نتایج جستجو برای: visitation time
تعداد نتایج: 1892986 فیلتر نتایج به سال:
Introduction .............................................................................................................. 3 Table 1: Petition for Right of Visitation with Minor Child. Order for Payment of Fees. ....... 4 Section 1: Visitation with Grandchildren ........................................................................ 6 Table 2: Troxel vs. Granville ...............................
Scent stations usually are deployed in clusters to expedite data collection and increase the number of stations that can be operated for a given cost. Presumed benefits of cluster sampling may not be realized, however, unless cluster sizes are chosen with respect to sampling variation within and among clusters. To encourage and facilitate the use of efficient designs and reporting standards, we...
BACKGROUND Children of adolescent mothers may suffer because of parenting inadequacies. The use of volunteer home visitors to enhance parenting skills has not been well studied. OBJECTIVE To evaluate the effect of a volunteer model home visitation program on adolescent parenting outcomes. DESIGN Randomized trial with assignment to home visitation or control group. SETTING Urban, African A...
The movement of frugivores between remnant forests and successional areas is vital for tropical forest tree species to colonize successional habitats. The response of these species to the spatial structure of pasture tree cover is largely unknown. We studied avian frugivores that were found in primary forest edges and large pastures in eastern Amazonia, Brazil. We determined how the small-scale...
Native bees provide essential pollination services to cultivated and wild plants worldwide. Despite the need to conserve pollinators, the foraging patterns of native bees are poorly understood. Classic concepts of resource use have typically categorized bee species as specialists or generalists based on floral visitation patterns. While intraspecific variation in bee foraging likely depends on ...
Ronda Drahozal is a staff nurse in the medical ICU in the Department of Nursing and Patient Care Services at the University of Iowa Hospitals and Clinics in Iowa City, Iowa. lead to deterioration in hemodynamic or intracranial pressure indices. Nurses, as patient advocates, desire to limit potentially detrimental stimuli. Studies have found a decrease or no significant change in heart rate, blo...
Pollinator-plant relationships are found to be particularly vulnerable to land use change. Yet despite extensive research in agricultural and natural systems, less attention has focused on these interactions in neighboring urban areas and its impact on pollination services. We investigated pollinator-plant interactions in a peri-urban landscape on the outskirts of the San Francisco Bay Area, Ca...
Abundance and visitation of pollinator assemblages tend to decrease with altitude, leading to an increase in pollen limitation. Thus increased competition for pollinators may generate stronger selection on attractive traits of flowers at high elevations and cause floral adaptive evolution. Few studies have related geographically variable selection from pollinators and intraspecific floral diffe...
There is growing concern that current pollinator decline will affect the reproduction of plant species, potentially driving a decline in plant population densities. We experimentally tested whether a reduction in flower visitation caused a reduction in fertilization rate in several species, and whether any reduction in fecundity of species depends on their degree of reproductive dependence on p...
Sustainable agricultural landscapes by definition provide high magnitude and stability of ecosystem services, biodiversity and crop productivity. However, few studies have considered landscape effects on the stability of ecosystem services. We tested whether isolation from florally diverse natural and semi-natural areas reduces the spatial and temporal stability of flower-visitor richness and p...
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