{"id":6811,"date":"2012-02-11T01:03:50","date_gmt":"2012-02-11T06:03:50","guid":{"rendered":"https:\/\/esa.org\/esablog\/?p=6811"},"modified":"2012-02-11T01:03:50","modified_gmt":"2012-02-11T06:03:50","slug":"whats-in-a-name-proposed-reinterpretation-of-key-words-in-the-endangered-species-act","status":"publish","type":"post","link":"https:\/\/esa.org\/esablog\/2012\/02\/11\/whats-in-a-name-proposed-reinterpretation-of-key-words-in-the-endangered-species-act\/","title":{"rendered":"What\u2019s in a name? Proposed reinterpretation of key words in the Endangered Species Act"},"content":{"rendered":"

This post contributed by Sean Hoban, a post-doc in conservation biology at the University of Ferrara, Italy<\/em><\/p>\n

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How important can five words be?\u00a0 Very!<\/p>\n

The 1973 Endangered Species Act states that a species may be regarded as endangered if \u201cthreatened with extinction [\u2026] throughout all or a significant portion of its range<\/span><\/em>\u201d (my underline, hereafter, SPR).\u00a0 Remarkably, neither the US Fish and Wildlife Service (FWS) nor National Marine Fisheries Service (NMFS) has had an official policy on the meaning of this phrase for the thirty-nine year history of the Act.\u00a0 Enter proposal FWS\u2013R9\u2013ES\u20132011\u2013003<\/a> (summarized here<\/a>), which spells out the Services\u2019 soon-to-be official interpretation of the seemingly innocuous phrase, specifically defining the words \u201csignificant\u201d and \u201crange.\u201d<\/p>\n

As a conservation biologist working for effective species survival, I would like to share my impressions of the proposal, and encourage all to participate in the public comment, extended until March 7<\/a>.\u00a0 How these five words are interpreted will have lasting consequences for species\u2019 listing and subsequent recovery plans and management actions.<\/p>\n

After an insightful review of past legislative battles over SPR, the proposal gets down to business on page 5, stating that a definition of \u201csignificant\u201d should include (a) the variable to measure and (b) a threshold for that variable.\u00a0 Further, a) and b) should be based on biological and conservation criteria. We would probably all agree here!\u00a0 But read on, controversy awaits.<\/p>\n

As explained on page 8, in the preamble to the proposal, a portion of a species\u2019 range may be \u201csignificant\u201d with respect to a species\u2019 resiliency (ability to recover), redundancy (multiple, distributed \u201cbackups\u201d), and\/or representation (range of variation).\u00a0 Also important are \u201cabundance, spatial distribution, productivity, and diversity of the species<\/em>.\u201d However, these key variables are lacking in the actual proposed interpretation <\/strong>(page 16\/17); the actual definition of a SPR is very succinct: \u201cwithout that portion, the species would be in danger of extinction. If so, the portion is significant.<\/em>\u201d<\/p>\n

It is therefore arguable whether the new phrasing improves specificity; this wording seems as open to interpretation and debate as ever.\u00a0 Further, as noted in several<\/a> ongoing<\/a> dialogues<\/a> on Ecolog-l, and summarized in an open letter by the Center for Biological Diversity<\/a>, this could \u201cresult in species that are severely endangered in portions of their range being denied protection because they are secure in some portion of their range even if that portion is just a fraction<\/em>.\u201d\u00a0 Specific examples are argued<\/a> in recent<\/a> news<\/a> articles and blogs<\/a>.\u00a0 These commentaries question whether (in the proposal\u2019s words) \u201cthe draft policy would result in the Services listing and protecting throughout their ranges species that previously we either would not have listed, or would have listed in only portions of their ranges<\/em>,\u201d although it might \u201callow protection and recovery of declining organisms in a more timely and less costly manner<\/em>,\u201d a key consideration for species truly on the brink.<\/p>\n

A possible improvement would be to use phrasing from earlier in the document: \u201cwithout that portion, the representation, redundancy, or resiliency of the species\u2014or the four viability characteristics used more commonly by NMFS\u2014would be so impaired that the species would have an increased vulnerability to threats to the point that the overall species would be in danger of extinction.<\/em>\u201d\u00a0 Another possibility could be to note specific examples of pressing dangers such as loss of genetic biodiversity<\/a> or decreased reproductive output.<\/p>\n

Now, what about \u201crange?\u201d\u00a0 Another tidy definition: \u201cthe general geographical area within which the species is currently found\u2026 lost historical range cannot be a significant portion of the range<\/em>.\u201d\u00a0 Further, an SPR must be occupied currently; ergo if an area is not occupied, it cannot be an SPR.\u00a0 The authors explain that only the current range matters because the Act focuses on present and future threats of a species, not its past.\u00a0 In other words, we don\u2019t look back, we look forward.\u00a0 Further, current range is a simple, clear, easily measurable criteria.\u00a0 However, the phrase could be interpreted such that if a species is deemed viable in its current range, however small, it may not be protected.<\/p>\n

The document acknowledges, \u201closs of historical range may have resulted in a species for which distribution and abundance is restricted, gene flow is inhibited, or population redundancy is reduced to such a level that the entity is now vulnerable<\/em>.\u201d\u00a0 We must remember the past<\/a>.\u00a0 The loss of vast portions of the bald eagles\u2019 range due to DDT poisoning was the reason for its listing, even while core, Alaskan populations were stable.\u00a0 The myriad of pests, diseases and parasites afflicting our nation\u2019s forest trees<\/a> (resulting in near extinctions<\/a>) are examples in which range or abundance is tremendously eroded, but the remnants are (for now) somewhat safe.<\/p>\n

There are of course problems with a species\u2019 historic range as a benchmark for protection.\u00a0 We know that ranges change over time, sometimes drastically.\u00a0 Ecological systems are not static<\/a>\u2013 what was will never be quite the same again.\u00a0 What past time point represents a species natural range?\u00a0 More generally, what specific, quantified, threshold-based role can range and other factors play?\u00a0 This kind of question is what the Services specifically request feedback on (for other specific requests, see page 18).<\/p>\n

The document (we are almost finished!) also discusses classification of portions of the range that cross state and national boundaries (page 13), as well possible conflict between SPR and distinct population segment (DPS)- \u201ca subspecies, race, form, or a unique or disjunct segment of a species.<\/em>\u201d\u00a0 In the later case, on page 13, the document seems to say that if only the DPS was threatened, then only the DPS would be protected, hauntingly echoing the President Bush era proposal<\/a> that only portions of the species range could be protected.\u00a0 While the majority of the text suggests that if a SPR is identified, then the whole species is protected, as argued here<\/a>, the almost-footnote DPS discussion suggests that indeed the whole species indeed may not be protected, if a DPS can be identified.\u00a0 This unfortunately creates the tension and ambiguity that the proposal seeks to solve.<\/p>\n

The document might benefit from discussion of specific case studies; only two hypothetical extreme examples are given.\u00a0 For example, what is the fate of range edge or small populations (which may provide insurance as diseases sweep through the range center), are they DPS, or SPR?<\/p>\n

The slowness with which species are currently listed, and endless court battles, attests to the fact that the issue of significance must indeed be addressed to achieve efficiency and efficacy in application of the Endangered Species Act.\u00a0 The 20-page proposal is a very good start in many ways, but needs improvement, from you readers!\u00a0 Comments<\/a> of any length are welcome.<\/p>\n

(Thank you to Patrick Hoban and Daniel Borkowski for help writing this post).<\/p>\n

\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

This post contributed by Sean Hoban, a post-doc in conservation biology at the University of Ferrara, Italy \u00a0 How important can five words be?\u00a0 Very! The 1973 Endangered Species Act states that a species may be regarded as endangered if \u201cthreatened with extinction [\u2026] throughout all or a significant portion of its range\u201d (my underline, hereafter, SPR).\u00a0 Remarkably, neither the…<\/p>\n","protected":false},"author":41,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[287,7,1333,63,136,709,236],"class_list":["post-6811","post","type-post","status-publish","format-standard","hentry","category-ecology-in-policy","tag-biodiversity","tag-conservation","tag-conservation-biology","tag-endangered-species","tag-endangered-species-act","tag-extinction","tag-fish-and-wildlife-service"],"_links":{"self":[{"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/posts\/6811","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/users\/41"}],"replies":[{"embeddable":true,"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/comments?post=6811"}],"version-history":[{"count":0,"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/posts\/6811\/revisions"}],"wp:attachment":[{"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/media?parent=6811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/categories?post=6811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/esa.org\/esablog\/wp-json\/wp\/v2\/tags?post=6811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}