Mistletoe as a keystone resource: an experimental test
نویسندگان
چکیده
منابع مشابه
Mistletoe as a keystone resource: an experimental test
Various entities have been designated keystone resources, but few tests have been attempted and we are unaware of any experimental manipulations of purported keystone resources. Mistletoes (Loranthaceae) provide structural and nutritional resources within canopies, and their pervasive influence on diversity led to their designation as keystone resources. We quantified the effect of mistletoe on...
متن کاملIndenture as a self - enforced contract device : an experimental test
We experimentally test the efficacy of indenture as a self-enforced contract device. In an indenture game, the principal signals the intention of payment-on-delivery, by tearing a banknote and giving the agent half of it as “prepayment”; the agent receives the completing half after delivering the service. By forward induction, cooperation is incentive-compatibly self-enforcing. The indenture pe...
متن کاملA direct, experimental test of resource vs. consumer dependence: comment.
The uptake of resources from the environment is a vital process for all organisms. Many experimental studies have revealed that the rate at which this process occurs depends critically on the resource concentration, a relationship called ‘‘functional response.’’ However, whether the concentration of the consumer normally affects the functional response has been the subject of a long-standing, p...
متن کاملA Direct, Experimental Test of Resource vs. Consumer Dependence: Reply
In a recent study (Fussmann et al. 2005), we used an experimental rotifer–algal system to show that the functional response of the consumer depends on the resource but not on the consumer concentration. We concluded that resource dependence should be the norm in dynamical mathematical models. Jensen et al. (2007) published a Comment on our paper in which they criticized us for overinterpreting ...
متن کاملAttachment working models as unconscious structures: An experimental test
Internal working models of attachment (IWMs) are presumed to be largely unconscious representations of childhood attachment experiences. Several instruments have been developed to assess IWMs; some of them are based on self-report and others on narrative interview techniques. This study investigated the capacity of a self-report measure, the Inventory of Parent and Peer Attachment (IPPA; Armsde...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2012
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2012.0856