Now showing items 1-10 of 1501
The role of spider hunting mode on the strength of spider–plant mutualisms
The strength and outcome of mutualistic interactions can be highly dependent on the combination of traits of the species involved. Distinct foraging strategies (e.g., hunting mode) of mutualistic predators may cause ...
Distribution of plant-dwelling spiders: Inflorescences versus vegetative branches
(Blackwell Publishing AsiaCarltonAustralia, 2004)
Energetics, Scaling and Sexual Size Dimorphism of Spiders
The extreme sexual size dimorphism in spiders has motivated studies for many years. In many species the male can be very small relative to the female. There are several hypotheses trying to explain this fact, most of ...
Mantispa minuta Fabricius (Neuroptera : Mantispidae) on egg sacs of the orb-weaver spider Parawixia bistriata (Araneidae) in forests of Eucalyptus grandis in Brazil
(Swets Zeitlinger Publishers, 2002-08-01)
This is the first report of the interaction between the two entomophagous agents Mantispa minuta Fabricius (Mantispidae) and Parawixia bistriata Rengger, an orb-weaver spider (Araneidae). From egg sacs kept in the laboratory ...
Bromeliads provide shelter against fire to mutualistic spiders in a fire-prone landscape
1. A key challenge in the study of mutualistic interactions is understanding sources of variation that strengthen or weaken these interactions. In spider-plant mutualisms, spiders benefit plants by improving plant nutrition ...
Distribution and importance of spiders inhabiting a Brazilian sugar cane plantation
(Sociedade Brasileira de Zoologia, 2002-07-01)
The spider fauna (Araneae) of a sugar eane plantation was surveyed monthly by hand colteetion and beating vegetation in sugar cane fields across Botucatu, State of São Paulo, Brazil. Composition and rchness (family and ...
Bromeliad-living spiders improve host plant nutrition and growth
(Ecological Soc Amer, 2006-04-01)
Although bromeliads are believed to obtain nutrients from debris deposited by animals in their rosettes, there is little evidence to support this assumption. Using stable isotope methods, we found that the Neotropical ...
Isolation and chemical characterization of PwTx-II: A novel alkaloid toxin from the venom of the spider Parawixia bistriata (Araneidae, Araneae)
(Elsevier B.V., 2005-12-01)
Brazil has many species of spiders belonging to Araneidae family however, very little is known about the composition, chemical structure and mechanisms of action of the main venom components of these spiders. The main ...
Low metabolic rates in primitive hunters and weaver spiders
The rates of oxygen consumption and carbon dioxide release of primitive hunters and weaver spiders, the Chilean Recluse spider Loxosceles laeta Nicolet (Araneae: Sicariidae) and the Chilean Tiger spider Scytodes globula ...