Results 41 to 50 of about 6,688,339 (197)

How Plant Toxins Cause Early Larval Mortality in Herbivorous Insects: An Explanation by Modeling the Net Energy Curve

open access: yesToxins
Plants store chemical defenses that act as toxins against herbivores, such as toxic isothiocyanates (ITCs) in Brassica plants, hydrolyzed from glucosinolate (GLS) precursors.
Suman Chakraborty, Stefan Schuster
doaj   +1 more source

Teaching Genetic Linkage and Multiple Crossovers with Sets of Cards as Chromosomes

open access: yesJournal of Microbiology & Biology Education, 2017
TMathematical models help students identify and understand underlying scientific patterns, while improving and reinforcing quantitative skills. However, they are often omitted from introductory undergraduate science classes.
Richard H. Heineman
doaj   +1 more source

Optimal foraging predicts the ecology but not the evolution of host specialization in bacteriophages. [PDF]

open access: yesPLoS ONE, 2008
We explore the ability of optimal foraging theory to explain the observation among marine bacteriophages that host range appears to be negatively correlated with host abundance in the local marine environment.
Sébastien Guyader, Christina L Burch
doaj   +1 more source

Agent‐based modeling may help to merge research traditions in foraging ecology in Europe and North America

open access: yesWildlife Society Bulletin, 2017
Although ducks have long been popular research subjects in both North America and Europe, geographical divergences in research orientation have developed during the past several decades for studying foraging ecology.
Matthieu Guillemain   +4 more
doaj   +1 more source

Gape‐limited invasive predator frequently kills avian prey that are too large to swallow

open access: yesEcology and Evolution
Gape‐limited predators (e.g., snakes, many fish) are not generally expected to pose a predation threat to prey that are too large for them to swallow. However, the extent to which snakes predate on prey that exceed their gape limitation remains largely ...
Martin Kastner   +6 more
doaj   +1 more source

Diving seabirds share foraging space and time within and among species

open access: yesEcosphere, 2010
Ecological theory predicts that animals with similar foraging strategies should not be able to co‐exist without segregating either in space, time or diet. In communities, intra‐specific competition is thought to be more intense than the competition among
Juan F. Masello   +6 more
doaj   +1 more source

Leave or stay? Video-logger revealed foraging efficiency of humpback whales under temporal change in prey density.

open access: yesPLoS ONE, 2019
Central place foraging theory (CPF) has been used to predict the optimal patch residence time for air-breathing marine predators in response to patch quality.
Yu Akiyama   +7 more
doaj   +1 more source

Advancement in Information Foraging Theory

open access: yesIntelligent Information Management, 2012
This paper presents the advantages of information foraging theory matched with traditional information retrieval theory and user behavior analysis theory, a search content framework for information foraging theory is described, on a thorough review of the two research branches i.e.
Shailesh Khapre, M. S. Saleem Basha
openaire   +2 more sources

Review: Using physiologically based models to predict population responses to phytochemicals by wild vertebrate herbivores

open access: yesAnimal, 2018
To understand how foraging decisions impact individual fitness of herbivores, nutritional ecologists must consider the complex in vivo dynamics of nutrient–nutrient interactions and nutrient–toxin interactions associated with foraging.
J.S. Forbey   +7 more
doaj   +1 more source

Root foraging theory put to the test

open access: yesTrends in Ecology & Evolution, 2006
Roots have a tremendous plasticity that has long fascinated plant scientists. Root proliferation into enriched soil patches is commonly considered as a way for plants to acquire patchily distributed soil resources. In a recent synthetic study involving the responses of over 100 species, Kembel and Cahill concluded that long-standing generalizations ...
de Kroon, H., Mommer, L.
openaire   +5 more sources

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