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Filtering by: Creator Cabrera Orozco, Yohanna Resource Type Article

Effect of wood moisture content and rod dosage on boron or fluoride movement through Douglas-fir heartwood

Creator:

Cabrera, Yohanna and Morrell, J.J.

Abstract:

The potential for moisture sorption by boron and fluoride rods following application of rods to wood to affect subsequent chemical diffusion was investigated in small Douglas-fir blocks conditioned to 30, 60, or 90 percent target moisture content (MC). MCs tended to decline over the 180-day test period, but there was...

Resource Type:

Article

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on boron or fluoride movement through Douglas-fir heartwood Yohanna Cabrera J.J. MorrellS
Hypercarnivorous apex predator could provide ecosystem services by dispersing seeds

Creator:

Sarasola, José Hernán, Zanón-Martínez, Juan Ignacio, Costán, Andrea Silvina, and Ripple, William J.

Abstract:

Large “hypercarnivorous” felids are recognized for their role as apex predators and hence as key elements in food webs and ecosystem functioning through competition and depredation. Here we show that cougars (Puma concolor), one of the largest and the most widely ranging apex felid predators with a strictly carnivorous diet,...

Resource Type:

Article

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. Top predators and biodiversity. Nature 436, 192 (2005). 25. Cabrera, A. L. Regiones fitogeográficas de