- Wiley Online Library
... selection were slower than rates of climate change owing to substantial negative genetic correlations between otherwise heritable traits (Etterson and Shaw 2001). Hence, evolution will not be a climate change cure-all. The spatial configuration of environments and climate change also will affect whe ...
... selection were slower than rates of climate change owing to substantial negative genetic correlations between otherwise heritable traits (Etterson and Shaw 2001). Hence, evolution will not be a climate change cure-all. The spatial configuration of environments and climate change also will affect whe ...
A crucial step toward realism: responses to climate
... selection were slower than rates of climate change owing to substantial negative genetic correlations between otherwise heritable traits (Etterson and Shaw 2001). Hence, evolution will not be a climate change cure-all. The spatial configuration of environments and climate change also will affect whe ...
... selection were slower than rates of climate change owing to substantial negative genetic correlations between otherwise heritable traits (Etterson and Shaw 2001). Hence, evolution will not be a climate change cure-all. The spatial configuration of environments and climate change also will affect whe ...
Scholarly Interest Report
... has seemingly allowed this invasive species, and possibly many others, to escape the ?to grow or defend? trade-off of plants. As a result, evolutionary-based increases in the competitive ability of introduced plant species potentially contributes to an invasive life-history. The newest member of our ...
... has seemingly allowed this invasive species, and possibly many others, to escape the ?to grow or defend? trade-off of plants. As a result, evolutionary-based increases in the competitive ability of introduced plant species potentially contributes to an invasive life-history. The newest member of our ...
The beta-diversity of species interactions: Untangling the drivers of
... 6. What are the consequences of variability in interaction beta-diversity for ecosystem services? For example, few studies have compared how individual pollinator behavior (i.e., fidelity), plant–pollinator network structure, and pollination services vary across heterogeneous landscapes. Geographica ...
... 6. What are the consequences of variability in interaction beta-diversity for ecosystem services? For example, few studies have compared how individual pollinator behavior (i.e., fidelity), plant–pollinator network structure, and pollination services vary across heterogeneous landscapes. Geographica ...
Niches and Community Interactions
... In the the experiment shown in the graph, two species of paramecia (P. aurelia and P. caudatum) were first grown in separate cultures (dashed lines) . In separate cultures, but under the same conditions, both populations grew. However, when both species were grown together in the same culture (solid ...
... In the the experiment shown in the graph, two species of paramecia (P. aurelia and P. caudatum) were first grown in separate cultures (dashed lines) . In separate cultures, but under the same conditions, both populations grew. However, when both species were grown together in the same culture (solid ...
BIO1100 AN INTRODUCTION TO MARINE BIOLOGY Lecturer: Prof
... environmental conditions that are neither fully terrestrial, nor fully marine. As a result, the biotic assemblages found on rocky shores do not survive full immersion or full emersion, but conditions of wetness between these two extremes. The pattern of zonation on rocky shores results from the grad ...
... environmental conditions that are neither fully terrestrial, nor fully marine. As a result, the biotic assemblages found on rocky shores do not survive full immersion or full emersion, but conditions of wetness between these two extremes. The pattern of zonation on rocky shores results from the grad ...
1369-1376
... phylogenies allows it to be tested. For example, Burns and Strauss (2011) demonstrated in an experimental test that most species germinate well at conspecific and congeneric sites and less well at confamilial and distant relative sites. This pattern is reversed later, as in terms of survival most sp ...
... phylogenies allows it to be tested. For example, Burns and Strauss (2011) demonstrated in an experimental test that most species germinate well at conspecific and congeneric sites and less well at confamilial and distant relative sites. This pattern is reversed later, as in terms of survival most sp ...
Ecological Factors Affecting Community Invasibility
... Stockwell and Ashley 2004; Wares et al. 2005). Some studies do indicate widespread niche conservatism over time (Holt et al. 2005). For example, the crab Hemigrapsus sanguineus has nearly identical abiotic habitat requirements in its invaded and ancestral ranges (Lohrer et al. 2000). In contrast, ot ...
... Stockwell and Ashley 2004; Wares et al. 2005). Some studies do indicate widespread niche conservatism over time (Holt et al. 2005). For example, the crab Hemigrapsus sanguineus has nearly identical abiotic habitat requirements in its invaded and ancestral ranges (Lohrer et al. 2000). In contrast, ot ...
PDF - Tylianakis Lab Group
... Population and community responses to ecological changes may be more easily detected in managed systems, allowing the identification of species traits associated with landscape changes. In this article, we identify two key landscape effects on functional biodiversity where research in tropical agricu ...
... Population and community responses to ecological changes may be more easily detected in managed systems, allowing the identification of species traits associated with landscape changes. In this article, we identify two key landscape effects on functional biodiversity where research in tropical agricu ...
Population and community
... proportion of the populations and thus decrease their density. Sometimes individuals of a population release toxic substances in the soil or water, which tend to limit the growth of their own type of plants (consepecifics) and thus control over-crowding of a species at a particular place. This is kn ...
... proportion of the populations and thus decrease their density. Sometimes individuals of a population release toxic substances in the soil or water, which tend to limit the growth of their own type of plants (consepecifics) and thus control over-crowding of a species at a particular place. This is kn ...
conservation and biodiversity notes
... • Biodiversity increases the stability and resilience of communities and ecosystems – Decreased biodiversity reduces a natural system’s ability to function and provide services to our society ...
... • Biodiversity increases the stability and resilience of communities and ecosystems – Decreased biodiversity reduces a natural system’s ability to function and provide services to our society ...
Scaling-up Trait Variation from Individuals to Ecosystems
... potentially have opposing effects on predator–prey dynamics. Their results suggest that while trait variation mostly decreases interference competition, it often decreases attack rate to a larger extent, thus being largely stabilizing. Moreover, increased variation reduces the chance of species exti ...
... potentially have opposing effects on predator–prey dynamics. Their results suggest that while trait variation mostly decreases interference competition, it often decreases attack rate to a larger extent, thus being largely stabilizing. Moreover, increased variation reduces the chance of species exti ...
Ch 8 Review
... 2. Which of the following statements can be made about competition between organisms in a particular ecosystem? F. Organisms rarely compete with members of their own species. G. Organisms compete directly when they require the same resources. H. Organisms only compete when supplies of a resource are ...
... 2. Which of the following statements can be made about competition between organisms in a particular ecosystem? F. Organisms rarely compete with members of their own species. G. Organisms compete directly when they require the same resources. H. Organisms only compete when supplies of a resource are ...
Vegetation dynamics and community assembly in post
... mechanisms is a challenging but integral part of ecological studies and conservation planning. Ecological theory proposes that biotic, abiotic and stochastic factors act as “ecological filters” to determine the assembly and structure of local communities. The functional strategies of the species in ...
... mechanisms is a challenging but integral part of ecological studies and conservation planning. Ecological theory proposes that biotic, abiotic and stochastic factors act as “ecological filters” to determine the assembly and structure of local communities. The functional strategies of the species in ...
Understanding Populations
... 2. Which of the following statements can be made about competition between organisms in a particular ecosystem? F. Organisms rarely compete with members of their own species. G. Organisms compete directly when they require the same resources. H. Organisms only compete when supplies of a resource are ...
... 2. Which of the following statements can be made about competition between organisms in a particular ecosystem? F. Organisms rarely compete with members of their own species. G. Organisms compete directly when they require the same resources. H. Organisms only compete when supplies of a resource are ...
Species Interactions and Community Ecology
... alters, but does not destroy, all local organisms - The remaining organisms form “building blocks” which help shape the process of succession - Fires, hurricanes, farming, logging • Climax community = remains in place with few changes - Until another disturbance restarts succession ...
... alters, but does not destroy, all local organisms - The remaining organisms form “building blocks” which help shape the process of succession - Fires, hurricanes, farming, logging • Climax community = remains in place with few changes - Until another disturbance restarts succession ...
Beak of the Fish: What Cichlid Flocks Reveal About Speciation
... That is, their classification as separate species was were derived from different ancestral lines, and in ...
... That is, their classification as separate species was were derived from different ancestral lines, and in ...
Dispersal and persistence
... Barriers – abiotic or biotic feature that restricts movement of genes or individuals from one place to another • Species-specific • Generally, organisms that inhabit fluctuating environments are more tolerant of extreme/unusual conditions than species in stable habitats ...
... Barriers – abiotic or biotic feature that restricts movement of genes or individuals from one place to another • Species-specific • Generally, organisms that inhabit fluctuating environments are more tolerant of extreme/unusual conditions than species in stable habitats ...
13.1 Ecologists Study Relationships / 13.2 Biotic & Abiotic Organism
... on the small mammals, amphibians, insects, and fruit found in this habitat. Red foxes are active at night. They provide blood for blackflies and mosquitoes, and are host to numerous diseases. The scraps, or carrion, left behind after a fox's meal provide food for many small scavengers and decomposer ...
... on the small mammals, amphibians, insects, and fruit found in this habitat. Red foxes are active at night. They provide blood for blackflies and mosquitoes, and are host to numerous diseases. The scraps, or carrion, left behind after a fox's meal provide food for many small scavengers and decomposer ...
Biotic Globalization: Does Competition from Introduced Species
... spatially restricted environments such as islands and lakes. However, there are surprisingly few instances in which extinctions of resident species can be attributed to competition from new species. This suggests either that competition-driven extinctions take longer to occur than those caused by pr ...
... spatially restricted environments such as islands and lakes. However, there are surprisingly few instances in which extinctions of resident species can be attributed to competition from new species. This suggests either that competition-driven extinctions take longer to occur than those caused by pr ...
PowerPoint slides
... Resources naturally fluctuate over time. When availability of the most limiting resource is greater than resource uptake, the system is vulnerable to invasion. SUMMARY: • Conceptual appealing • Flexibility to accommodate space, time, & many different resources • Experimental evidence But • Low predi ...
... Resources naturally fluctuate over time. When availability of the most limiting resource is greater than resource uptake, the system is vulnerable to invasion. SUMMARY: • Conceptual appealing • Flexibility to accommodate space, time, & many different resources • Experimental evidence But • Low predi ...
Rewilding and Biodiversity
... ers, such that their elimination from an ecosystem often triggers cascades of direct and indirect changes on more than a single trophic level, leading eventually to losses of habitats and extirpation of other species in the food web. “Keystone species” is an inelegant but convenient way to refer to ...
... ers, such that their elimination from an ecosystem often triggers cascades of direct and indirect changes on more than a single trophic level, leading eventually to losses of habitats and extirpation of other species in the food web. “Keystone species” is an inelegant but convenient way to refer to ...
Law of the unspecialized - Department of Ecology and Evolutionary
... so diverse? There are now several phylogenies of groups with more and less specialized clades, and a new study by Termonia et al.1 ‘ups the ante’ by combining knowledge of the mechanistic basis of specialization in Chrysomelina beetles with a phylogenetic analysis of diversification. In response to ...
... so diverse? There are now several phylogenies of groups with more and less specialized clades, and a new study by Termonia et al.1 ‘ups the ante’ by combining knowledge of the mechanistic basis of specialization in Chrysomelina beetles with a phylogenetic analysis of diversification. In response to ...
Central Arkansas Glade and Woodland Restoration
... Glades are open rocky areas dominated by warm-season grasses and drought adapted forbs. They can be extensive in size and appear as treeless openings within landscapes often dominated by woodland communities. The open, prairie like glades provides habitat structure for grassland birds such as nestin ...
... Glades are open rocky areas dominated by warm-season grasses and drought adapted forbs. They can be extensive in size and appear as treeless openings within landscapes often dominated by woodland communities. The open, prairie like glades provides habitat structure for grassland birds such as nestin ...
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.