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A Call to Action for Ash Tree Conservation and Resistance Breeding

Ash tree species in North America are under mortal threat from the Emerald Ash Borer (EAB), now in 35 states and five Canadian provinces. There are ongoing efforts to conserve this native tree species by producing genetically diverse, resistant...

Resource
3/30/20
Cyanea kuhihewa: Rediscovering one of Hawai'i's rarest trees

With 90% of its nearly 1,400 native plants classified as endemic, Hawai'i has one of the highest levels of endemism of any floristic region of the world. Although Cyanea is one of the most species-rich flowering plant genera in Hawai'i, nearly half of...

Resource
2/25/20
Classifying Hawaiian plant species along a habitat generalist-specialist continuum: Implications for species conservation under climate change

Plant communities on tropical high islands, such as the Hawaiian Islands, are predicted to
experience rapid climate change, resulting in novel climates. If increased temperature and/
or drought exceed plant species’ current tolerances,...

Resource
2/14/20
Bartlett: Needle Diseases of Conifers

Needlecast and needle blight are terms applied to a variety of foliage disorders of many coniferous species. These diseases are usually more severe on young trees or on trees growing outside of their natural range. Disease severity and corresponding...

Resource
2/10/20
Mycorrhizas for a changing world: Sustainability, conservation, and society

Mycorrhizal fungi, of all types, hold huge significance for our planet and society. By forming mutualistic symbioses with the vast majority of land plants, mycorrhizas play an essential role
in the formation and maintenance of global ecosystems...

Resource
1/29/20
Chilling consequences: Herbarium records reveal earlier reproductive phenology of winter annual gladecress in a wetter, cooler climate

Plant phenological responses to global warming are well studied. However, while many locations are experiencing increased temperatures, some locations are experiencing climate cooling. Little work has been conducted to understand plant phenological...

Resource
1/29/20
Plants on the Move: How Public Gardens Can Help Control Invasive Plants

Public botanical gardens and arboreta are living museums and as such, their core missions
include the collection and display of herbaceous and woody plants from their local region or
from around the world. To fulfil this mission, gardens...

Resource
1/23/20
Can invasive species replace native species as a resource for birds under climate change? A case study on bird-fruit interactions

Wild fruits are an important food source for many north temperate-breeding landbirds during autumn migration and, in turn, birds provide the service of seed dispersal. Despite the importance of these autumn interactions, their potential to shift with...

Resource
1/16/20
Bartlett: Sonic Tomography

Sonic tomography, or the use of sound waves to detect decay in trees, is a relatively new technology available to arborists.  This technology uses the differential speed of sound as it moves through solid wood, decayed wood, or hollow space to create a...

Resource
1/15/20
Lightning Protection for Trees

Thousands of trees are struck by lightning every year. These trees will have varying degrees of damage ranging from complete shattering and destruction of the tree, to a slow lingering death, to virtually no apparent damage at all (Figure 1). When...

Resource
12/12/19
The Extended Specimen Network: A Strategy to Enhance US Biodiversity Collections, Promote Research, and Education

For more than two centuries, biodiversity collections have served as the foundation for scientific investigation of and education about life on Earth. The collections that have been assembled in
the past and continue to grow today are a...

Resource
12/3/19
Network modelling, citizen science and targeted interventions to predict, monitor and reverse bee decline

Pollination is fundamentally important to ecosystem function and human food security.
Recent reports of dramatic insect declines, and pollinator decline in particular,
have increased public awareness and political motivation to act to...

Resource
11/15/19
Research Gaps and Challenges in the Conservation and Use of North American Wild Lettuce Germplasm

The North American crop wild relatives (CWR) of lettuce (Lactuca L.) represent an underexplored
pool of genetic diversity of potential value to breeding programs.  In this review, we examine the role of herbarium and genebank holdings in...

Resource
11/1/19
Public Gardens as Sentinels Against Invasive Species

From the American Public Gardens Association Plant Collections Management Symposium. Thursday, October 18, 2018 from Vancouver, Canada.

Resource
10/17/19
Curating Through a Different Lens Biocultural Collections and Traditional Knowledge

From the American Public Gardens Association Plant Collections Management Symposium. Thursday, October 18, 2018 from Vancouver, Canada.

Resource
10/17/19
Adapting a World Renowned Botanic Garden to Climate Change

From the American Public Gardens Association Plant Collections Management Symposium. Wednesday, October 17, 2018 from Vancouver, Canada. Landscape Succession Strategy, Melbourne Gardens 2016 – 2036. Keynote Presenter: Chris Cole

Resource
10/17/19
The Red List of US Oaks

The Red List of US Oaks report details for the first time the distributions, population trends, and threats facing all 91 native oak species in the U.S. using the IUCN Red List threat assessment platform, including updated versions of previously...

Resource
10/14/19
Oak decline in the United States

Oak decline is a slow-acting disease complex that involves the interaction of biotic and abiotic factors such as climate, site quality and advancing tree age. Oak decline occurs more commonly among red oak species, but white oaks are susceptible as...

Resource
10/14/19
Distributions and Conservation Status of Carrot Wild Relatives in Tunisia: A Case Study in the Western Mediterranean Basin

Crop wild relatives, the wild progenitors and closely related cousins of cultivated plant
species, are sources of valuable genetic resources for crop improvement. Persisting gaps
in knowledge of taxonomy, distributions, and...

Resource
10/2/19
Urban plant diversity in Los Angeles, California: Species and functional type turnover in cultivated landscapes

Urbanization is a large driver of biodiversity globally. Within cities, urban trees, gardens, and residential yards contribute extensively to plant biodiversity, although the consequences and mechanisms of plant cultivation for biodiversity are...

Resource
9/27/19

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