Tag: Biodiversity

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Forest sponge

Forests work like sponges. They can stock enormous amounts of water. Trees, even when cut years ago, keep a lot of their humidity, especially if they are underneath other trees. A rich nourishing soil allows biodiversity to thrive. It takes years and sometimes decades for these ecosystems to grow, but they are destroyed within a few months or just days in case of wildfires. We have to put higher monetary values on these ecosystems and their contributions to biodiversity in order to make the preservation economically feasible as well. The sole ecological value does not seem to stop us humans to exploit this resources beyond sustainability. The succession of seasons should be a reminder of the essential role of circularity in nature and a principal of conservation of biodiversity.

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École buissonnière

In 2026 the “École buissonnière“, the outdoor schooling has become a viable alternative to the schools that are overly hot during summer. But far beyond being an alternative out of necessity, schools as well as kindergardens adopt a form of schooling close to and in nature. It can be so much more than a simple interlude or excursion. Learning from nature is a precursor of bionics as well as compassion. After all nature offers ample examples of diversity and coping mechanisms. It is an option not only for learning purposes restricted to the young, but it is underexploited in continuous learning and lifewide experiences as well. There have been abuses also in history, most notably by Nazis in Germany for purposes of indoctrination. The learning opportunities to encourage a critical perspective of our modern, technology- and screen-dominated learning and life, are huge. They just need experienced guidance on the way of discovery, comparisons and collective experiences. Children open up and have fun, the more the pressure of classrooms is alleviated.  Learning about the importance of biodiversity from different angles is a very human value and includes our responsibility for other species.

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No mow May

For the sake of biodiversity we have learned how important it is to allow our gardens to grow during the month of May. Lots of insects shall benefit from the larger diversity of our greens. Equally, it is the perfect time to “collect” “pollen” from lots of neighbors’ gardens and fields, which will eventually show up in another garden. It is a bit similar to sharing flowers and plants in your local environment.
We just have to be careful about invasive species that have been quite successful to “surf” on the “No mow May” gardening wave.
In May 2026 the effects of global warming have been particularly felt in France. “Meteo France” has reported the very warm French month of May in 2026. Similarly, for most parts of Germany, particularly in the South West, the average temperatures were well above the 2° target already (Deutscher Wetterdienst).
With quite some rain before, the climate throughout May 2026 has favored rapid growth and advances in the blooming of the whole vegetation. You might have seen gardens in your neighborhood that looked very different from previous years for those who tried a “No mow May” in 2026.

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Nature as a concept

We all hold implicit or explicit concepts of nature in our minds. There are few countries that have “battled” over the course of history with changing and often “politicised” concepts of nature. The exhibition in the DHM “Deutsches Historisches Museum” on “Nature and German History, Faith – Biology – Power” is convincing with this cross-disciplinary approach to the subject. The chronological structure of the exhibition starts with Hildegard von Bingen’s vision of nature embedded into the huge diversity of plants with almost spiritual power. Admiration of plants and the animal world, however, became an economic resource just like gold and slavery during colonization, being followed by industrialization as the epitome of man’s power over nature. Counter movements have been on the rise in the 2nd half of the 20th century. Another power struggle over how and who defines the dominant concept of nature in the 21st century. As nuclear energy, bombs and waste redefined the long-term consequences of “treating” nature, the battles about the prevailing concept of nature intensify. The exhibition in Berlin 2026 is a fine example of a historical perspective on the relationship between society, nature and technology, where the concept of nature becomes a malleable concept between the other two players or systems. (Image: Metamorphosis of the silk moth, DHM 2026-5)

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Gardening Evolution

Researchers continue to study the impact of gardening on biodiversity and survival of insects. The study published by Tscharntke, Batáry and Vidal (2026) points our attention to the importance of areas in our gardens that are allowed to grow without mowing for several years. In many traditional gardening projects even in the 21st century, we observe a cut of grass-shoots in fairly regular time intervals, once a months for example. An English style lawn will be cut very short even more often than this. If we want to allow for an evolution of gardening and regaining biodiversity, we shall have to reserve substantial areas of a garden to allow grass-shoots to grow over several years (!). Such an evolution might be perceived in 2026 a bit like a revolution in gardening. Untidy spots are a response to “the need for unmown long-term refuges, protecting intact grass shoots for persistent insect populations” (Tscharntke et al. , 2026). The tree “Cercis siliquastrum” (Judas-tree) in the “Jardin des Plantes” in Paris dates back to 1785 and shows the impressive strength of nature to outlast changing gardening fashions even in a hotspot of gardening culture, history and evolution. Grass-shoots below might be allowed to last a couple of years as well.

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Birds nutrition

The winter diet for birds is less varied than during the other seasons. Human assistance seems to be appreciated as well even if food supply in inner cities appears to be abundant with huge amounts of wasted food in streets ans backyards. The different diets of different species are not easy to cater for. It is a two way learning and adaptation process. With a narrower range of birds feeding in cities, the task is easier than it used to be. Bringing back more diversity of birds in general starts with offering different nutrients as well. A long way to go.

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Timeless Nature

The beauty of butterflies has fascinated thousands of generations. It is the boomers’ generation that has increased the risks that future generations will have difficulties to enjoy the simple beauty of nature in their gardens or parks. Preservation of biodiversity is a value that should be ranked much higher than previously. Monitoring of biodiversity needs a generation of people well aware what a rich ecosystem and biodiversity looks like and how to preserve or restore it. Much to do for teaching and learning professionals as well. Curriculum development for biodiversity and sustainability is in urgent need for updates. This has to include the socioeconomic dimension as well.

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Global warming

The annual update of the global warming indicators (source: Earth system science data 2025-6) gives more reasons to worry about the future of our climate. The objective to limit global warming to +1.5°C, established at the Paris climate agreement in 2015, is no longer achievable. This is the hard evidence based on the global network of scientific data collections and their projections. Fossil fuels are a major cause, deforestation and greenhouse gas emissions as well (Forster et al. 2025). As a consequence, human-induced warming of average surface temperatures and flows of heat into oceans continue. The first consequences, we witness in many parts of the world already. France is particularly affected (Le Monde 2025-6-20, p.7). What used to be called “natural disasters” is better described as long-term consequences of human-induced global changes like global warming. About time to take our CO2 footprint even more seriously. The “All electric society” can reduce reliance on fossil fuels considerably, as of now.

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Spring Newborn

For many species spring is the time for newborns to enter into life. Pigeons in the neighborhood have completed the breeding phase and they called upon the newborn to crack the shell open. Nourishment is already abundant in the surroundings and parents appear to be impatient to quit the guarding of their offsprings. Time for the next generation to take over a similar role soon.
Pigeons don’t ask questions about fertility. They reproduce in abundance if the environmental conditions are alright.
Human beings are a danger for them as some feed them well, but others defend their territory, housing or living space against any intrusion by pigeons. Compromises are not easy to accomplish.
Fans of the song writer Georg Kreissler keep humming with dark humor: „Geh‘n wir Tauben vergiften im Park …“. The struggle for survival of species has changed in kind and we are, more than ever, responsible for the living conditions of other species as well.

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Warming consequences

The live of honey bees is rather busy and well organized. Global warming necessitates new risks and new opportunities for honey bees. The flowering season starts earlier in Europe and bees start earlier ro their collection of nectar and their service of pollination to other flowers. In early April 2025 in France near Paris we observe wild bees already in their daily routine. However, the risk of cold nights is still there, albeit those building their homes below the surface are a bit less at risk during a frosty night. Seeking a clever shelter is a good strategy for survival particularly at times of global warming. Some kinds of wild bees seem to sense this already changing homes from one season to next one. Humans remain their toughest enemies as they restrict their choices quite severely. Man-made pollution and herbicides are beyond bees’ control and cause havoc in the ecosystem of bees. Apiculture is an interesting science also for social scientists as this forerunner species of the matriarchy has evolved into a well-organized productive society. They are a bit harsh to each other and communication is rather unidirectional, but an interesting social cosmos of its own kind.