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Exploring and Analysing the African Web Ecosystem

Rodérick Fanou, Gareth Tyson, Eder Leao Fernandes, Pierre Francois, Francisco Valera, Arjuna Sathiaseelan
2018 ACM Transactions on the Web  
used to analyse the nature and availability of content infrastructure.  ...  That said, we nd that much of its web content is still served from the US and Europe, despite being the most popular website in many African countries.  ...  ACKNOWLEDGEMENTS 1202 We would like to thank Victor Sanchez-Agüero, Jose Felix Kukielka, Steve Uhlig, and the RIPE Atlas team.  ... 
doi:10.1145/3213897 fatcat:kburqzxaujevzgtrtblhgyq5qi

Page 485 of The Journal of Animal Ecology Vol. 80, Issue 2 [page]

2011 The Journal of Animal Ecology  
This enabled us to construct the first and rather com- plete descriptive food web topology of a natural savanna ecosystem.  ...  the centuries and reflects what is currently taking place outside the bound- aries of the major East-African protected areas.  ... 

A food web perspective on large herbivore community limitation

Hervé Fritz, Michel Loreau, Simon Chamaillé-Jammes, Marion Valeix, Jean Clobert
2011 Ecography  
The exceptional diversity of large mammals in African savannas provides an ideal opportunity to explore the relative importance of top-down and bottom-up controls of large terrestrial herbivore communities  ...  Here we used published data on primary production, herbivore and carnivore densities and diets to estimate the consumption fluxes between three trophic levels in four African savanna ecosystems.  ...  , and within the BioFun and FEAR projects funded by the French National Research Agency (respectively ANR-05-BDIV-013-01 and ANR-08-BLAN-0022).  ... 
doi:10.1111/j.1600-0587.2010.06537.x fatcat:3wyb2wpy7rbuzisacze3wq3lky

Page 1052 of Biological Reviews Vol. 89, Issue 4 [page]

2014 Biological Reviews  
, modelling and network analyses aimed at unravelling the ecological and evolutionary processes that shape predator—scavenger assemblages in complex ecosystems.  ...  Carrion cycling in food webs: comparisons among terrestrial and marine ecosystems. Oikos 121, 1021-1026. BERGER, J. (1999).  ... 

Contrasting spatial patterns of taxonomic and functional richness offer insights into potential loss of ecosystem services

G. S. Cumming, M. F. Child
2009 Philosophical Transactions of the Royal Society of London. Biological Sciences  
We present the function-area relationship (FAR) and explore linkages between functional and taxonomic species richness for South African birds.  ...  could formally incorporate a more functional and food-web-based approach.  ...  Deeper exploration of the details of the FAR-or more specifically, of the spatial variation that it glosses over at our scale of analysis-is provided by analyses of taxonomic patterns in regard to functional  ... 
doi:10.1098/rstb.2008.0317 pmid:19451119 pmcid:PMC2685431 fatcat:wa575zsbijbpzmq6kw36x3xmli

PREDATOR-PREY BIOMASS FLUCTUATIONS IN THE PLIO-PLEISTOCENE

C. MELORO, M. CLAUSS
2012 Palaios  
Here, we estimate the predator and prey biomass in nine Italian Plio-Pleistocene mammalian paleocommunities and compare their relationships with recent ecosystems.  ...  predators were similar in Plio-Pleistocene and recent ecosystems for this BM range.  ...  Polly, and an anonymous reviewer for improving the quality of this manuscript.  ... 
doi:10.2110/palo.2011.p11-048r fatcat:bwpoxflh2baulhzr45rw5z4foe

APPLICATION OF THE GIBBS SAMPLER TO THE CONDITIONAL SIMULATION OF RAIN FIELDS

HUBERT ONIBON, THIERRY LEBEL, ABEL AFOUDA, GILLES GUILLOT
2002 Contemporary Problems in Mathematical Physics  
While this drought went somewhat abated in the end of the 90's, the fragility of the Sahelian ecosystem and the chronic deficit in water resources require to anticipate possible episodes of similar or  ...  data obtained from such experiments as HAPEX-Sahel and EPSAT-Niger.  ...  In order to explore the efficiency of the. model, it is tested on a sample of Sahelian rainfields observed during the EPSAT-Niger experiment.  ... 
doi:10.1142/9789812777560_0010 fatcat:homgaexvdjcwjdpee5mh4ous2u

Exploring Temporal Variability in the Southern Benguela Ecosystem Over the Past Four Decades Using a Time-Dynamic Ecosystem Model

Lynne J. Shannon, Kelly Ortega-Cisneros, Tarron Lamont, Henning Winker, Robert Crawford, Astrid Jarre, Marta Coll
2020 Frontiers in Marine Science  
This study shows promise in unraveling the observed dynamics of the Benguela upwelling ecosystem, and points to the importance of exploring spatially disaggregated approaches, in  ...  The paper documents the model development and the thinking behind incorporating a newly available upwelling index, and observed fishing effort as important drivers of modeled ecosystem dynamics.  ...  These expanded data series were used to improve the model resolution of the Southern Benguela ecosystem, and to further explore food web processes underpinning observed ecosystem dynamics.  ... 
doi:10.3389/fmars.2020.00540 fatcat:ofwyobgpsfbrtfnnmd7ty7nqxm

Internet applications, sites, trends and happenings

David Raitt
2005 South African Journal of Information Management  
Ecosystems and us Human well-being is highly dependant on ecosystems and the benefits they provide, such as food and drinkable water.  ...  The interactive satellite view gives you a chance to explore and evaluate your locations in far greater detail.  ... 
doi:10.4102/sajim.v7i3.268 fatcat:5mumkdynmncl5gjb7hm6l23tue

A century of fish biomass decline in the ocean

V Christensen, M Coll, C Piroddi, J Steenbeek, J Buszowski, D Pauly
2014 Marine Ecology Progress Series  
Aydin K, Lapko V, Radchenko V, Livingston P (2002) A comparison of the eastern Bering and western Bering Sea shelf and slope ecosystems through the use of mass-balance food web models.  ...  Christensen V, Beattie A, Buchanan C, Ma H and others (2009) Fisheries ecosystem model of the Chesapeake Bay: methodology, parameterization, and model exploration.  ... 
doi:10.3354/meps10946 fatcat:yahesp4t5fgqniogiu7qdwbeim

Exploring integrative research in the context of invasive alien plant management

Brent Abrahams, Nadia Sitas, Karen J. Esler
2019 South African Journal of Science  
In this study, we explored the extent to which the integration of different disciplines has occurred, using a case study of the South African invasive species management programme, Working for Water (WfW  ...  Here we provide an overview of the research produced under the auspices of WfW, and how it came to be.  ...  Acknowledgements We acknowledge funding provided by the DST-NRF Centre of Excellence for Invasion Biology and the Working for Water Programme through their collaborative research project 'Integrated Management  ... 
doi:10.17159/sajs.2019/4263 fatcat:kznvlflibnhq7b6whf4h5icyxm

Using Social Media to Measure the Contribution of Red List Species to the Nature-Based Tourism Potential of African Protected Areas

Louise Willemen, Andrew J. Cottam, Evangelia G. Drakou, Neil D. Burgess, Francisco Moreira
2015 PLoS ONE  
Based on photo counts of 2473 African animals and plants, species that seem most attractive to nature-based tourism are the Lion, African Elephant and Leopard.  ...  The proposed method requires only three data sources which are freely accessible and available online, which could make the proposed index tractable for large scale quantitative ecosystem service assessments  ...  The very helpful critical and constructive comments of three reviewers improved our work considerably.  ... 
doi:10.1371/journal.pone.0129785 pmid:26068111 pmcid:PMC4466363 fatcat:nfo3qgvx3vbtpdtvalkdrsrnni

Rescaling the trophic structure of marine food webs

Nigel E. Hussey, M. Aaron MacNeil, Bailey C. McMeans, Jill A. Olin, Sheldon F.J. Dudley, Geremy Cliff, Sabine P. Wintner, Sean T. Fennessy, Aaron T. Fisk, Dag Hessen
2013 Ecology Letters  
Measures of trophic position (TP) are critical for understanding food web interactions and human-mediated ecosystem disturbance.  ...  Apex predator TP estimates were markedly higher than currently assumed by whole-ecosystem models, indicating perceived food webs have been truncated and species-interactions over simplified.  ...  Ander De Lecea is thanked for collection of South African zooplankton samples and KwaZulu-Natal Sharks Board laboratory staff for dissection of sharks.  ... 
doi:10.1111/ele.12226 pmid:24308860 pmcid:PMC3912912 fatcat:vcs243fjw5fi5muynajctjamre

A Cursory Look at the Fishmeal/Oil Industry From an Ecosystem Perspective

Lynne Shannon, Lauren Waller, Lauren Waller
2021 Frontiers in Ecology and Evolution  
We concisely summarize the global context of marine sourced fishmeal and then use the South African marine ecosystem as a working example.  ...  benefit marine ecosystems, fisheries on predatory species, and vulnerable marine predators.  ...  Infographics summarizing key aspects of the forage fish-fisheries-ecosystem services web discussed in the article for (A) the global perspective and (B) the South African case study.  ... 
doi:10.3389/fevo.2021.645023 doaj:4ed54327766c46178c9a6528b9d3d1d8 fatcat:bxbxkb67ajbyheyb3pbvg7gzwq

From regional to global patterns in vertebrate scavenger communities subsidized by big game hunting

Patricia Mateo-Tomás, Pedro P. Olea, Marcos Moleón, Joaquín Vicente, Francisco Botella, Nuria Selva, Javier Viñuela, José Antonio Sánchez-Zapata, David M. Richardson
2015 Diversity and Distributions: A journal of biological invasions and biodiversity  
We analysed the structure of the scavenger communities considering species composition, richness and scavenging frequency.  ...  By feeding on carrion, scavengers support key ecosystem functions and services, becoming key vectors to transfer the impacts of human-mediated food subsidies across ecosystems.  ...  The authors research on ecology and conservation biology of terrestrial ecosystems with a special focus on vertebrates and scavengers and their relationships with human activities.  ... 
doi:10.1111/ddi.12330 fatcat:zortlplcszgrhjnbiwpa3r2qim
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