Essays about: "pollen size"
Showing result 1 - 5 of 10 essays containing the words pollen size.
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1. INDIVIDUAL TRAIT MATCHING OF BUMBLEBEES (BOMBUS) AND FLOWERS ALONG AN ENVIRONMENTAL GRADIENT
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Insect pollinators serve a critical role in maintaining plant biodiversity and are especially susceptible to changes within their environment. To study the possible effects of seasonal variation in temperature, as well as climatic temperature increase on the plant-pollinator community, the relationship between bumblebee and flowering plant traits along an elevational gradient, representing warming-induced changes in plant community, were examined. READ MORE
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2. Individual trait matching of bumblebees (Bombus) and flowers along an environmental gradient
University essay fromAbstract : Insect pollinators serve a critical role in maintaining plant biodiversity and are especially susceptible to changes within their environment. To study the possible effects of seasonal variation in temperature, as well as climatic temperature increase on the plant-pollinator community, the relationship between bumblebee and flowering plant traits along an elevational gradient, representing warming-induced changes in plant community, were examined. READ MORE
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3. Does size matter? : A study on pollen size distribution and pollen viability in Silene latifolia and S. dioica
University essay from Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Pollen size dimorphism, i.e., when a plant produces more than one size of pollen, has been observed in several plant families but the underlying mechanisms have rarely been discussed. One of the hypotheses is that the smaller pollen produced by individuals with bimodal pollen size distributions are dead or non-viable. READ MORE
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4. Development of corrosion resistant coatings using natural biopolymer and pollen
University essay from KTH/MaterialvetenskapAbstract : Corrosion is a mechanism that highly reduces the lifetime of metals in different environments, especially in water or moisture environment. The worldwide maintenance cost due to corrosion is estimated in billions of dollars per year, and actual solutions in terms of coating usually contains toxic or environmentally harmful species. READ MORE
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5. A novel chitosan-stearic coating with bee-pollen microcapsules for corrosion protection
University essay from KTH/MaterialvetenskapAbstract : In this project a novel chitosan-stearic acid (CS-SA) coating with bee-pollen microcapsules for encapsulation of 2-mecraptobenzothiazole (MBT) as a waterborne formulation for a biocompatible corrosion protection coating was developed and the coating properties was analyzed. Hydrophobic stearic acid (SA) was crosslinked with via a carbodiimide reaction to form micelles and is assembled on the bee- pollen grains and the chitosan matrix was further self-crosslinked using glutaraldehyde (GA). READ MORE
