Carbon allocation to growth and storage in two evergreen species of contrasting successional status

Piper, Frida I.; Sepúlveda, Paulina; Bustos‐Salazar, Angela; Zúñiga‐Feest, Alejandra

doi:10.3732/ajb.1700057

Cited by 8 publications

(5 citation statements)

References 47 publications

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“…While this study suggests that the rebuilt of storage after drought does not occur at the expens of growth, droughts could cause C storage reductions in other systems, particularly in isohydric species (McDowell et al, 2008(McDowell et al, , 2011Brodribb et al, 2014). In such cases, C replenishment could take place earlier than growth recovery, similarly to what has been observed following periods of severe defoliation (Palacio et al, 2012;Piper et al, 2015Piper et al, , 2017bWiley et al, 2017). Post-drought responses of C allocation could also depend on tree age.…”

Section: Introductionmentioning

confidence: 58%

Low Growth Sensitivity and Fast Replenishment of Non-structural Carbohydrates in a Long-Lived Endangered Conifer After Drought

et al. 2020

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Section: Introductionmentioning

confidence: 58%

Low Growth Sensitivity and Fast Replenishment of Non-structural Carbohydrates in a Long-Lived Endangered Conifer After Drought

et al. 2020

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“…Nonetheless, although growth is rarely C limited under natural conditions, tree survival could be. For example, disturbances that involve the removal of photosynthetic tissues, like folivory or fire, reduce C storage by reducing the C returns of the removed leaf cohort and by supporting regrowth before stores had achieved full C replenishment [16][17][18]. Additionally, regrowth after severe folivory is often sparse and characterized by smaller and nutritionally poorer leaves than the foliage lost to herbivores [19,20], in turn rendering low C return.…”

Section: Introductionmentioning

confidence: 99%

The Role of Nonstructural Carbohydrates Storage in Forest Resilience under Climate Change

Piper

Paula

2020

Curr Forestry Rep

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Purpose of Review Nonstructural carbohydrates (NSC) promote tree survival when photosynthesis is impeded by factors whose impact is expected to increase under climate change, like droughts, herbivory, and fires. Nonetheless, it remains unclear whether NSC are depleted under natural conditions and if they mediate tree recovery. To determine if there is a general pattern of NSC variation, we reviewed the recent (2008–2018) literature reporting NSC changes in response to droughts, insect herbivory, and fires, in woody species under natural conditions. Recent Findings We found 25 cases in 16 studies examining NSC dynamics post-drought, most of them conducted in species of Pinaceae or Fagaceae in Mediterranean Europe. Drought-affected trees had lower NSC, starch, and sugars concentrations than unaffected counterparts, although these results were entirely driven by roots and trunks of Pinaceae. We found only six studies examining NSC responses to herbivory, which indicate both increases and decreases in NSC concentrations inconsistently related to changes in growth or survival. Fire led to consistent decreases in NSC that mediated a successfully regrowth in absence of drought. Summary NSC decrease related equivocally to the occurrence of drought, fire, and herbivory and also to post-disturbance recovery, indicating no clear pattern of decreasing forest resilience under current climate change. An exception seems to be Pinaceae, which showed decreased NSC and performance in response to drought or herbivory. We suggest that a more water conservative strategy and smaller NSC pools in gymnosperms relative to angiosperms underlie these results.

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“…Although some studies have found evidence linking seedling shade tolerance to carbon allocation to storage (Canham et al 1999, Kitajima 1994, Poorter and Kitajima 2007, several others did not (Canham et al 1999, Lusk and Piper 2007, Piper 2015, Piper et al 2009, 2017. One possible explanation for the discrepancy is that, in some regions, the levels of understorey herbivory are insufficient to select for herbivory tolerance.…”

Section: Introductionmentioning

confidence: 71%

Global patterns of insect herbivory in gap and understorey environments, and their implications for woody plant carbon storage

Piper

Altmann²,

Lusk

2018

Oikos

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Insect herbivory is thought to favour carbon allocation to storage in juveniles of shade-tolerant trees. This argument assumes that insect herbivory in the understorey is sufficiently intense as to select for storage; however, understoreys might be less attractive to insect herbivores than canopy gaps, because of low resource availability and -at temperate latitudes -low temperatures. Although empirical studies show that shade-tolerant species in tropical forests do allocate more photosynthate to storage than their light-demanding associates, the same pattern has not been consistently observed in temperate forests. Does this reflect a latitudinal trend in the relative activity of insect herbivory in gap versus understorey environments? To date there has been no global review of the effect of light environment on insect herbivory in forests. We postulated that if temperature is the primary factor limiting insect herbivory, the effect of gaps on rates of insect herbivory should be more evident in temperate than in tropical forests; due to low growing season temperatures in the oceanic temperate forests of the Southern Hemisphere, the effect of gaps on insect herbivory rates should in turn be stronger there than in the more continental temperate climates of the Northern Hemisphere. We examined global patterns of insect herbivory in gaps versus understories through meta-analysis of 87 conspecific comparisons of leaf damage in contrasting light environments. Overall, insect herbivory in gaps was significantly higher than in the understorey; insect herbivory was 50% higher in gaps than in understoreys of tropical forests but did not differ significantly between gaps and understories in temperate forests of either hemisphere. Results are consistent with the idea that low resource availability -and not temperature -limits insect herbivore activity in forest understoreys, especially in the tropics, and suggest the selective influence of insect herbivory on late-successional tree species may have been over-estimated.

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Carbon allocation to growth and storage in two evergreen species of contrasting successional status

Abstract: In low light, prioritized C storage instead of growth, whereas prioritized growth and lateral branching. Our results suggest that shade tolerance depends on efficient light capture rather than C conservation traits.

Cited by 8 publications

References 47 publications

Low Growth Sensitivity and Fast Replenishment of Non-structural Carbohydrates in a Long-Lived Endangered Conifer After Drought

Low Growth Sensitivity and Fast Replenishment of Non-structural Carbohydrates in a Long-Lived Endangered Conifer After Drought

The Role of Nonstructural Carbohydrates Storage in Forest Resilience under Climate Change

Global patterns of insect herbivory in gap and understorey environments, and their implications for woody plant carbon storage

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