Spider cues stimulate feeding, weight gain and survival of crickets

Bucher, Roman; Binz, Hellena; Menzel, Florian; Entling, Martin H.

doi:10.1111/een.12131

Cited by 12 publications

(18 citation statements)

References 55 publications

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“…This implies that the cues released by VL, as IG predators, may encourage IG prey (i.e. GL) food consumption, resulting in faster development compared to solitary controls, similar to the higher leaf consumption and weight gain reported in crickets under risk of predation by spiders (Bucher et al, 2014). However, the cues produced at higher density of ESL, as IG predator, perhaps inhibit larval feeding and thus increase their mortality.…”

Section: Discussionmentioning

confidence: 52%

Beyond killing: intra‐ and interspecific nonconsumptive effects among aphidophagous competitors

Bayoumy

Awadalla

Fathy

et al. 2018

Ecological Entomology

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1. Beyond killing, predators have nonlethal effects on their potential prey. Because aphids are highly aggregated, their predators aggregate as well, creating conditions optimal for nonconsumptive effects (NCEs) among competing larvae. Although intraguild predator (IGP) density can alter the balance between conflicting forces, little is known about its effect on competing prey.2. A partitioned Petri-dish that permitted the passage of signals was used to examine the NCEs between competing stages of similar-or different-sized, conspecific or heterospecific, individuals, on development, survival and reproduction of competing prey.3. Coccinella undecimpunctata L. larvae suffered developmental and reproductive costs resulting from the presence of conspecific and heterospecific larvae, but showed no impact on their survival. In contrast, larvae of Chrysoperla carnea Stephens and Hippodamia variegata (Goeze) gained developmental benefits, without reproductive costs. Faster development can be construed as adaptive, as it reduces immature mortality.4. Interestingly, threat-sensitive prey responses appear to be species-specific, regardless of predator density. In a C. carnea larva-H. variegata adult competing system, larvae responded to the threat posed by heterospecific adults, with accelerated development, but suffered reproductive costs. In a C. carnea larva-C. undecimpunctata adult system, no overall development costs in response to heterospecific adults were evident. The only cost was on survival at higher IGP density. Thus, the phenotype induced under H. variegata stress was adaptive for development in aphid colonies, whereas that under C. undecimpunctata stress was not.5. NCEs are not simple vertical forces affecting prey, but can affect guilds on the same trophic level. Co-release of more than one species and density of these species may adversely increase the aphid populations.

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Section: Discussionmentioning

confidence: 52%

Beyond killing: intra‐ and interspecific nonconsumptive effects among aphidophagous competitors

Bayoumy

Awadalla

Fathy

et al. 2018

Ecological Entomology

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“…A significant increase in predation rates of A. limonicus females on B. cockerelli first instar nymphs was found when ant odour was present. Similarly, Bucher et al . also found the presence of nursery web spider ( Pisaura mirabilis ) cues increases the consumption of wood crickets ( Nemobius sylvestris ) on woodland strawberry plants ( Fragaria vesca L.).…”

Section: Discussionmentioning

confidence: 81%

“…However, in our study ant odour did not affect the fecundity of A. limonicus . The potential explanation is that constant exposure to ant odour changes the other antipredator responses of individuals to odour, such as life expectancy and age‐stage predation rates, in this case causing the female mites to increase their predation rates in response to ant odour. Further experiments should be done to clarify whether the increased predation rate was caused by the increasing activity or by altered sensitivity to ant odour.…”

Section: Discussionmentioning

confidence: 99%

Tri‐partite complexity: odour from a psyllid's mutualist ant increased predation by a predatory mite on the psyllid

Liu

Zhang

Beggs

2019

Pest Management Science

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BACKGROUND: Predator-prey interactions consist of direct consumption of prey by predators and indirect non-consumptive effects on prey. Predator cues can induce predation stress in prey that negatively influences the survival, development, reproduction, and feeding behaviour of the prey. This study evaluated the effects of hemipteran-tending ant (Technomyrmex albipes) odour on the development, survival, reproduction, and predation rates of the predatory mite Amblydromalus limonicus when feeding on an invasive pest of solanaceous crops, Bactericera cockerelli. The age-stage, two-sex life table theory was used to compare the demographic characteristics and predation rates of A. limonicus in the presence and absence of ant odour. RESULTS:We show that exposure to ant odour did not alter the development, survival rate, and fecundity of A. limonicus, but induced a sexually dimorphic response in its longevity; consumption rates also showed that dimorphic response-predation rates increased in female A. limonicus, but not in males. CONCLUSION: To our knowledge, this is the first report indicating increased consumption rates by natural enemies exposed to odour from a mutualist of pest (ant). This finding may provide new insights into understanding tri-partite interaction involving a pest, its predator, and a mutulist of the pest.

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“…Higher protein intake and growth rate at the longer foraging distance could therefore be a means for nymphs to escape predation from smaller-sized predators and start reproducing sooner. In wood cricket (Nemobius sylvestris) nymphs, feeding as well as weight gain appeared to be stimulated by spider cues (Bucher et al, 2014). Furthermore, grasshopper (Melanoplus femurrubrum) nymphs that were exposed to a spider predator consumed more food than unexposed nymphs, but the difference was due to a higher consumption of carbohydrate and not protein in predator-exposed nymphs (Hawlena and Schmitz, 2010).…”

Section: Discussionmentioning

confidence: 99%

Effects of foraging distance on macronutrient balancing and performance in the German cockroach,Blattella germanica

Jensen

Schal

et al. 2016

Journal of Experimental Biology

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The German cockroach (Blattella germanica) is an excellent model omnivore for studying the effect of foraging effort on nutrient balancing behavior and physiology, and its consequences for performance. We investigated the effect of foraging distance on individual German cockroaches by providing two foods differing in protein-to-carbohydrate ratio at opposite ends of long containers or adjacent to each other in short containers. Each food was nutritionally imbalanced, but the two foods were nutritionally complementary, allowing optimal foraging by selective feeding from both foods. We measured nutrient-specific consumption in fifth instar nymphs and newly eclosed females foraging at the two distances, hypothesizing that individuals foraging over longer distance would select more carbohydrate-biased diets to compensate for the energetic cost of locomotion. We then determined dry mass growth and lipid accumulation in the nymphs as well as mass gain and the length of basal oocytes in the adult females as an estimate of sexual maturation. Nymphs foraging over longer distance accumulated less lipid relative to total dry mass growth, but contrary to our predictions, their protein intake was higher and they accumulated more structural mass. In concordance, adult females foraging over longer distance gained more body mass and matured their oocytes faster. Our results show a positive effect of foraging distance on fitness-related parameters at two life stages, in both cases involving increased consumption of specific nutrients corresponding to requirements at the respective life stage.

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Spider cues stimulate feeding, weight gain and survival of crickets

Cited by 12 publications

References 55 publications

Beyond killing: intra‐ and interspecific nonconsumptive effects among aphidophagous competitors

Beyond killing: intra‐ and interspecific nonconsumptive effects among aphidophagous competitors

Tri‐partite complexity: odour from a psyllid's mutualist ant increased predation by a predatory mite on the psyllid

Effects of foraging distance on macronutrient balancing and performance in the German cockroach,Blattella germanica

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