Balancing research, monitoring, and action to recover Canada’s species at risk

Buxton, Rachel T.; Hamit, Shamri; Geauvreau, Joshua J.W.; Davis, Sierra A.; Smith, Paul A.; Bennett, Joseph

doi:10.1016/j.envsci.2022.02.018

Cited by 7 publications

(4 citation statements)

References 59 publications

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“…Avoiding investing time and resources in reducing those sources of uncertainty that are unimportant, uncontrollable, or of limited relevance to management is therefore an important task for managers. For example, half of all management actions proposed for species at risk in Canada are related to research and monitoring, with this percentage highest for the most threatened species (Buxton et al 2022). An important task for managers is therefore to identify which decisions will have beneficial and cost effective outcomes for the species in the face of the existing uncertainties (Milner‐Gulland and Shea 2017, Stevens et al 2017, Noel et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Canadian murre harvest management in the face of uncertainty: a potential biological removal approach

Cox,

Roy,

Hanson

et al. 2024

J Wildl Manag

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How to manage harvest under great uncertainty is a fundamental question for many wildlife managers, particularly when resources necessary to estimate abundance or population trends are limited. The large Newfoundland and Labrador murre hunt is the only licensed harvest of seabirds in Canada. Though harvest of thick‐billed murres (Uria lomvia) and common murres (Uria aalge) has declined considerably since the 1960−1970s from >500,000 birds taken annually to approximately 100,000 annually in recent years, potential murre colony declines across the North Atlantic have again triggered concerns over the sustainability of murre harvest in Canada. The effect of current harvest is difficult to assess because there is considerable uncertainty in recent population size, trend, demographic rates, licensed harvest, fisheries bycatch, and illegal harvest. To assess the situation, we simulated the population size necessary to sustain current levels of approximated anthropogenic mortality using a potential biological removal approach, which simplifies and constrains population processes to a few key variables. Based on these simulations, the Canadian licensed harvest of thick‐billed murre is consistent with conservation management objectives, as is common murre licensed harvest and fisheries bycatch. Adding estimated illegal harvest resulted in unstainable mortality levels in both species. While wildlife managers will need to formally assess the relative costs and benefits of reducing uncertainty in this system through improved harvest and population monitoring, illegal harvest and commercialization need to be addressed to manage Canadian murre populations. Potential biological removal approaches can be a useful framework to assess harvest management decisions for marine birds and other data‐limited species.

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Section: Discussionmentioning

confidence: 99%

Canadian murre harvest management in the face of uncertainty: a potential biological removal approach

Cox,

Roy,

Hanson

et al. 2024

J Wildl Manag

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“…Part C of the methodology describes a process for testing the correlation between predetermined "explanatory" variables and recoveryaction interactions, thus enabling the identification of factors that may be predictive of interaction types. Our application of the db-RDA builds upon a body of literature critiquing the SARA process (e.g., Bolliger et al, 2020;Buxton et al, 2022;Pawluk et al, 2019;Turcotte et al, 2021), including a paper that used similar statistical methods to test the relationship between threats to species and the ambition of recovery strategies (McCune et al, 2013). The use of db-RDA helped to corroborate ecological hypotheses regarding broad causes of recovery-action interactions.…”

Section: Discussionmentioning

confidence: 99%

Uncovering antagonisms in recovery planning for species at risk: A diagnostic approach

Silver,

Ahsan,

Mandrak

et al. 2023

Conservat Sci and Prac

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Amid Earth's ongoing sixth mass extinction event, numerous measures have been proposed to recover the populations of species at risk of extinction. However, the methods and objectives of different species' recovery plans sometimes conflict with each other, causing a conundrum we refer to as recovery–action antagonism. Recovery–action antagonism reduces the cost‐effectiveness of conservation programs and can increase the extinction risk of nontarget species. We describe a method to identify interactions between recovery actions, including antagonisms proposed for different at‐risk species in a given location. The method includes a process to evaluate potential drivers of recovery‐action antagonism and other interaction types using principal coordinates analysis and distance‐based redundancy analysis. We illustrate various applications of the method through case studies performed in Pelee Island and Rouge National Urban Park, two biodiverse areas in Ontario, Canada. Potential antagonism was identified between 1.5% (Pelee) and 5% (Rouge) of the evaluated recovery actions. Although the rate of antagonism was low in our case studies, the method allows the identification of a variety of interactions, which can help to prioritize similar and complementary actions that will benefit a large number of species while minimizing actions that may have competing outcomes.

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“…Al hacer un análisis nacional del Índice de Especies en Riesgo, se observa que dichas especies estaban concentradas en Chihuahua, Tamaulipas y Veracruz, por lo que es recomendable promover el manejo de un mayor número de especies en riesgo en el resto de las entidades federativas. Buxton et al (2022) señalan que existe menos información biológica y ecológica de las especies con mayor riesgo de extinción, lo cual limita el manejo de dichas especies al interior de las UMA. Por su parte, Ortega y Contreras (2013) coinciden en que una de las limitantes actuales de los programas gubernamentales en materia de conservación de especies en riesgo es que la información que se genera no se divulga.…”

Section: Análisis De La Conservación Biológica En Las Umaunclassified

Análisis de las Unidades de Manejo para la Conservación de la Vida Silvestre en México

González Camacho

2024

SyA

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El gobierno mexicano creó la figura de Unidades de Manejo para la Conservación de la Vida Silvestre (UMA) con el fin de proteger y aprovechar de manera sustentable las especies mexicanas. Su funcionamiento se ha evaluado históricamente con indicadores meramente administrativos. El objetivo de esta investigación es analizar el tipo de manejo que promueven dichas unidades a nivel nacional y el impacto que generan en la conservación biológica. Para ello, se utilizaron dos enfoques: uno diacrónico para analizar mediante tendencias y mapas coropléticos el desarrollo histórico de las UMA de 1999 a 2021, y otro sincrónico a través del cual se generaron índices de manejo y de conservación biológica para analizar las UMA durante el 2018. Los resultados muestran una tendencia decreciente del número de UMA y las superficies incorporadas. Los índices indican que las UMA que más se promueven son las que aplican un manejo dirigido a estabilizar las poblaciones de vida silvestre para obtener cosechas sostenidas. Las UMA a nivel nacional presentan las siguientes problemáticas: 1) cubren muy poca superficie forestal de cada entidad, 2) se han centrado en el manejo de un grupo reducido de especies, 3) el manejo de especies con alguna categoría de riesgo es limitado, y 4) existen unidades que están promoviendo la introducción de especies exóticas.

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Balancing research, monitoring, and action to recover Canada’s species at risk

Cited by 7 publications

References 59 publications

Canadian murre harvest management in the face of uncertainty: a potential biological removal approach

Canadian murre harvest management in the face of uncertainty: a potential biological removal approach

Uncovering antagonisms in recovery planning for species at risk: A diagnostic approach

Análisis de las Unidades de Manejo para la Conservación de la Vida Silvestre en México

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