Toxicity and taste: unequal chemical defences in a mimicry ring [PDF]
Mimicry of warning signals is common, and can be mutualistic when mimetic species harbour equal levels of defence (Müllerian), or parasitic when mimics are undefended but still gain protection from their resemblance to the model (Batesian).
Anne E Winters +2 more
exaly +9 more sources
Exposure to Batrachochytrium dendrobatidis affects chemical defences in two anuran amphibians, Rana dalmatina and Bufo bufo [PDF]
Background Batrachochytrium dendrobatidis (Bd) is the causative agent of chytridiomycosis, one of the major causes of worldwide amphibian biodiversity loss.
János Ujszegi +9 more
doaj +3 more sources
Comparing the Above and Below-Ground Chemical Defences of Three Rumex Species Between Their Native and Introduced Provenances [PDF]
Compared to their native range, non-native plants often experience reduced levels of herbivory in the introduced range. This may result in reduced pressure to produce chemical defences that act against herbivores.
Cristian-Andrei Costan +2 more
exaly +3 more sources
Resin acids as inducible chemical defences of pine seedlings against chewing insects. [PDF]
Inducibility of defences in response to biotic stimuli is considered an important trait in plant resistance. In conifers, previous research has mostly focused on the inducibility of the volatile fraction of the oleoresin (mono- and sesquiterpenes ...
Xosé López-Goldar +4 more
doaj +3 more sources
Age- and environment-dependent changes in chemical defences of larval and post-metamorphic toads [PDF]
Background Chemical defences are widespread in animals, but how their production is adjusted to ecological conditions is poorly known. Optimal defence theory predicts that inducible defences are favoured over constitutive defences when toxin production ...
Bálint Üveges +5 more
doaj +3 more sources
Plant domestication decreases both constitutive and induced chemical defences by direct selection against defensive traits [PDF]
Studies reporting domestication effects on plant defences have focused on constitutive, but not on induced defences. However, theory predicts a trade-off between constitutive (CD) and induced defences (ID), which intrinsically links both defensive ...
Xoaquín Moreira +3 more
doaj +3 more sources
How to fight multiple enemies: target-specific chemical defences in an aposematic moth [PDF]
Bibiana Rojas +2 more
exaly +3 more sources
Climate affects neighbour-induced changes in leaf chemical defences and tree diversity-herbivory relationships. [PDF]
Associational resistance theory predicts that insect herbivory decreases with increasing tree diversity in forest ecosystems. However, the generality of this effect and its underlying mechanisms are still debated, particularly since evidence has ...
Poeydebat C +21 more
europepmc +2 more sources
Simple growth patterns can create complex trajectories for the ontogeny of constitutive chemical defences in seaweeds. [PDF]
All of the theory and most of the data on the ecology and evolution of chemical defences derive from terrestrial plants, which have considerable capacity for internal movement of resources.
Nicholas A Paul +3 more
doaj +3 more sources

