Results 21 to 30 of about 5,780,781 (282)
Species with a chemical defence, but not chemical offence, live longer [PDF]
AbstractEvolutionary hypotheses for ageing generally predict that delayed senescence should evolve in organisms that experience lower extrinsic mortality. Thus, one might expect species that are highly toxic or venomous (i.e. chemically protected) will have longer lifespans than related species that are not likewise protected.
Hossie, Thomas +3 more
openaire +2 more sources
Compound Specific Trends of Chemical Defences in Ficus Along an Elevational Gradient Reflect a Complex Selective Landscape [PDF]
Elevational gradients affect the production of plant secondary metabolites through changes in both biotic and abiotic conditions. Previous studies have suggested both elevational increases and decreases in host-plant chemical defences.
Novotny V +13 more
core +2 more sources
Do induced responses mediate the ecological interactions between the specialist herbivores and phytopathogens of an alpine plant? [PDF]
Plants are not passive victims of the myriad attackers that rely on them for nutrition. They have a suite of physical and chemical defences, and are even able to take advantage of the enemies of their enemies.
Gregory Röder +2 more
doaj +1 more source
Knowing the Enemy: Inducible Defences in Freshwater Zooplankton
Phenotypic plasticity in defensive traits is an appropriate mechanism to cope with the variable hazard of a frequently changing predator spectrum. In the animal kingdom these so-called inducible defences cover the entire taxonomic range from protozoans ...
Patricia Diel +3 more
doaj +1 more source
Predator‐induced changes in the chemical defence of a vertebrate [PDF]
Abstract1. Inducible defences are ubiquitous in the animal kingdom, but little is known about facultative changes in chemical defences in response to predators, especially so in vertebrates.2. We tested for predator‐induced changes in toxin production of larval common toads (Bufo bufo), which are known to synthesize bufadienolide compounds.3.
Hettyey, Attila +8 more
openaire +6 more sources
Introduction A wide range of arbuscular mycorrhizal fungi (AMF) can be applied to agricultural soils as biofertilizers for increasing crop growth and yield.
Dimitri Orine +5 more
doaj +1 more source
Chemical Defence and Toxins of Plants [PDF]
Higher plants protect themselves by producing a variety of secondary metabolites and proteins that are involved in defense against herbivores as well as microbial pathogens. Concerning microbial pathogenesis in plants, in many cases, it is known that phytotoxins that are produced by plant pathogens play an important role in disease development causing ...
Yamane, H. +5 more
openaire +3 more sources
Sponges thrive in marine benthic communities due to their specific and diverse chemical arsenal against predators and competitors. Yet, some animals specifically overcome these defences and use sponges as food and home.
Yu-Chen Wu +5 more
doaj +1 more source
Aim of study: to assess whether constitutive levels of total phenols and condensed tannins acting as chemical defences in Quercus ilex vary across regions, populations and genotypes.
Manuela Rodríguez-Romero +2 more
doaj +1 more source
Maternally Derived Chemical Defences Are an Effective Deterrent Against Some Predators of Poison Frog Tadpoles (Oophaga Pumilio) [PDF]
Jennifer L. Stynoski, Peter Stynoski
exaly +2 more sources

