Clark's Nutcrackers Harvest Sugar Pine Seeds from Cones
نویسندگان
چکیده
منابع مشابه
From Pine Cones to Read Clouds: Rescaffolding the Megagenome of Sugar Pine (Pinus lambertiana)
We investigate the utility and scalability of new read cloud technologies to improve the draft genome assemblies of the colossal, and largely repetitive, genomes of conifers. Synthetic long read technologies have existed in various forms as a means of reducing complexity and resolving repeats since the outset of genome assembly. Recently, technologies that combine subhaploid pools of high molec...
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We investigated the physical and burning characteristics of sugar pine (Pinus lambertiana Douglas) cones and their contribution to woody surface fuel loadings. Field sampling was conducted at the Yosemite Forest Dynamics Plot (YFDP), a 25.6 ha mapped study plot in Yosemite National Park, California, USA. We developed a classification system to describe sugar pine cones of different sizes and de...
متن کاملConvergent Patterns in the Selection Mosaic for Two North American Bird-dispersed Pines
The strength and outcome of interspecific interactions often vary across the landscape because of differences in community context. We investigated how the presence or absence of pine squirrels (Tamiasciurus spp.) influences the ecology and (co)evolution of seeddispersal mutualisms between Clark’s Nutcrackers (Nucifraga columbiana) and limber (Pinus flexilis) and whitebark (P. albicaulis) pines...
متن کاملTemperature effects on oxidative metabolism of dormant sugar pine seeds.
When dormant sugar pine (Pinus lambertiana L.) seeds were imbibed at 5 degrees C, they showed a rapid increase in O(2) uptake, ATP level, and moisture content during the first 4 days. This was followed by a plateau phase until 60 days, after which a second significant increase in all three features occurred as dormancy was broken. During the plateau phase, conventional CN-sensitive respiration ...
متن کاملRemoval of metoprolol from aqueous solutions by the activated carbon prepared from pine cones
Background: Metoprolol (MTP) with its low biodegradability is one of the most dominant micropollutant in the effluent of wastewater treatment plants. The aim of this study was to investigate the removal of metoprolol from aqueous solutions by the activated carbon prepared from pine cones. Methods: The pine cones were activated using thermal activation method. Characteristics of the adsorbent w...
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ژورنال
عنوان ژورنال: Western North American Naturalist
سال: 2010
ISSN: 1527-0904
DOI: 10.3398/064.070.0314