Arracacia xanthorrhiza Bancroft
... is far more important economically than other Andean roots and tubers. Their combined value is probably exceeded by arracacha alone. Although it is little known that arracacha was introduced to Brazil, in the southern states of this country it now probably covers a larger area than in any Andean cou ...
... is far more important economically than other Andean roots and tubers. Their combined value is probably exceeded by arracacha alone. Although it is little known that arracacha was introduced to Brazil, in the southern states of this country it now probably covers a larger area than in any Andean cou ...
Investigating the life history strategy of an African savanna tree
... Firstly, I would like to thank my supervisor, Prof Ed. Witkowski for his unwavering support and confidence in my abilities. He was always available for quick chats and drafts of chapters came back with detailed comments and helpful suggestions very quickly. His mentorship throughout my PhD experienc ...
... Firstly, I would like to thank my supervisor, Prof Ed. Witkowski for his unwavering support and confidence in my abilities. He was always available for quick chats and drafts of chapters came back with detailed comments and helpful suggestions very quickly. His mentorship throughout my PhD experienc ...
Microbial mobilization and immobilization of soil nitrogen
... concentration of compounds such as organic acids are relatively low (Hongve et al., 2000; Strobel, 2001), and if these are considered to be the substrate for microorganisms, the use of first order kinetics might be justified. To my knowledge, no studies have verified the assumption that the concentr ...
... concentration of compounds such as organic acids are relatively low (Hongve et al., 2000; Strobel, 2001), and if these are considered to be the substrate for microorganisms, the use of first order kinetics might be justified. To my knowledge, no studies have verified the assumption that the concentr ...
Context dependency in acorn predation and dispersal Apodemus sylvaticus
... organisms. Plant-animal interactions are a paradigmatic example of such ecological relationships, from antagonistic to mutualistic relationships, although determining its result might be difficult, like in the case of seed dispersal by rodents. Many rodent species are avid seed consumers, but also a ...
... organisms. Plant-animal interactions are a paradigmatic example of such ecological relationships, from antagonistic to mutualistic relationships, although determining its result might be difficult, like in the case of seed dispersal by rodents. Many rodent species are avid seed consumers, but also a ...
Food Web Responses to Augmenting
... first on fibrous roots and later on the cortex of major roots. Wounding of the major roots by these insects facilitates infection by Phytophthora spp. The resulting pest-disease complex can kill trees, and orchards are sometimes abandoned within several years after the insect is first detected. Mana ...
... first on fibrous roots and later on the cortex of major roots. Wounding of the major roots by these insects facilitates infection by Phytophthora spp. The resulting pest-disease complex can kill trees, and orchards are sometimes abandoned within several years after the insect is first detected. Mana ...
Ecological functions of earthworms in soil - Wageningen UR E
... reproductive rate, and habitat preferences. To make sense of this variety, ecologists often divide them into three groups based on Bouché (1977): (i) “anecic”, large species that dig and inhabit upright, deep burrows in soil, and come to the surface to feed on detritus*; (ii) “epigeic”, small and fa ...
... reproductive rate, and habitat preferences. To make sense of this variety, ecologists often divide them into three groups based on Bouché (1977): (i) “anecic”, large species that dig and inhabit upright, deep burrows in soil, and come to the surface to feed on detritus*; (ii) “epigeic”, small and fa ...
Artificial Regeneration of Major Oak (Quercus) Species
... vigor were positively correlated with seed dry mass. Kleinschmit and Svolba (1979) reported strong positive correlation between acorn weight and height growth of English oak (Quercus robur L.) and Durmast oak (Quercus petraea [Matt.] Liebl.) in Germany. Elsewhere, Bonfil (1998) observed that acorn m ...
... vigor were positively correlated with seed dry mass. Kleinschmit and Svolba (1979) reported strong positive correlation between acorn weight and height growth of English oak (Quercus robur L.) and Durmast oak (Quercus petraea [Matt.] Liebl.) in Germany. Elsewhere, Bonfil (1998) observed that acorn m ...
Soil macrofauna field manual – technical level
... Soil organisms are an integral part of agricultural ecosystems. The presence of a range of a diverse community of soil organisms is essential for the maintenance of productive soils. Soil organisms are responsible for a range of ecological functions and ecosystem services including: nutrient cycling ...
... Soil organisms are an integral part of agricultural ecosystems. The presence of a range of a diverse community of soil organisms is essential for the maintenance of productive soils. Soil organisms are responsible for a range of ecological functions and ecosystem services including: nutrient cycling ...
asian elephants are essential as seed dispersers in a
... dung is unlikely to negate elephants’ role in their dispersal. Seeds taken from elephant dung germinated as well or better than seeds from bovid dung or directly from fruit. Elephants were calculated to move seeds up to 10 times as far as domestic bovids. An empirical probability model estimated tha ...
... dung is unlikely to negate elephants’ role in their dispersal. Seeds taken from elephant dung germinated as well or better than seeds from bovid dung or directly from fruit. Elephants were calculated to move seeds up to 10 times as far as domestic bovids. An empirical probability model estimated tha ...
bc grasslands stewardship guide.indd
... he beauty and diversity of BC’s grasslands are unique. Grasslands are home to everything from lichen to curlews, salamanders to cacti, sharp-tailed grouse to elk. Visitors and residents use the grasslands for recreation. The cattle industry depends on healthy grasslands to help provide a secure food ...
... he beauty and diversity of BC’s grasslands are unique. Grasslands are home to everything from lichen to curlews, salamanders to cacti, sharp-tailed grouse to elk. Visitors and residents use the grasslands for recreation. The cattle industry depends on healthy grasslands to help provide a secure food ...
PC 222 Final report 2005
... such as Japan – biological control systems are in general less well-developed than in Western Europe, and furthermore, utilise native biological control agents (BCAs) which are both unavailable and unregistered in the UK. In other words, they would be classified as non-native organisms in the UK, th ...
... such as Japan – biological control systems are in general less well-developed than in Western Europe, and furthermore, utilise native biological control agents (BCAs) which are both unavailable and unregistered in the UK. In other words, they would be classified as non-native organisms in the UK, th ...
Restoring Wyoming Big Sagebrush
... sagebrush seedings in areas with exotic annual grass competition have had little success (Meyer 2003). Competitive effects are probably related to the inability of sagebrush seedlings to compete for soil moisture during establishment (Cook and Lewis 1963; Sturges 1977). Blaisdell (1949) found higher ...
... sagebrush seedings in areas with exotic annual grass competition have had little success (Meyer 2003). Competitive effects are probably related to the inability of sagebrush seedlings to compete for soil moisture during establishment (Cook and Lewis 1963; Sturges 1977). Blaisdell (1949) found higher ...
Acaricides – Biological Profiles, Effects and Uses in
... of acaricidal compounds acting on mitochondrial respiration process, that produces most of the energy in cells. This process includes two coupled parts: mitochondrial electron transport (MET) and oxidative phosphorylation. Although some of the older acaricides were known to inhibit respiration, the ...
... of acaricidal compounds acting on mitochondrial respiration process, that produces most of the energy in cells. This process includes two coupled parts: mitochondrial electron transport (MET) and oxidative phosphorylation. Although some of the older acaricides were known to inhibit respiration, the ...
Pest Management Plan - Lockyer Valley Regional Council
... pests within Lockyer Valley Regional Council Local Government Area and prioritises their control. Declared Pests under the Land Protection (Pest and Stock Route Management) Act 2002 are plants or animals that cause significant adverse economic, environmental and social impacts. They reduce industry ...
... pests within Lockyer Valley Regional Council Local Government Area and prioritises their control. Declared Pests under the Land Protection (Pest and Stock Route Management) Act 2002 are plants or animals that cause significant adverse economic, environmental and social impacts. They reduce industry ...
Alfalfa Trap Cropping Increases Abundance Of Key Arachnids In An
... natural enemies to reduce exotic pest densities below levels that are deleterious to crops. The key to success for classical biological control is efficient dispersion and reproductive capabilities of predators (Van Lenteren et al. 2012). Perennial crops (e.g., fruit plantations and forests) have be ...
... natural enemies to reduce exotic pest densities below levels that are deleterious to crops. The key to success for classical biological control is efficient dispersion and reproductive capabilities of predators (Van Lenteren et al. 2012). Perennial crops (e.g., fruit plantations and forests) have be ...
08
... Number of plants with >25 seeds in storage: According to the plant stabilization plans, for taxa where seed storage is the preferred genetic storage method, up to 50 seeds should be collected from each plant for storage. Because it is in the early stages of implementation, NRS felt it was important ...
... Number of plants with >25 seeds in storage: According to the plant stabilization plans, for taxa where seed storage is the preferred genetic storage method, up to 50 seeds should be collected from each plant for storage. Because it is in the early stages of implementation, NRS felt it was important ...
DOCX version 3874 KB - Office of the Gene Technology Regulator
... Canola is grown primarily as an oilseed, from which oil is extracted. The oil is used for cooking and in food products such as margarine. Canola seeds yield 35-45% oil. A by-product of the oil extraction process is the generation of a high-protein meal that may be used as animal feed. Worldwide, can ...
... Canola is grown primarily as an oilseed, from which oil is extracted. The oil is used for cooking and in food products such as margarine. Canola seeds yield 35-45% oil. A by-product of the oil extraction process is the generation of a high-protein meal that may be used as animal feed. Worldwide, can ...
Ready or Not, Garlic Mustard Is Moving In: Alliaria
... soils that were previously occupied by garlic mustard. To test for the specific effects of root exudates, they mixed experimental soil samples with activated carbon, a substrate that binds organic compounds in soil and thereby decreases their activity. They found that more seeds germinated in soils ...
... soils that were previously occupied by garlic mustard. To test for the specific effects of root exudates, they mixed experimental soil samples with activated carbon, a substrate that binds organic compounds in soil and thereby decreases their activity. They found that more seeds germinated in soils ...
CH03
... plants related to the MIP. NRS have reached capacity in the current space. The nursery space was planned for the Pahole Mid-Elevation Nursery owned by the State of Hawai‘i. The Army and the State have been working to overcome a number of planning, permitting, budgetary, staffing changes and logistic ...
... plants related to the MIP. NRS have reached capacity in the current space. The nursery space was planned for the Pahole Mid-Elevation Nursery owned by the State of Hawai‘i. The Army and the State have been working to overcome a number of planning, permitting, budgetary, staffing changes and logistic ...
The Biology of Ananas comosus (Pineapple)
... assessments of genetically modified (GM) A. comosus that may be released into the Australian environment. In this document, pineapple is used to refer to A. comosus and its cultivars, and to hybrids of A. comosus with other varieties. A. comosus is a tropical, herbaceous, perennial monocot, approxim ...
... assessments of genetically modified (GM) A. comosus that may be released into the Australian environment. In this document, pineapple is used to refer to A. comosus and its cultivars, and to hybrids of A. comosus with other varieties. A. comosus is a tropical, herbaceous, perennial monocot, approxim ...
stages and spatial scales of recruitment limitation in - Sortie-ND
... and Pickett 1990, Alvarez-Buylla and Garcı́a-Barrios 1991, Houle 1992a). Unfortunately, appreciation that recruitment limitation can occur does not remove the obstacle that caused many to ignore it in the first place: lack of characterization methods. Most efforts to quantify seed production and dis ...
... and Pickett 1990, Alvarez-Buylla and Garcı́a-Barrios 1991, Houle 1992a). Unfortunately, appreciation that recruitment limitation can occur does not remove the obstacle that caused many to ignore it in the first place: lack of characterization methods. Most efforts to quantify seed production and dis ...
Soil health in agricultural systems
... example via the provision of surface charges, expressed as the cation exchange capacity, or influencing hydrological properties such as wettability. However, while the chemistry (and physics) of the soil system provides the context, and indeed sets the limits, in which the biotic assemblages of soil ...
... example via the provision of surface charges, expressed as the cation exchange capacity, or influencing hydrological properties such as wettability. However, while the chemistry (and physics) of the soil system provides the context, and indeed sets the limits, in which the biotic assemblages of soil ...
Intermountain Alfalfa Management - Siskiyou County Cooperative
... Climate has a profound effect on alfalfa production. Because of the climate in the Intermountain Region, dormant varieties of alfalfa (those with a fall dormancy rating from 2 to 4) prevail there. Growers can obtain two to four alfalfa cuttings between May and September (three is the most common num ...
... Climate has a profound effect on alfalfa production. Because of the climate in the Intermountain Region, dormant varieties of alfalfa (those with a fall dormancy rating from 2 to 4) prevail there. Growers can obtain two to four alfalfa cuttings between May and September (three is the most common num ...
Landscape effects on insect pests of Dracaena marginata
... for Costa Rica (CR) and a significant part of their agricultural landscape. Within the ornamental plants, Dracaena marginata Lam. (Rusaceae) provides an opportunity to study the population dynamics of three families of herbivorous arthropods which differ importantly in terms of their biology: Cicade ...
... for Costa Rica (CR) and a significant part of their agricultural landscape. Within the ornamental plants, Dracaena marginata Lam. (Rusaceae) provides an opportunity to study the population dynamics of three families of herbivorous arthropods which differ importantly in terms of their biology: Cicade ...
2. revegetation
... the clearing of vegetated areas and soil disturbance. Revegetation requires the prior establishment of soil conditions suitable for plant growth through effective management of topsoil and the control of weeds and other site factors. All plants require water to establish and grow. For most locations ...
... the clearing of vegetated areas and soil disturbance. Revegetation requires the prior establishment of soil conditions suitable for plant growth through effective management of topsoil and the control of weeds and other site factors. All plants require water to establish and grow. For most locations ...