Biodiversity and ecosystems

Biodiversity and ecosystems, encompassing the vast variety of life on Earth and the natural systems they inhabit, are fundamental to the Sustainable Development Goals (SDGs). Their importance is acknowledged explicitly in several SDGs due to their critical role in maintaining environmental balance and supporting human life and well-being.

SDG 14 (Life Below Water) and SDG 15 (Life on Land) are directly focused on the conservation and sustainable use of aquatic and terrestrial ecosystems, respectively. These goals recognize the intrinsic value of biodiversity and the vital services ecosystems provide, such as habitat for wildlife, carbon sequestration, and soil formation. The preservation and restoration of ecosystems like forests, wetlands, and coral reefs are essential for maintaining biodiversity, which in turn supports ecological resilience and the sustenance of human life.

The role of biodiversity and ecosystems in achieving SDG 2 (Zero Hunger) is significant. The variety of life forms, including plants, animals, and microorganisms, underpins agricultural productivity. Pollinators, soil organisms, and genetic diversity of crops are all crucial for food production and agricultural resilience. Ecosystems support agriculture not just in terms of crop yield but also in sustaining the natural resources like soil and water, upon which agriculture depends.

Similarly, SDG 6 (Clean Water and Sanitation) is closely tied to the health of ecosystems. Natural habitats such as forests and wetlands play a key role in filtering and purifying water, maintaining the water cycle, and regulating water flow. This natural filtration process is vital for providing clean drinking water and supporting sanitation systems.

Biodiversity and ecosystems are also crucial for SDG 3 (Good Health and Well-being). Natural environments regulate diseases by supporting a balance among species that, in turn, can control pest and disease outbreaks. Additionally, a vast number of medical discoveries, including medicines and treatments, have their origins in biological resources, underscoring the potential of biodiversity in contributing to human health and well-being.

Moreover, biodiversity and ecosystems play a significant role in addressing climate change, linking to SDG 13 (Climate Action). Ecosystems such as forests and oceans are major carbon sinks, absorbing and storing carbon dioxide from the atmosphere. Protecting and restoring these ecosystems are vital strategies for climate change mitigation. Additionally, healthy ecosystems provide crucial services for climate change adaptation, such as protecting against extreme weather events and helping communities adjust to changing environmental conditions.

However, achieving these goals requires addressing threats to biodiversity and ecosystems, such as habitat destruction, pollution, overfishing, and invasive species. It also involves balancing the needs of human development with environmental conservation, ensuring sustainable use of natural resources.

Biodiversity and ecosystems are integral to achieving multiple SDGs. Their conservation and sustainable use not only benefit the environment but are essential for food security, water purity, human health, and combating climate change. The protection and restoration of biodiversity and ecosystems are therefore crucial steps towards sustainable development and ensuring the well-being of current and future generations.

Elsevier,

Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology, Volume 235, September 2020

This article advances SDG # 15 and # 14 by looking at the potential adverse effects relatively high total mercury concentration has on the developing fetus of Steller sea lions.
Salinity stress adversely affects root nodulation symbiotic relationships, and ultimately the nitrogen fixation capacity and the growth and yield of leguminous plants. Improving growth and biological nitrogen fixation of leguminous plants grown on salt–affected soils are considered to be a striking challenge.
Urbanisation involves major changes in environmental conditions such as light, temperature, humidity and noise levels, but the effect of urbanisation on soil conditions and soil biodiversity has received less attention. The reported effects on species richness across a rural to urban landscapes are not unequivocal. Positive, negative and neutral effects have been found, but what is causing this ambiguity in the relationship between species richness and urbanisation is poorly understood.
Non-target effects of deliberately released organisms into a new environment are of great concern due to their potential impact on the biodiversity and functioning of ecosystems. Whereas these studies often focus on invasive species of macro-organisms, the use of microbial inoculants is often expected to have specific effects on particular functions but negligible overall effects on resident microbial communities. Here, we posit that such introductions often impact native microbial communities, which might influence ecosystem processes.
This special issue explores the influence that insects and other invertebrates have on ecosystem services and the Sustainable Development Goals (SDGs), and makes a case for insect science to promote a sustainability science approach.

Ecology plays a central role in the management and conservation of ecosystems. However, as coral restoration emerges as an increasingly popular method of confronting the global decline of tropical coral reefs, an ecological basis to guide restoration remains under-developed. Here, we examine potential contributions that trophic ecology can make to reef restoration efforts. To do so, we conducted a comprehensive review of 519 peer-reviewed restoration studies from the past thirty years.

2018 First prize winner Dr. Prajwal Rajbhandari
In 2018, Dr. Prajwal Rajbhandari was awarded the first prize of the Elsevier Foundation Green and Sustainable Chemistry Challenge for his project, “Guava leaves as natural preservatives for farmers of Nepal.” Due to a lack of viable non-toxic preservatives, or cold chain technologies, one-third of Nepal’s produce is spoiled before it reaches market each year. Dr. Rajbhandari’s project taps the antioxidant and antimicrobial properties of guava leaves to make a water-based, sprayable natural preservative, contributing to SDGs 2, 12 and 15. Two years later, we interviewed Dr. Rajbhandari about his experience as a winner, as well as the upcoming steps for his project.
Advancing SDG 15, this article aimed to isolate, characterize (biochemically and molecularly) and assess the potential of cowpea nodulating/maize associated rhizobia for plant growth promotion.
Insects are indispensable actors within global agri-food systems and ensure the delivery of myriad ecosystem services. A progressive decline in insect numbers — as inflicted by habitat loss, pollution or intensive agriculture — can jeopardize a sustained provisioning of those services. Though we routinely disregard how insects help meet multiple sustainable development challenges, a gradual insect decline can have grave, long-lasting consequences.
Tropical cropping systems are highly dependent on synthetic insecticides, which generates sustainability issues. We performed a bibliometric analysis of the current insecticide literature (2017–2019) and used the Sustainable Development Goals roadmap to identify research topics in insecticide research that should be promoted to attain sustainable cropping systems.

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