You are here

Featured Resource

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
9/15/21
An Assessment of the Need for Native Seeds and the Capacity for Their Supply: Interim Report (2020)

This report describes the first phase of an examination of some of the nation’s needs for
native plant seeds (a shorthand term to include all forms of native propagative plant material)
and of the capacity to meet those needs. Across the...

Resource
12/8/20
Caution Needed When Predicting Species Threat Status for Conservation Prioritization on a Global Scale

A widely accepted approach to assess extinction risk, and a key source of data underpinning the IPBES report, is the IUCN Red List of Threatened Species (hereafter Red List). However, with only 9%of plants represented by assessments at the latest...

Resource
5/4/20
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
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
Shifts in the Abiotic and Biotic Environment of Cultivated Sunflower under Future Climate Change

Sunflower is a unique model species for assessing crop responses and adaptation to climate change. We provide an initial assessment of how climate change may influence the abiotic and biotic environment of cultivated sunflower across the world. We find...

Resource
2/27/19
GloPL, a global data base on pollen limitation of plant reproduction

In a pollen supplementation experiment, fruit or seed production by flowers exposed to natural pollination is compared to that following hand pollination either by pollen supplementation (i.e. manual outcross pollen addition without bagging) or manual...

Resource
11/26/18
Phylogeny and source climate impact seed dormancy and germination of restoration relevant forb species

For many species and seed sources used in restoration activities, specific seed germination
requirements are often unknown. Because seed dormancy and germination traits can be
constrained by phylogenetic history, related species are often...

Resource
11/21/18
A Reforestation Profile of the U.S. Virgin Islands

This article profiles past and present deforestation and reforestation in the U.S. Virgin Islands, along with the geography and ecology of the three islands. The islands of St. Thomas and St. John form one ecological and cultural unit, whereas St....

Resource
4/6/18
Generalized provisional seed zones for native plants

Deploying well-adapted and ecologically appropriate plant materials is a core component of successful restoration projects. The USDA Forest Service has developed generalized provisional seed zones that can be applied to any plant species in the United...

Resource
3/29/18