Biodiversité
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Revue de presse et du net par le Pôle de partage des connaissances S&T de l'Office français de la biodiversité
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Effets du changement climatique sur la biodiversité en Nouvelle-Aquitaine. Retour sur 6 ans de suivis, d'analyse et de recherche

Effets du changement climatique sur la biodiversité en Nouvelle-Aquitaine. Retour sur 6 ans de suivis, d'analyse et de recherche | Biodiversité | Scoop.it

Alors que nous sommes toujours lancés sur la trajectoire d’un réchauffement de +4°C d’ici 2100, naturalistes et chercheurs se sont posés une question : que restera-t-il de la faune et de la flore à cet horizon en Nouvelle-Aquitaine ? Papillons, lézards, grenouilles, marmottes, libellules, criquets et végétation de leurs habitats… bon nombre des espèces sentinelles du climat suivies depuis 6 ans verront leurs populations s’amoindrir, leurs aires de répartition se réduire peu à peu jusqu’à parfois disparaître. La biodiversité néo-aquitaine actuelle est inexorablement vouée à un appauvrissement drastique.

DocBiodiv's insight:

Télécharger la synthèse des résultats : https://bit.ly/Sentinelles_Synthèse

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Dans les Pyrénées, marmottes et papillons jouent les « sentinelles du climat »

Dans les Pyrénées, marmottes et papillons jouent les « sentinelles du climat » | Biodiversité | Scoop.it

Certaines espèces sédentaires subissent déjà les conséquences du réchauffement. 

DocBiodiv's insight:

Reportage aux côtés du chargé de mission de Cistude Nature, association loi 1901, agréée au niveau régional au titre de la protection de la nature https://www.cistude.org

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No place like home: Species are on the move, but many have nowhere to go

No place like home: Species are on the move, but many have nowhere to go | Biodiversité | Scoop.it
Many insects moving north in response to climate change find they have nowhere to go in Britain's intensively managed landscapes, according to new research.
DocBiodiv's insight:

Philip J. Platts et al. Habitat availability explains variation in climate-driven range shifts across multiple taxonomic groups, Scientific Reports (2019). DOI: 10.1038/s41598-019-51582-2

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Decline in UK butterflies caused by mild winter

Decline in UK butterflies caused by mild winter | Biodiversité | Scoop.it

Some of Britain’s most beautiful butterflies are being killed off by mild winters, conservations have said. The colourful insects suffered ‘one of their worst years on record’ in 2016 with 40 of the 57 species assessed in the annual UK Butterfly Monitoring Scheme declining compared to the previous 12 months.

DocBiodiv's insight:
The UK Butterfly Monitoring Scheme (UKBMS) http://www.ukbms.org/
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International Conference blues in the Marshes

International Conference blues in the Marshes | Biodiversité | Scoop.it

Water Authority Aa & Maas organises an International Water Conference on Thursday the 6th and Friday the 7th of July. Goal of the conference is to share and discuss the knowledge gained with the nature restoration and water storage project. The main subjects of discussion during these two days are hydrology, climate change and nature conservation including saving the rare butterfly Scarce Large Blue.

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Le réchauffement climatique met en péril certains papillons

Le réchauffement climatique met en péril certains papillons | Biodiversité | Scoop.it
Le réchauffement climatique met en péril certaines espèces de papillons de Grande-Bretagne, qui risquent de disparaître d'ici 2050, une menace qui pèse également sur d'autres pays européens, ont averti lundi des scientifiques.

Via Pescalune
DocBiodiv's insight:

L'étude à retrouver sur le site de la revue Nature Climate Change:

Interacting effects of climate change and habitat fragmentation on drought-sensitive butterfliesTom H. Oliver, Harry H. Marshall, Mike D. Morecroft, Tom Brereton, Christel Prudhomme & Chris Huntingfordhttp://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate2746.html

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Bioclimatic context of species' populations determines community stability.

Bioclimatic context of species' populations determines community stability. | Biodiversité | Scoop.it

It is important to understand the factors affecting community stability because ecosystem function is increasingly at risk from biodiversity loss. Here, we evaluate how a key factor, the position of local environmental conditions within the thermal range of the species, influences the stability of butterfly communities at a continental scale.

Location Spain, UK and Finland.

Time period 1999–2017. Major taxa studied Butterflies.

DocBiodiv's insight:

via @GEB_macro Evans, L. C., Melero, Y., Schmucki, R., Boersch-Supan & al. (2022). Global Ecology and Biogeography, 00, 1– 14. https://doi.org/10.1111/geb.13527

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Climate change is forcing butterflies and moths to adapt – but some species can't

Climate change is forcing butterflies and moths to adapt – but some species can't | Biodiversité | Scoop.it

We looked at 130 species to see which will be the winners and losers from global warming;

Butterflies are rather like Goldilocks, preferring conditions to be neither too hot nor too cold, but “just right”. Under climate change, the temperature at any given time of summer is, on average, getting warmer, leaving butterflies (and their nocturnal cousins, the moths) with the challenge of how to remain in their optimal temperature window.

DocBiodiv's insight:

Par Callum Macgregor , Postdoctoral Research Associate, University of York

Lire :  Macgregor, C.J., Williams, J.H., Bell, J.R. et al. Moth biomass increases and decreases over 50 years in Britain. Nat Ecol Evol (2019) https://doi.org/10.1038/s41559-019-1028-6

Voir aussi : Bucking the trend: the diversity of Anthropocene ‘winners’ among British moths Boyes, Douglas H. Fox, Richard Shortall, Chris R. Whittaker, Robert J. Frontiers of Biogeography

Volume 11, Issue 3 2019 https://doi.org/10.21425/F5FBG43862

 

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Climate change helps colourful creatures spread their wings - The Times

Climate change helps colourful creatures spread their wings - The Times | Biodiversité | Scoop.it
From the green-fanged tube web spider with a nasty bite to the Asian box tree caterpillar that destroys hedges, Britain’s wildlife is looking a little more exotic in places.Climate change has caused dozens of species to colonise new parts of the country in the past decade, a study has found. GETTY
DocBiodiv's insight:

Article complet réservé aux abonnés, retrouvez des infos sur cette étude via Zoological Society of London (ZSL) 

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Compter les papillons pour observer le changement climatique

Compter les papillons pour observer le changement climatique | Biodiversité | Scoop.it
Le muséum d'histoire naturelle et l'Harmas appellent les particuliers à compter le nombre de papillons pour constater l'évolution du changement climatique.
DocBiodiv's insight:
Observatoire de la biodiversité des jardins : http://obj.mnhn.fr/
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Large extents of intensive land use limit community reorganization during climate warming

Large extents of intensive land use limit community reorganization during climate warming | Biodiversité | Scoop.it

Climate change is increasingly altering the composition of ecological communities, in combination with other environmental pressures such as high‐intensity land use. Pressures are expected...

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