings 2014, no. 1 (2014): 1734–48. http://dx.doi.org/10.7901/2169-3358-2014.1.1734.

Full text

Abstract:

ABSTRACT TROPICS (TRopical Oil Pollution Investigations in Coastal Systems) has been the seminal study on trade-offs for Net Environmental Benefit Analysis (NEBA) for dispersant use in tropical ecosystems. The study began in 1983/84 with the identification of suitable tropical island sites in Bahia Almirante, Bocas del Toro, Panama that contained mangrove, seagrass and coral habitats in close enough proximity to establish three 30m X 30m test sites. Controlled releases of Prudhoe Bay crude oil (dosed at 1L/m2) and Prudhoe Bay crude oil pre-dispersed with Corexit 9527 (to maintain 50 ppm water

APA, Harvard, Vancouver, ISO, and other styles

9

Bloom, A. Anthony, Kevin W. Bowman, Junjie Liu, et al. "Lagged effects regulate the inter-annual variability of the tropical carbon balance." Biogeosciences 17, no. 24 (2020): 6393–422. http://dx.doi.org/10.5194/bg-17-6393-2020.

Full text

Abstract:

Abstract. Inter-annual variations in the tropical land carbon (C) balance are a dominant component of the global atmospheric CO2 growth rate. Currently, the lack of quantitative knowledge on processes controlling net tropical ecosystem C balance on inter-annual timescales inhibits accurate understanding and projections of land–atmosphere C exchanges. In particular, uncertainty on the relative contribution of ecosystem C fluxes attributable to concurrent forcing anomalies (concurrent effects) and those attributable to the continuing influence of past phenomena (lagged effects) stifles efforts t

APA, Harvard, Vancouver, ISO, and other styles

10

Sarathchandra, Chaya, Yirga Alemu Abebe, Iresha Lakmali Wijerathne, Sasith Tharanga Aluthwattha, Sriyani Wickramasinghe, and Zhiyun Ouyang. "An Overview of Ecosystem Service Studies in a Tropical Biodiversity Hotspot, Sri Lanka: Key Perspectives for Future Research." Forests 12, no. 5 (2021): 540. http://dx.doi.org/10.3390/f12050540.

Full text

Abstract:

Tropical island countries are often highly populated and deliver immense ecosystem service benefits. As human wellbeing depends on these ecosystems, proper management is crucial in the resource-rich tropical lands where there is less related research. Though ecosystem service and biodiversity studies are a promising path to inform the ecosystem management for these mostly developing countries, published evidence of using ecosystem service studies in decision making is lacking. The purpose of this study is to provide an overview of ecosystem services and related research in Sri Lanka, examining

APA, Harvard, Vancouver, ISO, and other styles

11

Catarino, Luís, and Maria M. Romeiras. "Biodiversity of Vegetation and Flora in Tropical Africa." Diversity 12, no. 10 (2020): 369. http://dx.doi.org/10.3390/d12100369.

Full text

Abstract:

African ecosystems comprise a wealthy repository of biodiversity with a high proportion of native and endemic plant species, which makes them biologically unique and providers of a wide range of ecosystem services. A large part of African populations, in both rural and urban areas, depends on plants for their survival and welfare, but many ecosystems are being degraded, mostly due to the growing impacts of climate change and other anthropogenic actions and environmental problems. Loss of habitat and biodiversity affects livelihoods, water supply and food security, and reduces the resilience of

APA, Harvard, Vancouver, ISO, and other styles

12

Kozlov, Mikhail V., and Elena L. Zvereva. "Changes in the background losses of woody plant foliage to insects during the past 60 years: are the predictions fulfilled?" Biology Letters 11, no. 7 (2015): 20150480. http://dx.doi.org/10.1098/rsbl.2015.0480.

Full text

Abstract:

The existing scenarios generally predict that herbivory will increase with climate warming. An analysis of the published data on the background foliar losses of woody plants to insects in natural ecosystems across the globe from 1952 to 2013 provided no support for this hypothesis. We detected no temporal trend in herbivory within the temperate climate zone and a significant decrease in herbivory in the tropics. From 1964 to 1990, herbivory in the tropics was 39% higher than in the temperate region, but these differences disappeared by the beginning of the 2000s. Thus, environmental changes ha

APA, Harvard, Vancouver, ISO, and other styles

13

Brodie, Jedediah F., and Peter B. McIntyre. "Bushmeat biogeochemistry: hunting tropical mammals alters ecosystem phosphorus budgets." Proceedings of the Royal Society B: Biological Sciences 286, no. 1907 (2019): 20190966. http://dx.doi.org/10.1098/rspb.2019.0966.

Full text

Abstract:

Wild meat (or ‘bushmeat’) hunting is nearly ubiquitous across the tropics and is very often unsustainable—driving declines and extirpation of numerous mammal populations. Loss of these animals can alter the transport of nutrients within and between ecosystems. But whether the physical removal of vertebrate carcasses and the nutrients that they store can reduce overall nutrient availability in ecosystems has been little explored. At 32 sites on three continents, we show that annual phosphorus (P) loss via mammal exploitation was low relative to the rate of atmospheric P deposition. But at four

APA, Harvard, Vancouver, ISO, and other styles

14

Byrom, Andrea E., Ally J. K. Nkwabi, Kristine Metzger, et al. "Anthropogenic stressors influence small mammal communities in tropical East African savanna at multiple spatial scales." Wildlife Research 42, no. 2 (2015): 119. http://dx.doi.org/10.1071/wr14223.

Full text

Abstract:

Context Protection of natural ecosystems undoubtedly safeguards ecological communities, with positive benefits for ecosystem processes and function. However, ecosystems are under threat from anthropogenic stressors that reduce the resilience both of component species and the system as a whole. Aims To determine how anthropogenic stressors (land use and climate change) could impact the diversity and resilience of a small mammal community in the greater Serengeti ecosystem, an East African savanna comprising Serengeti National Park (SNP) and adjacent agro-ecosystems, at local (SNP) and Africa-wi

APA, Harvard, Vancouver, ISO, and other styles

15

Clark, Deborah A., Shinichi Asao, Rosie Fisher, et al. "Reviews and syntheses: Field data to benchmark the carbon cycle models for tropical forests." Biogeosciences 14, no. 20 (2017): 4663–90. http://dx.doi.org/10.5194/bg-14-4663-2017.

Full text

Abstract:

Abstract. For more accurate projections of both the global carbon (C) cycle and the changing climate, a critical current need is to improve the representation of tropical forests in Earth system models. Tropical forests exchange more C, energy, and water with the atmosphere than any other class of land ecosystems. Further, tropical-forest C cycling is likely responding to the rapid global warming, intensifying water stress, and increasing atmospheric CO2 levels. Projections of the future C balance of the tropics vary widely among global models. A current effort of the modeling community, the I

APA, Harvard, Vancouver, ISO, and other styles

16

Long, Kelsie E., Larissa Schneider, Simon E. Connor, et al. "Human impacts and Anthropocene environmental change at Lake Kutubu, a Ramsar wetland in Papua New Guinea." Proceedings of the National Academy of Sciences 118, no. 40 (2021): e2022216118. http://dx.doi.org/10.1073/pnas.2022216118.

Full text

Abstract:

The impacts of human-induced environmental change that characterize the Anthropocene are not felt equally across the globe. In the tropics, the potential for the sudden collapse of ecosystems in response to multiple interacting pressures has been of increasing concern in ecological and conservation research. The tropical ecosystems of Papua New Guinea are areas of diverse rainforest flora and fauna, inhabited by human populations that are equally diverse, both culturally and linguistically. These people and the ecosystems they rely on are being put under increasing pressure from mineral resour

APA, Harvard, Vancouver, ISO, and other styles

17

Moore, Caitlin E., Tim Brown, Trevor F. Keenan, et al. "Reviews and syntheses: Australian vegetation phenology: new insights from satellite remote sensing and digital repeat photography." Biogeosciences 13, no. 17 (2016): 5085–102. http://dx.doi.org/10.5194/bg-13-5085-2016.

Full text

Abstract:

Abstract. Phenology is the study of periodic biological occurrences and can provide important insights into the influence of climatic variability and change on ecosystems. Understanding Australia's vegetation phenology is a challenge due to its diverse range of ecosystems, from savannas and tropical rainforests to temperate eucalypt woodlands, semi-arid scrublands, and alpine grasslands. These ecosystems exhibit marked differences in seasonal patterns of canopy development and plant life-cycle events, much of which deviates from the predictable seasonal phenological pulse of temperate deciduou

APA, Harvard, Vancouver, ISO, and other styles

18

Ashton, L. A., H. M. Griffiths, C. L. Parr, et al. "Termites mitigate the effects of drought in tropical rainforest." Science 363, no. 6423 (2019): 174–77. http://dx.doi.org/10.1126/science.aau9565.

Full text

Abstract:

Termites perform key ecological functions in tropical ecosystems, are strongly affected by variation in rainfall, and respond negatively to habitat disturbance. However, it is not known how the projected increase in frequency and severity of droughts in tropical rainforests will alter termite communities and the maintenance of ecosystem processes. Using a large-scale termite suppression experiment, we found that termite activity and abundance increased during drought in a Bornean forest. This increase resulted in accelerated litter decomposition, elevated soil moisture, greater soil nutrient h

APA, Harvard, Vancouver, ISO, and other styles

19

Crespin, Silvio J., and Javier A. Simonetti. "Predicting ecosystem collapse: Spatial factors that influence risks to tropical ecosystems." Austral Ecology 40, no. 4 (2015): 492–501. http://dx.doi.org/10.1111/aec.12209.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Clark, Deborah A. "Sources or sinks? The responses of tropical forests to current and future climate and atmospheric composition." Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 359, no. 1443 (2004): 477–91. http://dx.doi.org/10.1098/rstb.2003.1426.

Full text

Abstract:

How tropical rainforests are responding to the ongoing global changes in atmospheric composition and climate is little studied and poorly understood. Although rising atmospheric carbon dioxide (CO 2 ) could enhance forest productivity, increased temperatures and drought are likely to diminish it. The limited field data have produced conflicting views of the net impacts of these changes so far. One set of studies has seemed to point to enhanced carbon uptake; however, questions have arisen about these findings, and recent experiments with tropical forest trees indicate carbon saturation of cano

APA, Harvard, Vancouver, ISO, and other styles

21

Renegar, D. Abigail, Paul Schuler, Nicholas Turner, et al. "TROPICS FIELD STUDY (PANAMA), 32-YEAR SITE VISIT: OBSERVATIONS AND CONCLUSIONS FOR NEAR SHORE DISPERSANT USE NEBA AND TRADEOFFS." International Oil Spill Conference Proceedings 2017, no. 1 (2017): 3030–50. http://dx.doi.org/10.7901/2169-3358-2017.1.3030.

Full text

Abstract:

ABSTRACT (#2017-141) The Tropical Oil Pollution Investigations in Coastal Systems (TROPICS) experiment initiated in 1984 on the Caribbean coast of Panama has become one of the most comprehensive field experiments examining effects of oil exposure to a combination of tropical marine reef, seagrass, and mangrove communities. The experimental dosage was chosen to simulate a severe but realistic spill scenario so that results could be useful in decisions about the extent to which dispersants reduced or exacerbated the effects of an oil spill on tropical environments of mangroves, seagrasses, and c

APA, Harvard, Vancouver, ISO, and other styles

22

Baca, Bart, Greg A. Ward, Christine H. Lane, and Paul A. Schuler. "NET ENVIRONMENTAL BENEFIT ANALYSIS (NEBA) OF DISPERSED OIL ON NEARSHORE TROPICAL ECOSYSTEMS DERIVED FROM THE 20 YEAR “TROPICS” FIELD STUDY1." International Oil Spill Conference Proceedings 2005, no. 1 (2005): 453–56. http://dx.doi.org/10.7901/2169-3358-2005-1-453.

Full text

Abstract:

ABSTRACT In November 1984, non-treated Prudhoe Bay crude oil and dispersed Prudhoe Bay crude oil were intentionally released into two separate sites, representative of near shore mangrove, seagrass and coral ecosystems, as part of the TRopical Oil Pollution Investigations in Coastal Systems (TROPICS) field study in Bahia de Almirante, Panama. Data on the relative effects of non-treated crude oil and dispersed crude oil on these ecosystems (compared to a reference site) were acquired and analyzed over various periods (30 days, 3 months, and 2.6, 10, 17, 18, and 20 years). In the short term, the

APA, Harvard, Vancouver, ISO, and other styles

23

López-Ramírez, Martín A. "Forest ecosystem services in the tropics: an imperfect assessment of their contribution to welfare, and environmental policy implications." Revista Chapingo Serie Ciencias Forestales y del Ambiente 27, no. 1 (2020): 89–107. http://dx.doi.org/10.5154/r.rchscfa.2020.04.025.

Full text

Abstract:

Introduction: The specific relation between ecosystem services (ES), land use systems productivity and welfare is complex and poorly understood.Objective: To analyze the relationship between natural capital and welfare in the Agriculture, Forestry and Other Land Use (AFOLU) sector to assess Ecosystem Services contribution to agriculture, forestry and fishing value added (GDP [Gross Domestic Product]) and analyze policy implications.Materials and methods: Using land use allocation variables, forest transition model and land use GDP for 97 tropical countries, the production function of AFOLU sec

APA, Harvard, Vancouver, ISO, and other styles

24

Gotsch, Sybil G., Heidi Asbjornsen, and Gregory R. Goldsmith. "Plant carbon and water fluxes in tropical montane cloud forests." Journal of Tropical Ecology 32, no. 5 (2016): 404–20. http://dx.doi.org/10.1017/s0266467416000341.

Full text

Abstract:

Abstract:Tropical montane cloud forests (TMCFs) are dynamic ecosystems defined by frequent, but intermittent, contact with fog. The resultant microclimate can vary considerably over short spatial and temporal scales, affecting the ecophysiology of TMCF plants. We synthesized research to date on TMCF carbon and water fluxes at the scale of the leaf, plant and ecosystem and then contextualized this synthesis with tropical lowland forest ecosystems. Mean light-saturated photosynthesis was lower than that of lowland forests, probably due to the effects of persistent reduced radiation leading to sh

APA, Harvard, Vancouver, ISO, and other styles

25

Necchi, Orlando Jr, and João C. L. Moreira. "Longitudinal distribution of macroalgae in two tropical lotic ecosystems from southeastern Brazil." Archiv für Hydrobiologie 135, no. 1 (1995): 113–28. http://dx.doi.org/10.1127/archiv-hydrobiol/135/1995/113.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Jaganathan, Ganesh K., Danping Song, and Baolin Liu. "Diversity and distribution of physical dormant species in relation to ecosystem and life-forms." Plant Science Today 4, no. 2 (2017): 55. http://dx.doi.org/10.14719/pst.2017.4.2.293.

Full text

Abstract:

Impermeable seed/fruit coat, i.e. physical dormancy (PY) occurring only in several genera of 18 angiosperm families plays an important role in controlling seed persistence and germination timing. It has been theoretically speculated that PY is more prevalent in drylands than in moist vegetation zones, but unequivocal support for this assertion is currently unavailable. The broad objective of this contribution was to examine the distribution of PY on the various vegetation of tropics and temperate ecosystems using a data set of 13, 792 species. The number of species with PY in tropics (19%) is

APA, Harvard, Vancouver, ISO, and other styles

27

Aguilos, Maricar, Clément Stahl, Benoit Burban, et al. "Interannual and Seasonal Variations in Ecosystem Transpiration and Water Use Efficiency in a Tropical Rainforest." Forests 10, no. 1 (2018): 14. http://dx.doi.org/10.3390/f10010014.

Full text

Abstract:

Warmer and drier climates over Amazonia have been predicted for the next century with expected changes in regional water and carbon cycles. We examined the impact of interannual and seasonal variations in climate conditions on ecosystem-level evapotranspiration (ET) and water use efficiency (WUE) to determine key climatic drivers and anticipate the response of these ecosystems to climate change. We used daily climate and eddyflux data recorded at the Guyaflux site in French Guiana from 2004 to 2014. ET and WUE exhibited weak interannual variability. The main climatic driver of ET and WUE was g

APA, Harvard, Vancouver, ISO, and other styles

28

Robinson, Eugene S., Xi Yang, and Jung-Eun Lee. "Ecosystem Productivity and Water Stress in Tropical East Africa: A Case Study of the 2010–2011 Drought." Land 8, no. 3 (2019): 52. http://dx.doi.org/10.3390/land8030052.

Full text

Abstract:

Characterizing the spatiotemporal patterns of ecosystem responses to drought is important in understanding the impact of water stress on tropical ecosystems and projecting future land cover transitions in the East African tropics. Through the analysis of satellite measurements of solar-induced chlorophyll fluorescence (SIF) and the normalized difference vegetation index (NDVI), soil moisture, rainfall, and reanalysis data, here we characterize the 2010–2011 drought in tropical East Africa. The 2010–2011 drought included the consecutive failure of rainy seasons in October–November–December 2010

APA, Harvard, Vancouver, ISO, and other styles

29

Bousquet, P., B. Ringeval, I. Pison, et al. "Source attribution of the changes in atmospheric methane for 2006–2008." Atmospheric Chemistry and Physics 11, no. 8 (2011): 3689–700. http://dx.doi.org/10.5194/acp-11-3689-2011.

Full text

Abstract:

Abstract. The recent increase of atmospheric methane is investigated by using two atmospheric inversions to quantify the distribution of sources and sinks for the 2006–2008 period, and a process-based model of methane emissions by natural wetland ecosystems. Methane emissions derived from the two inversions are consistent at a global scale: emissions are decreased in 2006 (−7 Tg) and increased in 2007 (+21 Tg) and 2008 (+18 Tg), as compared to the 1999–2006 period. The agreement on the latitudinal partition of the flux anomalies for the two inversions is fair in 2006, good in 2007, and not goo

APA, Harvard, Vancouver, ISO, and other styles

30

Hao, Jiewei, and L. M. Chu. "Vegetation Types Attributed to Deforestation and Secondary Succession Drive the Elevational Changes in Diversity and Distribution of Terrestrial Mosses in a Tropical Mountain Forest in Southern China." Forests 12, no. 8 (2021): 961. http://dx.doi.org/10.3390/f12080961.

Full text

Abstract:

(1) Background: Detailed diversity information regarding terrestrial mosses in a tropical forest ecosystem and an understanding of the drivers behind moss distribution provide crucial data for the management and conservation of forest ecosystems. Mosses are critical components of tropical forest ecosystems due to their high diversity and biomass, and they also fulfill essential ecological functions. Here, we report the first study into the relative importance of vegetation types and elevational gradient for the diversity, distribution and community structure of terrestrial moss species in sout

APA, Harvard, Vancouver, ISO, and other styles

31

Nightingale, J. M., S. R. Phinn, and A. A. Held. "Ecosystem process models at multiple scales for mapping tropical forest productivity." Progress in Physical Geography: Earth and Environment 28, no. 2 (2004): 241–81. http://dx.doi.org/10.1191/0309133304pp411ra.

Full text

Abstract:

Quantifying mass and energy exchanges within tropical forests is essential for understanding their role in the global carbon budget and how they will respond to perturbations in climate. This study reviews ecosystem process models designed to predict the growth and productivity of temperate and tropical forest ecosystems. Temperate forest models were included because of the minimal number of tropical forest models. The review provides a multiscale assessment enabling potential users to select a model suited to the scale and type of information they require in tropical forests. Process models a

APA, Harvard, Vancouver, ISO, and other styles

32

Thung, Do Cong, Nguyen Dang Ngai, Dau Van Thao, Nguyen Van Sinh, and Dao Minh Dong. "Marine biodiversity in Ha Long bay and Cat Ba archipelago." Tạp chí Khoa học và Công nghệ biển 19, no. 3 (2019): 363–69. http://dx.doi.org/10.15625/1859-3097/19/3/13174.

Full text

Abstract:

Ha Long bay - Cat Ba island located in the Northeast of Vietnam, in the area of Ha Long city (Quang Ninh province) and Cat Hai island district (Hai Phong city) is the largest limestone island in Vietnam. Features of biodiversity include the seven typical ecosystems of tropical limestone islands, namely tropical rainforest ecosystem, cave ecosystem, mangrove ecosystem, tidal ecosystem, coral reef ecosystem, soft-bottom ecosystem. Ha Long - Cat Ba also represents a high level of species diversity with 4,622 species of plants and animals on land and in the sea. In particular, on land there are 2,

APA, Harvard, Vancouver, ISO, and other styles

33

Alongi, Daniel M. "Global Significance of Mangrove Blue Carbon in Climate Change Mitigation." Sci 2, no. 3 (2020): 67. http://dx.doi.org/10.3390/sci2030067.

Full text

Abstract:

Mangrove forests store and sequester large area-specific quantities of blue carbon (Corg). Except for tundra and peatlands, mangroves store more Corg per unit area than any other ecosystem. Mean mangrove Corg stock is 738.9 Mg Corg ha−1 and mean global stock is 6.17 Pg Corg, which equates to only 0.4–7% of terrestrial ecosystem Corg stocks but 17% of total tropical marine Corg stocks. Per unit area, mangroves sequester 179.6 g Corg m−2a−1 and globally about 15 Tg Corg a−1. Mangroves sequester only 4% (range 1.3–8%) of Corg sequestered by terrestrial ecosystems, indicating that mangroves are a

APA, Harvard, Vancouver, ISO, and other styles

34

Friess, Daniel A. "Tropical wetlands and REDD+: Three unique scientific challenges for policy." International Journal of Rural Law and Policy, no. 1 (July 7, 2013): 1–6. http://dx.doi.org/10.5130/ijrlp.i1.2013.3258.

Full text

Abstract:

The carbon sequestration and storage value of terrestrial habitats is now increasingly appreciated, and is the basis for Payment for Ecosystem Service (PES) policies such as REDD+. Tropical wetlands may be suitable for inclusion in such schemes because of the disproportionately large volume of carbon they are able to store. However, tropical wetlands offer a number of unique challenges for carbon management and policy compared to terrestrial forest systems: 1) Tropical wetlands are dynamic and subject to a wide range of physical and ecological processes that affect their long-term carbon stora

APA, Harvard, Vancouver, ISO, and other styles

35

Kolding, Jeppe, Alida Bundy, Paul A. M. van Zwieten, and Michael J. Plank. "Fisheries, the inverted food pyramid." ICES Journal of Marine Science 73, no. 6 (2015): 1697–713. http://dx.doi.org/10.1093/icesjms/fsv225.

Full text

Abstract:

Abstract A global assessment of fishing patterns and fishing pressure from 110 different Ecopath models, representing marine ecosystems throughout the world and covering the period 1970–2007, show that human exploitation across trophic levels (TLs) is highly unbalanced and skewed towards low productive species at high TLs, which are around two TLs higher than the animal protein we get from terrestrial farming. Overall, exploitation levels from low trophic species were &lt;15% of production, and only 18% of the total number of exploited groups and species were harvested &gt;40% of their

APA, Harvard, Vancouver, ISO, and other styles

36

Pyron, R. Alexander, and John J. Wiens. "Large-scale phylogenetic analyses reveal the causes of high tropical amphibian diversity." Proceedings of the Royal Society B: Biological Sciences 280, no. 1770 (2013): 20131622. http://dx.doi.org/10.1098/rspb.2013.1622.

Full text

Abstract:

Many groups show higher species richness in tropical regions but the underlying causes remain unclear. Despite many competing hypotheses to explain latitudinal diversity gradients, only three processes can directly change species richness across regions: speciation, extinction and dispersal. These processes can be addressed most powerfully using large-scale phylogenetic approaches, but most previous studies have focused on small groups and recent time scales, or did not separate speciation and extinction rates. We investigate the origins of high tropical diversity in amphibians, applying new p

APA, Harvard, Vancouver, ISO, and other styles

37

Restrepo-Coupe, Natalia, Alfredo Huete, Kevin Davies, et al. "MODIS vegetation products as proxies of photosynthetic potential along a gradient of meteorologically and biologically driven ecosystem productivity." Biogeosciences 13, no. 19 (2016): 5587–608. http://dx.doi.org/10.5194/bg-13-5587-2016.

Full text

Abstract:

Abstract. A direct relationship between gross ecosystem productivity (GEP) estimated by the eddy covariance (EC) method and Moderate Resolution Imaging Spectroradiometer (MODIS) vegetation indices (VIs) has been observed in many temperate and tropical ecosystems. However, in Australian evergreen forests, and particularly sclerophyll and temperate woodlands, MODIS VIs do not capture seasonality of GEP. In this study, we re-evaluate the connection between satellite and flux tower data at four contrasting Australian ecosystems, through comparisons of GEP and four measures of photosynthetic potent

APA, Harvard, Vancouver, ISO, and other styles

38

Restrepo-Coupe, N., A. Huete, K. Davies, et al. "MODIS vegetation products as proxies of photosynthetic potential: a look across meteorological and biologic driven ecosystem productivity." Biogeosciences Discussions 12, no. 23 (2015): 19213–67. http://dx.doi.org/10.5194/bgd-12-19213-2015.

Full text

Abstract:

Abstract. A direct relationship between gross ecosystem productivity (GEP) measured by the eddy covariance (EC) method and Moderate Resolution Imaging Spectroradiometer (MODIS) vegetation indices (VIs) has been observed in many temperate and tropical ecosystems. However, in Australian evergreen forests, and particularly sclerophyll woodlands, MODIS VIs do not capture seasonality of GEP. In this study, we re-evaluate the connection between satellite and flux tower data at four contrasting Australian ecosystems, through comparisons of ecosystem photosynthetic activity (GEP) and potential (e.g. e

APA, Harvard, Vancouver, ISO, and other styles

39

Hernández, José Carlos. "Influencia humana en las fluctuaciones poblacionales de erizos de mar." Revista de Biología Tropical 65, no. 1-1 (2017): 23. http://dx.doi.org/10.15517/rbt.v65i1-1.31663.

Full text

Abstract:

Echinoids play an important role in marine ecosystems structuring. Often, their population density experience markedly fluctuations that promote a state shift in the ecosystems they inhabit. Population increments of some sea urchins may cause catastrophic changes in temperate areas of the planet by decimating the erect macroalgae cover. These population increments results in unproductive and very stable assemblages, known as “blanquizales” (ericeras/moradales), or sea urchin barren ground. Macroalgae are the main ecosystem engineers in temperate areas and generate a suitable nursery and feedin

APA, Harvard, Vancouver, ISO, and other styles

40

Bendix, Jörg, Nicolay Aguire, Erwin Beck, et al. "A research framework for projecting ecosystem change in highly diverse tropical mountain ecosystems." Oecologia 195, no. 3 (2021): 589–600. http://dx.doi.org/10.1007/s00442-021-04852-8.

Full text

Abstract:

AbstractTropical mountain ecosystems are threatened by climate and land-use changes. Their diversity and complexity make projections how they respond to environmental changes challenging. A suitable way are trait-based approaches, by distinguishing between response traits that determine the resistance of species to environmental changes and effect traits that are relevant for species' interactions, biotic processes, and ecosystem functions. The combination of those approaches with land surface models (LSM) linking the functional community composition to ecosystem functions provides new ways to

APA, Harvard, Vancouver, ISO, and other styles

41

Link, Jason S., and Reg A. Watson. "Global ecosystem overfishing: Clear delineation within real limits to production." Science Advances 5, no. 6 (2019): eaav0474. http://dx.doi.org/10.1126/sciadv.aav0474.

Full text

Abstract:

The well-documented value of marine fisheries is threatened by overfishing. Management typically focuses on target populations but lacks effective tools to document or restrain overexploitation of marine ecosystems. Here, we present three indices and accompanying thresholds to detect and delineate ecosystem overfishing (EOF): the Fogarty, Friedland, and Ryther indices. These are based on widely available and readily interpreted catch and satellite data that link fisheries landings to primary production using known limits of trophic transfer efficiency. We propose theoretically and empirically

APA, Harvard, Vancouver, ISO, and other styles

42

Proctor, J., H. Lieth, and M. J. A. Werger. "Tropical Rain Forest Ecosystems." Journal of Ecology 78, no. 1 (1990): 270. http://dx.doi.org/10.2307/2261052.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Chen, Xiaoyong, Derek Eamus, and Lindsay B. Hutley. "Seasonal patterns of fine-root productivity and turnover in a tropical savanna of northern Australia." Journal of Tropical Ecology 20, no. 2 (2004): 221–24. http://dx.doi.org/10.1017/s0266467403001135.

Full text

Abstract:

Fine roots and their turnover represent a dynamic aspect of below-ground biomass (BGB) and nutrient capital in forest ecosystems, and account for a significant fraction of net primary productivity (NPP) (Cuevas 1995, Vogt et al. 1990). On a weight basis, coarse roots contribute more to total ecosystem biomass than fine roots, but they account for only a small portion of annual root production (Eamus et al. 2002). Despite the fact that fine roots may compose less than 2% of total ecosystem biomass, they may contribute up to 40% of total ecosystem production (Vogt et al. 1990). Therefore, estima

APA, Harvard, Vancouver, ISO, and other styles

44

Sandlersky, Robert. "Tropical Monsoon Forest Thermodynamics Based on Remote Sensing Data." Entropy 22, no. 11 (2020): 1226. http://dx.doi.org/10.3390/e22111226.

Full text

Abstract:

This paper addresses thermodynamic variables that characterize the energy balance and structure of the solar energy transformation by the ecosystems of deciduous tropical forests. By analyzing the seasonal dynamics of these variables, two main states of the thermodynamic system are determined: the end of the drought season and the end of the wet season. Two sub-systems of solar energy transformation are also defined: a balance system that is responsible for the moisture transportation between the ecosystem and atmosphere; and a structural bioproductional system responsible for biological produ

APA, Harvard, Vancouver, ISO, and other styles

45

Sagar, R., and Vijay Pratap Gautam. "Impact of Nitrogen Deposition on Tropical Forest Biomass and Carbon Sequestration." INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT 4, no. 02 (2018): 60–67. http://dx.doi.org/10.18811/ijpen.v4i02.7.

Full text

Abstract:

Undoubtedly, nitrogen (N) is an essential component of proteins and nucleic acid of cells but in the last few decades it has undergone dramatic changes. Now move nitrogen has come into circulation and thus it has now become an environmental problem. Ndeposition is not always undesirable, in areas with N- limitation , N–deposition enhances the plant growth. Besides, it sequesters more CO into the plant biomass there by 2 lowering greenhouse gas emission into the atmosphere. Forest ecosystems all around the globe have experienced N- deposition and are becoming an important C-sink which has been

APA, Harvard, Vancouver, ISO, and other styles

46

Monge-Nájera, Julián. "Road kills in tropical ecosystems: a review with recommendations for mitigation and for new research." Revista de Biología Tropical 66, no. 2 (2018): 722. http://dx.doi.org/10.15517/rbt.v66i2.33404.

Full text

Abstract:

While roads are indispensable for modern civilization and beneficial for many wildlife species, they have been causing mortality from collisions since high speed chariots were invented 4 000 years ago. Most scientific work about road kill has been done in temperate ecosystems, but some authors have suspected that they have different characteristics in tropical ecosystems. In this review, I summarize publications that focus on road kills in tropical countries from Africa, America, Asia and Oceania. I found 73 studies that focus on tropical road kills. Output increased after 2011 and the most pr

APA, Harvard, Vancouver, ISO, and other styles

47

Williams, J., N. Yassaa, S. Bartenbach, and J. Lelieveld. "Mirror image hydrocarbons from Tropical and Boreal forests." Atmospheric Chemistry and Physics 7, no. 3 (2007): 973–80. http://dx.doi.org/10.5194/acp-7-973-2007.

Full text

Abstract:

Abstract. Monoterpenes, emitted in large quantities by trees to attract pollinators and repel herbivores, can exist in mirror image forms called enantiomers. In this study such enantiomeric pairs have been measured in ambient air over extensive forest ecosystems in South America and northern Europe. For the dominant monoterpene, α-pinene, the (−)-form was measured in large excess over the (+)-form over the Tropical rainforest, whereas the reverse was observed over the Boreal forest. Interestingly, over the Tropical forest (−)-α-pinene did not correlate with its own enantiomer, but correlated w

APA, Harvard, Vancouver, ISO, and other styles

48

Williams, J., N. Yassaa, S. Bartenbach, and J. Lelieveld. "Mirror image hydrocarbons from Tropical and Boreal forests." Atmospheric Chemistry and Physics Discussions 6, no. 5 (2006): 9583–602. http://dx.doi.org/10.5194/acpd-6-9583-2006.

Full text

Abstract:

Abstract. Monoterpenes, emitted in large quantities by trees to attract pollinators and repel herbivores, can exist in mirror image forms called enantiomers. In this study such enantiomeric pairs have been measured in ambient air over extensive forest ecosystems in South America and northern Europe. For the dominant monoterpene, α-pinene, the (–)-form was measured in large excess over the (+)-form over the Tropical rainforest, whereas the reverse was observed over the Boreal forest. Interestingly, over the Tropical forest (–)-α-pinene did not correlate with its own enantiomer, but correlated w

APA, Harvard, Vancouver, ISO, and other styles

49

Evans, Edward W., Lisa M. Ellsworth, and Creighton M. Litton. "Impact of grazing on fine fuels and potential wildfire behaviour in a non-native tropical grassland." Pacific Conservation Biology 21, no. 2 (2015): 126. http://dx.doi.org/10.1071/pc14910.

Full text

Abstract:

Non-native grass invasion has increased fuel loads and fire frequency in areas throughout the tropics, resulting in a non-native grass–wildfire cycle with negative impacts on native biodiversity and ecological processes. Megathyrsus maximus (guinea grass) invades dry and mesic ecosystems throughout the tropics, increasing fuel loads and wildfire intensity. Eradication of M. maximus is difficult, making effective wildfire management critical to the protection of adjacent developed areas and remnant native ecosystems. The use of domestic livestock grazing in non-native grass ecosystems may be ef

APA, Harvard, Vancouver, ISO, and other styles

50

Grantham, H. S., E. McLeod, A. Brooks, et al. "Ecosystem-based adaptation in marine ecosystems of tropical Oceania in response to climate change." Pacific Conservation Biology 17, no. 3 (2011): 241. http://dx.doi.org/10.1071/pc110241.

Full text

Abstract:

Tropical Oceania, including Melanesia, Polynesia, Micronesia and northern Australia, is one of the most biodiverse regions of the world. Climate change impacts have already occurred in the region and will become one of the greatest threats to biodiversity and people. Climate projections indicate that sea levels will rise in many places but not uniformly. Islands will warm and annual rainfall will increase and exhibit strong decadal variations. Increases in global atmospheric CO2 concentration are causing ocean acidification, compromising the ability of organisms such as corals to maintain thei

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!