Effects of experimental warming at the microhabitat scale on oak leaf traits and insect herbivory across a contrasting environmental gradient

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Effects of experimental warming at the microhabitat scale on oak leaf traits and insect herbivory across a contrasting environmental gradient

Moreira, Xoaquin (author)

Abdala-Roberts, Luis (author)

Lago-Nunez, Beatriz (author)

Cao, Ana (author)

De Pauw, Karen (author)

De Ro, Annelore (author)

Gasperini, Cristina (author)

Hedwall, Per-Ola (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för sydsvensk skogsvetenskap,Southern Swedish Forest Research Centre

Iacopetti, Giovanni (author)

Lenoir, Jonathan (author)

Meeussen, Camille (author)

Plue, Jan (author): Stockholms universitet,Institutionen för naturgeografi,Stockholm University

Sanczuk, Pieter (author)

Selvi, Federico (author)

Spicher, Fabien (author)

Vanden Broeck, An (author)

De Frenne, Pieter (author)

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(creator_code:org_t)

2024
2024
English.
In: Oikos. - 0030-1299 .- 1600-0706. ; :1

Related links:: https://doi.org/10.1...; show more...; https://pub.epsilon.... (primary) (Raw object) (free); https://urn.kb.se/re...; https://doi.org/10.1...; https://res.slu.se/i...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

Forest microclimatic variation can result in substantial temperature differences at local scales with concomitant impacts on plant defences and herbivory. Such microclimatic effects, however, may differ across abiotically contrasting sites depending on background environmental differences. To test these cross-scale effects shaping species ecological and evolutionary responses, we experimentally tested the effects of aboveground microhabitat warming on insect leaf herbivory and leaf defences (toughness, phenolic compounds) for saplings of sessile oak Quercus petraea across two abiotically contrasting sites spanning 9(degrees) latitude. We found higher levels of herbivory at the low-latitude site, but leaf traits showed mixed patterns across sites. Toughness and condensed tannins were higher at the high-latitude site, whereas hydrolysable tannins and hydroxycinnamic acids were higher at the low-latitude site. At the microhabitat scale, experimental warming increased herbivory, but did not affect any of the measured leaf traits. Condensed tannins were negatively correlated with herbivory, suggesting that they drive variation in leaf damage at both scales. Moreover, the effects of microhabitat warming on herbivory and leaf traits were consistent across sites, i.e. effects at the microhabitat scale play out similarly despite variation in factors acting at broader scales. These findings together suggest that herbivory responds to both microhabitat (warming) and broad-scale environmental factors, whereas leaf traits appear to respond more to environmental factors operating at broad scales (e.g. macroclimatic factors) than to warming at the microhabitat scale. In turn, leaf secondary chemistry (tannins) appears to drive both broad-scale and microhabitat-scale variation in herbivory. Further studies are needed using reciprocal transplants with more populations across a greater number of sites to tease apart plant plasticity from genetic differences contributing to leaf trait and associated herbivory responses across scales and, in doing so, better understand the potential for dynamics such as local adaptation and range expansion or contraction under shifting climatic regimes.

Subject headings

NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)

Keyword

latitudinal variation
microclimate
phenolic compounds
plant-herbivore interactions
Quercus petraea
saplings

Publication and Content Type

ref (subject category)
art (subject category)

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By the author/editor: Moreira, Xoaquin; Abdala-Roberts, ...; Lago-Nunez, Beat ...; Cao, Ana; De Pauw, Karen; De Ro, Annelore; show more...; Gasperini, Crist ...; Hedwall, Per-Ola; Iacopetti, Giova ...; Lenoir, Jonathan; Meeussen, Camill ...; Plue, Jan; Sanczuk, Pieter; Selvi, Federico; Spicher, Fabien; Vanden Broeck, A ...; De Frenne, Piete ...; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Ecology

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Climate Research

NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Botany

Articles in the publication: Oikos

By the university: Stockholm University; Swedish University of Agricultural Sciences

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