• Aucun résultat trouvé

Range expansion of the pine processionary moth under climate change: Research directions on the responses to thermal heterogeneity

N/A
N/A
Info
Télécharger
Protected

Academic year: 2021

Partager "Range expansion of the pine processionary moth under climate change: Research directions on the responses to thermal heterogeneity"

Copied!
2
0
0

Chargement.... (Voir le texte intégral maintenant)

Texte intégral

(1)

HAL Id: hal-02738806

https://hal.inrae.fr/hal-02738806

Submitted on 2 Jun 2020

HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci- entific research documents, whether they are pub- lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

Range expansion of the pine processionary moth under climate change: Research directions on the responses to

thermal heterogeneity

Mathieu Laparie, Alain Roques, Christelle Robinet

To cite this version:

Mathieu Laparie, Alain Roques, Christelle Robinet. Range expansion of the pine processionary moth under climate change: Research directions on the responses to thermal heterogeneity. Colloque Na- tional du Groupement de Recherche Invasions Biologiques, Oct 2014, Rennes, France. 88 p., 2014, Col- loque National du Groupement de Recherche Invasions Biologiques, GdR 3647 Invasions Biologiques.

�hal-02738806�

(2)

Liste des participants

83

POSTER

POSTER

Laparie M

1

, Robinet C.

1

, Roques A.

1

1

INRA UR0633, Unité de Recherche de Zoologie Forestière (URZF), Orléans, France

P OSTER 11 – R ANGE EXPANSION OF THE PINE PROCESSIONARY MOTH UNDER CLIMATE CHANGE : RESEARCH DIRECTIONS ON THE RESPONSES TO THERMAL HETEROGENEITY Climate warming is assumed as the main factor driving rapid expansion of the pine processionary moth in Europe, by broadening habitat suitability during its winter development. Nonetheless, the way this insect deals with climate heterogeneity at the range edge has not been fully untangled. Yet, this is critical to understand its sustained expansion despite conditions close to developmental limits during uneven years or stochastic extreme events.

Mitigating responses range from gregarious life in sheltering silk tents to

prolonged diapause, which ensures recruitment of individuals even following

years of extreme larval mortality (uneven winter near distribution margins). It

may also include physiological plasticity and its evolution across the expansion

succession due to positive selection on thermal tolerance. The ecological

relevance of such responses directly depends on local conditions and their

predictability, which vary along altitudinal and latitudinal gradients, or from

oceanic to continental climates. The heterogeneity of climate through space

and time therefore appears as a critical selective pressure on pine

processionary moth’s life histories. Its rapid expansion may consequently

promote differentiation of populations throughout its range. This poster will

detail research directions of a new project aiming at investigating the

mechanisms of such responses and associated variability. It should ultimately

allow testing the spatio-temporal structuration of the variation observed

within and among populations. Untangling how pine processionary moth’s life

histories are impacted by climate heterogeneity and expansion history may

prove being crucial for (1) understanding success or failure under challenging

conditions, and (2) improving predictive models of phenology and expansion.

Références

Télécharger maintenant ( PDF - 2 Page - 186.77 KB )

Documents relatifs

Predictions of avian Plasmodium expansion under climate change.

Based on our empirical data, we mapped malaria distribution under climate change scenarios and predicted that Plasmodium occurrence will spread to regions in northern France, and

Cracking the Code of Biodiversity Responses to Past Climate Change

Recorded biological responses in paleo-records can be used as the testing ground of models deeply rooted in competing ecological and evolutionary theories (Figure 2) [103].

Expansion under climate change: the genetic consequences

range expansions under climate change, the presence of moving climate envelopes can constrain the leading edge of the population in its expansion relative to the core of the

In the wake of Paris Agreement, scientists must embrace new directions for climate change research

The need to better estimate the magnitude of the climate response to greenhouse gases, and its regional aspects in re- lation to adaptation strategies, cannot be overstated?.

Looking beyond the large scale effects of global change: local phenologies can result in critical heterogeneity in the Pine Processionary Moth

Following Huchon and Démolin (1970) , phenology variability is mainly limited by three stage-specific constraints: (a) first instar larvae (L1) are vulnerable to high

Range expansion of the Pine Processionary Moth in Europe - I. Mechanisms underlying PPM expansion in France in relation to global warming

Department of Agriculture interagency research forum on gypsy moth and other invasive species 2005 GTR-NE-337 RANGE EXPANSION OF THE PINE PROCESSIONARY MOTH IN EUROPE..

Modelling the Pine Processionary Moth range expansion in the Paris Basin

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des

Termination of pupal diapause in the pine processionary moth Thaumetopoea pityocampa

In the present study, in an attempt to understand the diapause mechanism of pine processionary moth pupae, we characterize pre-termination (comprising so-called diapause initiation