Early Mediterranean pine recruitment in burned and unburned Pinus nigra Arn. ssp. salzmannii stands of central Spain: Influence of species identity, provenances and post-dispersal predation

M. E. Lucas-Borja, D. Candel-Pérez, T. Onkelinx, Peter Z Fule, D. Moya, R. Gómez, J. de las Heras

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Forest sustainability depends on reliable tree regeneration but seedling survival is affected by climate change and disturbance. Based on seed introduction experiments, we compared recruitment of native pine species in central Spain in totally burned, thinned, and dense stands of Spanish black pine (Pinus nigra Arn. ssp salzmannii). Seed sources included P. nigra from three elevations bracketing its range, as well as the fire-adapted species maritime pine (P. pinaster) and the mesic-adapted species Scots pine (P. sylvestris). In addition, seed predation effect was also tested. Small and large herbivores as well as rodents were excluded using cages. All seeds had high viability in laboratory germination tests and all displayed high emergence in field trials. However, unprotected seedlings and those that emerged in thinned or dense stands did not survive the first growing season. Surviving seedlings were only found in totally burned stands. Protected P. nigra seedlings had the highest survival, reaching 23%. Protected seedlings of P. pinaster and P. sylvestris averaged 11.5% and 10.9%, respectively. Unprotected seedlings of any species had less than 2% survival. The unexpected result of higher mortality under a sheltering canopy compared with open post-wildfire conditions may be due to wetter spring during the experiment. Overall, the results indicate that native species currently still regenerate best within the environment of their present range, even though future climate or fire disturbance may lead to distributional shifts. Protection is necessary for successful pine regeneration in the study region.

Original languageEnglish (US)
Pages (from-to)203-211
Number of pages9
JournalForest Ecology and Management
Volume390
DOIs
StatePublished - Apr 15 2017

Fingerprint

Pinus nigra
provenance
predation
Spain
seedling
seedlings
seed
regeneration
seeds
disturbance
seed predation
wildfires
wildfire
native species
rodent
herbivore
germination
field experimentation
cages
viability

Keywords

  • Canopy cover
  • Maritime pine
  • Mediterranean forest
  • Natural regeneration
  • Scot pine
  • Spanish black pine

ASJC Scopus subject areas

  • Forestry
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

Cite this

Early Mediterranean pine recruitment in burned and unburned Pinus nigra Arn. ssp. salzmannii stands of central Spain : Influence of species identity, provenances and post-dispersal predation. / Lucas-Borja, M. E.; Candel-Pérez, D.; Onkelinx, T.; Fule, Peter Z; Moya, D.; Gómez, R.; de las Heras, J.

In: Forest Ecology and Management, Vol. 390, 15.04.2017, p. 203-211.

Research output: Contribution to journalArticle

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title = "Early Mediterranean pine recruitment in burned and unburned Pinus nigra Arn. ssp. salzmannii stands of central Spain: Influence of species identity, provenances and post-dispersal predation",
abstract = "Forest sustainability depends on reliable tree regeneration but seedling survival is affected by climate change and disturbance. Based on seed introduction experiments, we compared recruitment of native pine species in central Spain in totally burned, thinned, and dense stands of Spanish black pine (Pinus nigra Arn. ssp salzmannii). Seed sources included P. nigra from three elevations bracketing its range, as well as the fire-adapted species maritime pine (P. pinaster) and the mesic-adapted species Scots pine (P. sylvestris). In addition, seed predation effect was also tested. Small and large herbivores as well as rodents were excluded using cages. All seeds had high viability in laboratory germination tests and all displayed high emergence in field trials. However, unprotected seedlings and those that emerged in thinned or dense stands did not survive the first growing season. Surviving seedlings were only found in totally burned stands. Protected P. nigra seedlings had the highest survival, reaching 23{\%}. Protected seedlings of P. pinaster and P. sylvestris averaged 11.5{\%} and 10.9{\%}, respectively. Unprotected seedlings of any species had less than 2{\%} survival. The unexpected result of higher mortality under a sheltering canopy compared with open post-wildfire conditions may be due to wetter spring during the experiment. Overall, the results indicate that native species currently still regenerate best within the environment of their present range, even though future climate or fire disturbance may lead to distributional shifts. Protection is necessary for successful pine regeneration in the study region.",
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author = "Lucas-Borja, {M. E.} and D. Candel-P{\'e}rez and T. Onkelinx and Fule, {Peter Z} and D. Moya and R. G{\'o}mez and {de las Heras}, J.",
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T1 - Early Mediterranean pine recruitment in burned and unburned Pinus nigra Arn. ssp. salzmannii stands of central Spain

T2 - Influence of species identity, provenances and post-dispersal predation

AU - Lucas-Borja, M. E.

AU - Candel-Pérez, D.

AU - Onkelinx, T.

AU - Fule, Peter Z

AU - Moya, D.

AU - Gómez, R.

AU - de las Heras, J.

PY - 2017/4/15

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N2 - Forest sustainability depends on reliable tree regeneration but seedling survival is affected by climate change and disturbance. Based on seed introduction experiments, we compared recruitment of native pine species in central Spain in totally burned, thinned, and dense stands of Spanish black pine (Pinus nigra Arn. ssp salzmannii). Seed sources included P. nigra from three elevations bracketing its range, as well as the fire-adapted species maritime pine (P. pinaster) and the mesic-adapted species Scots pine (P. sylvestris). In addition, seed predation effect was also tested. Small and large herbivores as well as rodents were excluded using cages. All seeds had high viability in laboratory germination tests and all displayed high emergence in field trials. However, unprotected seedlings and those that emerged in thinned or dense stands did not survive the first growing season. Surviving seedlings were only found in totally burned stands. Protected P. nigra seedlings had the highest survival, reaching 23%. Protected seedlings of P. pinaster and P. sylvestris averaged 11.5% and 10.9%, respectively. Unprotected seedlings of any species had less than 2% survival. The unexpected result of higher mortality under a sheltering canopy compared with open post-wildfire conditions may be due to wetter spring during the experiment. Overall, the results indicate that native species currently still regenerate best within the environment of their present range, even though future climate or fire disturbance may lead to distributional shifts. Protection is necessary for successful pine regeneration in the study region.

AB - Forest sustainability depends on reliable tree regeneration but seedling survival is affected by climate change and disturbance. Based on seed introduction experiments, we compared recruitment of native pine species in central Spain in totally burned, thinned, and dense stands of Spanish black pine (Pinus nigra Arn. ssp salzmannii). Seed sources included P. nigra from three elevations bracketing its range, as well as the fire-adapted species maritime pine (P. pinaster) and the mesic-adapted species Scots pine (P. sylvestris). In addition, seed predation effect was also tested. Small and large herbivores as well as rodents were excluded using cages. All seeds had high viability in laboratory germination tests and all displayed high emergence in field trials. However, unprotected seedlings and those that emerged in thinned or dense stands did not survive the first growing season. Surviving seedlings were only found in totally burned stands. Protected P. nigra seedlings had the highest survival, reaching 23%. Protected seedlings of P. pinaster and P. sylvestris averaged 11.5% and 10.9%, respectively. Unprotected seedlings of any species had less than 2% survival. The unexpected result of higher mortality under a sheltering canopy compared with open post-wildfire conditions may be due to wetter spring during the experiment. Overall, the results indicate that native species currently still regenerate best within the environment of their present range, even though future climate or fire disturbance may lead to distributional shifts. Protection is necessary for successful pine regeneration in the study region.

KW - Canopy cover

KW - Maritime pine

KW - Mediterranean forest

KW - Natural regeneration

KW - Scot pine

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