How Much Heirs’ Property Is There? Using LightBox Data to Estimate Heirs’ Property Extent in the U.S.

The ramifications of a tenancy in common or heirs’ property ownership are extensive. This kind of tenuous ownership affects not only individual families but also the economic health of the typically minority and lower-wealth communities where these properties tend to cluster. Very little research has identified heirs’ property extent at a broad scale, however. We present results of our approach to identifying heirs’ parcels for every county and census tract in the U.S., using geospatial methodologies and aggregated parcel records acquired from LightBox. The method estimated 444,172 heirs’ parcels for the U.S., not including territories. The combined acreage is 9,247,452 worth $41,324,318 billion. We discuss shortcomings of secondary parcel data and the problems this presents for accurately assessing heirs’ property extent, while the spatial location aspect allows us to analyze for spatial patterns such as clustering, which supports new analyses of issues associated with heirs’ property

Heirs’ Property: Where, How Much, and Why Does It Matter?

Heirs’ property comes into being when the owner of real property (usually a house and/or land) dies without a will. All heirs (e.g., spouse and children) become owners of an undivided interest in the property, with the division determined by state law. Heirs’ property is significant as a social and historical phenomenon because property has been passed down without wills across multiple generations of Blacks in the South and whites in Appalachia because limited educational opportunities and patterns of exploitation led them to distrust the legal system. Heirs can number in the hundreds, presenting obstacles and vulnerabilities and limiting property ownership as a means of building intergenerational wealth. Quantifying the extent and value of heirs’ property is necessary to inform legislation and policy, and to guide future research. We summarize the findings of two peer-reviewed studies designed to meet these needs

Environmental change: prospects for conservation and agriculture in a southwest Australia biodiversity hotspot

Accelerating environmental change is perhaps the greatest challenge for natural resource management; successful strategies need to be effective for decades to come. Our objective is to identify opportunities that new environmental conditions may provide for conservation, restoration, and resource use in a globally recognized biodiversity hotspot in southwestern Australia. We describe a variety of changes to key taxonomic groups and system-scale characteristics as a consequence of environmental change (climate and land use), and outline strategies for conserving and restoring important ecological and agricultural characteristics. Opportunities for conservation and economic adaptation are substantial because of gradients in rainfall, temperature, and land use, extensive areas of remnant native vegetation, the ability to reduce and ameliorate areas affected by secondary salinization, and the existence of large national parks and an extensive network of nature reserves. Opportunities presented by the predicted environmental changes encompass agricultural as well as natural ecosystems. These may include expansion of aquaculture, transformation of agricultural systems to adapt to drier autumns and winters, and potential increases in spring and summer rain, carbon-offset plantings, and improving the network of conservation reserves. A central management dilemma is whether restoration/preservation efforts should have a commercial or biodiversity focus, and how they could be integrated. Although the grand challenge is conserving, protecting, restoring, and managing for a future environment, one that balances economic, social, and environmental values, the ultimate goal is to establish a regional culture that values the unique regional environment and balances the utilization of natural resources against protecting remaining natural ecosystems

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

Exploring Transiency in Four Urban Forest Patch Neighborhoods: Atlanta, Georgia, USA

This exploratory study begins to unpack the association between involuntary neighborhood transiency (i.e., forced household moves) and civic environmental stewardship, focusing on four neighborhoods adjacent to urban forest patches in the City of Atlanta, Georgia, USA. The patches emerged on the sites of former public housing communities after the city razed housing projects in the first decade of the 2000s. Given intense competition for city land, e.g., affordable housing needs versus greenspace preservation, we might expect neighborhood-level inquiry regarding plans for these properties; however, there is no indication of popular interest in the sites. We suggest that such engagement is inhibited, in part, by involuntary neighborhood transiency as the neighborhoods surrounding the patches are inhabited mostly by low-income African American renters, a highly transient population. This is the first phase of a study that will eventually examine the association between transiency and greenspace civic engagement. In this exploratory step, we examine involuntary neighborhood transiency as an a priori social condition that necessarily influences people’s engagement with urban greenspaces. Building on input from community members, research by Stephanie DeLuca and colleagues, and Matthew Desmond’s work on evictions in Milwaukee, Wisconsin, we operationalize transiency in terms of Housing Choice Voucher units and eviction rate to assess the extent to which these indicators localize in the four urban patch neighborhoods. A geospatial cluster analysis indicated that both measures concentrate in the neighborhoods adjacent to the forest patches, and they are positively associated. Given these associations, we recommend further research examining how various forms of involuntary moving may ultimately inhibit civic environmental stewardship

Inter-basin surface water transfers database for public water supplies in conterminous United States, 1986–2015

Abstract The manipulation of water resources is a common human solution to water-related problems. Of particular interest because of impacts on both source and destination is the anthropogenic movement of water from one basin to another, or inter-basin transfers (IBTs). In the United States, IBTs occur widely in both wet and dry regions, but IBT data are not collated and served in a coordinated way. Thus researchers wishing to account for transfers between basins have faced difficulty in doing so. Here we present the outcome of a systematic investigation into inter-basin surface water transfers connected with public water supplies in the conterminous United States (CONUS), 1986 to 2015. The present open-access geodatabase includes transfer volumes collected, evaluated, and compiled from disparate sources. We provide an updated snapshot of CONUS IBTs at a higher spatial resolution of points of withdrawal and delivery than previous datasets. This paper puts the national inter-basin transfer data in context, and shows how we acquired, structured, and validated the locations and volumes of surface water transfers in public water systems

Carbon sources for aquatic food webs of riverine and lacustrine tropical waterholes with variable groundwater influence

Food web studies integrate ecological information and provide understanding of ecosystem function. Aquatic ecosystems of the Kimberley region (north-western Australia) have high conservation significance as hotspots for maintaining local and regional biodiversity. This study investigated the influence of waterhole type and persistence on the strength of consumer reliance on local energy resources for aquatic food webs. Changes in water isotopic composition indicated groundwater inputs were enough to overcome evaporative losses in some waterholes. Other waterholes had varying levels of isotope enrichment suggesting insufficient groundwater input to ‘compensate’ for evaporative loss. C and N isotope analysis indicated considerable overlap among energy sources in waterholes between macrophytes and periphyton but gradient analysis indicated that periphyton is a major carbon source for aquatic consumers. Groundwater-fed waterholes appeared to have higher quality food sources (indicated by lower C : N ratios), but there was minimal evidence that direct groundwater contributions were related to food web processes. Nonetheless, in a region where groundwater is influential in maintaining aquatic habitats, future development of groundwater reserves will likely affect the ecological and cultural value of freshwater wetlands by either reducing their permanence or size or indirectly through possible alteration to the role of periphyton in supporting the food we

Catchment-Scale Governance in Northern Australia: A Preliminary Evaluation

Northern Australia covers vast and diverse landscapes comprising largely public and Indigenous tenures. Long-term Aboriginal and pastoral management, isolation and a challenging terrain and climate have shaped a landscape of national, if not international, conservation value. Northern Australia, however, also has a fragile economy, and there is tension amongst Indigenous, economic and conservation interests. Managed poorly, emerging conflicts could damage the real opportunities that each presents, resulting in major land and natural resource-use conflicts or unsustainable development. As healthy governance systems are the key to effective natural resource management (NRM), this paper presents a preliminary exploration of the health of NRM governance across Northern Australia, with a focus on the catchment scale. We analysed three focal catchments; the Fitzroy in the Kimberley region of Western Australia, the Daly in the top end of the Northern Territory and the Gilbert in north-western Queensland. We find that the governance of each catchment has different strengths and weaknesses depending on history and context. Common challenges, however, include shifting national and state/territory policy frameworks, fragmented funding of science and limited consensus building via spatial decision support. From this analysis, we explore potential reforms in catchment governance across this increasingly contested landscape

Integrated cross-realm planning: a decision-makers' perspective

Pursuing development and conservation goals often requires thinking and planning across terrestrial, freshwater and marine realms because many threats and social–ecological processes transcend realm boundaries. Consequently, effective conservation planning must consider the social and ecological links between realms and follow a cross-realm approach to allocate land/water uses and conservation actions to mitigate cross-realm threats and maintain cross-realm ecological processes. Cross-realm planning requires integrating multiple objectives for conservation and development, and assessing the potential co-benefits and trade-offs between them under alternative development scenarios. Despite progress in cross-realm planning theory, few fully-integrated and applied cross-realm plans exist. The gaps between research and implementation are not unique to cross-realm planning, but are accentuated by the complexity of spatial decision-making entailed. Based on a collaborative process including scientists, resource managers and policy-makers, we developed an operational framework for cross realm planning based on up-to-date thinking in conservation science, but offering practical guidance to operationalise real-world planning. Our approach has a strong theoretical basis while addressing the visions and needs of decision-makers. We discuss the foundations and limitations of current approaches in cross-realm planning, describe key requirements to undertake this approach, and present a real-world application of our framework