Results 31 to 40 of about 96,137 (298)

Within-guild dietary discrimination from 3-D textural analysis of tooth microwear in insectivorous mammals [PDF]

open access: yes, 2013
Resource exploitation and competition for food are important selective pressures in animal evolution. A number of recent investigations have focused on linkages between diversification, trophic morphology and diet in bats, partly because their roosting ...
Crumpton, Nicholas   +4 more
core   +2 more sources

An apparent trade-off between direct and signal-based induced indirect defence against herbivores in willow trees. [PDF]

open access: yesPLoS ONE, 2012
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

A method to predict overall food preferences.

open access: yesPLoS ONE, 2022
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

Determining trophic niche width: a novel approach using stable isotope analysis [PDF]

open access: yes, 2004
1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Adams, C.E.   +4 more
core   +1 more source

Prey size preference in the tokay gecko (Gekko gecko)

open access: yesBehaviour, 2023
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   +3 more sources

Nematocyst sequestration within the family Fionidae (Gastropoda: Nudibranchia) considering ecological properties and evolution

open access: yesFrontiers in Zoology, 2022
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

Colour change and assortment in the western rainbowfish [PDF]

open access: yes, 2010
Grouping behaviour is widespread across the animal kingdom, and is known to reduce an individual's risk of predation, for example through predator confusion.
Kelley, Jennifer L.   +2 more
core   +1 more source

First record of predation on a seed beetle (Coleoptera: Bruchidae) by a checkered beetle (Coleoptera: Cleridae) [PDF]

open access: yes, 2013
A new relationship, that of predator and prey, between the coleopteran families Cleridae and Bruchidae is ...
Rifkind, Jacques   +1 more
core   +3 more sources

Prey preference in a kleptoplastic dinoflagellate is linked to photosynthetic performance

open access: yesThe ISME Journal, 2023
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   +3 more sources

Feeding of two species of Scydmaeninae "hole scrapers", Cephennium majus and C. ruthenum (Coleoptera: Staphylinidae), on oribatid mites

open access: yesEuropean Journal of Entomology, 2016
Prey preferences and feeding-related behaviour of two Central European species of Scydmaeninae, Cephennium majus and Cephennium ruthenum, were studied under laboratory conditions.
Paweł JAŁOSZYŃSKI   +1 more
doaj   +1 more source

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