Studying Biodiversity on Private Lands

Hilty, Jodi A.; Merenlender, Adina M.

doi:10.1046/j.1523-1739.2003.01361.x

Cited by 94 publications

(70 citation statements)

References 23 publications

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“…A large proportion of land within Northern Ireland and the Republic of Ireland is privately owned and the difficulties of efficient monitoring on privately owned parcels of land may result in a bias towards a restricted set of ecological communities (Hilty and Merenlender 2003). At a landscape scale such unrepresentative sampling for monitoring schemes may lead to erroneous conclusions because public and private lands may differ in biodiversity and productivity.…”

Section: Developing a Culture Of Awareness Among Stakeholdersmentioning

confidence: 97%

The Importance of Stakeholder Engagement in Invasive Species Management: A Cross-jurisdictional Perspective in Ireland

et al. 2006

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The management of invasive non-native species is a frequent cause of conflict in the field of biodiversity conservation because perceptions of their costs and benefits differ among stakeholder groups. A lack of cohesion between scientific researchers, the commercial sector and policy makers lies at the root of a widespread failure to develop and implement sustainable management practices for invasive species. The crisis of this situation is intensified by drivers stemming from international conventions and directives to address invasive species issues. There are further direct conflicts between legislative instruments promoting biodiversity conservation on the one hand while liberalizing trade at the national, European and global level on the other. The island of Ireland provides graphic illustration of the importance of cross-jurisdictional approaches to biological invasions. Using primarily Irish examples in this review, we emphasize the importance of approaching risk assessment, risk reduction and control or eradication policies from a cost-efficient, highly flexible perspective, incorporating linkages between environmental, economic and social objectives. The need for consolidated policies between Northern Ireland and the Republic of Ireland is particularly acute, though few model cross-border mechanisms for such consolidation are available. The importance of engaging affected stakeholders through positive interactions is discussed with regard to reducing the currently fragmented nature of invasive species management between the two jurisdictions.

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Section: Developing a Culture Of Awareness Among Stakeholdersmentioning

confidence: 97%

The Importance of Stakeholder Engagement in Invasive Species Management: A Cross-jurisdictional Perspective in Ireland

et al. 2006

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“…In the United States, approximately 50% of rangelands are private lands . Among the species listed as threatened or endangered in the United States, 95% have at least some of their habitat on private lands, and 19% require habitat that exists exclusively on private land (Knight 1999, Hilty and Merenlender 2003, Merenlender et al 2004). This situation has led to a greater focus on maintaining ranches intact.…”

Section: Introductionmentioning

confidence: 99%

Opportunities and obstacles for rangeland conservation in San Diego County, California, USA

Farley¹,

Walsh²,

Levine³

2017

E&S

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ABSTRACT. Working landscapes such as rangelands are increasingly recognized as having high conservation value, providing a variety of ecosystem services, including food, fiber, habitat, recreation, open space, carbon storage, and water, in addition to a broad range of social benefits. However, conversion of rangelands to other land uses has been prevalent throughout the western United States, leading to greater attention in the conservation community to the importance of collaborating with private landowners. The level of interest in collaborative conservation among private landowners and the types of conservation programs they choose to participate in depend on the social, economic, and environmental context. We used GIS analysis and interviews with ranchers to evaluate rangeland conversion and participation in conservation programs among ranchers in San Diego County, California, USA, which is part of a biodiversity hotspot with high plant species richness and a large number of endemic and rare species. We found that 21,210 ha (3.1%) of rangelands were converted to other uses over the past 25 years, primarily for urbanization, while the area of public rangeland increased by 9%. Interviews revealed that ranchers in San Diego County have had limited involvement with most conservation programs, and a critical factor for nonparticipation was providing programs access to private land, along with other issues related to trust and social values. Among ranchers who had participated in conservation programs, the payment level and the agency or organization administering the program were key factors. Our results provide insight into factors influencing whether and when ranchers are likely to participate in conservation initiatives and illustrate that private and public land conservation are strongly linked and would be more effective if the two strategies were better integrated.

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“…Because more than 80% of California's oak woodlands fall under private ownership (Bolsinger 1988;Greenwood et al 1993), this research was conducted mostly on private and also some public properties in Sonoma County, California (Hilty and Merenlender 2001) (Figure 1). …”

Section: Study Areamentioning

confidence: 99%

Forecasting the effect of land-use change on native and non-native mammalian predator distributions

et al. 2006

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Intensive land use can fragment continuous natural areas into smaller patches, which may be too small to support viable populations of native fauna and more susceptible to invasion by alien species. We demonstrate the utility of combining species occurrence models with land-use change models to identify areas where future development may differentially affect wildlife. Occurrence data for native (e.g., gray fox, coyote, bobcat, mountain lion, striped skunk, raccoon) and non-native (e.g., domestic dogs, domestic cats, opossums) mammalian predators were collected from 188 remotely triggered camera locations across an oak woodland and vineyard landscape in northern California. The occurrence data were used in combination with landscape variables extracted using a geographic information system to build explanatory models of predator occurrence. These statistical models were used to derive two surfaces showing relative probability of occurrence for non-native and native predators. Then, a spatially explicit land-use change model was used to examine potential future predator distributions given potential future vineyard expansion.The probability distribution models generated hypothesized low probabilities of occurrence for native predators within large vineyard blocks, but higher probabilities within isolated vineyards and also in oak woodlands. The models suggest the highest probabilities of non-native predator occurrence fell within large blocks of vineyard. Using one possible future vineyard development scenario, the distribution models illustrate areas where probability of native predator occurrence may be reduced and where non-native predators may expand due to vineyard development. This technique could be applied to prioritize acquisition of critical wildlife habitat and maintain habitat connectivity for wildlife populations.

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Studying Biodiversity on Private Lands

Cited by 94 publications

References 23 publications

The Importance of Stakeholder Engagement in Invasive Species Management: A Cross-jurisdictional Perspective in Ireland

The Importance of Stakeholder Engagement in Invasive Species Management: A Cross-jurisdictional Perspective in Ireland

Opportunities and obstacles for rangeland conservation in San Diego County, California, USA

Forecasting the effect of land-use change on native and non-native mammalian predator distributions

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