5: Biodiversity
- Page ID
- 185159
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)Introduction
Conservation biology is the management of Earth's ecosystems with the aim of protecting species, their communities, and ecosystems from escalated extinction rates and the destruction and degradation of their habitats. This field focuses on both evaluating past, current, and future trends and creating conservation action plans to reverse trends leading to extinction and destroyed habitats. More specifically, procedures have been put in place to protect threatened species, design habitat preserves, creating breeding programs, and reconciling conservation concerns with practical human needs.
As conservation biology needs to pull from so many fields, it is an interdisciplinary subject drawing on physical, life, and social sciences, as well as natural resource management procedures. The field seeks to integrate social science policy with theories from the fields of ecology, demography, taxonomy, and genetics. The principles underlying each of these disciplines have direct implications for the management of species and ecosystems, captive breeding and reintroduction, genetic analyses, and habitat restoration. Social science disciplines not only help with putting policies in place to legally protect species and habitats but also help fund conservation actions. Conservation action plans help direct research, monitoring, and education programs that engage concerns at both local and global scales.
The goal of this unit is to overview the essential conservation biology topics as we head into an uncertain future.
Figure \(\PageIndex{a}\): Volunteers carrying a sea turtle. Image by Aleson Padiha Pexels (Public domain)
- 5.1: The Value of Biodiversity
- This page highlights biodiversity's vital role in medicine, showcasing discoveries like yerba santa's potential against Alzheimer’s. It categorizes biodiversity into ecosystem, species, and genetic varieties, emphasizing their importance to health. The page also addresses threats to biodiversity from human activities, advocating for preservation through awareness and behavior change.
- 5.2: Threats to Biodiversity
- This page discusses the challenges facing the northern spotted owl due to habitat destruction from timber harvesting, resulting in population declines. It highlights broader biodiversity loss driven by human activities, leading to accelerated species extinction. Key threats include habitat loss, pollution, overexploitation, invasive species, and climate change, linked to increasing human populations and resource demands.
- 5.3: Protecting Biodiveristy
- This page discusses the IUCN Red List, which identified over 41,000 species by 2020, many of which are endangered. It highlights the recovery of the Island Fox through conservation efforts and emphasizes the importance of ecological knowledge, laws, and ecosystem restoration in effective conservation.
Attributions
Rachel Schleiger (CC-BY-NC(opens in new window))
Thumbnail image - "Environmental protection"(opens in new window) is in the Public Domain