Preference alters consumptive effects of predators: top-down effects of a native crab on a system of native and introduced prey. [PDF]
Top-down effects of predators in systems depend on the rate at which predators consume prey, and on predator preferences among available prey. In invaded communities, these parameters might be difficult to predict because ecological relationships are ...
Emily W Grason, Benjamin G Miner
doaj +1 more source
An apparent trade-off between direct and signal-based induced indirect defence against herbivores in willow trees. [PDF]
Signal-based induced indirect defence refers to herbivore-induced production of plant volatiles that attract carnivorous natural enemies of herbivores.
Kinuyo Yoneya +2 more
doaj +1 more source
Prey preference in a kleptoplastic dinoflagellate is linked to photosynthetic performance
Abstract Dinoflagellates of the family Kryptoperidiniaceae, known as “dinotoms”, possess diatom-derived endosymbionts and contain individuals at three successive evolutionary stages: a transiently maintained kleptoplastic stage; a stage containing multiple permanently maintained diatom endosymbionts; and a further permanent stage ...
Norico Yamada +11 more
openaire +4 more sources
A method to predict overall food preferences.
Most natural ecosystems contain animals feeding on many different types of food, but it is difficult to predict what will be eaten when food availabilities change. We present a method that estimates food preference over many study sites, even when number
Vilis O Nams, Matt W Hayward
doaj +3 more sources
Aeolid nudibranchs are well-known for their ability to incorporate cnidarian nematocysts and use them for defense; this process is tightly linked with the feeding preferences of molluscs.
Irina A. Ekimova +6 more
doaj +1 more source
A Bayesian approach to modelling field data on multi-species predator prey-interactions [PDF]
Multi-species functional response models are required to model the predation of generalist preda- tors, which consume more than one prey species. In chapter 2, a new model for the multi-species functional response is presented.
Asseburg, Christian
core +2 more sources
Earwig preying on ambrosia beetle: Evaluating predatory process and prey preference
AbstractEarwigs (Dermaptera), such as Forficula auricularia L., are important euryphagous predators for a wide variety of prey and can markedly influence the populations of orchard pests. Most previous studies on earwig feeding behaviour have not used adult beetles of the prey species; few researchers have focused on prey preference in earwigs.
Zi‐Ru Jiang, Hisashi Kajimura
openaire +1 more source
Prey size preference in the tokay gecko (Gekko gecko)
Abstract The optimal foraging theory posits that animals aim to maximize energy intake while minimizing predation and handling costs during foraging. Most observed animal behaviour supports this theory, but occasional deviations provide insights into the ecological factors that shape foraging decisions. We tested prey-size preference using a two-choice
Anja Probst, Eva Ringler, Birgit Szabo
openaire +2 more sources
Identifying realistic recovery targets and conservation actions for tigers in a human dominated landscape using spatially-explicit densities of wild prey and their determinants [PDF]
Aim Setting realistic population targets and identifying actions for site and landscape-level recovery plans are critical for achieving the global target of doubling wild tiger numbers by 2022.
MacMillan, Douglas C. +2 more
core +1 more source
The Effect of Digestive Capacity on the Intake Rate of Toxic and Non-Toxic Prey in an Ecological Context. [PDF]
Digestive capacity often limits food intake rate in animals. Many species can flexibly adjust digestive organ mass, enabling them to increase intake rate in times of increased energy requirement and/or scarcity of high-quality prey.
Thomas Oudman +3 more
doaj +1 more source

