Predator identity and trait-mediated indirect effects in a littoral food web

Oecologia ◽  
2001 ◽  
Vol 129 (1) ◽  
pp. 139-146 ◽  
Author(s):  
Randall J. Bernot ◽  
Andrew M. Turner
Keyword(s):  
Food Web ◽  
Indirect Effects ◽  
Predator Identity

scholarly journals Predator identity and the nature and strength of food web interactions

2010 ◽  
Vol 79 (6) ◽  
pp. 1164-1171 ◽  
Author(s):  
Lee M. Henry ◽  
Jordan A. Bannerman ◽  
David R. Gillespie ◽  
Bernard D. Roitberg
Keyword(s):  
Food Web ◽  
Food Web Interactions ◽  
Predator Identity

Invasive rodents have multiple indirect effects on seabird island invertebrate food web structure

2017 ◽  
Vol 27 (4) ◽  
pp. 1190-1198 ◽  
Author(s):  
Joshua J. Thoresen ◽  
David Towns ◽  
Sebastian Leuzinger ◽  
Mel Durrett ◽  
Christa P. H. Mulder ◽  
...  
Keyword(s):  
Food Web ◽  
Indirect Effects ◽  
Food Web Structure ◽  
Web Structure ◽  
Invasive Rodents

Nutrient Enrichment, Sedimentation, Heavy Metals and Plastic Pollution in the Marine Environment and its Implications on Philippine Marine Biodiversity: A Review

2015 ◽  
Vol 15 (1) ◽  
Author(s):  
Neil Angelo S. Abreo ◽  
Edison D. Macusi ◽  
Ginalyn C. Cuenca ◽  
Cyril Tom B. Ranara ◽  
Michael B. Andam ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Food Web ◽  
Alien Species ◽  
Marine Environment ◽  
Nutrient Enrichment ◽  
Indirect Effects ◽  
Habitat Degradation ◽  
Population Increase ◽  
Marine Biodiversity ◽  
Plastic Pollution

Marine biodiversity plays a vital role in ecosystem resilience and stability against climate change and alien species invasions, among others. This also plays a role in the provision of ecosystem services and functions that benefits humans. However due to anthropogenic activities and population increase, marine biodiversity have been affected most. We conducted a review using open-sourced journals on the effects of nutrient enrichment, sedimentation, heavy metals and plastic pollution in the marine environment and its implications on marine biodiversity. Lethal and sub-lethal effects were observed in different organisms that could affect marine biodiversity directly or indirectly. Direct effects include mortality of organisms while indirect effects include habitat degradation or alteration, a simplified food web, increase alien species invasion and reduced fitness of organisms. Human land use change, coastal construction activities, untreated sewage discharges, pesticides, mine tailings, uncollected, unsegregated and improperly dumped garbages and unabated garbage dumping at sea have been found to negatively influence marine biodiversity. In the Philippines, very few studies have been conducted with regards to marine pollution, especially on marine plastic debris, and even fewer studies have been made that tackles the effect of these stressors at an ecosystem level. Furthermore, this review has identified direct and indirect effects of pollution stressors on marine organisms which include: mortality and reduced fitness, vulnerability to disease or sickness,-habitat degradation, and food web simplification.     Keywords - Ecology, nutrient enrichment, sedimentation, plastic, biodiversity, literature review, pollution, Philippines

Indirect effects of zebra mussels (Dreissena polymorpha) on the planktonic food web

2003 ◽  
Vol 60 (11) ◽  
pp. 1353-1368 ◽  
Author(s):  
Erik G Noonburg ◽  
Brian J Shuter ◽  
Peter A Abrams
Keyword(s):  
Food Web ◽  
Indirect Effects ◽  
Zebra Mussel ◽  
Dreissena Polymorpha ◽  
Abiotic Factors ◽  
Zebra Mussels ◽  
Trophic Groups ◽  
Planktonic Food ◽  
Zooplankton Density ◽  
The Impact

The exotic zebra mussel (Dreissena polymorpha) has caused dramatic reductions in phytoplankton density in lakes with dense mussel populations. However, the indirect effects of this invader on other trophic groups have been inconsistent and difficult to interpret. In some lakes, zebra mussels appear to have had little effect on zooplankton density, despite decreasing the abundance of their phytoplankton prey. We analyze food web models to test hypothesized mechanisms for the absence of a strong effect of dreissenids on zooplankton. Our results suggest that neither reduced inedible algal interference with zooplankton filtering nor reduced phytoplankton self-shading is sufficient to explain the insensitivity of zooplankton populations to dreissenid competition. Instead, we show how the impact of benthic filter feeders can be influenced by the rate of mixing within a basin, which limits phytoplankton delivery to the benthos. We explore the predictions of a simple spatially structured model and demonstrate that differences in abiotic factors that control mixing can result in large differences in direct and indirect effects of zebra mussel filtering.

scholarly journals Direct and indirect effects of predatory young-of-year fishes in a dryland river food web

2017 ◽  
Vol 62 (8) ◽  
pp. 1410-1421 ◽  
Author(s):  
Corey A. Krabbenhoft ◽  
Ayesha S. Burdett ◽  
Thomas F. Turner
Keyword(s):  
Food Web ◽  
Indirect Effects ◽  
Direct And Indirect Effects ◽  
Dryland River

Fish-mediated indirect effects in a littoral food web

Oikos ◽  
2002 ◽  
Vol 96 (1) ◽  
pp. 150-156 ◽  
Author(s):  
Johan Lovgren ◽  
Lennart Persson
Keyword(s):  
Food Web ◽  
Indirect Effects

Direct and indirect effects of a keystone engineer on a shrubland‐prairie food web

Ecology ◽  
2020 ◽  
Author(s):  
Courtney J. Duchardt ◽  
Lauren M. Porensky ◽  
Ian S. Pearse
Keyword(s):  
Food Web ◽  
Indirect Effects ◽  
Direct And Indirect Effects

Predator identity dominates non-consumptive effects in a disease-impacted rocky shore food web

Oecologia ◽  
2019 ◽  
Vol 191 (4) ◽  
pp. 945-956 ◽  
Author(s):  
Kindall A. Murie ◽  
Paul E. Bourdeau
Keyword(s):  
Food Web ◽  
Rocky Shore ◽  
Predator Identity
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