Conservation In The United States Research Articles

Review: Heritage Conservation in the United States: Enhancing the Presence of the Past, by John H. Sprinkle

Review: <i>Heritage Conservation in the United States: Enhancing the Presence of the Past</i>, by John H. Sprinkle

Politics driving efforts to reduce biodiversity conservation in the United States

Politics driving efforts to reduce biodiversity conservation in the United States

Values, attitudes, and media exposure: Public perception of sharks and shark conservation in the USA

Public values and attitudes are increasingly relevant to wildlife conservation and management. For species historically perceived negatively, including sharks and predators, conservation action may be partially reliant on changing perceptions. We present the results of a large-scale, in-depth survey of public attitudes towards sharks and their conservation in the United States (n = 640). The survey covered a wide range of attitudes, beliefs, and practices, including where respondents encounter information about sharks, their perceptions of current conservation threats and attack risk, their interest in and self-reported knowledge about sharks, what value they attribute to sharks, what policy approaches to shark conservation they most support, and their attitudes regarding the personal relevance of and their relative responsibility for shark conservation. Results deepen our understanding of cultural trends around wildlife, demonstrating the potential influence of value shifts on other, more specific attitudes. Findings highlight a need for a conservation focus in media and messaging, as public perceptions, including potential biases or misperceptions, track closely with aggregate media coverage, and exposure to media coverage of shark bites is associated with beliefs that these events are common. Finally, we found a tendency to assign blame for shark declines to “others” outside of the United States, particularly commercial fishers in Asia, and little sense of personal responsibility or efficacy related to shark conservation. These findings have implications for conservation messaging for diverse wildlife values, specifically around self-efficacy and personal responsibility.

The challenges of success: Future wolf conservation and management in the United States

Abstract Gray wolf (Canis lupus) recovery and conservation has been a remarkable success over the last 30 years in the United States. Remarkable success yields remarkable challenges, however. As populations expand, wolves will colonize more human-dominated landscapes and face numerous challenges, such as fragmented habitats, barriers to dispersal, and increased encounters with humans, pets, and livestock. In such areas, conflicts between humans and wolves will increase. We summarize several major scientific and social challenges that wolf conservation, recovery, and management will face in the coming years. In addition, we suggest actions to help address each challenge. Future wolf conservation in the United States will be affected by the ability of managers to predict colonization and dispersal dynamics, to reduce hybridization and disease transmission, to mitigate and deter wolf–livestock conflicts, to harvest wolves sustainably while satisfying diverse stakeholders, to avert a reduction in tolerance for wolves due to a disinterest in nature, and to engage diverse stakeholders in wolf conservation to avoid management by ballot initiative or legislative and judicial decrees.

The eco-munitionary subject: Conservation with and of firearms

The Pittman-Robertson Act of 1937 was a transformative piece of legislation for wildlife management and conservation in the United States, incentivizing the creation of state wildlife agencies and establishing funding mechanisms for these agencies. The legislation directs an excise tax on firearms, ammunition, and archery equipment to a fund to support wildlife restoration projects by state wildlife agencies. In 2021 alone, this generated more than $1 billion in project funds. Although commonly framed as a user pays model of conservation whereby hunters fund wildlife management, most of the excise taxes collected on firearms and ammunition are now associated with non-hunting uses. Despite this disconnect, many firearms industry groups continue to support and promote their relationship to Pittman-Robertson. Here, we examine the role of Pittman-Robertson in shaping the relationship between firearms and conservation and seek to understand how this relationship is reproduced. We examine this shifting relationship through an analysis of amendments to Pittman-Robertson since its creation and a discourse analysis of contemporary materials from web sites of firearms, hunting, shooting, and conservation organizations. Drawing on the concept of environmentality and diverse ecologies, we argue that Pittman-Robertson has contributed to the production of, and been re-shaped by, a distinct environmental actor: the eco-munitionary subject.

The geography of giving: Nonprofit philanthropy, public parks and land conservation in the United States

AbstractFaced with budget cutbacks, state and local governments struggle to adequately fund public parks and support land conservation. “Support nonprofits” are charitable organizations soliciting voluntary contributions of money, property, and service to protect parks and natural systems (Gazley, 2015). From 2000 to 2015, the number of support nonprofits increased by 188% and total nonprofit revenue increased by 263%, outpacing growth in public charities nationwide (NCCS). The rapid growth in support nonprofits prompts key questions about access and equity: Which communities benefit from support nonprofits? Do support nonprofits advocate for public land conservation? Using a novel national dataset pairing large nonprofits with the counties they serve, the article has three key findings: (1) counties in metropolitan areas with well‐educated, liberal residents are more likely to have a support nonprofit fundraising for public land, and (2) there is no correlation between public funding for parks and support nonprofit presence. In addition to philanthropy, (3) counties with support nonprofits are more likely to pass ballot initiatives funding public land conservation. It is imperative that policy‐makers and conservation advocates consider how nonprofit philanthropy maps on to—and augments—existing inequality in access to parks and natural resource conservation.

Conservation easements: A tool for preserving wildlife habitat on private lands

AbstractConservation easements are an essential tool for conserving private lands, and they have great potential for enhancing wildlife habitat and biodiversity. Private land conservation in the United States is likely to increase in the coming years, in light of Executive Order No. 14,008, issued by President Joseph Biden on January 27, 2021, which set a goal of conserving at least 30% of U.S. lands and waters by 2030 (Executive Office of the President 2021). There is, therefore, a need to evaluate the effect of conservation easements on wildlife habitat and biodiversity and to make recommendations for further enhancing the effectiveness of easements. Herein we propose a shift from primarily negative clauses and restrictive language to a more affirmative approach, developing language to proactively improve management of properties under conservation easement in order to maximize benefits to wildlife and ecosystems. In addition, we identify areas for further research on landowner perceptions and experiences regarding conservation easements.

Back to the future: Indigenous relationality, kincentricity and the North American Model of wildlife management

For more than a century, wildlife conservation in the United States has been built on the notion that nonhuman animal populations are resources to be regulated by law and managed efficiently, according to the best available science and in the public trust. This approach, known as the North American Model of Wildlife Management, has come under increasing criticism for excluding diverse viewpoints that have the potential to advance both conservation and environmental justice goals. How might the greater inclusion of Indigenous worldviews and Indigenous Studies concepts, such as radical relationality and kincentricity, improve western wildlife management? In this paper, we review three case studies of tribal wildlife stewardship programs in the land currently known as California—the Maidu Summit Consortium’s beaver restoration project, the Karuk Tribe’s elk management program, and the Yurok Tribe’s condor recovery effort—that illuminate generative connections among ecological restoration, Indigenous cultural practices, community wellbeing, and environmental justice. Radical relationality and kincentricity offer enormous potential for informing stewardship and recovery efforts that produce more just outcomes for both people and wildlife.

Choice of prioritization method impacts recommendations for climate‐informed bird conservation in the United States

Climate‐informed spatial planning is urgently needed to guide initiatives aimed at both conserving biodiversity as a whole (e.g. protection of 30% of lands and waters by 2030) and recovering North American avifauna in particular. Various methods for prioritizing conservation areas exist, yet alternative methods may direct managers to different lands for protection, and thus varying recommendations for meeting area‐based targets. Here, we used bird species distribution models and landcover projections to systematically evaluate two widely used methods for prioritizing areas most likely to facilitate the persistence of multiple species under climate change: 1) in situ macrorefugia, identified as areas of high predicted species retention; and 2) complementarity‐based optimizations, identified using the Zonation conservation planning software. For 17 biogeographical groups in the continental United States, we compared priority areas for bird conservation derived from these two alternatives with respect to their spatial distributions and consensus (i.e. overlap), expected conservation outcomes (e.g. species and functional diversity), predicted climate change exposure, habitat characteristics, landscape configurations and degree of formal protection. Spatial distributions of priority areas differed by biogeographical group and method, with 40.5% consensus on average across groups. Consensus was extensive within mountainous and coastal regions, and limited at high latitudes (e.g. Alaska) and in flat, interior regions (e.g. grasslands). As expected, complementarity‐based optimizations more efficiently represented species than retention‐based in situ macrorefugia, especially for forest groups, and had greater overall biodiversity value and better habitat condition. Conversely, in situ macrorefugia encompassed higher elevations and larger contiguous patches and were expected to experience less winter‐season warming. Formal protection averaged &lt; 50% across biogeographical groups, regardless of prioritization method. Our findings illustrate the value of complementarity‐based optimizations for bird conservation under climate change. More broadly, comparing approaches for prioritizing areas for long‐term species persistence can reveal critical trade‐offs in recommendations for climate‐informed protected area planning.

Leadership: the Act of Making Way for Others

ABSTRACT Conservation in the United States (USA) is an elite field of mostly white, upper-middle-class women. While there have been efforts over the decades to diversify the field, they have not been successful in significantly changing the demographics. In January 2020, the authors embarked on addressing one aspect of diversification: shifting the culture from one of exclusion to one that listens to and takes direction from those who are excluded. We planned a workshop we thought was designed to include the excluded. We found it was still steeped in practices that maintain the dominant culture. This paper outlines how the experience of the global pandemic, the move from an in-person to an online workshop, and the impact of the social justice uprising resulting from George Floyd’s murder fundamentally changed how we designed and led this workshop. Our growth was shaped significantly by developing an understanding of White Supremacy Culture (WSC), a system where perfectionism, defensiveness, paternalism, either/or thinking, individualism, and objectivity help maintain the status quo. This new perspective informed the creation of a series of sessions where we acknowledged, examined, and deconstructed power and privilege. We learned that if we want to achieve inclusion, we must understand the current culture of exclusion and the ways it prevents the work of building inclusive spaces. Though WSC as defined here is specific to the USA, cultures of exclusion exist worldwide. Lessons learned from trying to dismantle WSC in US conservation can be applied more broadly to create equitable professional and social communities around the world.

Introduction to special section on wildlife agency organizational change: Embracing the challenge of adaptive wildlife conservation in the United States

Introduction to special section on wildlife agency organizational change: Embracing the challenge of adaptive wildlife conservation in the United States

Galliform exclusion from the Migratory Bird Treaty Act has produced an alternate conservation path, but no evidence for differences in population status

Abstract The Migratory Bird Treaty Act (MBTA) is critical to avian conservation in the United States, both through its protection of migratory birds and as a catalyst for a century of coordinated avian conservation. While more than 1,000 species are protected by MBTA, of extant bird species native to the continental U.S., only 20 species belonging to the order Galliformes are explicitly excluded. Management of galliforms has occurred largely without direct federal oversight, placing this group on a fundamentally different conservation path during the century following MBTA passage. In this paper, we review the historical context and biological justification for exclusion of galliforms from MBTA and synthesize how their present-day conservation differs from that of migratory birds. We find the most prominent difference between the two groups involves the scope of coordination among stakeholders. The U.S. government, primarily via the Department of Interior, acts as de facto coordinating body for migratory bird conservation and plays the central role in oversight, funding, and administration of management in the United States. In contrast, galliform management falls primarily to individual state wildlife agencies, and coordinated conservation efforts have been more ad hoc and unevenly spread across species. Migratory birds benefit from an almost universally greater scope of research and monitoring, scale of habitat conservation, and sophistication of harvest management compared with galliforms. Galliform harvest management plans, in particular, are less likely to use measurable objectives, reporting of uncertainty in population parameters, and explanation of harvest management techniques. Based on a review of species status lists (e.g., the U.S. Endangered Species Act), we found no evidence that galliforms were more frequently listed than migratory species. Regional trend estimates from the North American Breeding Bird Survey (BBS) were more likely to be negative for galliforms over the period 1966–2015, but this was primarily driven by Northern Bobwhite (Colinus virginianus). Data to assess galliform population status are generally poor, which complicates assessment for roughly half of galliform species. Increased support for coordination among state agencies and other stakeholders, similar to that applied to migratory birds, could help to ensure that galliform conservation is poised to tackle forthcoming challenges associated with global change.

Acres for the Affluent: An Interactive Model of Nonprofit Resources and Demand Heterogeneity

AbstractAccording to the theory of government failure, nonprofit organizations emerge when governments fail to provide goods or services to a public with heterogeneous demands. This study approaches this fundamental theory of the nonprofit sector from a pluralist political viewpoint, marrying the theory of government failure to resource-driven nonprofit arguments via updated modeling and measurement strategies. This article proposes a new, conditional demand heterogeneity hypothesis, wherein the effect of demand heterogeneity on the nonprofit sector increases in the presence of increasing resources: nonprofit service delivery is most likely when those experiencing government failure have access to resources. This article is the first to test supply and demand nonprofit arguments in tandem using an interactive modeling specification and the first to operationalize demand heterogeneity using policy-based measures. I employ a finite distributed lag model with an interactive term in a time series, cross-sectional analysis of public and nonprofit land conservation in the United States. I find that nonprofit land conservation increases when citizens express greater environmental concern but only in the presence of increasing disposable income. Examining nonprofit theory within the context of land conservation provides a comparable measure of government and nonprofit service provision, controls for the nature of the good provided by these institutions, and allows for a policy-driven measure of demand heterogeneity, improving upon previous studies’ employment of diversity-based proxy measures. The results advance our understanding of how to test and measure demand heterogeneity nonprofit arguments and suggest that access to resources conditions which interests find expression in nonprofit organizations.

Review: Saving Spaces: Historic Land Conservation in the United States, by John H. Sprinkle Jr.

Review: <i>Saving Spaces: Historic Land Conservation in the United States</i>, by John H. Sprinkle Jr.

Managing Demand-Side Water Conservation in the United States: An Audience Segmentation Approach

The availability of fresh water affects public health and living standards around the globe, yet water resources are being rapidly depleted by unsustainable human activities. Strained freshwater resources will perpetuate unless the public is made aware of the severity of water scarcity issues. Audience segmentation, used frequently by environmental communicators to target unreached groups, is a social marketing strategy that segments audiences with shared characteristics to inform the development of effective communication messages. The purpose of this study was to determine characteristics of audience segments based on their level of water conservation behaviors. An online survey of the United States general public captured levels of water conservation behaviors based on how consumers prepare to vote on policy and intent to engage in water conservation behaviors. Cluster analysis resulted in two audience segments: lower water conservation and higher water conservation. Further analysis indicated significant demographic differences between the segments. The lower water segment presented less education, more moderate or conservative political beliefs, and lower family income levels than the higher water segment. Communication messages for the lower water segment should align with these characteristics, including using less scientific verbiage, linking moderate and conservative perspectives with water conservation, and emphasizing economic gain/loss.

Extreme climate increased crop nitrogen surplus in the United States

Increasing extreme climate conditions present significant threats to crop nitrogen (N) management and environmental conservation in the United States. Previous studies have examined the impacts of extreme climate on crop production but often overlooked its impacts on N loss from agricultural areas to the environment. Here we examined the relationship between county-level N surplus (the part of N that is not recovered by crops) and extreme climate conditions for corn in the U.S. during 1981–2016. We adopted multi-source long-term datasets of corn N budget and growing season (defined from May to August) maximum temperature and precipitation for each corn-planting county. Compared with the long-term N surplus trend, we found an increase of 51% and 47% in corn N surplus associated with extremely high temperature and extremely low precipitations, respectively. A moderate N surplus increase (20%) was associated with extremely high precipitations, while an N surplus decrease of 14% was shown to be related to extremely low temperatures. Across the U.S., the Midwest and the Northern Great Plains were identified as N surplus hotspots when extreme climate conditions occur. As the major corn-planting region, the Midwest accounted for 35% of the national extreme county-year samples but yielded 68% of the national total N surplus associated with extreme climate conditions. Our results highlighted the urgency of understanding the impacts of extreme climate conditions on crop nutrient losses and identifying the effective intervention practices to adapt to more frequent climate extremes in the future.

Hunting for a Solution

Hunting for a Solution

Subterranean freshwater gastropod biodiversity and conservation in the United States and Mexico

Many taxonomic groups successfully exploit groundwater environments and have adapted to a subterranean (stygobiotic) existence. Among these groups are freshwater gastropods (stygosnails), which represent a widespread and taxonomically diverse component of groundwater ecosystems in North America. However, owing to sampling difficulty and lack of targeted study, stygosnails remain among the most understudied of all subterranean groups. We conducted a literature review to assess the biodiversity and geographic associations of stygosnails, along with the threats, management activities, and policy considerations related to the groundwater systems they inhabit. We identified 39 stygosnail species known to occur in a range of groundwater habitats from karst regions in the United States and Mexico. Most stygosnails exhibit extreme narrow-range endemism, resulting in a high risk of extinction from a single catastrophic event. We found that anthropogenically driven changes to surface environments have led to changes in local hydrology and degradation of groundwater systems inhabited by stygosnails such as increased sedimentation, introduction of invasive species, groundwater extraction, or physical collapse of water-bearing passages. Consequently, 32 of the 39 described stygosnail species in the United States and Mexico have been assessed as imperiled under NatureServe criteria, and 10 species have been assessed as threatened under International Union for Conservation of Nature criteria. Compared with surface species of freshwater snails, stygosnail conservation is uniquely hindered by difficulties associated with accessing subterranean habitats for monitoring and management. Furthermore, only three species were found to have federal protection in either the United States or Mexico, and current laws regulating wildlife and water pollution at the state and federal level may be inadequate for protecting stygosnail habitats. As groundwater systems continue to be manipulated and relied on by humans, groundwater-restricted fauna such as stygosnails should be studied so unique biodiversity can be protected.

Collaborative conservation in the United States: A review of motivations, goals, and outcomes

For centuries, communities around the globe have worked together to manage resources—a process often referred to as community-based conservation. More recently in the US, diverse stakeholders have partnered to address complex environmental issues that span land ownership or administrative boundaries, calling these efforts collaborative conservation. Reviews of community-based and collaborative conservation have historically focused on developing countries. To synthesize published information on U.S.-focused groups, we conducted a literature review with the following objectives: 1) characterize geographic distribution, types of participants, and sources of funding for these groups; 2) assess issues motivating group formation, goals, activities to achieve those goals, and outcomes; 3) identify whether these goals, activities, and outcomes were biophysical, social, and/or economic. To accomplish these objectives, we searched for relevant peer-reviewed journal articles, book chapters, and reports in online databases from 1800's-2017. Our review resulted in 245 documents describing 296 collaborative conservation groups across all 50 states (primarily the Western U.S.) and the District of Columbia. The top three issues motivating collaborative group formation included impacts of land and resource degradation on livelihoods, water quality and management, and managing land and resources across ownership boundaries. We found that there was little published information on the outcomes of group activities (16% of groups). For the limited number of groups for which the literature reported outcomes, there was no relationship between positive outcomes and group characteristics. Our findings suggest that renewed efforts to evaluate the impact of collaboration on conservation are warranted and could support learning and improved action.

The Use of Psychoacoustics in Marine Mammal Conservation in the United States: From Science to Management and Policy

Underwater sound generated from human activities has been long recognized to cause adverse effects on marine mammals, ranging from auditory masking to behavioral disturbance to hearing impairment. In certain instances, underwater sound has led to physical injuries and mortalities. Research efforts to assess these impacts began approximately four decades ago with behavioral observations of large whales exposed to seismic surveys and rapidly progressed into the diverse field that today includes studies of behavioral, auditory, and physiological responses of marine mammals exposed to anthropogenic sound. Findings from those studies have informed the manner in which impact assessments have been and currently are conducted by regulatory agencies in the United States. They also have led to additional questions and identified information needed to understand more holistically the impacts of underwater sound, such as population- and species-level effects, long-term, chronic, and cumulative effects, and effects on taxa for which little or no information is known. Despite progress, the regulatory community has been slow to incorporate the best available science in marine mammal management and policy and often has relied on outdated and overly simplified methods in its impact assessments. To implement conservation measures effectively, regulatory agencies must be willing to adapt their regulatory scheme to ensure that the best available scientific information is incorporated accordingly.