Extending the “Ecology of Fear” Beyond Prey: Reciprocal Nonconsumptive Effects Among Competing Aphid Predators

2016 ◽  
Vol 45 (6) ◽  
pp. 1398-1403 ◽  
Author(s):  
J. P. Michaud ◽  
Paulo R. R. Barbosa ◽  
Clint L. Bain ◽  
Jorge B. Torres
Keyword(s):  
Nonconsumptive Effects ◽  
Aphid Predators ◽  
Ecology Of Fear

Trophic Cascades in Grasslands

2018 ◽  
Author(s):  
Brian J. Wilsey
Keyword(s):  
Indirect Effects ◽  
Prey Species ◽  
Trophic Levels ◽  
Herbaceous Plant ◽  
Direct Effects ◽  
Temperate Grasslands ◽  
Cascading Effect ◽  
Top Predators ◽  
Invertebrate Predators ◽  
Ecology Of Fear

Top predators have effects that can ‘cascade down’ on lower trophic levels. Because of this cascading effect, it matters how many trophic levels are present. Predators are either ‘sit and wait’ or ‘active’. Wolves are top predators in temperate grasslands and can alter species composition of smaller-sized predators, prey, and woody and herbaceous plant species, either through direct effects or indirect effects (‘Ecology of Fear’). In human derived grasslands, invertebrate predators fill a similar ecological role as wolves. Migrating populations of herbivores tend to be more limited by food than non-migratory populations. The phenology and synchrony of births vary among prey species in a way that is consistent with an adaptation to predation. Precocious species have highly synchronous birth dates to satiate predators. Non-precocious species (‘hiders’) have asynchronous births. Results from studies that manipulate both predators and food support the hypothesis that bottom-up and top-down effects interact.

scholarly journals Predator nonconsumptive effects on prey recruitment weaken with recruit density

Ecology ◽  
2015 ◽  
Vol 96 (3) ◽  
pp. 611-616 ◽  
Author(s):  
Julius A. Ellrich ◽  
Ricardo A. Scrosati ◽  
Markus Molis
Keyword(s):  
Nonconsumptive Effects

scholarly journals Life table parameters of the aphid predators Coccinella septempunctata, Ceratomegilla undecimnotata and Propylea quatuordecimpunctata (Coleoptera: Coccinellidae)

2008 ◽  
Vol 105 (3) ◽  
pp. 427-430 ◽  
Author(s):  
Dimitrios C. KONTODIMAS ◽  
Panagiotis G. MILONAS ◽  
George J. STATHAS ◽  
Nickolaos E. PAPANIKOLAOU ◽  
Anna SKOURTI ◽  
...  
Keyword(s):  
Life Table ◽  
Coccinella Septempunctata ◽  
Life Table Parameters ◽  
Propylea Quatuordecimpunctata ◽  
Aphid Predators

scholarly journals An applied ecology of fear framework: linking theory to conservation practice

2020 ◽  
Author(s):  
Kaitlyn M. Gaynor ◽  
Michael J. Cherry ◽  
Sophie L. Gilbert ◽  
Michel T. Kohl ◽  
Courtney L. Larson ◽  
...  
Keyword(s):  
Conservation Practice ◽  
Applied Ecology ◽  
Ecology Of Fear

Nonconsumptive effects of Brook Trout predators reduce secondary production of mayfly prey

2020 ◽  
Vol 39 (3) ◽  
pp. 549-558
Author(s):  
Benjamin J. Koch ◽  
Robert O. Hall ◽  
Barbara L. Peckarsky
Keyword(s):  
Secondary Production ◽  
Brook Trout ◽  
Nonconsumptive Effects

The ecology of fear and inverted biomass pyramids

Oikos ◽  
2020 ◽  
Vol 129 (6) ◽  
pp. 787-798 ◽  
Author(s):  
Margaret A. Malone ◽  
Abdel H. Halloway ◽  
Joel S. Brown
Keyword(s):  
Ecology Of Fear

scholarly journals Wolves and the Ecology of Fear: Can Predation Risk Structure Ecosystems?

BioScience ◽  
2004 ◽  
Vol 54 (8) ◽  
pp. 755 ◽  
Author(s):  
WILLIAM J. RIPPLE ◽  
ROBERT L. BESCHTA
Keyword(s):  
Predation Risk ◽  
Ecology Of Fear
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