Importance of large colony formation in bloom
... growth of M. aeruginosa occurs mainly inside colonies, and when the growth of these cells begins to be suppressed as a result of self-shading, peripheral cells separate as smaller colonies. Since the growth rate of small colonies exceeds that of peripheral cells, this growth mechanism enables a popu ...
... growth of M. aeruginosa occurs mainly inside colonies, and when the growth of these cells begins to be suppressed as a result of self-shading, peripheral cells separate as smaller colonies. Since the growth rate of small colonies exceeds that of peripheral cells, this growth mechanism enables a popu ...
The Distribution of Life
... survive in their native habitat. The distribution of life on Earth however is ...
... survive in their native habitat. The distribution of life on Earth however is ...
Invasion, Competition, and Biodiversity Loss in Urban
... Birds foraging in urban habitats showed no differences in foraging behavior between food patches that were close to shelters (under bushes) and open patches (Shochat et al. 2004a). In the desert, however, birds depleted resources in areas close to the bush to a greater extent than in those in the o ...
... Birds foraging in urban habitats showed no differences in foraging behavior between food patches that were close to shelters (under bushes) and open patches (Shochat et al. 2004a). In the desert, however, birds depleted resources in areas close to the bush to a greater extent than in those in the o ...
VonHolle_Simberloff_2005 - UCF College of Sciences
... origin (native, nonnative). We performed multiple regressions of percentage survival of invaders by origin (native, nonnative) within each plot in the final census year as dependent upon the presence of other transplants (i.e., 23 treatment or not), duration of flooding that occurred in 2002 (measur ...
... origin (native, nonnative). We performed multiple regressions of percentage survival of invaders by origin (native, nonnative) within each plot in the final census year as dependent upon the presence of other transplants (i.e., 23 treatment or not), duration of flooding that occurred in 2002 (measur ...
The magnitude of fungal diversity: the 1.5 million species estimate
... with 60% discovered in tropical countries vs 40% in others, with India now generating most species (ea9133), followed by the USA (en 819), Australia (ea 813), China (en 795) and France (ea565) (Hawksworth & Kirk, unpubl.). The growth in the overall total due to the description of new species is modi ...
... with 60% discovered in tropical countries vs 40% in others, with India now generating most species (ea9133), followed by the USA (en 819), Australia (ea 813), China (en 795) and France (ea565) (Hawksworth & Kirk, unpubl.). The growth in the overall total due to the description of new species is modi ...
Parasitology Meets Ecology on Its Own Terms
... Our approach will be to discuss, first, words and concepts as human constructs (waxing philosophical if you will). Next, we revisit general terms and terms applied to populations of parasites, and we then discuss terms applicable to the community level. For the latter 2 topics, we provide, when rele ...
... Our approach will be to discuss, first, words and concepts as human constructs (waxing philosophical if you will). Next, we revisit general terms and terms applied to populations of parasites, and we then discuss terms applicable to the community level. For the latter 2 topics, we provide, when rele ...
To what extent do natural disturbances contribute to Andean plant
... gorges containing high rainforests and edaphically less humid ridges settled by low forest stands (Oesker et al., 2008). This spatial heterogeneity favours the development of endemic species swarms in the northern Andes. Among them Bromeliads and Orchids are strong agents of “evolutionary explosions ...
... gorges containing high rainforests and edaphically less humid ridges settled by low forest stands (Oesker et al., 2008). This spatial heterogeneity favours the development of endemic species swarms in the northern Andes. Among them Bromeliads and Orchids are strong agents of “evolutionary explosions ...
SPECIES DIVERSITY
... Another problem with diversity indices is that they lack a probabilistic basis. Because the indices are not sampled from a known distribution, it is impossible to assign a probability value to them (Ghent 1991). Consequently, there is no way to evaluate the statistical and biological differences bet ...
... Another problem with diversity indices is that they lack a probabilistic basis. Because the indices are not sampled from a known distribution, it is impossible to assign a probability value to them (Ghent 1991). Consequently, there is no way to evaluate the statistical and biological differences bet ...
Food Webs and Trophic Cascades
... Food chains are no longer in tropical than presumably less productive temperate regions Energy flow hypothesis not supported No strong support for other ...
... Food chains are no longer in tropical than presumably less productive temperate regions Energy flow hypothesis not supported No strong support for other ...
Marine Biodiversity : Research and Consevation
... copepods and ostracods. He founded the Marine Biology Section in Gent, which mainly focused on benthic research on meiofauna and later on macrofauna and fish. He worked for one year in Algeria for UNESCO where he coordinated the Postgraduate Oceanography Curriculum at the University of Algiers. In 1 ...
... copepods and ostracods. He founded the Marine Biology Section in Gent, which mainly focused on benthic research on meiofauna and later on macrofauna and fish. He worked for one year in Algeria for UNESCO where he coordinated the Postgraduate Oceanography Curriculum at the University of Algiers. In 1 ...
Seed arrival, ecological filters, and plant species richness: a meta
... competition for limiting resources (Elton 1958). Abiotic filters are hypothesized to impose strong constraints on local species membership. Classic examples include models of community diversity proposed by Grime (1979) and Huston (1999), in which the importance of species pools in structuring diver ...
... competition for limiting resources (Elton 1958). Abiotic filters are hypothesized to impose strong constraints on local species membership. Classic examples include models of community diversity proposed by Grime (1979) and Huston (1999), in which the importance of species pools in structuring diver ...
- The University of Liverpool Repository
... related, i.e., high attack rates and short handling times (greater overexploitation), low attack rates ...
... related, i.e., high attack rates and short handling times (greater overexploitation), low attack rates ...
NICHE DIVERSIFICATION OF CONIDAE IN MO`OREA, FRENCH
... snails are active at night and sedentary during the day; although they mostly rely on the “sit and wait” method of predation, Conus snails are able to constantly direct water through their body via a siphon. The siphon can often be seen protruding from the sand, and is an anatomical feature enabling ...
... snails are active at night and sedentary during the day; although they mostly rely on the “sit and wait” method of predation, Conus snails are able to constantly direct water through their body via a siphon. The siphon can often be seen protruding from the sand, and is an anatomical feature enabling ...
The importance of coarse woody debris for bryophyte vegetation of
... content, these are the first colonisation places of insects and fungi, and their decay is fast. The outer bark and the heartwood have a high lignin and extract material content and they resist decay relatively long. The time of decay depends considerably on log diameter, because in the case of larg ...
... content, these are the first colonisation places of insects and fungi, and their decay is fast. The outer bark and the heartwood have a high lignin and extract material content and they resist decay relatively long. The time of decay depends considerably on log diameter, because in the case of larg ...
Chapter 14: Conserving Biodiversity
... 14.1 The Sixth Extinction Habitat destruction not limited to rainforests Freshwater lakes and streams, grasslands, and temperate forests are also threatened If worldwide habitat destruction continues at present rate, as many as 25% of all world’s species could become extinct in 50 years ...
... 14.1 The Sixth Extinction Habitat destruction not limited to rainforests Freshwater lakes and streams, grasslands, and temperate forests are also threatened If worldwide habitat destruction continues at present rate, as many as 25% of all world’s species could become extinct in 50 years ...
The effects of UVB radiation on southern temperate forests
... School of Biological Sciences, Victoria University, Wellington, New Zealand ...
... School of Biological Sciences, Victoria University, Wellington, New Zealand ...
Mutualism (biology) - Basic Knowledge 101
... Volterra equations by adding a new term, βM/K, to represent a mutualistic relationship.[20] Wright also considered the concept of saturation, which means that with higher densities, there are decreasing benefits of further increases of the mutualist population. Without saturation, species’ densities ...
... Volterra equations by adding a new term, βM/K, to represent a mutualistic relationship.[20] Wright also considered the concept of saturation, which means that with higher densities, there are decreasing benefits of further increases of the mutualist population. Without saturation, species’ densities ...
The Need to Rationalize and Prioritize Threatening Processes Used
... system used to determine risk of extinction is rigorously and objectively applied, the list of threatening processes affecting a species is far more subjectively determined and has not had adequate review. I reviewed the threats listed in the IUCN Red List for randomly selected groups within the thr ...
... system used to determine risk of extinction is rigorously and objectively applied, the list of threatening processes affecting a species is far more subjectively determined and has not had adequate review. I reviewed the threats listed in the IUCN Red List for randomly selected groups within the thr ...
File - Oxford Megafauna conference
... There is considerable debate over the relative importance of anthropogenic and climatic drivers of the Late Pleistocene megafaunal extinctions. Key to the debate is the extent to which human arrival and climatic change coincided with the extinctions in different parts of the world. To account for th ...
... There is considerable debate over the relative importance of anthropogenic and climatic drivers of the Late Pleistocene megafaunal extinctions. Key to the debate is the extent to which human arrival and climatic change coincided with the extinctions in different parts of the world. To account for th ...
Biological Goals and Objectives
... measures based on the best scientific data available and are built on a set of core hypotheses about how to restore ecological processes and functions in the Sacramento-San Joaquin River Delta (Delta). Biological goals and objectives are the means by which BDCP will measure how well the Plan is work ...
... measures based on the best scientific data available and are built on a set of core hypotheses about how to restore ecological processes and functions in the Sacramento-San Joaquin River Delta (Delta). Biological goals and objectives are the means by which BDCP will measure how well the Plan is work ...
Butterfly Populations - North American Butterfly Association
... conditions. Butterflies usually have an inactive period called diapause in their annual cycle during cold winters or tropical dry seasons. But butterflies do not normally undergo prolonged dormancy lasting more than part of a year. This is unlike many plants that may be dormant for many years, exis ...
... conditions. Butterflies usually have an inactive period called diapause in their annual cycle during cold winters or tropical dry seasons. But butterflies do not normally undergo prolonged dormancy lasting more than part of a year. This is unlike many plants that may be dormant for many years, exis ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.