Winners always win: growth of a wide range of plant species from
... rate, g g 1 day 1) of plants depends on two aspects: leafiness and physiology. This is encapsulated in the equation RGR = LAR*ULR (Evans 1972), in which RGR is dependent on LAR (leaf area ratio, m2 leaf per g plant) and ULR (unit leaf rate, g plant grown per m2 leaf per day). Differences in carbon c ...
... rate, g g 1 day 1) of plants depends on two aspects: leafiness and physiology. This is encapsulated in the equation RGR = LAR*ULR (Evans 1972), in which RGR is dependent on LAR (leaf area ratio, m2 leaf per g plant) and ULR (unit leaf rate, g plant grown per m2 leaf per day). Differences in carbon c ...
The Ecology, Impacts, and Control of Crassula helmsii Clare E. Dean
... community in a Phragmites australis dominated fen habitat? Survey data were analysed to determine whether C. helmsii was negatively correlated with variables of the plant community, a pattern indicating that C. helmsii could increase in abundance by displacing native plants. The variables ‘total com ...
... community in a Phragmites australis dominated fen habitat? Survey data were analysed to determine whether C. helmsii was negatively correlated with variables of the plant community, a pattern indicating that C. helmsii could increase in abundance by displacing native plants. The variables ‘total com ...
Chemical Control of Spiders and Scorpions in Urban Areas
... intermolt intervals depends on nutritional conditions and the number of molts on the ultimate body size. Small spiders only need a few molts (about five) whereas large spiders pass through about ten molts before reaching the adult stage. Small males achieve maturity with one or two fewer molts than ...
... intermolt intervals depends on nutritional conditions and the number of molts on the ultimate body size. Small spiders only need a few molts (about five) whereas large spiders pass through about ten molts before reaching the adult stage. Small males achieve maturity with one or two fewer molts than ...
Chemical Control of Spiders and Scorpions in Urban Areas
... intermolt intervals depends on nutritional conditions and the number of molts on the ultimate body size. Small spiders only need a few molts (about five) whereas large spiders pass through about ten molts before reaching the adult stage. Small males achieve maturity with one or two fewer molts than ...
... intermolt intervals depends on nutritional conditions and the number of molts on the ultimate body size. Small spiders only need a few molts (about five) whereas large spiders pass through about ten molts before reaching the adult stage. Small males achieve maturity with one or two fewer molts than ...
Proceedings of the Sonoma-Marin Coastal Prairie Workshop
... Among factors that must be reviewed in considering the coastal prairie are grazing history, fire history and soil profile, as well as the diversity of many associated scrub and forest communities. “Postage stamp prairies” still exist in our region, islanded by development, but with their original cr ...
... Among factors that must be reviewed in considering the coastal prairie are grazing history, fire history and soil profile, as well as the diversity of many associated scrub and forest communities. “Postage stamp prairies” still exist in our region, islanded by development, but with their original cr ...
The role of community and population ecology in applying
... in the non-inoculated crop. Most AMF field trials have been conducted in temperate agroecosystems where nutrient bioavailability is high compared with most tropical soils, thus reducing the possibility of an AMF effect. In contrast, most tropical soils have low bioavailable phosphate content and hig ...
... in the non-inoculated crop. Most AMF field trials have been conducted in temperate agroecosystems where nutrient bioavailability is high compared with most tropical soils, thus reducing the possibility of an AMF effect. In contrast, most tropical soils have low bioavailable phosphate content and hig ...
Identifying potential environmental impacts of large - TSEC
... between compartments within a ecosystem. Understand the rates of these processes is first step in managing ecosystems for maximum benefit for both biodiversity and yield. ...
... between compartments within a ecosystem. Understand the rates of these processes is first step in managing ecosystems for maximum benefit for both biodiversity and yield. ...
Legume presence increases photosynthesis and N concentrations
... Krner et al. 1997; Reich et al. 2001a, 2001b). Species differences in the ability to compete for potentially limiting resources such as N can have large effects on their responsiveness to elevated CO2 (Poorter 1993); therefore, legumes utilizing atmospheric N2 may be at a competitive advantage unde ...
... Krner et al. 1997; Reich et al. 2001a, 2001b). Species differences in the ability to compete for potentially limiting resources such as N can have large effects on their responsiveness to elevated CO2 (Poorter 1993); therefore, legumes utilizing atmospheric N2 may be at a competitive advantage unde ...
... 1.1 Invasive alien plants A great number of plant species have the ability to grow in conditions that are similar but also quite different from those in their native habitats. Consequently, many plants are currently in places where they never existed before. The term invasive species refers to non-i ...
Pest Management Plan - Wellington City Council
... The impacts of weeds have until recently been largely underestimated. Weeds are now considered as big a threat as pest animals. Because weed species are often weeds in many countries, they contribute to a decrease in global biodiversity, reducing the variation between regions. Approximately 11 perce ...
... The impacts of weeds have until recently been largely underestimated. Weeds are now considered as big a threat as pest animals. Because weed species are often weeds in many countries, they contribute to a decrease in global biodiversity, reducing the variation between regions. Approximately 11 perce ...
Ecological Effects of Allelopathic Plants – a Review
... This report is based on a literature review on allelopathy from an ecological impact point of view carried out in 1999. The study was initiated because recently published research results have suggested that the allelopathic activity of agricultural crops can be improved by genetic engineering. The ...
... This report is based on a literature review on allelopathy from an ecological impact point of view carried out in 1999. The study was initiated because recently published research results have suggested that the allelopathic activity of agricultural crops can be improved by genetic engineering. The ...
3337 CBD Synthesis.indd - Millennium Ecosystem Assessment
... 33 sub-global assessments. (See Figure B.) Figure B. MA Sub-global Assessments Eighteen sub-global assessments were approved as components of the MA. These were not designed to provide a scientific sample of any feature of ecosystems or human well-being. Instead, the choice of assessment locations wa ...
... 33 sub-global assessments. (See Figure B.) Figure B. MA Sub-global Assessments Eighteen sub-global assessments were approved as components of the MA. These were not designed to provide a scientific sample of any feature of ecosystems or human well-being. Instead, the choice of assessment locations wa ...
Science advice from a risk assessment of five
... tunicate finds a suitable rock and cements itself in place. Once grown, some species develop a thick covering, called a tunic, to protect it from predators. Most tunicates are hermaphrodites with eggs kept inside their body until they hatch and sperm released into the water to fertilize other indivi ...
... tunicate finds a suitable rock and cements itself in place. Once grown, some species develop a thick covering, called a tunic, to protect it from predators. Most tunicates are hermaphrodites with eggs kept inside their body until they hatch and sperm released into the water to fertilize other indivi ...
Proceedings of the WWF-Australia Quoll Workshop
... poisonous cane toads (assumed but not proven) that are 1km away from the TransFly population, feral cats which have recently established in the savannas and increased habitat disturbance, particularly altered fire regimes and weeds (by inference of the impact of these on other quoll species). There ...
... poisonous cane toads (assumed but not proven) that are 1km away from the TransFly population, feral cats which have recently established in the savannas and increased habitat disturbance, particularly altered fire regimes and weeds (by inference of the impact of these on other quoll species). There ...
Biology and Impacts of Pacific Invasive Species 7. The domestic cat
... outdoors where they may hunt native animals; at the other, unsocialized feral cats have replaced native predators as apex predators or occupy a new niche on oceanic islands, where they have devastated native faunas. In the middle are stray cats that are still socialized around humans. Feral and stra ...
... outdoors where they may hunt native animals; at the other, unsocialized feral cats have replaced native predators as apex predators or occupy a new niche on oceanic islands, where they have devastated native faunas. In the middle are stray cats that are still socialized around humans. Feral and stra ...
Impact of Cattle Grazing on the Smith`s Blue Butterfly, Its Host Plant
... Such habitats along the coast are less degraded than inland ones, but are still in need of management activities to reduce the dominance of exotic plants and promote the success of natives. Grazing by domestic livestock, such as cattle, may be an effective tool for mitigating these invasions, but re ...
... Such habitats along the coast are less degraded than inland ones, but are still in need of management activities to reduce the dominance of exotic plants and promote the success of natives. Grazing by domestic livestock, such as cattle, may be an effective tool for mitigating these invasions, but re ...
How do transposable elements work - Zoology, UBC
... What exactly did Darwin do for the biological world? Why was Darwin’s agument for evolution so convincing that people changed their beliefs. How do seeds travel through the animal’s body without being damaged? How do DNA know that they need to mutate? How are genetic diseases passed on? What are dev ...
... What exactly did Darwin do for the biological world? Why was Darwin’s agument for evolution so convincing that people changed their beliefs. How do seeds travel through the animal’s body without being damaged? How do DNA know that they need to mutate? How are genetic diseases passed on? What are dev ...
The Action Plan for Threatened Australian Macropods
... species in the next few years are not funded now, it may subsequently become more difficult if not impossible to secure these species over the long term. For greatest efficiency in the allocation of resources to species conservation, those responsible for recovery need to make explicit decisions abo ...
... species in the next few years are not funded now, it may subsequently become more difficult if not impossible to secure these species over the long term. For greatest efficiency in the allocation of resources to species conservation, those responsible for recovery need to make explicit decisions abo ...
Predator–prey naïveté, antipredator behavior, and the ecology of
... 2000, Knapp 2005). Recent reviews suggest that the relative impacts of predators on different prey species is more affected by variations in prey behavior rather than by the predator’s diet selection (Sih and Christensen 2001). Prey that can hide or escape survive well, while those species that lack t ...
... 2000, Knapp 2005). Recent reviews suggest that the relative impacts of predators on different prey species is more affected by variations in prey behavior rather than by the predator’s diet selection (Sih and Christensen 2001). Prey that can hide or escape survive well, while those species that lack t ...
Ecosystem Services: From Biodiversity to Society, Part 1
... with an overview of the major trends in the field and the remaining challenges that need to be addressed since the publication of the MEA in 2005. Although ES had been studied before then, under a variety of different names and from somewhat different perspectives, it was with the MEA that the field ...
... with an overview of the major trends in the field and the remaining challenges that need to be addressed since the publication of the MEA in 2005. Although ES had been studied before then, under a variety of different names and from somewhat different perspectives, it was with the MEA that the field ...
Diagnostic Methods for Golden Apple Snail Pomacea canaliculata
... the genera Pila, which is native to Asia and Africa, and Pomacea, which is native to the New World. They are so called because the shells of many species in these two genera are often large and round and sometimes greenish in colour. The term 'golden apple snail' is applied primarily in south-east A ...
... the genera Pila, which is native to Asia and Africa, and Pomacea, which is native to the New World. They are so called because the shells of many species in these two genera are often large and round and sometimes greenish in colour. The term 'golden apple snail' is applied primarily in south-east A ...
Feral goat management
... Feral goat populations are capable of increasing by up to 50 per cent each year under favourable environmental conditions (Mahood, 1985; Maas and Choquenot, 1995; Parkes et al. 1996). They are a generalist herbivore (Coblentz, 1977) and can occupy a great variety of habitats. In the arid and semi-ar ...
... Feral goat populations are capable of increasing by up to 50 per cent each year under favourable environmental conditions (Mahood, 1985; Maas and Choquenot, 1995; Parkes et al. 1996). They are a generalist herbivore (Coblentz, 1977) and can occupy a great variety of habitats. In the arid and semi-ar ...
Acoustic profiling of the landscape
... environment. Ensifera are cryptic participants of nocturnal soundscapes, contributing to ambient acoustics through their diverse range of proclamation songs. Although not without inherent risks and constraints, the single most important function of signalling is sexual advertising and pair formation ...
... environment. Ensifera are cryptic participants of nocturnal soundscapes, contributing to ambient acoustics through their diverse range of proclamation songs. Although not without inherent risks and constraints, the single most important function of signalling is sexual advertising and pair formation ...
Ecology and ecosystem impacts of common buckthorn (Rhamnus
... related Frangula caroliniana (Walt.) Gray (synonym R. caroliniana) (Stewart and Graves 2004). The rapid growth potential of R. cathartica may be due to its photosynthetic capacity. R. cathartica had the highest percent nitrogen in its leaves throughout the growing season when compared to P. serotina ...
... related Frangula caroliniana (Walt.) Gray (synonym R. caroliniana) (Stewart and Graves 2004). The rapid growth potential of R. cathartica may be due to its photosynthetic capacity. R. cathartica had the highest percent nitrogen in its leaves throughout the growing season when compared to P. serotina ...
Introduced species
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.