Massenvermehrungen des HeideblattkäfersLochmaea suturalis (Thoms.) (Col., Chrysomelidae) in nordwestdeutschenCalluna-Heiden in diesem Jahrhundert

Melber, A.; Heimbach, Udo

doi:10.1007/bf01906831

Cited by 3 publications

(3 citation statements)

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“…In addition, one may criticize our study because we only observed larvae and not the full life cycle of the heather beetle. However, insect larval stages are generally considered most sensitive to environmental changes (Zalucki et al 2002), and this is particularly true for our study organism (Melber & Heimbach 1984;Melber 1989). Hence, if the larval stages are affected by climate change, then overall population growth may also be strongly affected, especially if climate change induces transient population dynamics (Tenhumberg 2010).…”

Section: Discussionmentioning

confidence: 99%

Multi‐factor climate change effects on insect herbivore performance

Scherber

Gladbach

Stevnbak

et al. 2013

Ecology and Evolution

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The impact of climate change on herbivorous insects can have far-reaching consequences for ecosystem processes. However, experiments investigating the combined effects of multiple climate change drivers on herbivorous insects are scarce. We independently manipulated three climate change drivers (CO2, warming, drought) in a Danish heathland ecosystem. The experiment was established in 2005 as a full factorial split-plot with 6 blocks × 2 levels of CO2 × 2 levels of warming × 2 levels of drought = 48 plots. In 2008, we exposed 432 larvae (n = 9 per plot) of the heather beetle (Lochmaea suturalis Thomson), an important herbivore on heather, to ambient versus elevated drought, temperature, and CO2 (plus all combinations) for 5 weeks. Larval weight and survival were highest under ambient conditions and decreased significantly with the number of climate change drivers. Weight was lowest under the drought treatment, and there was a three-way interaction between time, CO2, and drought. Survival was lowest when drought, warming, and elevated CO2 were combined. Effects of climate change drivers depended on other co-acting factors and were mediated by changes in plant secondary compounds, nitrogen, and water content. Overall, drought was the most important factor for this insect herbivore. Our study shows that weight and survival of insect herbivores may decline under future climate. The complexity of insect herbivore responses increases with the number of combined climate change drivers.

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Section: Discussionmentioning

confidence: 99%

Multi‐factor climate change effects on insect herbivore performance

Scherber

Gladbach

Stevnbak

et al. 2013

Ecology and Evolution

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“…Reduced soil water content under drought conditions may also have affected leaf water content negatively (Mattson and Haack 1987). In consequence, survival rates in drought plots dropped in week one and two, as particularly young developmental stages of L. suturalis depend on elevated levels of microclimatic humidity (Melber and Heimbach 1984;Melber 1989).…”

Section: Discussionmentioning

confidence: 99%

Plant-insect interactions in changing environments

Joachim¹

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“…Another reason for the high tissue damages under non-drought conditions may be undetected Lochmaea damage. A re-inspection of the dataset revealed that tissue damages were generally higher in areas where Lochmaea (heather beetle) infestation was detected, namely in the oceanic German Northwest, with generally higher mean daily precipitation rates, cooler conditions as well as higher N depositions, factors known to promote Lochmaea outbreaks (Britton et al 2001;Melber & Heimbach 1984;Power et al 1998;Stevens 2018, Taboada et al 2016Webb 1986). Larvae and adult Lochmaea beetles feed on Calluna leaves, as well as on young stems and bark (Gimingham 1972), and although I removed plants with a validated Lochmaea damage, I cannot exclude that some tissue damages may be induced by Lochmaea.…”

Section: Does Nitrogen Deposition Reduce Young Calluna Plants' Resist...mentioning

confidence: 99%

Vitality of heather (Calluna vulgaris) along gradients of climate, structure and diversity in dry lowland heathland habitats of Northern Germany

Schellenberg¹

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Questions: To improve our knowledge on how environmental conditions determine the development of high-value Calluna vulgaris heathland habitats, we studied the floristic and structural characteristics of heathland plant communities across North Germany and how they are influenced by edaphic, climatic and management factors. We ask how heathland development is related to these factors and what are the implications for conservation management and restoration.Location: North German Plain. Methods:We collected 350 relevés in 18 dry Calluna heathland areas. Plant communities were classified using Isopam, RDA determined effects of environmental conditions. Potential pathways of development and the nature conservation status of the communities were identified on a multifactorial basis. Results:We found nine floristically and structurally distinct heathland plant communities.Heathland vegetation showed distinct patterns along Calluna age development stages and environmental conditions. Soil conditions and related effects of long-term site history and recent management turned out to be the predominant factors influencing species composition and diversity, resulting in three potential heathland succession pathways.Mosaic-like communities with particularly high taxonomic diversity and conservation value occurred on early-successional inland dunes or as regeneration stage growing on nutrientpoor sandy soils without humus accumulation. Conclusions:The study reveals fundamental differences between historically farmed heathland in the oceanic Northwest and former military training areas mainly in northeastern Germany with consequences for restoration ecology. Present nature conservation criteria turned out to be insufficient in predicting habitat quality, as lichens are frequently disregarded. Our findings highlight the need for intense soil disturbance to maintain early-stage soil conditions and a diverse Calluna growth phase composition, as these factors essentially determine species richness in lowland heaths.

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Massenvermehrungen des HeideblattkäfersLochmaea suturalis (Thoms.) (Col., Chrysomelidae) in nordwestdeutschenCalluna-Heiden in diesem Jahrhundert

Cited by 3 publications

References 1 publication

Multi‐factor climate change effects on insect herbivore performance

Multi‐factor climate change effects on insect herbivore performance

Plant-insect interactions in changing environments

Vitality of heather (Calluna vulgaris) along gradients of climate, structure and diversity in dry lowland heathland habitats of Northern Germany

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