The coexistence of species - Revista Chilena de Historia Natural
... This paper is a critical literature review on the topic ofthe coexistence of similar species within ecological communities. A conceptual framework is provided for dividing coexistence studies and concepts into three distinct time scales. The first six sections deal primarily with ecological-scale, o ...
... This paper is a critical literature review on the topic ofthe coexistence of similar species within ecological communities. A conceptual framework is provided for dividing coexistence studies and concepts into three distinct time scales. The first six sections deal primarily with ecological-scale, o ...
Marine seaweed invasions Josefin Sagerman Impacts and biotic resistance in native ecosystems
... planet (Mann 1973). They have a key function in nutrient cycling within temperate costal zones and as a habitat, seaweeds harbor a rich diversity of fauna and serve as a nursery for commercially important fish (Rangeley and Kramer 1995; Costanza et al. 1998). Human activities are intense in coastal ...
... planet (Mann 1973). They have a key function in nutrient cycling within temperate costal zones and as a habitat, seaweeds harbor a rich diversity of fauna and serve as a nursery for commercially important fish (Rangeley and Kramer 1995; Costanza et al. 1998). Human activities are intense in coastal ...
Mountain Cultures, Keystone Species: Exploring the Role of Cultural
... Measuring change in local attitudes and actions toward cultural or biodiversity cannot be measured within a short time frame. Nonetheless a framework for ongoing participatory monitoring and evaluation has been developed, in which locally derived indicators, such as the nature and number of locally- ...
... Measuring change in local attitudes and actions toward cultural or biodiversity cannot be measured within a short time frame. Nonetheless a framework for ongoing participatory monitoring and evaluation has been developed, in which locally derived indicators, such as the nature and number of locally- ...
Phylogenetic and functional characteristics of household yard floras
... with these predictions. We also identified characteristics of the spontaneous yard flora by comparing its phylogenetic diversity and functional composition with the ‘‘natural-areas’’ species pool represented by the flora of nearby Cedar Creek Ecosystem Science Reserve. Along the urbanization gradien ...
... with these predictions. We also identified characteristics of the spontaneous yard flora by comparing its phylogenetic diversity and functional composition with the ‘‘natural-areas’’ species pool represented by the flora of nearby Cedar Creek Ecosystem Science Reserve. Along the urbanization gradien ...
NICHE DIVERSIFICATION OF CONIDAE IN MO`OREA, FRENCH
... preferences. The microhabitats were categorized into substrate types, and then a laboratory manipulation was conducted to see if cone snails have substrate preferences in the absence of biotic influences. Results showed that topographically complex environments yield a high abundance, species richne ...
... preferences. The microhabitats were categorized into substrate types, and then a laboratory manipulation was conducted to see if cone snails have substrate preferences in the absence of biotic influences. Results showed that topographically complex environments yield a high abundance, species richne ...
YSISPUBS - Yakima/Klickitat Fisheries Project
... Hindman, J. N., G. A. McMichael, J. P. Olson, and S. A. Leider. 1991. Yakima River Species Interactions Studies. Annual Report FY 1990 submitted to Bonneville Power Administration, Portland, Oregon. DOE/BP-01483-1. 75 pp. McMichael, G. A., J. P. Olson, E. L. Bartrand, M. Fischer, J. N. Hindman, and ...
... Hindman, J. N., G. A. McMichael, J. P. Olson, and S. A. Leider. 1991. Yakima River Species Interactions Studies. Annual Report FY 1990 submitted to Bonneville Power Administration, Portland, Oregon. DOE/BP-01483-1. 75 pp. McMichael, G. A., J. P. Olson, E. L. Bartrand, M. Fischer, J. N. Hindman, and ...
Divergence of above- and belowground C and N
... for S. grandis in NECT. Unfortunately, it was not logistically possible to measure soil nutrient availabilities simultaneously and repeatedly at so many points along the two gradients, given that nutrient availability is notoriously variable in time. However, we expect nutrient availabilities to hav ...
... for S. grandis in NECT. Unfortunately, it was not logistically possible to measure soil nutrient availabilities simultaneously and repeatedly at so many points along the two gradients, given that nutrient availability is notoriously variable in time. However, we expect nutrient availabilities to hav ...
Towards a food web perspective on biodiversity and ecosystem
... 2005), there is a more fundamental reason for the recent prominence of this topic. BEF is one of the few research topics in ecology that examines how biological variation per se acts as an independent variable to regulate key community and ecosystem-level processes (Naeem 2002b). Understanding the e ...
... 2005), there is a more fundamental reason for the recent prominence of this topic. BEF is one of the few research topics in ecology that examines how biological variation per se acts as an independent variable to regulate key community and ecosystem-level processes (Naeem 2002b). Understanding the e ...
- New Zealand Ecological Society
... plantings of pohutukawa on the east coast of the island. Seventy-thousand trees were closely planted to provide shade and shelter for future canopy species. Survival was better than expected (60–80%) resulting in a pohutukawa-dominated forest with almost no regeneration of other species. This was po ...
... plantings of pohutukawa on the east coast of the island. Seventy-thousand trees were closely planted to provide shade and shelter for future canopy species. Survival was better than expected (60–80%) resulting in a pohutukawa-dominated forest with almost no regeneration of other species. This was po ...
The planning pattern research on mountain rural settlements in
... and restructure. More a reflection on the technical features of the building and external symbol, and even cultural identity is reflected in the hell on. Including traditional local customs, lifestyle, language, religion, etc, wh ich are mountainous ecology rural villages an important manifestation ...
... and restructure. More a reflection on the technical features of the building and external symbol, and even cultural identity is reflected in the hell on. Including traditional local customs, lifestyle, language, religion, etc, wh ich are mountainous ecology rural villages an important manifestation ...
... and Sloan, 2004; Pedros-Alio, 2006; Torsvik et al., 1998; Torsvik et al., 2002; Ward, 2002). These estimates are staggering and range up to 109 species. Considering this large species richness, it is even more fascinating that an extensive genetic and functional versatility can exist within a single ...
Population, community and ecosystem effects of
... cascade in which the abundance of previously introduced rabbits drastically increased after cat removal. These increases in rabbit numbers resulted in wholesale shifts to plant communities at the local and landscape level (Bergstrom et al. 2009). While there is variation in the ecological and evolut ...
... cascade in which the abundance of previously introduced rabbits drastically increased after cat removal. These increases in rabbit numbers resulted in wholesale shifts to plant communities at the local and landscape level (Bergstrom et al. 2009). While there is variation in the ecological and evolut ...
Population, community and ecosystem effects of exotic herbivores: A
... cascade in which the abundance of previously introduced rabbits drastically increased after cat removal. These increases in rabbit numbers resulted in wholesale shifts to plant communities at the local and landscape level (Bergstrom et al. 2009). While there is variation in the ecological and evolut ...
... cascade in which the abundance of previously introduced rabbits drastically increased after cat removal. These increases in rabbit numbers resulted in wholesale shifts to plant communities at the local and landscape level (Bergstrom et al. 2009). While there is variation in the ecological and evolut ...
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 ...
Phenotypic and genetic differentiation between native and
... Lonsdale 1999; Sakai et al. 2001). While most of the previous research has been purely ecological, invasion biologists have recently begun to focus on another potential explanation for the success of invaders: rapid evolutionary change. Evolution can be rapid and therefore relevant to ecological stu ...
... Lonsdale 1999; Sakai et al. 2001). While most of the previous research has been purely ecological, invasion biologists have recently begun to focus on another potential explanation for the success of invaders: rapid evolutionary change. Evolution can be rapid and therefore relevant to ecological stu ...
Estuarine Macrophytes at Bakkhali, Cox`s Bazar, Bangladesh with
... they may have been imported. Macrophytes in the inter-tidal area serve as a nursery ground, nutrient source and primary food source of fish, invertebrates and coastal birds. The coastal macrophytes play a vital role in the life history ...
... they may have been imported. Macrophytes in the inter-tidal area serve as a nursery ground, nutrient source and primary food source of fish, invertebrates and coastal birds. The coastal macrophytes play a vital role in the life history ...
Evolutionary History Uniting History and Biology to Understand Life
... insect species have become pests as a by-product of spraying that entomologists have a term for them: secondary pests.) Spraying did not create new species, but it helped populations of several species become plentiful enough to cause economic problems. This explained why the number of pest species ...
... insect species have become pests as a by-product of spraying that entomologists have a term for them: secondary pests.) Spraying did not create new species, but it helped populations of several species become plentiful enough to cause economic problems. This explained why the number of pest species ...
Species pool size and invasibility of island communities: a null
... A Ôlocal communityÕ with a constant total number of individuals (community size, N) was constructed by random drawing from species pools with a simple dynamic simulation model of community invasion. The pool is a set of individuals whose species identity is known; these species may be either native ...
... A Ôlocal communityÕ with a constant total number of individuals (community size, N) was constructed by random drawing from species pools with a simple dynamic simulation model of community invasion. The pool is a set of individuals whose species identity is known; these species may be either native ...
Common Ancestry Is a Poor Predictor of Competitive Traits in
... exponential growth dynamics for the entire time series. In many cases species displayed density-dependent growth by the end of the two weeks. In order to obtain the best possible estimate of the exponential portion of growth, we eliminated time points from the end of the time series until the varian ...
... exponential growth dynamics for the entire time series. In many cases species displayed density-dependent growth by the end of the two weeks. In order to obtain the best possible estimate of the exponential portion of growth, we eliminated time points from the end of the time series until the varian ...
(Araneae, Gnaphosidae) along the altitudinal gradient of
... interest for many earlier and contemporary biogeographers. During the nineteenth century latitudinal and elevational gradients in diversity were considered direct responses to climatic changes and energy interactions in the environment (see historical review in Lomolino, 2001). These were later inte ...
... interest for many earlier and contemporary biogeographers. During the nineteenth century latitudinal and elevational gradients in diversity were considered direct responses to climatic changes and energy interactions in the environment (see historical review in Lomolino, 2001). These were later inte ...
arXiv:q-bio/0607016v1 [q
... remarkable; this is referred to as ‘the paradox of the plankton’ (Hutchinson, 1961). To explain this paradox, several attempts have been made. Hutchinson (1961) proposed that because of weather-driven fluctuations, plankton communities are not in equilibrium. Authors such as Richerson et al. (1970) ...
... remarkable; this is referred to as ‘the paradox of the plankton’ (Hutchinson, 1961). To explain this paradox, several attempts have been made. Hutchinson (1961) proposed that because of weather-driven fluctuations, plankton communities are not in equilibrium. Authors such as Richerson et al. (1970) ...
From Population to the Biosphere
... If a population is given unlimited amounts of food, moisture, and oxygen, and other environmental factors, it will show a type of growth called exponential growth. Exponential growth means that as a population grows larger, the growth rate increases. This is shown as the J-shaped curve in Figure 23. ...
... If a population is given unlimited amounts of food, moisture, and oxygen, and other environmental factors, it will show a type of growth called exponential growth. Exponential growth means that as a population grows larger, the growth rate increases. This is shown as the J-shaped curve in Figure 23. ...
DISPERSAL LIMITATION, INVASION RESISTANCE, AND THE
... another site and maintain positive population growth in the local environment. I experimentally tested the role of dispersal limitation in structuring the zooplankton communities of fishless ponds in southwestern Michigan. An average of 12.9 new species of rotifers and crustaceans from the region we ...
... another site and maintain positive population growth in the local environment. I experimentally tested the role of dispersal limitation in structuring the zooplankton communities of fishless ponds in southwestern Michigan. An average of 12.9 new species of rotifers and crustaceans from the region we ...
13 Vocabulary Practice
... enough food and water, shelter, energy, and waste to support each person on Earth. 7. The trend of increasing global temperatures. 8. Resources that are used faster than they can form. ...
... enough food and water, shelter, energy, and waste to support each person on Earth. 7. The trend of increasing global temperatures. 8. Resources that are used faster than they can form. ...
Ecological fitting
Ecological fitting is ""the process whereby organisms colonize and persist in novel environments, use novel resources or form novel associations with other species as a result of the suites of traits that they carry at the time they encounter the novel condition.” It can be understood as a situation in which a species' interactions with its biotic and abiotic environment seem to indicate a history of coevolution, when in actuality the relevant traits evolved in response to a different set of biotic and abiotic conditions. The simplest form of ecological fitting is resource tracking, in which an organism continues to exploit the same resources, but in a new host or environment. In this framework, the organism occupies a multidimensional operative environment defined by the conditions in which it can persist, similar to the idea of the Hutchinsonian niche. In this case, a species can colonize new environments (e.g. an area with the same temperature and water regime) and/or form new species interactions (e.g. a parasite infecting a new host) which can lead to the misinterpretation of the relationship as coevolution, although the organism has not evolved and is continuing to exploit the same resources it always has. The more strict definition of ecological fitting requires that a species encounter an environment or host outside of its original operative environment and obtain realized fitness based on traits developed in previous environments that are now co-opted for a new purpose. This strict form of ecological fitting can also be expressed either as colonization of new habitat or the formation of new species interactions.