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Terrestrial Trophic Cascades: How Much Do They Trickle?
The meta‐analysis suggests that the effects of trophic cascades on the biomass of primary producers are weaker in terrestrial than aquatic food webs.
Cannibalism, food limitation, intraspecific competition, and the regulation of spider populations.
- D. Wise
- Environmental ScienceAnnual review of entomology
This review first briefly treats the different types of spider cannibalism and then focuses in more depth on evidence relating cannibalism to population dynamics and food web interactions to address the following questions.
Spiders in Ecological Webs
- D. Wise
- 4 February 1993
The spider in the ecological play is a central character in the story of how spiders avoid competition and the impact of spiders on insect populations and competitionist views of spider communities are examined.
IMPACT OF A DETRITAL SUBSIDY ON TROPHIC CASCADES IN A TERRESTRIAL GRAZING FOOD WEB
Testing the hypothesis that a detrital subsidy would enhance trophic cascades in the grazing food web of an agroecosystem in which generalist predators, wolf spiders and carabid beetles, feed both on detritivores and herbivores found no consistent evidence of strong trophal cascades measured as changes in fruit yield in either detritus-addition or predator-removal treatments.
Growth, development, and survival of a generalist predator fed single- and mixed-species diets of different quality
The results of these experiments suggest that prey species that are similar in morphology and behavior, and that are initially killed and consumed, may differ dramatically in their suitability as food for generalist arthropod predators.
Behavioral and ecophysiological responses of a generalist predator to single- and mixed-species diets of different quality
Consumption by Schizocosa of even small amounts of some “toxic” prey species reduced growth by inhibiting feeding rate and impairing utilization of food derived from prey of higher quality, having implications for understanding the interactions of generalist predators in community food webs.
Cannibalism Regulates Densities of Young Wolf Spiders: Evidence From Field and Laboratory Experiments
The results of field and laboratory experiments lead to the conclusion that cannibalism can act as a strong DD mortality factor for young instars of S. ocreata, with the potential to regulate densities of this abundant cursorial spider.
Wandering spiders limit densities of a major microbi-detritivore in the forest-floor food web
- D. Wise
- Environmental Science
- 31 March 2004
BOTTOM-UP LIMITATION OF PREDACEOUS ARTHROPODS IN A DETRITUS-BASED TERRESTRIAL FOOD WEB
Substantial bottom-up lim- itation is uncovered in this detritus-based food web, expressed as responses by predaceous arthropods at least two trophic links removed from the experimentally elevated resource.