Compensatory feeding of a stream detritivore alleviates the effects of poor food quality when enough food is supplied

Flores, Lorea; Larrañaga, Aitor

doi:10.1086/674578

Cited by 55 publications

(42 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, since we did not measure the carbon content of leaves and BPOM, we preferred to express our results as organic matter as a more accurate expression of our results. The carbon content of most leaf species in our streams, including alder, is around 40-50% (Martínez et al, 2013b), similar to BPOM accumulations (calculated from data shown by Flores et al, 2014). These ratios can be used to have a rough estimate of the impacts of water abstraction on the carbon flux.…”

Section: Discussionsupporting

confidence: 68%

Impact of water abstraction on storage and breakdown of coarse organic matter in mountain streams

Arroita

Aristi

Díez

et al. 2015

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

Section: Discussionsupporting

confidence: 68%

Impact of water abstraction on storage and breakdown of coarse organic matter in mountain streams

Arroita

Aristi

Díez

et al. 2015

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

“…Compensatory growth in response to poor food quality has been demonstrated across a variety of taxa (Simpson & Simpson, 1989 Elosegi, 2013), and it has also been shown that low-quality food items have shorter gut transit times compared with high-quality food items (Mitra & Flynn, 2007). Instead, we saw no difference between 95% and 100% pellet qualities on growth in the third instar, although we did see a treatment difference in biomass growth in the fourth instar.…”

Section: Discussionsupporting

confidence: 43%

Food quality effects on instar‐specific life histories of a holometabolous insect

Holmes

Nelson

Lougheed

2020

Ecology and Evolution

View full text Add to dashboard Cite

1. It is a long-standing challenge to understand how changes in food resources impact consumer life history traits and, in turn, impact how organisms interact with their environment. To characterize food quality effects on life history, most studies follow organisms throughout their life cycle and quantify major life events, such as age at maturity or fecundity. From these studies, we know that food quality generally impacts body size, juvenile development, and life span. Importantly, throughout juvenile development, many organisms develop through several stages of growth that can have different interactions with their environment. For example, some parasitoids typically attack larger instars, whereas larval insect predators typically attack smaller instars. Interestingly, most studies lump all juvenile stages together, which ignores these ecological changes over juvenile development.2. We combine a cross-sectional experimental approach with a stage-structured population model to estimate instar-specific vital rates in the bean weevil, Callosobruchus maculatus across a food quality gradient. We characterize food quality effects on the bean weevil's life history traits throughout its juvenile ontogeny to test how food quality impacts instar-specific vital rates.3. Vital rates differed across food quality treatments within each instar; however, their effect differed with instar. Weevils consuming low-quality food spent 38%, 37%, and 18% more time, and were 34%, 53%, and 63% smaller than weevils consuming high-quality food in the second, third, and fourth instars, respectively.Overall, our results show that consuming poor food quality means slower growth, but that food quality effects on vital rates, growth and development are not equal across instars. Differences in life history traits over juvenile ontogeny in response to food quality may impact how organisms interact with their environment, including how susceptible they are to predation, parasitism, and their competitive ability. K E Y W O R D Scowpea weevil, juvenile ontogeny, phytophagous consumer, stage-structured population model | 627 HOLMES Et aL.

show abstract

“…This finding suggests that some measures of feeding (amount consumed) are enhanced by plant defenses in some plants and herbivores. This may be interpreted as evidence for compensatory feeding where herbivores consume plant material in higher amounts to compensate for the low nutritional value of the diet (Slansky et al, 1985;Suzuki-Ohno et al, 2012;Flores et al, 2014). If this is the case, herbivores are showing an adaptive response to nutritionally poor tissue by increasing their consumption.…”

Section: Defensive Mechanismsmentioning

confidence: 99%

Does plant apparency matter? Thirty years of data provide limited support but reveal clear patterns of the effects of plant chemistry on herbivores

2016

View full text Add to dashboard Cite

SummaryAccording to the plant-apparency hypothesis, apparent plants allocate resources to quantitative defenses that negatively affect generalist and specialist herbivores, while unapparent plants invest more in qualitative defenses that negatively affect nonadapted generalists. Although this hypothesis has provided a useful framework for understanding the evolution of plant chemical defense, there are many inconsistencies surrounding associated predictions, and it has been heavily criticized and deemed obsolete.We used a hierarchical Bayesian meta-analysis model to test whether defenses from apparent and unapparent plants differ in their effects on herbivores. We collected a total of 225 effect sizes from 158 published papers in which the effects of plant chemistry on herbivore performance were reported.As predicted by the plant-apparency hypothesis, we found a prevalence of quantitative defenses in woody plants and qualitative defenses in herbaceous plants. However, the detrimental impacts of qualitative defenses were more effective against specialists than generalists, and the effects of chemical defenses did not significantly differ between specialists and generalists for woody or herbaceous plants.A striking pattern that emerged from our data was a pervasiveness of beneficial effects of secondary metabolites on herbivore performance, especially generalists. This pattern provides evidence that herbivores are evolving effective counteradaptations to putative plant defenses.

show abstract

Compensatory feeding of a stream detritivore alleviates the effects of poor food quality when enough food is supplied

Cited by 55 publications

References 47 publications

Impact of water abstraction on storage and breakdown of coarse organic matter in mountain streams

Impact of water abstraction on storage and breakdown of coarse organic matter in mountain streams

Food quality effects on instar‐specific life histories of a holometabolous insect

Does plant apparency matter? Thirty years of data provide limited support but reveal clear patterns of the effects of plant chemistry on herbivores

Contact Info

Product

Resources

About