Ecology
... quantitative survey to determine its frequency. 169. As a result of pollution, a species of plant disappears from an ecosystem. Suggest two possible effects that the disappearance of this plant might have on the other plants and animals living in the area. 170. Where in a food chain are primary prod ...
... quantitative survey to determine its frequency. 169. As a result of pollution, a species of plant disappears from an ecosystem. Suggest two possible effects that the disappearance of this plant might have on the other plants and animals living in the area. 170. Where in a food chain are primary prod ...
10/19/06 version
... subsites 50 m apart. Using those subsites as the baseline, the percentage of sites with vegetation that ...
... subsites 50 m apart. Using those subsites as the baseline, the percentage of sites with vegetation that ...
printer-friendly version of benchmark
... Today we can think of a niche has how an organism makes its living as described in this quote by Eugene Odum. The ecological niche of an organism depends not only on where it lives but also on what it does. By analogy, it may be said that the habitat is the organism's "address", and the niche is its ...
... Today we can think of a niche has how an organism makes its living as described in this quote by Eugene Odum. The ecological niche of an organism depends not only on where it lives but also on what it does. By analogy, it may be said that the habitat is the organism's "address", and the niche is its ...
Fact Sheet No.15: Tunicate
... become a dominant and a conspicuous member of many shallow-water protected harbors from Connecticut to Maine, its presence appears to have had no major effect on the biodiversity of the fouling species assemblages found in southern New England harbors. Ecological knowledge gained from the above stud ...
... become a dominant and a conspicuous member of many shallow-water protected harbors from Connecticut to Maine, its presence appears to have had no major effect on the biodiversity of the fouling species assemblages found in southern New England harbors. Ecological knowledge gained from the above stud ...
chapter 9 biological invasions and the homogenization of faunas
... however, the large majority of species are not distributed broadly, because individuals of most species have limited dispersal capabilities. These limitations on dispersal ability have produced the interesting phenomenon that many, perhaps even most, species do not occupy all of the areas of the wor ...
... however, the large majority of species are not distributed broadly, because individuals of most species have limited dispersal capabilities. These limitations on dispersal ability have produced the interesting phenomenon that many, perhaps even most, species do not occupy all of the areas of the wor ...
Peace Basin Species of Interest Action Plan
... While the FWCP is not responsible for population management, this plan proposes objectives and actions to improve our understanding of limiting factors, and to support other planning and management initiatives aimed at improving conditions and/or increasing populations of species-atrisk, ungulates, ...
... While the FWCP is not responsible for population management, this plan proposes objectives and actions to improve our understanding of limiting factors, and to support other planning and management initiatives aimed at improving conditions and/or increasing populations of species-atrisk, ungulates, ...
Effects of population-level aggregation
... from large numbers of different processes is to look for statistical regularity in the observed pattern. This has been the traditional approach for exploring the dynamics of species composition, with patterns being evaluated both for the species–time relationship (Preston, 1960; Rosenzweig, 1995; Wh ...
... from large numbers of different processes is to look for statistical regularity in the observed pattern. This has been the traditional approach for exploring the dynamics of species composition, with patterns being evaluated both for the species–time relationship (Preston, 1960; Rosenzweig, 1995; Wh ...
The Need Is Mutual: The Importance of Biological Interactions
... Students should be familiar with the concept of predator and prey, but this is only one of several kinds of biological interactions. Symbiosis is the term given to persistent biological interaction between two species. Some scientists believe that symbiosis should be applied to types of mutualism – ...
... Students should be familiar with the concept of predator and prey, but this is only one of several kinds of biological interactions. Symbiosis is the term given to persistent biological interaction between two species. Some scientists believe that symbiosis should be applied to types of mutualism – ...
Progress toward understanding the ecological impacts of nonnative
... recipient community as general determinants of impact; thus, they could provide the foundation for a theoretical framework for understanding and predicting impact. Further substantive progress toward this goal requires explicit consideration of within-taxon and across-taxa variation in the per capit ...
... recipient community as general determinants of impact; thus, they could provide the foundation for a theoretical framework for understanding and predicting impact. Further substantive progress toward this goal requires explicit consideration of within-taxon and across-taxa variation in the per capit ...
Functional and phylogenetic diversity of woody plants drive
... Srivastava et al., 2012), and has been shown to predict herbivoryinduced seedling mortality in some cases better than the diversity of functional traits commonly considered to be important for herbivores (Paine et al., 2012). Moreover, non-additive effects of increasing plant species richness on her ...
... Srivastava et al., 2012), and has been shown to predict herbivoryinduced seedling mortality in some cases better than the diversity of functional traits commonly considered to be important for herbivores (Paine et al., 2012). Moreover, non-additive effects of increasing plant species richness on her ...
ABSTRACTS - POPBIO is a conference
... pusillum and H. veselskyi (caryophyllaceae) from the south-eastern alps represent an example of morphological and functional adaptation to divergent environmental conditions: H. pusillum has glabrous leaves and occurs in open, wet rock habitats in the alpine belt. in contrast, H. veselskyi has stick ...
... pusillum and H. veselskyi (caryophyllaceae) from the south-eastern alps represent an example of morphological and functional adaptation to divergent environmental conditions: H. pusillum has glabrous leaves and occurs in open, wet rock habitats in the alpine belt. in contrast, H. veselskyi has stick ...
Using ecological restoration to constrain biological invasion
... 1. Biological invasion can permanently alter ecosystem structure and function. Invasive species are difficult to eradicate, so methods for constraining invasions would be ecologically valuable. We examined the potential of ecological restoration to constrain invasion of an old field by Agropyron cri ...
... 1. Biological invasion can permanently alter ecosystem structure and function. Invasive species are difficult to eradicate, so methods for constraining invasions would be ecologically valuable. We examined the potential of ecological restoration to constrain invasion of an old field by Agropyron cri ...
THE POPULATION BIOLOGY OF INVASIVE SPECIES Ann K. Sakai
... species with either great phenotypic plasticity or the potential for rapid evolutionary change. In this section we give a historical approach to life history analysis illustrated by several classic botanical and agricultural studies, examine some cross-taxa comparisons, and propose a general approac ...
... species with either great phenotypic plasticity or the potential for rapid evolutionary change. In this section we give a historical approach to life history analysis illustrated by several classic botanical and agricultural studies, examine some cross-taxa comparisons, and propose a general approac ...
Allocating CSR plant functional types: the use of leaf
... common reference frame for the quantitative comparison of the wider primary adaptive strategies of plants from highly contrasting habitats’ (Pierce et al. 2012). Notably, Hodgson et al. (1999) use of whole-plant traits, which do not allow tall tree life-forms to be compared directly against shorter ...
... common reference frame for the quantitative comparison of the wider primary adaptive strategies of plants from highly contrasting habitats’ (Pierce et al. 2012). Notably, Hodgson et al. (1999) use of whole-plant traits, which do not allow tall tree life-forms to be compared directly against shorter ...
File
... The biosphere (BI uh sfihr) is the portion of Earth that supports life. Ecologists study what takes place in the biosphere. The biosphere includes the air, water, and land where organisms can live, both above and below the ground. The biosphere supports a wide variety of organisms in a wide range of ...
... The biosphere (BI uh sfihr) is the portion of Earth that supports life. Ecologists study what takes place in the biosphere. The biosphere includes the air, water, and land where organisms can live, both above and below the ground. The biosphere supports a wide variety of organisms in a wide range of ...
Determinants of Distribu_on
... environmental condi/ons in which a taxon survives and reproduces in nature, including bio/c factors (compe//on, preda/on, mutualism, etc). Balanus: realized niche ~ fundamental niche Chthamalus: constrained by compe//ve interac/ons to narrower realized niche ...
... environmental condi/ons in which a taxon survives and reproduces in nature, including bio/c factors (compe//on, preda/on, mutualism, etc). Balanus: realized niche ~ fundamental niche Chthamalus: constrained by compe//ve interac/ons to narrower realized niche ...
A Unique Mutualism: Seed Dispersal and Primate Self
... tamarins observed in their natural habitat of secondary forest at Gatun Lake near Barro Colorado Island. The second species were moustached tamarins, Saguinus geoffroyi, found on Padre Isla near Iquitos, Peru. This study was one of the first to observe the seed-swallowing phenomenon in tamarins and ...
... tamarins observed in their natural habitat of secondary forest at Gatun Lake near Barro Colorado Island. The second species were moustached tamarins, Saguinus geoffroyi, found on Padre Isla near Iquitos, Peru. This study was one of the first to observe the seed-swallowing phenomenon in tamarins and ...
Niche and fitness differences relate the maintenance of diversity to
... entertain the idea of distinguishing competitive dominance from niche partitioning. Efforts to untangle the two have a much longer history in coexistence theory, as knowledge of each is required to understand the maintenance of species diversity (Chesson 2000). A case in point is the nearly identica ...
... entertain the idea of distinguishing competitive dominance from niche partitioning. Efforts to untangle the two have a much longer history in coexistence theory, as knowledge of each is required to understand the maintenance of species diversity (Chesson 2000). A case in point is the nearly identica ...
Infectious disease and primate conservation
... (McCallum and Dobson 1995). The critical question should therefore be, ‘under what conditions could a parasite cause host extinction?’ Included here is whether the host population can decline substantially enough that other factors lead to its demise (such as the effects of reduced genetic diversity ...
... (McCallum and Dobson 1995). The critical question should therefore be, ‘under what conditions could a parasite cause host extinction?’ Included here is whether the host population can decline substantially enough that other factors lead to its demise (such as the effects of reduced genetic diversity ...
NATURAL RESOURCES IN THE PUENTE HILLS
... T. Dodge, and S. Maguin, Solid Waste Management Department, Sanitation Districts of Los Angeles County A presentation will be given on the status of the four native habitat projects which resulted from the permitting the Puente Hills Waste Management Facilities in 1993. The first is the preservation ...
... T. Dodge, and S. Maguin, Solid Waste Management Department, Sanitation Districts of Los Angeles County A presentation will be given on the status of the four native habitat projects which resulted from the permitting the Puente Hills Waste Management Facilities in 1993. The first is the preservation ...
MECHANISMS OF MAINTENANCE OF SPECIES DIVERSITY Peter
... The key question to be addressed below is how mechanisms with stabilizing properties arise in various situations. The theoretical literature supports the concept that stable coexistence necessarily requires important ecological differences between species that we may think of as distinguishing their ...
... The key question to be addressed below is how mechanisms with stabilizing properties arise in various situations. The theoretical literature supports the concept that stable coexistence necessarily requires important ecological differences between species that we may think of as distinguishing their ...
Document
... • These plants die, and they add more nutrients to the soil • Now larger trees can grow: Beech, Oak, Walnut, Maple… ...
... • These plants die, and they add more nutrients to the soil • Now larger trees can grow: Beech, Oak, Walnut, Maple… ...
Community Interactions
... Write 4 factors that determine the stability in an ecosystem Biodiversity, Cycle of Matter, Genetic variation, Flow of Energy The more biodiversity present in an ecosystem the more stable the ecosystem is. Flow of Energy Genetic variation ...
... Write 4 factors that determine the stability in an ecosystem Biodiversity, Cycle of Matter, Genetic variation, Flow of Energy The more biodiversity present in an ecosystem the more stable the ecosystem is. Flow of Energy Genetic variation ...
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.