Hervé Jactel

ORCID: 0000-0002-8106-5310
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About
Contact & Profiles
Research Areas
  • Forest Insect Ecology and Management
  • Ecology and Vegetation Dynamics Studies
  • Forest Ecology and Biodiversity Studies
  • Forest Management and Policy
  • Plant and animal studies
  • Insect-Plant Interactions and Control
  • Forest ecology and management
  • Entomological Studies and Ecology
  • Insect and Pesticide Research
  • Research on scale insects
  • Plant Water Relations and Carbon Dynamics
  • Species Distribution and Climate Change
  • Wildlife Ecology and Conservation
  • Entomopathogenic Microorganisms in Pest Control
  • Insect and Arachnid Ecology and Behavior
  • Insect Pheromone Research and Control
  • Botany and Plant Ecology Studies
  • Agriculture and Rural Development Research
  • Animal Ecology and Behavior Studies
  • Wildlife-Road Interactions and Conservation
  • African Botany and Ecology Studies
  • Plant Pathogens and Fungal Diseases
  • Tree-ring climate responses
  • Nematode management and characterization studies
  • Fire effects on ecosystems

Centre d'Études Scientifiques et Techniques d'Aquitaine
2016-2025

UMR BIOdiversity, GEnes & Communities
2016-2025

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2011-2025

Université de Bordeaux
2015-2024

University of California, Davis
2019

KU Leuven
2019

Georgia State University
2019

Teagasc - The Irish Agriculture and Food Development Authority
2019

University of Helsinki
2019

University of Turin
2019

Abstract The importance of biodiversity in supporting ecosystem functioning is generally well accepted. However, most evidence comes from small‐scale studies, and scaling‐up patterns biodiversity–ecosystem (B‐EF) remains challenging, part because the environmental factors shaping B‐EF relations poorly understood. Using a forest research platform which 26 functions were measured along gradients tree species richness six regions across Europe, we investigated extent potential drivers context...

10.1111/ele.12849 article EN Ecology Letters 2017-09-18

Abstract As of 2020, the world has an estimated 290 million ha planted forests and this number is continuously increasing. Of these, 131 are monospecific under intensive management. Although important in providing timber, they harbor less biodiversity potentially more susceptible to disturbances than natural or diverse forests. Here, we point out increasing scientific evidence for increased resilience ecosystem service provision functionally species (hereafter referred as forests) compared...

10.1111/conl.12829 article EN cc-by Conservation Letters 2021-07-16

Forests and trees throughout the world are increasingly affected by factors related to global change. Expanding international trade has facilitated invasions of numerous insects pathogens into new regions. Many these have caused substantial forest damage, economic impacts losses ecosystem goods services provided trees. Climate change is already affecting geographic distribution host their associated pathogens, with anticipated increases in pest both native invasive pests. Although climate...

10.1093/forestry/cpw018 article EN Forestry An International Journal of Forest Research 2016-03-22

Many experiments have shown that local biodiversity loss impairs the ability of ecosystems to maintain multiple ecosystem functions at high levels (multifunctionality). In contrast, role in driving multifunctionality landscape scales remains unresolved. We used a comprehensive pan-European dataset, including 16 measured 209 forest plots across six European countries, and performed simulations investigate how plot-scale richness tree species (α-diversity) their turnover between (β-diversity)...

10.1073/pnas.1517903113 article EN Proceedings of the National Academy of Sciences 2016-03-15

Summary Herbivore regulation is one of the services provided by plant diversity in terrestrial ecosystems. It has been suggested that tree decreases insect herbivory forests, but recent studies have reported opposite patterns, indicating can trigger associational resistance or susceptibility. The mechanisms underlying diversity–resistance relationship thus remain a matter debate. We assessed on pedunculate oak saplings ( Quercus robur ) large‐scale experiment which we manipulated and...

10.1111/1365-2745.12055 article EN Journal of Ecology 2013-01-14

Abstract There is considerable evidence that biodiversity promotes multiple ecosystem functions (multifunctionality), thus ensuring the delivery of services important for human well-being. However, mechanisms underlying this relationship are poorly understood, especially in natural ecosystems. We develop a novel approach to partition effects on multifunctionality into three and apply European forest data. show throughout Europe, tree diversity positively related with when moderate levels...

10.1038/ncomms11109 article EN cc-by Nature Communications 2016-03-24

Summary Global warming is predicted to dramatically alter communities' composition through differential colonization abilities, such as between sessile plants and their mobile herbivores. Novel interactions previously non‐overlapping species may, however, also be mediated by altered plants' responses herbivore attack. Syndromes of plant defences tolerance are driven inherited functional traits, biotic abiotic conditions, the geographical historical contingencies affecting community....

10.1111/1365-2435.12135 article EN Functional Ecology 2013-07-22

Abstract Plant functional traits can predict community assembly and ecosystem functioning are thus widely used in global models of vegetation dynamics land–climate feedbacks. Still, we lack a understanding how land climate affect plant traits. A previous analysis six observed two main axes variation: (1) size variation at the organ level (2) leaf economics balancing persistence against growth potential. The orthogonality these suggests they differently influenced by environmental drivers. We...

10.1038/s41559-021-01616-8 article EN cc-by Nature Ecology & Evolution 2021-12-23

Despite growing evidence that diverse forests play an important role in ecosystem functioning, ensuring the provision of different services, whether such diversity improves their response to drought events remains unclear. In this study, we use a large tree-ring database from thirty case studies across nine European countries and eleven species, covering Mediterranean hemiboreal forests, test if growth site specific occurred between 1975 2015 varied mixed monospecific stands. particular,...

10.1016/j.foreco.2020.118687 article EN cc-by Forest Ecology and Management 2020-10-28

Abstract Plant diversity effects on community productivity often increase over time. Whether the strengthening of is caused by temporal shifts in species-level overyielding (i.e., higher diverse communities compared with monocultures) remains unclear. Here, using data from 65 grassland and forest biodiversity experiments, we show that strength at scale underpinned changes species yield. These trends are shaped plant ecological strategies, which can be quantitatively delimited functional...

10.1038/s41467-024-46355-z article EN cc-by Nature Communications 2024-03-07

The bast scale Matsucoccus feytaudi is a specific pest of maritime pine, but the damage inflicted by insect on host trees variable, ranging from no apparent effect to severe decline pine stands. Rangewide variation mitochondrial DNA among M. populations was analysed polymerase chain reaction-restriction fragment length-single-strand conformation polymorphism (PCR-RFLP-SSCP) analysis and results compared with genetic information already available for its host. Three main nonoverlapping...

10.1046/j.1365-294x.1999.00739.x article EN Molecular Ecology 1999-10-01

In the face of unprecedented loss biodiversity, cross‐taxon correlates have been proposed as a means obtaining quantitative estimates biodiversity for identifying habitats important conservation value. Habitat type, animal trophic level, and spatial extent studies would be expected to influence strength such correlations. We investigated these effects by carrying out meta‐analysis 320 case correlations between plant species richnesses. The diversity arthropods, herps, birds, mammals...

10.1890/11-1300.1 article EN Ecology 2012-09-01
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