Evidence of exploitative competition among young stages of the wolf spider Schizocosa ocreata
@article{Wise2004EvidenceOE, title={Evidence of exploitative competition among young stages of the wolf spider Schizocosa ocreata}, author={David H. Wise and James D. Wagner}, journal={Oecologia}, year={2004}, volume={91}, pages={7-13} }
SummaryPrevious research by many investigators has demonstrated food limitation in both web-building and wandering spiders. Field experiments have tested for exploitative competition for prey in web-building, but not wandering species. As a first step to examining the question of whether spiders without webs exhibit exploitative competition, we manipulated densities of young stages of a common wolf spider, Schizocos ocreata, and measured (1) spider growth rate and (2) numbers of Collembola, a…
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References
SHOWING 1-10 OF 42 REFERENCES
Food Limitation of the Spider Linyphia marginata: Experimental Field Studies
- Biology
- 1975
It appears that mature L. marginate compete for food; hence, for them, food supply acts as a density-dependent limiting factor, and that though a shortage of food limits growth, immature spiders are not competing for food.
Competitive mechanisms in a food-limited species: relative importance of interference and exploitative interactions among labyrinth spiders (araneae: Araneidae)
- BiologyOecologia
- 2004
It is concluded that other factors better explain the absence of exploitative competition among most M. labyrinthea spiders, which appears to be a food-limited species in which exploitative Competition for food is weak or absent.
Responses to Starvation in the Spiders Lycosa Lenta Hentz and Filistata Hibernalis (Hentz)
- Environmental Science
- 1974
Comparison of weights and body dimensions of individuals from field populations with those of known nutritional status showed that lack of food is a problem for field populations of both species, suggesting that starved individuals have the capacity to double their body weight through ingestion of large amounts of food when available.
The Experimental Analysis of Competition between Two Syntopic Species of Orb-Web Spiders (Araneae: Araneidae)
- Environmental Science
- 1983
Observed field experiments in 1979 and 1980 provide indirect evidence of the importance of physical factors and possibly vegetation in the distribution and abundance of A. au- rantia and A. trifasciata.
MICROHABITAT SELECTION AND LOCOMOTOR ACTIVIT Y OF SCHIZOCOSA OCREATA (WALCKENAER) (ARANEAE : LYCOSIDAE)
- Environmental Science
- 1984
Movement and distance information from direct observations of spiders provided support to the previous hypothesis of greater motility of male lycosids and appeared to employ a sit-and-wait foraging strategy based on the relationships of spider movement and microhabitat selection.
MICROHABITAT SELECTION AND LOCOMOTOR ACTIVITY OF SCHIZOCOSA OCREATA ( WALCKENAER ) ( ARANEAE : LYCOSIDAE )
- Environmental Science
- 2004
Direct observations of the wolf spider Schizocosa ocreata (Walckenaer) in a deciduous wood s during its breeding season indicated that soil moisture, deciduous leaf litter, and herbaceous vegetation…
PATTERNS OF RESOURCE USE AND TESTS FOR COMPETITIVE RELEASE IN A SPIDER COMMUNITY
- Environmental Science
- 1983
Investigation of the degree to which various resources were in limited supply to these species during the course of the study indicates that space was a potentially limiting factor, while prey availability appeared to be in excess of the needs of the populations.
Competition Between Two Spider, Species: Experimental Field Study
- Environmental Science
- 1984
It is suggested that the abundance of predators of spiders was low at this study site because of physical constraints and Predators or abiotic sources of mortality may have been reducing the spider populations during these other studies, reducing competition.
Evidence of low daily food consumption by wolf spiders in meadowland and comparison with other cursorial hunters
- Environmental Science
- 1990
Wolf spiders were observed masticating their prey into a “meat ball”, a behavioral mechanism that may compensate for low feeding frequency by maximizing food assimilation.
Ecological Energetics of the Spider Tarentula kochi (Araneae: Lycosidae)
- Environmental Science
- 1970
Tarentula kochi Keyserling had a 2-year life cycle and 2 populations which matured in alternate years and utilized 2 size classes of prey, and seemed to be optimal for a population living on a fixed level of available prey biomass.