Life Science Division (LSD)

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Browsing Life Science Division (LSD) by Author "Inman, Emilia N."

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    Current vegetation structure and composition of woody species in community-derived categories of land degradation in a semiarid rangeland in Kunene region, Namibia
    (Wiley, 2020) Inman, Emilia N.
    Land degradation has put the world's rangelands under intense pressure and reduced their capacity to provide vital services to those who solely depend on them for survival. With the current pressures on rangelands, worldwide, there is an urgent need to survey the present condition of rangelands. Such detailed surveys can identify where improvement programmes can be emphasised; whether it be reseeding, stock control, sociological restraints or other actions. To combat rangeland degradation, management systems are more effective when they account for community perceptions and practices. This study aims to assess the current status of woody plants in different categories of degradation as perceived by herders in Kunene, Namibia. Furthermore, we wished to compare the perception of degradation by herders with the measured ecological condition. With the help of herders, sites representing different categories of degradation (low, moderate, high and protected) were identified and 10 plots of 400m2 each were established in each category. Species diversity, density, basal area and regeneration of woody plants increased sequentially along the degradation gradient (high to low). Vegetation attributes such as species diversity, seedling density and standing basal area increased with increasing distances from the villages. Although the herders' perception of degradation, for high and moderate degradation, matches the ecological results, the low degradation sites show signs of bush encroachment, a type of degradation that the herders did not perceive as degradation. Colophospermum mopane, a known encroacher species across Namibia, was the dominant species in the moderate and low degradation sites. Pechuel-loeschea leubnitziae, which is also known to be an indicator of degradation, was the dominant species in the high degradation sites. The findings highlight the present and future threats the study area is facing and form the basis for current restoration research.
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    Tackling environmental problems: are people and the environment antithetical?
    (Canadian center of science and education, 2023) Inman, Emilia N.; Inman, Paul J.
    In the era where human communities have been plunged into unprecedented environmental problems, scientists and policymakers have been forced to revisit and reflect on the relationship between humanity and the natural environment. In light of all these developments, fundamental questions have been asked, such as, should nature be left alone? Are humans separate from nature? Is it too late to turn back the clock? How can we tackle the climate crisis? At the core of these questions lies the issue of the human-environment relationship, with humans being both dependent on and simultaneously harming the environment. Although the dependence of humans on natural systems is acknowledged, there seems to be uncertainty about balancing human well-being, ecosystem, and environmental integrity. It appears as though these three factors cannot co-exist harmoniously. In this contribution, we discuss the axioms of the environment and humanity and extract lessons that can be used to address the increased environmental concerns that have challenged the world. We also present a rationale for using an interdisciplinary, holistic approach to address environmental problems, proposing a Nature-integrated in Whole Systems Framework. We argue that environmental problems cannot be successfully addressed without incorporating human dimensions and treating systems as wholes. We base our argument on the fact that the challenges facing humanity are so intertwined that addressing one issue without considering the others is futile. We propose that we need to integrate nature into every aspect of life.