Sanders, BSP, DS Kjar, and TP Egan. Beetle
... through which plants were rooted. A random numbers table was used to select points along the transects from which Jimbay fruits were collected. Fruits were collected if they were brown and dry, but not yet dehisced. The relative coverage was calculated for the 3 different plant species growing along ...
... through which plants were rooted. A random numbers table was used to select points along the transects from which Jimbay fruits were collected. Fruits were collected if they were brown and dry, but not yet dehisced. The relative coverage was calculated for the 3 different plant species growing along ...
What happens when artificial genes move
... produce a compound called oxalate oxidase that breaks down oxalic acid. Pioneer Hi-Bred then funded a study to help determine the likelihood that the wheat gene would spread into the surrounding wild sunflower community, which was carried out by John Burke, assistant professor of biological sciences ...
... produce a compound called oxalate oxidase that breaks down oxalic acid. Pioneer Hi-Bred then funded a study to help determine the likelihood that the wheat gene would spread into the surrounding wild sunflower community, which was carried out by John Burke, assistant professor of biological sciences ...
Scatter-and clump-dispersal and seedling demography
... from which seedling and ultimately sapling recruitment normally occurs. Secondary dispersal by insects (e.g. dung beetles) or water may re-arrange local seed distributions, but still leave seeds in dense concentrations. Rodents sometimes mine seeds from dung piles (e.g. Janzen 1982b, 1986), but this ...
... from which seedling and ultimately sapling recruitment normally occurs. Secondary dispersal by insects (e.g. dung beetles) or water may re-arrange local seed distributions, but still leave seeds in dense concentrations. Rodents sometimes mine seeds from dung piles (e.g. Janzen 1982b, 1986), but this ...
International Congress on Mycorrhizae: mycorrhizal
... molecular signals are involved in the processes of nodulation, mycorrhization, root development and basal plant immunity. They could have a huge potential for sustainable agriculture because of their implication in enhancing plant nutrition, growth and defense against pathogens and pests. Dr. Silvio ...
... molecular signals are involved in the processes of nodulation, mycorrhization, root development and basal plant immunity. They could have a huge potential for sustainable agriculture because of their implication in enhancing plant nutrition, growth and defense against pathogens and pests. Dr. Silvio ...
2617 Sustainable Arable Farming For an Improved
... Skylark Plots (SP) & margins included in ELS SP cost-effective ELS option SP could help reverse skylark decline Scarification is an exciting and innovative ...
... Skylark Plots (SP) & margins included in ELS SP cost-effective ELS option SP could help reverse skylark decline Scarification is an exciting and innovative ...
Growing Food: A Guide to Food Production
... If plants are growing too close together (ie they are “too closely spaced”) they compete with each other for light, water, nutrients and air, and produce small plants of low quality which are more susceptible to attack by pests and diseases. If plants are growing too far apart, the yield per unit ar ...
... If plants are growing too close together (ie they are “too closely spaced”) they compete with each other for light, water, nutrients and air, and produce small plants of low quality which are more susceptible to attack by pests and diseases. If plants are growing too far apart, the yield per unit ar ...
17 Ecological Approaches to Crop Domestication
... Why is the evolutionary biology of these crops so poorly explored? We believe there are two main reasons. First, our poor knowledge of the biology and ecology of their closest wild relatives prevents an appreciation of what traits have evolved. Part of the problem is their very diversity. Our ideas ...
... Why is the evolutionary biology of these crops so poorly explored? We believe there are two main reasons. First, our poor knowledge of the biology and ecology of their closest wild relatives prevents an appreciation of what traits have evolved. Part of the problem is their very diversity. Our ideas ...
climate change change in mammal status increase in atmospheric
... Many weeds have been introduced and spread for pastoralism. Livestock grazing may also control or spread weeds. 13. Loss of Indigenous management --> changed status of dingoes PLAUSIBILITY: low-moderate. IMPACT: low-moderate. The abundance and ecology of dingoes may have been previously keyed to Ind ...
... Many weeds have been introduced and spread for pastoralism. Livestock grazing may also control or spread weeds. 13. Loss of Indigenous management --> changed status of dingoes PLAUSIBILITY: low-moderate. IMPACT: low-moderate. The abundance and ecology of dingoes may have been previously keyed to Ind ...
Oct/Nov 2007 - Barung Landcare
... This amount may at first seem excessive, but research indicates that this much is necessary to ensure the health of existing trees, halt problems such as soil deterioration, and maintain optimum long-term productivity. It is timely to draw your attention to the number of landslips in our local area ...
... This amount may at first seem excessive, but research indicates that this much is necessary to ensure the health of existing trees, halt problems such as soil deterioration, and maintain optimum long-term productivity. It is timely to draw your attention to the number of landslips in our local area ...
Lake Manager`s Handbook: Alien Invaders
... such as goldfish (Carrasius auratus), may simply have been introduced to new water bodies as liberated aquarium contents. Gambusia (Gambusia affinis) have been widely spread under the misconception that this species would control mosquitoes, with their common name of mosquitofish alluding to this. C ...
... such as goldfish (Carrasius auratus), may simply have been introduced to new water bodies as liberated aquarium contents. Gambusia (Gambusia affinis) have been widely spread under the misconception that this species would control mosquitoes, with their common name of mosquitofish alluding to this. C ...
Gasik, Novak Groshong. Does Ivy Growth in Riverview Natural Area
... same plastic bag. After collecting all thirty samples, we took all ten plastic bags into the greenhouse where we removed some soil, sifted it through a sieve to remove plant material and filled each pot to the same level to make sure each had roughly the same amount of dirt. We then added enough wa ...
... same plastic bag. After collecting all thirty samples, we took all ten plastic bags into the greenhouse where we removed some soil, sifted it through a sieve to remove plant material and filled each pot to the same level to make sure each had roughly the same amount of dirt. We then added enough wa ...
Fat but slim: Criteria of seed attractiveness for earthworms
... mainly in the upper organic soil layers and cause limited mixing of mineral and organic layers. Anecic species are known to be large earthworms living in deep vertical burrows up to 2 m depth, but predominantly feed on litter on the soil surface. They move vertically, forming burrows and aggregates ...
... mainly in the upper organic soil layers and cause limited mixing of mineral and organic layers. Anecic species are known to be large earthworms living in deep vertical burrows up to 2 m depth, but predominantly feed on litter on the soil surface. They move vertically, forming burrows and aggregates ...
- Wiley Online Library
... most likely, however, is difficult, partly because a plant’s fitness is determined by interactions with many different organisms, which might be differently affected by the transgene. Furthermore, selection processes usually require a relatively long time to become obvious, making them difficult to ...
... most likely, however, is difficult, partly because a plant’s fitness is determined by interactions with many different organisms, which might be differently affected by the transgene. Furthermore, selection processes usually require a relatively long time to become obvious, making them difficult to ...
Your Indigenous Garden
... It is difficult for plants and animals to adapt quickly to new conditions, resulting in a loss of biodiversity including, native species and communities. Bushfires Fire has long been part of the Australian landscape and indeed many plants are dependent on fire for seed germination. However, climate ...
... It is difficult for plants and animals to adapt quickly to new conditions, resulting in a loss of biodiversity including, native species and communities. Bushfires Fire has long been part of the Australian landscape and indeed many plants are dependent on fire for seed germination. However, climate ...
to see them, pdf - 3.0 Mb - European Weed Research Society
... In conclusion, the problem of weed biotype resistance to the currently used herbicides is a major issue as resistant weeds exhibit resistance to multiple herbicides and alternative herbicides that provide effective control are not available in rice. Some of the accessions were strongly resistant to ...
... In conclusion, the problem of weed biotype resistance to the currently used herbicides is a major issue as resistant weeds exhibit resistance to multiple herbicides and alternative herbicides that provide effective control are not available in rice. Some of the accessions were strongly resistant to ...
The Weed Impact to Native Species
... Norl.), in New South Wales established a process or assessment tool for identifying the native species potentially at risk from plant invasions. The Weed Impact to Native Species (WINS) assessment tool involves four stages, being: 1) a review of the literature, 2) collation and assessment of the kno ...
... Norl.), in New South Wales established a process or assessment tool for identifying the native species potentially at risk from plant invasions. The Weed Impact to Native Species (WINS) assessment tool involves four stages, being: 1) a review of the literature, 2) collation and assessment of the kno ...
Soil fauna in rainfed paddy field ecoystems: their role in organic
... harvest, before a two-month unflooded fallow period, can improve N and P nutrition of the subsequent rice crop. The application of legume mulch appears to increase the Oligochaeta populations, which are likely to participate in decomposition of legume residues in paddy soils (Yokota and Kaneko 2002) ...
... harvest, before a two-month unflooded fallow period, can improve N and P nutrition of the subsequent rice crop. The application of legume mulch appears to increase the Oligochaeta populations, which are likely to participate in decomposition of legume residues in paddy soils (Yokota and Kaneko 2002) ...
only means for most plants to colonize new habitats or escape
... effects for the remaining frugivores and granivores and the plant community. These effects can ultimately translate into rapid evolutionary shifts in seed and fruit traits, as shown for palms in fragmented landscapes and for herbaceous species in field experiments. Important themes in several talks ...
... effects for the remaining frugivores and granivores and the plant community. These effects can ultimately translate into rapid evolutionary shifts in seed and fruit traits, as shown for palms in fragmented landscapes and for herbaceous species in field experiments. Important themes in several talks ...
Animals as Seed Dispersers
... in one study (Culver and Beattie, 1978). Seeds are stored in ant nests or the elaiosome is cut off and typically fed to larvae. The seed is discarded in a refuse pile near the nest, which is nutrient-enriched by ant faeces and the carcasses of prey taken by the ants. Five hypotheses predicting the e ...
... in one study (Culver and Beattie, 1978). Seeds are stored in ant nests or the elaiosome is cut off and typically fed to larvae. The seed is discarded in a refuse pile near the nest, which is nutrient-enriched by ant faeces and the carcasses of prey taken by the ants. Five hypotheses predicting the e ...
Josep Rost, Pere Pons, Josep M. Bas
... undamaged lignotuber, epicormic tissues, rhizomes, roots, etc. Seeders have dry fruits with small seeds which germinate from the seed bank after heat stimulus caused by fire (Verdú 2000, Keeley & Fotheringham 2000). Both regeneration strategies allow most Mediterranean plant communities to regenerat ...
... undamaged lignotuber, epicormic tissues, rhizomes, roots, etc. Seeders have dry fruits with small seeds which germinate from the seed bank after heat stimulus caused by fire (Verdú 2000, Keeley & Fotheringham 2000). Both regeneration strategies allow most Mediterranean plant communities to regenerat ...
can unwanted suburban tortoises rescue native hawaiian plants?
... For two decades, scientists have excavated the rich fossil site in the cave’s central sinkhole, recovering literally millions of fossils and thousands of human artifacts. This has allowed them to trace the environmental history of the last 10,000 years on the island. In the book Back to the Future i ...
... For two decades, scientists have excavated the rich fossil site in the cave’s central sinkhole, recovering literally millions of fossils and thousands of human artifacts. This has allowed them to trace the environmental history of the last 10,000 years on the island. In the book Back to the Future i ...
Apparent competition with an invasive plant hastens the extinction of
... left) pass into SB1 the next year, and likewise for SB1 to the seedling stage; in other words, the probability that they pass into the next stage is 1. All the other arrows have symbols because they vary from year to year, and those values are presented in Appendix A. (The illustration is by P. Hanl ...
... left) pass into SB1 the next year, and likewise for SB1 to the seedling stage; in other words, the probability that they pass into the next stage is 1. All the other arrows have symbols because they vary from year to year, and those values are presented in Appendix A. (The illustration is by P. Hanl ...
Apparent competition with an invasive plant hastens the extinction of
... left) pass into SB1 the next year, and likewise for SB1 to the seedling stage; in other words, the probability that they pass into the next stage is 1. All the other arrows have symbols because they vary from year to year, and those values are presented in Appendix A. (The illustration is by P. Hanl ...
... left) pass into SB1 the next year, and likewise for SB1 to the seedling stage; in other words, the probability that they pass into the next stage is 1. All the other arrows have symbols because they vary from year to year, and those values are presented in Appendix A. (The illustration is by P. Hanl ...
Timing and success of reproductive stages in the seagrass Zostera
... viability (Conacher et al., 1994; Orth et al., 2000). Beside these factors, seed loss may be caused by physical damages, exports to unsuitable areas, burial and predation (Keedy and Patriquin, 1978; Harrison, 1993; Fishman and Orth, 1996; Peterken and Conacher, 1997). Under laboratory conditions, 70 ...
... viability (Conacher et al., 1994; Orth et al., 2000). Beside these factors, seed loss may be caused by physical damages, exports to unsuitable areas, burial and predation (Keedy and Patriquin, 1978; Harrison, 1993; Fishman and Orth, 1996; Peterken and Conacher, 1997). Under laboratory conditions, 70 ...
Mammal and insect predation of chemically and structurally
... major factor limiting the colonization, establishment and growth of plant populations (Forget et al. 1999, Howe & Smallwood 1982, Janzen 1971a, b; Schupp 1988). Seedeating animals may attack seeds during fruit development while seeds and fruits are still attached to parent plants; this is termed pre ...
... major factor limiting the colonization, establishment and growth of plant populations (Forget et al. 1999, Howe & Smallwood 1982, Janzen 1971a, b; Schupp 1988). Seedeating animals may attack seeds during fruit development while seeds and fruits are still attached to parent plants; this is termed pre ...