Diversity of forest management promotes parasitoid functional diversity in boreal forests

Rodríguez, Antonio Rigueiro; Pohjoismäki, Jaakko L. O.; Kouki, Jari

doi:10.1016/j.biocon.2019.108205

Cited by 17 publications

(8 citation statements)

References 63 publications

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“…For biodiversity conservation and ecosystem services, this phenomenon is a drawback because mixed-species forests can provide important benefits. For example, they host greater species richness, are more resistant to pests and pathogens and have a higher capacity for carbon sequestration (Gamfeldt et al, 2013;Brockerhoff et al, 2017;Ampoorter et al 2019;Rodríguez et al 2019). Both living and dead deciduous trees play an important role in diversifying the structure and species composition of boreal forests (Kouki et al 2004).…”

Section: Introductionmentioning

confidence: 99%

A keystone species, European aspen (Populus tremula L.), in boreal forests: Ecological role, knowledge needs and mapping using remote sensing

Kivinen

Koivisto

Keski‐Saari

et al. 2020

Forest Ecology and Management

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Section: Introductionmentioning

confidence: 99%

A keystone species, European aspen (Populus tremula L.), in boreal forests: Ecological role, knowledge needs and mapping using remote sensing

Kivinen

Koivisto

Keski‐Saari

et al. 2020

Forest Ecology and Management

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“…Esta afirmación es difícil de evaluar en ausencia de estudios previos acerca de la entomofauna nativa de la zona donde se liberó la nueva especie exótica. Sin embargo, resulta cuestionable considerando que la estructuración trófica de las comunidades de insectos en los ecosistemas terrestres considera comúnmente un tercer y cuarto nivel trófico donde se sostienen parasitoides e hiperparasitoides nativos a cada hábitat (Rodríguez et al, 2019;Pedroso et al, 2021). Por lo tanto, asumir que el desplazamiento de especies por introducción de especies solo afectaría a especies exóticas previamente establecidas es poco probable y resulta especialmente delicado si se considera que el objetivo de tales liberaciones es el establecimiento del nuevo controlador, al menos en el control biológico clásico.…”

Section: Familiaunclassified

Parasitic wasps (Hymenoptera) and Biological Control in Chile: Applications and Potentials

FERNANDEZ,

ARAUJO,

HERRERA

et al. 2023

Rev. Soc. Entomol. Arg.

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Global biodiversity decline and pollution, along with climate change, directly threaten food security and sovereignty. Unsustainable practices in industrial agriculture, including the introduction of non-native insects exacerbate this environmental crisis. These can invade native habitats and disrupt the ecological balance, leading to biodiversity loss. We created a database of parasitic wasp species used for biological control in Chile, examining the percentage of introduced and native species, introduction timelines, and host interactions. A total of 73% of the Hymenoptera used for biological control in Chile are exotic species. This trend has grown over decades as new species were continuously introduced, resulting in an increasing accumulation of exotic species. We also identified instances of native and introduced parasitoid species sharing the same hosts, potentially causing a spillover effect. Given Chile's high endemism in its insect population, the massive introduction of exotic species could have detrimental consequences for local biodiversity and agricultural ecosystems. Overreliance on non-native pest controllers impedes the use of existing native biological control species, increasing vulnerability to pests adapted to widely used biological control agents. We advocate for prioritizing local and native parasitic wasps to ensure long-lasting, and sustainable agriculture production in Chile while mitigating the negative impacts of exotic species.

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“…Similarly, populations of European sawfly ( Neodiprion sertifer ) experience greater rates of parasitism in mixed forests [ 58 ]. Finally, increased forest heterogeneity and structural diversity increase parasitoid diversity and abundance in the boreal forest [ 59 ]. Diverse stands can thus increase forest resistance by hiding host trees and supporting natural enemies [ 52 ].…”

Section: Stand-scale Mitigation Strategiesmentioning

confidence: 99%

“…Finally, increased forest heterogeneity and structural diversity increase Fig. 2 Synchronism of insect emergence facilitated when tree phenology occurs predictably over a short time window in panel 1 rather than for a tree species with a less predictable or more variable growth phenology (panel 2) parasitoid diversity and abundance in the boreal forest [59]. Diverse stands can thus increase forest resistance by hiding host trees and supporting natural enemies [52].…”

Section: Stand-scale Mitigation Strategiesmentioning

confidence: 99%

The Vision of Managing for Pest-Resistant Landscapes: Realistic or Utopic?

et al. 2021

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Purpose of Review Forest managers have long suggested that forests can be made more resilient to insect pests by reducing the abundance of hosts, yet this has rarely been done. The goal of our paper is to review whether recent scientific evidence supports forest manipulation to decrease vulnerability. To achieve this goal, we first ask if outbreaks of forest insect pests have been more severe in recent decades. Next, we assess the relative importance of climate change and forest management–induced changes in forest composition/structure in driving these changes in severity. Recent Findings Forest structure and composition continue to be implicated in pest outbreak severity. Mechanisms, however, remain elusive. Recent research elucidates how forest compositional and structural diversity at neighbourhood, stand, and landscape scales can increase forest resistance to outbreaks. Many recent outbreaks of herbivorous forest insects have been unprecedented in terms of duration and spatial extent. Climate change may be a contributing factor, but forest structure and composition have been clearly identified as contributing to these unprecedented outbreaks. Summary Current research supports using silviculture to create pest-resistant forest landscapes. However, the precise mechanisms by which silviculture can increase resistance remains uncertain. Further, humans tend to more often create pest-prone forests due to political, economic, and human resistance to change and a short-sighted risk management perspective that focuses on reactive rather than proactive responses to insect outbreak threats. Future research efforts need to focus on social, political, cultural, and educational mechanisms to motivate implementation of proven ecological solutions if pest-resistant forests are to be favoured by management.

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Diversity of forest management promotes parasitoid functional diversity in boreal forests

Cited by 17 publications

References 63 publications

A keystone species, European aspen (Populus tremula L.), in boreal forests: Ecological role, knowledge needs and mapping using remote sensing

A keystone species, European aspen (Populus tremula L.), in boreal forests: Ecological role, knowledge needs and mapping using remote sensing

Parasitic wasps (Hymenoptera) and Biological Control in Chile: Applications and Potentials

The Vision of Managing for Pest-Resistant Landscapes: Realistic or Utopic?

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