Green alder decline in the Italian Alps

Pisetta, M.; Montecchio, Lucio; Longa, C.M.O.; Salvadori, C.; Zottele, Fabio; Maresi, G.

doi:10.1016/j.foreco.2012.06.024

Cited by 14 publications

(17 citation statements)

References 19 publications

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“…In fact, contacts between sheep parasites and companion dogs are likely to occur because even though Milan with its territory is highly urbanized rural areas crossed by transhumant flocks from the PreAlpine areas are still present. Furthermore, unlike other regions such as Tuscany, Liguria, and Emilia Romagna, Lombardy is not characterised by immigration of shepherds and flocks from Sardinia or southern Italy; thus, it can be hypothesised that the presence of sheep nasal bot fly in the studied area is a consequence of temperature increase as observed in several surveys conducted in northern Italy [ 22 – 24 ]. Climate change there might have favoured a habitat more suitable to adult flies survival, as emphasized by some authors [ 25 ].…”

Section: Discussionmentioning

confidence: 88%

Oestrus ovisL. (Diptera: Oestridae) Induced Nasal Myiasis in a Dog from Northern Italy

Zanzani

Cozzi

Olivieri

et al. 2016

Case Reports in Veterinary Medicine

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A companion dog from Milan province (northern Italy), presenting with frequent and violent sneezing, underwent rhinoscopy, laryngoscopy, and tracheoscopy procedures. During rhinoscopy, a dipteran larva was isolated from the dog and identified as first instar larval stage of O. ovis by morphological features. Reports of O. ovis in domestic carnivores are sporadic and nevertheless this infestion should be considered as a possible differential diagnosis of rhinitis in domestic carnivores living in contaminated areas by the fly as consequence of the presence of sheep and goats. This report described a case of autochthonous infestion in a dog from an area where O. ovis was not historically present but it could be affected by a possible expansion of the fly as a consequence of climate change. This is the first record of Oestrus ovis infestion in a dog in Italy and, at the same time, the most northerly finding of larvae of sheep bot fly in the country.

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Section: Discussionmentioning

confidence: 88%

Oestrus ovisL. (Diptera: Oestridae) Induced Nasal Myiasis in a Dog from Northern Italy

Zanzani

Cozzi

Olivieri

et al. 2016

Case Reports in Veterinary Medicine

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“…Ref. [31] also suggested that reduction of snow cover could predispose alder stems to frost drought, reducing their vitality and inducing decline of stands with the participation of biotic agents (fungi, insects). Because A. alnobetula has symbiotic association with nitrogen-fixing bacteria, it is highly unlikely that the direct relationship found between January precipitation (as a proxy of snow depth) and RG is related to an increase in nutrient supply caused by increase in microbial activity under higher snow depth [64,65].…”

Section: Climate Forcing Of Radial Stem Growth Of Alnus Alnobetulamentioning

confidence: 99%

“…There is a growing need to better understand the drivers of growth of A. alnobetula to improve projections of vegetation change at the alpine treeline ecotone. Radial growth indices are known to be valuable long-term measures of overall tree and shrub vigour (e.g., [29][30][31]) and dendroclimatological methods ("response functions") are frequently applied to identify the climatic factors most closely associated with variations in tree and shrub growth (e.g., [32][33][34][35]). Because shrubs can provide a multi-decadal record of environmental change, analysing growth over time and climate-growth relationships allow determination of the influence of climate warming and climate extremes on growth processes.…”

Section: Introductionmentioning

confidence: 99%

Radial Stem Growth of the Clonal Shrub Alnus alnobetula at Treeline Is Constrained by Summer Temperature and Winter Desiccation and Differs in Carbon Allocation Strategy Compared to Co-Occurring Pinus cembra

Oberhuber

Wieser

Bernich

et al. 2022

Forests

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Green alder (Alnus alnobetula) is currently the most expanding shrub species in the Alps. Because dense thickets impair tree establishment, understanding how climate affects shrub growth is essential for predictions of treeline dynamics. We evaluated ring width data from >50 A. alnobetula stems sampled at treeline on Mt. Patscherkofel (Central European Alps, Austria) to identify main climatic drivers and influence of climate warming on radial stem growth (RG). We also compared RG of A. alnobetula with RG of the co-occurring treeline conifer Swiss stone pine (Pinus cembra). We addressed our questions through calculation of response functions and evaluation of climate in years showing exceptional growth deviations. Response function analyses and evaluation of growth trends during 1991–2020 revealed that RG of A. alnobetula is significantly and directly related to summer temperatures. Precipitation in January also showed a direct relationship to RG, indicating effects of frost drought on RG. Surprisingly, nitrogen fixing A. alnobetula showed strikingly lower RG compared to P. cembra, and the latter also responded more strongly to the increase in summer temperature in the course of climate warming. We explain these findings by different carbon allocation strategies, i.e., preference of “vertical” stem growth in late successional P. cembra vs. favoring “horizontal” spread in the pioneer shrub A. alnobetula.

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“…viridis , causing a twig colonization and canker disease involved in green alder decline (Pisetta et al 2012); also known from Alnus glutinosa, A. incana, A. incana var . tenuifolia, A. rubra, A. viridis ssp.…”

mentioning

confidence: 99%

Fungal Planet description sheets: 128–153

Crous¹,

Shivas²,

Wingfield³

et al. 2012

Pers - Int Mycol J

119

125

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Novel species of microfungi described in the present study include the following from Australia: Catenulostroma corymbiae from Corymbia, Devriesia stirlingiae from Stirlingia, Penidiella carpentariae from Carpentaria, Phaeococcomyces eucalypti from Eucalyptus, Phialophora livistonae from Livistona, Phyllosticta aristolochiicola from Aristolochia, Clitopilus austroprunulus on sclerophyll forest litter of Eucalyptus regnans and Toxicocladosporium posoqueriae from Posoqueria. Several species are also described from South Africa, namely: Ceramothyrium podocarpi from Podocarpus, Cercospora chrysanthemoides from Chrysanthemoides, Devriesia shakazului from Aloe, Penidiella drakensbergensis from Protea, Strelitziana cliviae from Clivia and Zasmidium syzygii from Syzygium. Other species include Bipolaris microstegii from Microstegium and Synchaetomella acerina from Acer (USA), Brunneiapiospora austropalmicola from Rhopalostylis (New Zealand), Calonectria pentaseptata from Eucalyptus and Macadamia (Vietnam), Ceramothyrium melastoma from Melastoma (Indonesia), Collembolispora aristata from stream foam (Czech Republic), Devriesia imbrexigena from glazed decorative tiles (Portugal), Microcyclospora rhoicola from Rhus (Canada), Seiridium phylicae from Phylica (Tristan de Cunha, Inaccessible Island), Passalora lobeliae-fistulosis from Lobelia (Brazil) and Zymoseptoria verkleyi from Poa (The Netherlands). Valsalnicola represents a new ascomycete genus from Alnus (Austria) and Parapenidiella a new hyphomycete genus from Eucalyptus (Australia). Morphological and culture characteristics along with ITS DNA barcodes are also provided.

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Green alder decline in the Italian Alps

Cited by 14 publications

References 19 publications

Oestrus ovisL. (Diptera: Oestridae) Induced Nasal Myiasis in a Dog from Northern Italy

Oestrus ovisL. (Diptera: Oestridae) Induced Nasal Myiasis in a Dog from Northern Italy

Radial Stem Growth of the Clonal Shrub Alnus alnobetula at Treeline Is Constrained by Summer Temperature and Winter Desiccation and Differs in Carbon Allocation Strategy Compared to Co-Occurring Pinus cembra

Fungal Planet description sheets: 128–153

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