![migration - Princeton University](http://s1.studyres.com/store/data/015163454_1-b10c7f25cfefa93933d8b23e67276ef8-300x300.png)
migration - Princeton University
... lifetime (e.g., salmon) or only part of a circuit before they die, such as insects in which successive generations continue the journey their predecessors began. Should we exclude such species from the ‘‘migratory’’ category despite other aspects of behavior, physiology, and life history held in com ...
... lifetime (e.g., salmon) or only part of a circuit before they die, such as insects in which successive generations continue the journey their predecessors began. Should we exclude such species from the ‘‘migratory’’ category despite other aspects of behavior, physiology, and life history held in com ...
- Wiley Online Library
... suggesting that interactions of plants and their environment (competitors, pollinators, different types of herbivores, their natural enemies, and various types of abiotic stressors) are important for defense trade-offs. We have previously documented a similar trade-off in B. stricta between GS alloc ...
... suggesting that interactions of plants and their environment (competitors, pollinators, different types of herbivores, their natural enemies, and various types of abiotic stressors) are important for defense trade-offs. We have previously documented a similar trade-off in B. stricta between GS alloc ...
Coevolution
... the evolutionary utility of sexual reproduction is largely to produce variable offspring. – If the organism is very well-adapted for the environment, this can be a disadvantage, because sex breaks up potentially useful combinations of alleles. – In changeable or uncertain environments, sexual reprod ...
... the evolutionary utility of sexual reproduction is largely to produce variable offspring. – If the organism is very well-adapted for the environment, this can be a disadvantage, because sex breaks up potentially useful combinations of alleles. – In changeable or uncertain environments, sexual reprod ...
Do subordinate species punch above their weight? Evidence from
... in order to provide a framework for future studies of biodiversity effects on ecosystem functioning. I synthesize the current state of knowledge about subordinate species and give a clear definition for these species, I provide evidence of their functional role in ecosystems, and I show how the impo ...
... in order to provide a framework for future studies of biodiversity effects on ecosystem functioning. I synthesize the current state of knowledge about subordinate species and give a clear definition for these species, I provide evidence of their functional role in ecosystems, and I show how the impo ...
Multitrophic Diversity Effects Of Network Degradation
... 2012; Naeem et al. 2012). A broad scientific consensus now holds that a greater intratrophic-level diversity of genes, species, and functional traits is more efficient at capturing resources, contributes to greater biomass production (Cardinale et al. 2011), nutrient cycling, and decomposition rates ...
... 2012; Naeem et al. 2012). A broad scientific consensus now holds that a greater intratrophic-level diversity of genes, species, and functional traits is more efficient at capturing resources, contributes to greater biomass production (Cardinale et al. 2011), nutrient cycling, and decomposition rates ...
Biotic factors are the other living things in an ecosystem that affect
... Biotic factors are the other living things in an ecosystem that affect the survival of an organism in that ecosystem. They include: competition for food and water competition for shelter availability of food - plants and animals number of predators co-operation to help find food ...
... Biotic factors are the other living things in an ecosystem that affect the survival of an organism in that ecosystem. They include: competition for food and water competition for shelter availability of food - plants and animals number of predators co-operation to help find food ...
a landscape simulation model for understanding animal
... in the habitat (e.g. , for two resources that occur equally in a habitat, each has a resource-proportion of 0.5). • A patch is the area composed of all adjacent cells sharing a habitat type where the local-scale processes take place. Individuals of a species in one patch (population) interact among ...
... in the habitat (e.g. , for two resources that occur equally in a habitat, each has a resource-proportion of 0.5). • A patch is the area composed of all adjacent cells sharing a habitat type where the local-scale processes take place. Individuals of a species in one patch (population) interact among ...
SNA Project Report Pages 69-82 Summary of Ecological Results
... Mustelids (ferrets, stoats and weasels) and rats, also cats The purpose of controlling these species is to provide some relief from predation for breeding birds, as well as insect and lizard populations over the spring/summer months. Stoats and ship rats, in particular, are key pests in forest ecosy ...
... Mustelids (ferrets, stoats and weasels) and rats, also cats The purpose of controlling these species is to provide some relief from predation for breeding birds, as well as insect and lizard populations over the spring/summer months. Stoats and ship rats, in particular, are key pests in forest ecosy ...
Fig. 3 - ePrints Soton - University of Southampton
... community responses to directional changes in evenness13–17,31, although the observed levels of nutrient concentrations in our experiments were not always coherent with bioturbation32. Such discrepancies are maximised at low levels of evenness where the most dominant species exert a disproportionate ...
... community responses to directional changes in evenness13–17,31, although the observed levels of nutrient concentrations in our experiments were not always coherent with bioturbation32. Such discrepancies are maximised at low levels of evenness where the most dominant species exert a disproportionate ...
Adaptive Radiation, Ecological Opportunity, and Evolutionary
... throughout their range (as opposed to local extinctions of some populations of a species); by contrast, introduced predators and pathogens are responsible for many extinctions of native species (Davis 2003; Sax et al. 2007). If extinction of single species is unlikely to result from interspecific co ...
... throughout their range (as opposed to local extinctions of some populations of a species); by contrast, introduced predators and pathogens are responsible for many extinctions of native species (Davis 2003; Sax et al. 2007). If extinction of single species is unlikely to result from interspecific co ...
Unit 2 Homework Sheet
... 7) Understand the different ways in which populations grow and how this is related to the reproductive characteristics of the organisms that make up the population. 8) Understand succession as a process of ecosystem change. 9) Analyze island biogeography as a model of ecosystem biodiversity 10) Appl ...
... 7) Understand the different ways in which populations grow and how this is related to the reproductive characteristics of the organisms that make up the population. 8) Understand succession as a process of ecosystem change. 9) Analyze island biogeography as a model of ecosystem biodiversity 10) Appl ...
3.3
... Activities pertaining to the removal of oak trees within County of Los Angeles jurisdiction would be subject to permitting ordinances codified by the County of Los Angeles and would be reviewed by the County Planning Director. Application of a conditional use permit would be required for any activit ...
... Activities pertaining to the removal of oak trees within County of Los Angeles jurisdiction would be subject to permitting ordinances codified by the County of Los Angeles and would be reviewed by the County Planning Director. Application of a conditional use permit would be required for any activit ...
Biological invasions: are they dependent on disturbance?
... One of the most frequently cited features of communities thought vulnerable to invasion is that they tend to be disturbed (Elton 1958; Moyle 1986; Orians 1986; Hobbs 1989; Mack 1989; Rejmánek 1989). Elton (1958) reported that invasions "most often come to cultivated land, or to land much modified by ...
... One of the most frequently cited features of communities thought vulnerable to invasion is that they tend to be disturbed (Elton 1958; Moyle 1986; Orians 1986; Hobbs 1989; Mack 1989; Rejmánek 1989). Elton (1958) reported that invasions "most often come to cultivated land, or to land much modified by ...
butterfly habitat - North American Butterfly Association
... the ants eat. Sometimes one or both of these types of relationships can affect where a butterfly species can and can't maintain populations. Rarely have all the resources a particular butterfly species requires been thoroughly documented. But it has often turned out that some critical resource or co ...
... the ants eat. Sometimes one or both of these types of relationships can affect where a butterfly species can and can't maintain populations. Rarely have all the resources a particular butterfly species requires been thoroughly documented. But it has often turned out that some critical resource or co ...
Species Redundancy and Ecosystem Reliability
... gestion that it be struck from the lexicon of ecology (Walker 1995). Walker introduced the concept for the purposes of assessing conservation priorities (Walker 1992, 1995), arguing that conservation efforts should focus first on species that are singular in their contribution to ecosystem functioni ...
... gestion that it be struck from the lexicon of ecology (Walker 1995). Walker introduced the concept for the purposes of assessing conservation priorities (Walker 1992, 1995), arguing that conservation efforts should focus first on species that are singular in their contribution to ecosystem functioni ...
442_2011_2138_MOESM1_ESM - Springer Static Content Server
... Bacteria can improve their habitat by increasing water permeability of the leaf cuticle. Differences in habitat quality are primarily responsible for the variation in population density of yeast-like fungi among leaves in nature. Habitat suitability for multiplication of bacteria can enhance dispers ...
... Bacteria can improve their habitat by increasing water permeability of the leaf cuticle. Differences in habitat quality are primarily responsible for the variation in population density of yeast-like fungi among leaves in nature. Habitat suitability for multiplication of bacteria can enhance dispers ...
The Aegean archipelago: a natural laboratory of
... and has been the stage for a very long interaction between human civilizations and local ecosystems. This work presents insights that have been gained from past and current relevant research in the area, highlighting also the importance of the Aegean archipelago as a useful model to address many maj ...
... and has been the stage for a very long interaction between human civilizations and local ecosystems. This work presents insights that have been gained from past and current relevant research in the area, highlighting also the importance of the Aegean archipelago as a useful model to address many maj ...
Biology Slide 1 of 39 End Show
... Components of an ecosystem can be changed by natural events, such as fires. When the disturbance is over, community interactions tend to restore the ecosystem to its original condition through secondary succession. ...
... Components of an ecosystem can be changed by natural events, such as fires. When the disturbance is over, community interactions tend to restore the ecosystem to its original condition through secondary succession. ...
1.2 - Biology Junction
... Components of an ecosystem can be changed by natural events, such as fires. When the disturbance is over, community interactions tend to restore the ecosystem to its original condition through secondary succession. ...
... Components of an ecosystem can be changed by natural events, such as fires. When the disturbance is over, community interactions tend to restore the ecosystem to its original condition through secondary succession. ...
Lichens - Corridor appalachien
... flying squirrels, and a host of invertebrates including mites, slugs and snails. Lichens are used as nesting material by flying squirrels and by almost fifty species of birds. The roles of lichens are numerous and important to ecosystem function. Lichens growing on rock ...
... flying squirrels, and a host of invertebrates including mites, slugs and snails. Lichens are used as nesting material by flying squirrels and by almost fifty species of birds. The roles of lichens are numerous and important to ecosystem function. Lichens growing on rock ...
What are Invasive Species?
... disturbances. Introduced diseases and parasites can attack and eliminate dominant native plant species. For example, the chestnut blight fungus from Asia all but wiped out the American Chestnut, thus changing the makeup of eastern forests. Intentionally and accidentally introduced herbivorous mammal ...
... disturbances. Introduced diseases and parasites can attack and eliminate dominant native plant species. For example, the chestnut blight fungus from Asia all but wiped out the American Chestnut, thus changing the makeup of eastern forests. Intentionally and accidentally introduced herbivorous mammal ...
Network of Conservation Areas (NCA) Report Dictionary
... In order to successfully protect populations or occurrences, it is necessary to delineate conservation areas. These potential conservation areas focus on capturing the ecological processes that are necessary to support the continued existence of a particular element of natural heritage significance. ...
... In order to successfully protect populations or occurrences, it is necessary to delineate conservation areas. These potential conservation areas focus on capturing the ecological processes that are necessary to support the continued existence of a particular element of natural heritage significance. ...
Biodiversity: Structure and Function
... reductions in population size which create a loss of genetic diversity. They will also suffer from weaker connectivity, with the probable consequence of impaired functionality. Very difficult and unavoidably controversial decisions will have to be made concerning the extent of biodiversity that shou ...
... reductions in population size which create a loss of genetic diversity. They will also suffer from weaker connectivity, with the probable consequence of impaired functionality. Very difficult and unavoidably controversial decisions will have to be made concerning the extent of biodiversity that shou ...
Ecological fitting
![](https://en.wikipedia.org/wiki/Special:FilePath/Colorado_potato_beetle.jpg?width=300)
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.