Biology and Taxonomy of the Dwarf Mistletoes

Hawksworth, Frank G.; Wiens, Delbert

doi:10.1146/annurev.py.08.090170.001155

Cited by 47 publications

(107 citation statements)

References 0 publications

Supporting

Mentioning

106

Contrasting

Order By: Relevance

“…Since 1972, YNP managers have allowed lightning-caused fires to burn in many instances, providing a proxy for possible dynamics in the early and middle 1800s. Based on fires that burned from 1972, Despain and Romme (1991 observed that lightning fires typically burn only a few hectares or less under most conditions, and that weather conditions in only five years during a 15-year period (1972)(1973)(1974)(1975)(1976)(1977)(1978)(1979)(1980)(1981)(1982)(1983)(1984)(1985)(1986)(1987) allowed fires to burn more than 100 ha (247 acres), namely, once every three years, on average. Looking at the area burned per year per million hectares from 1972), three important trends emerge:…”

Section: Firementioning

confidence: 99%

Historic range of variability for upland vegetation in the Medicine Bow National Forest, Wyoming

Dillon¹,

Knight²,

Meyer³

2005

View full text Add to dashboard Cite

An approach for synthesizing the results of ecological research pertinent to land management is the analysis of the historic range of variability (HRV) for key ecosystem variables that are affected by management activities. This report provides an HRV analysis for the upland vegetation of the Medicine Bow National Forest in southeastern Wyoming. The variables include live tree density, dead tree (snag) density, canopy cover, abundance of coarse woody debris, species diversity, fire return intervals, the abundance of various diseases, the proportion of the landscape in different land cover types, and the degree of patchiness in the landscape. The variables were examined at the stand and landscape scales, using information available in the literature and USFS databases. High-elevation landscapes were considered separately from low-elevation landscapes. Much of the report pertains to forests dominated by lodgepole pine, subalpine fir, and Engelmann spruce at high elevations, and by ponderosa pine and aspen at lower elevations. We defined the HRV reference period for the MBNF as approximately 1600 to 1860.Keywords: aspen, bark beetles, canopy gaps, coarse woody debris, comandra blister rust, dwarf mistletoe, Engelmann spruce, fire effects, disease in Rocky Mountain forests, forest fragmentation, insects in forests, interior forest, landscape ecology, lodgepole pine, mistletoe, mountain pine beetle, ponderosa pine, roads, Rocky Mountain forests, snags, spruce beetle, subalpine fir, subalpine forests, timber harvesting effects, white pine blister rust, wind in forests Executive SummaryThe challenges of sustainable land management have led to an increased emphasis on incorporating the results of science in the decision making process. One approach for accomplishing this objective is through the analysis of the historic range of variability (HRV) for key ecosystem variables that are affected by management activities. The rationale for HRV analyses is that the chances of sustainable forest management are greater if the variation in managed ecosystems includes the range of conditions that are expected at various scales in ecosystems relatively uninfluenced by humans. This report provides an HRV analysis for the upland vegetation of the Medicine Bow National Forest (MBNF).By definition, HRV analyses require the identification of specific variables and an estimation of how those variables fluctuated, at more than one scale, prior to the advent of resource extraction and management by EuropeanAmericans. A complete list of the variables that we examined is found in table 7. Examples include live tree density, dead tree (snag) density, canopy cover, abundance of coarse woody debris, species diversity, fire return intervals, the abundance of various diseases, the proportion of the landscape in different land cover types, and the degree of patchiness in the landscape. We examined variables at two scales-the stand and the landscape-and we separated high-elevation landscapes from low-elevation landscapes. Much of the repo...

show abstract

Section: Firementioning

confidence: 99%

Historic range of variability for upland vegetation in the Medicine Bow National Forest, Wyoming

Dillon¹,

Knight²,

Meyer³

2005

View full text Add to dashboard Cite

show abstract

“…Spaulding (1956) reports Chamaecyparis thyoides, an exotic planted in Croatia, is also infected ( Table 2). Turrill (1920Turrill ( , 1926 and Hawksworth and Wiens (1996) report Arceuthobium oxycedri from sites in present day Slovenia and Croatia (including Istria and Dalmatia, Table 7 and Map 6). The locations LikaKrbava and Valle Senjska reported by Hawksworth and Wiens (1996) in Hungary are probably the same as Lika Krbava above Zengg reported earlier by Turrill (1926) and now known as Senj.…”

Section: Former Yugoslav Republicsmentioning

confidence: 99%

“…In their updated monograph on Arceuthobium, Hawksworth and Wiens (1996) describe their frustrations in summarizing available records for the hosts and distribution of A. oxycedri. The labels on many early collections are scarcely legible and in unfamiliar languages.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hosts and geographic distribution of <i>Arceuthobium oxycedri</i>

Ciesla¹,

Geils²,

Adams³

2002

View full text Add to dashboard Cite

Data on hosts and geographic distribution of the juniper dwarf mistletoe, Arceuthobium oxycedri, are updated in light of changes in host nomenclature, political geography, and interpretation of reports and labels. Seventeen species of Juniperus, 3 Chamaecyparis, 5 Cupressus, and 1 Platycladus are reported as hosts. Infestations on several juniper hosts and all of its non-juniper hosts have resulted from introductions to areas within the natural range of the mistletoe. This dwarf mistletoe is reported from 31 countries across northern Africa, western Europe, the Balkans, Russia and other former Soviet Republics, the Near East, the Indian subcontinent, and western China. Previous reports from Bhutan and Hungary are corrected, and a report from Afghanistan is considered questionable. Located collection sites are shown on 13 regional and country maps. Juniper dwarf mistletoe is or is potentially an important disease agent in arid forests of numerous countries. Information on its hosts and distribution can help to make good decisions for maintaining forest health and productivity. Authors Acknowledgments

show abstract

“…Australian mistletoes continually draw upon the water and nutrient resources of their host and can thus flower and set fruit during dry seasons when little other nectar or fruit is available in the landscape (Paton and Ford 1977;Reid 1986;Watson 2001). In addition to flowering and fruiting at different times to most other plants, discontinuous ripening (both within a species and among species within communities) extends flowering and fruiting periods (Reid 1986;Hawksworth and Wiens 1996;Watson 2001). For example, most temperate southern Australian mistletoes flower during summer, in contrast to the largely spring and autumn flowering of most ornithophilous plant species present in the same regions (Reid 1986;Watson 2011).…”

Section: Introductionmentioning

confidence: 99%

Do bird species richness and community structure vary with mistletoe flowering and fruiting in Western Australia?

Napier

Mather²,

McWhorter

et al. 2014

Emu - Austral Ornithology

View full text Add to dashboard Cite

Abstract. Worldwide, mistletoes act as a keystone resource, providing food (nectar, fruit and foliage) and structural (nesting sites) resources to hundreds of fauna species. In Australia, loranthaceous mistletoes depend on birds for pollination and dispersal, and provide important nectar and fruit resources to a large number of nectarivorous and frugivorous species of bird. We investigated whether avian species richness and community structure varies with flowering and fruiting of two common mistletoe species (Loranthaceae : Wireleaf Mistletoe, Amyema preissii; and Box Mistletoe, A. miquelii), conducting monthly surveys of both birds and mistletoes over 1 year at five sites in south-western Western Australia (WA). Flowering and fruiting periods were distinct and differed both among sites and between mistletoe species. Nectar and ripe fruit were available for up to 5 months (Box Mistletoe) or 6-7 months (Wireleaf Mistletoe) at individual sites, but were available every month of the year across all sites. The presence of fruiting, but not flowering, mistletoe was associated with changes in bird community structure. Mistletoebirds (Dicaeum hirundinaceum) were significantly more likely to be recorded during months when ripe mistletoe fruit was present and the overall bird species richness was higher for these survey months. Mistletoes provide important resources, but further investigation is required to assess whether they act as a keystone resource in south-western WA.

show abstract

Biology and Taxonomy of the Dwarf Mistletoes

Cited by 47 publications

References 0 publications

Historic range of variability for upland vegetation in the Medicine Bow National Forest, Wyoming

Historic range of variability for upland vegetation in the Medicine Bow National Forest, Wyoming

Hosts and geographic distribution of <i>Arceuthobium oxycedri</i>

Do bird species richness and community structure vary with mistletoe flowering and fruiting in Western Australia?

Contact Info

Product

Resources

About