24.3.21


 The graduation ceremony for the class of 2020 was held today at the Korakuen Campus of Chuo University. Congratulations everybody!

 (don't worry - we put the masks back on immediately after taking the photo)

25.2.21

New Water Distillation Apparatus

Prof. Hotes with the Applied Landscape Ecology Lab's newly installed water distillation apparatus. The water is being used to mimic rainwater in a sphagnum moss experiment. Many thanks to Chiyoda Science and Chuo University support staff with their assistance in this project!


Prof. Hotes with the Applied Landscape Ecology Lab's newly installed water distillation apparatus. The water is being...

Posted by Stefan Hotes' Applied Landscape Ecology Lab on Wednesday, 24 February 2021

16.2.21

New Publication: The Aesthetics of Sustainability



Munroe Hotes, Catherine and Stefan Hotes. 
 マンロー ホーテス ・キャサリン とホーテス ・シュテファン 
The aesthetics of sustainability: Japanese landscapes examined from viewpoints of cultural studies 
美しい景観は持続可能か―文理融合に基づいた考察 
In the special issue: 
 Perspectives from around the world as inspiration for landscape and regional planning 
世界のまなざしを風景・地域づくりに活かす 
Journal of the Japanese Institute of Landscape Architecture. 
84.4 (Jan 2021),340-345. 

9.9.20

Effects of projected climate change on the distribution of Mantis religiosa suggest expansion followed by contraction

 

Read Here:  https://we.copernicus.org/articles/20/107/2020/

Abstract

Climate change influences the global and regional distribution of many species. For thermophilic insects, range expansions towards the north and to higher elevations are expected in the course of climatic warming across the Northern Hemisphere. The distribution of the European mantis (Mantis religiosa) has recently expanded from Mediterranean regions in France to Hesse in central Germany. This is interpreted as a response to rising mean temperatures, and further northward expansion is expected to occur with increasing climate warming. In this study, potential changes in the regional distribution across Hesse were modeled for Mantis religiosa using the present distribution and climate across Europe as the baseline. We estimated potential changes in the regional distribution for two time periods until 2080 based on two climate change scenarios. The results showed that the current range of M. religiosa in Hesse is smaller than expected based on its climatic niche, i.e., the distribution is not in equilibrium with the present climate. With climate warming the model predicts an expansion of the potential distribution for the period 2041–2060. For the period 2061–2080, our model predicts, however, a range contraction in spite of continued warming. This unexpected result warrants further investigation in order to elucidate whether the ongoing climate change may have negative consequences for thermophilic species such as M. religiosa. 

Steger, J., Schneider, A., Brandl, R., and Hotes, S.: Effects of projected climate change on the distribution of Mantis religiosa suggest expansion followed by contraction, Web Ecol., 20, 107–115, https://doi.org/10.5194/we-20-107-2020, 2020.

31.8.20

Regeneration capacity and threats to mangrove areas on the southern coast of Oriental Mindoro, Philippines: Implications to mangrove ecosystem rehabilitation

 

Abstract 

aganas AFM, Hadsall AS, Pampolina NM, Hotes S, Magcale-Macandog DB. 2020. Regeneration capacity and threats to mangrove areas on the southern coast of Oriental Mindoro, Philippines: Implications to mangrove ecosystem rehabilitation. Biodiversitas 21: 3625-3636. Regeneration capacity is important as it determines the fate of an ecosystem. This study assessed six mangrove areas in the southern coast of Oriental Mindoro, Philippines to evaluate their regeneration capacity status. Four mangrove ecotypes were delineated namely seaward, middle, landward and riverine zones at each mangrove ecosystem, where dominant mangrove species were identified and selected for regeneration capacity study. Three subplots measuring 1 x 1 m2 were laid within the five 10 x 10 m2 survey plots established per zone. The juveniles were counted and categorized according to their height classes, using linear regeneration sampling method; where: RCI (≤40 cm) considered seedlings; RCII (41-150 cm) as saplings; and RCIII (151-≤300 cm) as small trees. Potential threats both anthropogenic and natural were determined through key informant interviews. Seven dominant species were identified across ecotypes in all mangrove sites, namely Avicennia marina, Avicennia rumphiana, Ceriops decandra, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Xylocarpus granatum. RCI (seedlings) is the most abundant across mangrove sites irrespective of the dominant species. Fishpond operation within the mangrove stand is considered a major threat to the juveniles and most mangrove ecosystems. Therefore, protection and constant monitoring of these mangrove ecosystems are necessary to ensure regeneration success in the future.

Read: Biodiversitas

Notwendigkeit eines Brückenschlags zwischen Wissenschaft und Praxis im Naturschutz - Chancen und Herausforderungen

Artikelnummer: OP-978-3-00-153829-1

Auflage: 1. Auflage

Seitenbereich: 364-371

Erschienen: 2020

DOI: 10.17433/8.2020.50153829.364-371

Produktbeschreibung


Für ein erfolgreiches Handeln im Naturschutz sind ein enger Austausch und eine Rückkopplung zwischen Wissenschaft sowie Akteurinnen und Akteuren der Praxis auf allen Ebenen notwendig. Viele Beispiele und Erfahrungen deuten jedoch darauf hin, dass dieser wechselseitige Austausch nicht optimal und bedarfsgerecht funktioniert. Aus Sicht der Autorinnen und Autoren besteht die Notwendigkeit für einen neuen "Brückenschlag" im Naturschutz, um die Übertragung gesicherter Forschungsergebnisse in die Praxis und umgekehrt die Vermittlung der Bedarfe aus der Praxis hin zur Wissenschaft zu optimieren. Ausgehend von einer Analyse der aktuellen Herausforderungen und Ursachen in diesem Kontext werden im vorliegenden Beitrag - differenziert nach den wichtigsten Akteursgruppen - verschiedene Lösungsansätze für einen Brückenschlag abgeleitet und zur Diskussion gestellt. Ergänzend finden sich vier Praxisbeispiele. Für eine Verbesserung der Situation muss die Naturschutzforschung vermehrt die Bedarfe der Praxis berücksichtigen und entsprechende Forschung muss auch von der "scientific community" anerkannt werden. Gleichzeitig soll die Diskussion dazu beitragen, dass die Praxis ihr Handeln stärker evidenzbasiert ausrichtet und noch aktiver die Kooperation mit der Wissenschaft sucht.

Bestellen: Kohlhammer

1.8.20

Instagram Diary 11: Rishiri-Rebun-Sarobetsu National Park 利尻礼文サロベツ国立公園

Rishiri-Rebun-Sarobetsu National Park 







31.3.20

Szenarien der künftigen Verbreitung des Hirschkäfers in Hessen: welchen Einfluss hat der Klimawandel?

 

Johanna Steger, Christian Geske, Jannis Gottwald, Roland Brandl, Thomas Nauss und Stefan Hotes

Artikelnummer: OP-978-3-00-153783-6

Auflage: 1. Auflage

Seitenbereich: 111-117

Erschienen: 2020

DOI: 10.17433/3.2020.50153783.111-117

Der Hirschkäfer (Lucanus cervus L. 1758) - einer der auffälligsten Käfer Europas - gilt in Deutschland als stark gefährdet. Grund dafür sind schwindende geeignete Lebensräume, die geprägt von starkem Totholz oftmals an sonnenexponierten Waldrändern oder Parkanlagen liegen. Als wechselwarme Tierart könnte der Hirschkäfer direkt von einer Klimaerwärmung profitieren und sein Verbreitungsgebiet ausdehnen. Die in diesem Beitrag vorgestellte Studie zielt darauf ab, das Verbreitungsgebiet des Hirschkäfers in Hessen zu modellieren und anhand prognostizierter Szenarien des Klimawandels in die Zukunft zu projizieren. Die Vorhersagen der verschiedenen Szenarien des Klimawandels sind aber "grobskalig"; daher stellt sich die Frage, ob derartige Daten auch für regionale Zwecke sinnvolle Aussagen ermöglichen. Unsere Analyse zeigt, dass die Nutzung grobskaliger Klimavariablen erlaubt, die Wahrscheinlichkeiten des Vorkommens von Hirschkäfern regional einzuschätzen. Die Modelle zeigen zudem, dass der Klimawandel für das Vorkommen des Hirschkäfers in Hessen wenig Einfluss haben wird, wenngleich sich die Lebensräume im "schlimmsten" Klimaszenario etwas nach Nordwesten verschieben werden.

Bestellen bei Kohlhammer

Landscape associations of farmland bird diversity in Germany and Japan

 

Abstract

Spatial heterogeneity of landscapes is a key factor for the diversity of biota. There are a rich variety of agricultural landscapes around the globe that differ with respect to composition and spatial configuration of land-use types, reflecting different levels of human impacts. To test whether landscape structure influences biodiversity in similar ways in different geographical regions, our study explored the relationship between landscape characteristics and farmland bird diversity in Germany and Japan. The two countries represent regions with similar Palearctic avifauna, but with contrasting climatic, biogeographical, and socio-economic conditions. We used distribution data for 31 (Germany) and 29 (Japan) species of farmland birds and applied multiple regression analysis to examine the effect of landscape structure on species richness of total farmland birds and of several ecological groups. In both regions, farmland cover was the key variable determining species numbers. Species numbers also increased with increasing proportion of semi-natural habitats up to a maximum and then decreased if semi-natural habitat became more abundant. Optimum landscape structure for each ecological group differed according to their respective habitat needs, but the direction of shifts toward their preferred habitats was similar in both regions, suggesting common ecological mechanisms underlying the patterns of farmland bird diversity. Significant interactions of structural characteristics with the region variable indicated that associations between species richness and landscape structure varied regionally. In Germany, where landscapes are covered by a large extent of farmland, woodland edge density had a pronounced effect on species numbers. By contrast, associations with woodland edges were weak in Japan, where forest is the dominant form of land-use. The differences in landscape associations imply that different conservation strategies should be taken according to the landscape context. In farmland-dominated landscapes, edge habitats provided by forest patches are an important feature for maintaining farmland bird diversity, whereas maintaining open habitats is crucial in forest-dominated landscapes. The importance of maintaining grassland, paddy fields, and semi-natural habitats as part of agricultural landscapes was also underlined by the results of our study. Measures for conserving farmland bird diversity should focus on maintaining heterogeneity of agricultural landscapes.

Read: Science Direct