Consistency of species ranking based on functional leaf traits
... species may be confounded by interactions with the environment. It may, therefore, be asked how traits can be used to classify species relative to one another in a consistent way, even if their absolute values vary across environments – that is even if they are plastic. The aim of this study was to ...
... species may be confounded by interactions with the environment. It may, therefore, be asked how traits can be used to classify species relative to one another in a consistent way, even if their absolute values vary across environments – that is even if they are plastic. The aim of this study was to ...
An Attack on our Landscapes by Invasive Exotic Plant Species
... MIEPSTF reviews, discusses and recommends educational and regulatory action related to managing known and potential non-native invasive plant species that negatively impact natural communities and built landscape in Missouri and elsewhere in the lower Midwest. ...
... MIEPSTF reviews, discusses and recommends educational and regulatory action related to managing known and potential non-native invasive plant species that negatively impact natural communities and built landscape in Missouri and elsewhere in the lower Midwest. ...
Towards an Anthropology of Organic Health: The Relational Fields
... This type of relational thinking does not disavow the existence and function of DNA, or the well-established evolutionary facts of genetic variation across populations. Yet, while neoDarwinian theory explains changes in genetic frequencies across populations over time, it wholly fails to articulate ...
... This type of relational thinking does not disavow the existence and function of DNA, or the well-established evolutionary facts of genetic variation across populations. Yet, while neoDarwinian theory explains changes in genetic frequencies across populations over time, it wholly fails to articulate ...
Ecological Engineering Effects of plant diversity - Everglades-HUB
... (at ␣ = 0.05 level). Effects of plant parameters (species richness and plant biomass) on microbial parameters (microbial biomass and carbon substrate group utilization and diversity) were tested using the Pearson coefficient. The metabolic profiles pattern and the relationships between microbial and p ...
... (at ␣ = 0.05 level). Effects of plant parameters (species richness and plant biomass) on microbial parameters (microbial biomass and carbon substrate group utilization and diversity) were tested using the Pearson coefficient. The metabolic profiles pattern and the relationships between microbial and p ...
Species-rich ecosystems are vulnerable to cascading extinctions in an increasingly variable world
... that intermediate intensity and frequency of disturbances might promote coexistence of competing species—the “intermediate disturbance hypothesis” (reviewed by Miller et al. 2011). High species diversity in turn should often have a stabilizing effect at the community level if species respond differe ...
... that intermediate intensity and frequency of disturbances might promote coexistence of competing species—the “intermediate disturbance hypothesis” (reviewed by Miller et al. 2011). High species diversity in turn should often have a stabilizing effect at the community level if species respond differe ...
When can two plant species facilitate each other`s pollination?
... facilitate each other’s pollination? / Oikos 105: 197 /207. Facilitation occurs when an increase in the density of one species causes an increase in the population growth rate or the density of a second species. In plants, ample evidence demonstrates that one species can facilitate another by amel ...
... facilitate each other’s pollination? / Oikos 105: 197 /207. Facilitation occurs when an increase in the density of one species causes an increase in the population growth rate or the density of a second species. In plants, ample evidence demonstrates that one species can facilitate another by amel ...
Living on the Edge of Two Changing Worlds: Forecasting the
... et al. 2005, Service 2004, Witman & Smith 2003). Although short-term fluctuations in the marine environment are often less variable in magnitude compared with those in the terrestrial environment, they have been shown to have significant physiological impacts (Dahlhoff 2004, Dahlhoff & Menge 1996, Lei ...
... et al. 2005, Service 2004, Witman & Smith 2003). Although short-term fluctuations in the marine environment are often less variable in magnitude compared with those in the terrestrial environment, they have been shown to have significant physiological impacts (Dahlhoff 2004, Dahlhoff & Menge 1996, Lei ...
Geographic range of West African freshwater fishes
... The size of the geographic range (range size) of a species is defined here as the number of rivers in which the species is present. The frequency distribution of this feature is described by a negative power function. A stochastic model in which all species are assumed to have the same probability o ...
... The size of the geographic range (range size) of a species is defined here as the number of rivers in which the species is present. The frequency distribution of this feature is described by a negative power function. A stochastic model in which all species are assumed to have the same probability o ...
ORN_chap3
... species with disjunct distributions in continuous habitat • likely explanation for present discontinuities: during past climatic extreme, species were confined to remaining isolated refuges of habitat; with improvement in climate they spread less rapidly than habitat (some tropical species) • some s ...
... species with disjunct distributions in continuous habitat • likely explanation for present discontinuities: during past climatic extreme, species were confined to remaining isolated refuges of habitat; with improvement in climate they spread less rapidly than habitat (some tropical species) • some s ...
ecological opportunity and phenotypic plasticity
... competition between species). Because ecological character displacement generates new populations that differ in resource use, this process should only occur when exploitable resources are available. We tested this hypothesis in two species of spadefoot toads ( Spea bombifrons and S. multiplicata) w ...
... competition between species). Because ecological character displacement generates new populations that differ in resource use, this process should only occur when exploitable resources are available. We tested this hypothesis in two species of spadefoot toads ( Spea bombifrons and S. multiplicata) w ...
Wellborn et al. (1996)
... related to permanence (Table 1). With few exceptions, however, sorting occurs at the family level and below; most higher taxa (phyla, classes, orders) are not restricted to particular regions of the gradient. Among the groups in which these patterns have been quantified, species are often restricted ...
... related to permanence (Table 1). With few exceptions, however, sorting occurs at the family level and below; most higher taxa (phyla, classes, orders) are not restricted to particular regions of the gradient. Among the groups in which these patterns have been quantified, species are often restricted ...
File - Hauber Lab Website
... are the most commonly studied avian brood parasites (Davies 2000), although obligate interspecific brood parasitism has evolved at least 7 separate times among various avian clades, including cowbirds (Icteridae), honeyguides (Indicatoridae), Old World cuckoos (Cuculinae), twice in the New World cuc ...
... are the most commonly studied avian brood parasites (Davies 2000), although obligate interspecific brood parasitism has evolved at least 7 separate times among various avian clades, including cowbirds (Icteridae), honeyguides (Indicatoridae), Old World cuckoos (Cuculinae), twice in the New World cuc ...
Biodiversity and resilience of arthropod communities after fire
... Abstract Changes in ecosystem functions following disturbances are of central concern in ecology and a challenge for ecologists is to understand the factors that affect the resilience of community structures and ecosystem functions. In many forest ecosystems, one such important natural disturbance i ...
... Abstract Changes in ecosystem functions following disturbances are of central concern in ecology and a challenge for ecologists is to understand the factors that affect the resilience of community structures and ecosystem functions. In many forest ecosystems, one such important natural disturbance i ...
niche principles and 4 case studies
... Examine shifts in the behavior or ecology of one species in response to another species. (In particular, niche shifts are commonly used to study interspecific competition, based on Gause’s Principle of Competitive Exclusion). ...
... Examine shifts in the behavior or ecology of one species in response to another species. (In particular, niche shifts are commonly used to study interspecific competition, based on Gause’s Principle of Competitive Exclusion). ...
Species-specific positive effects in an annual plant
... et al. 1999), and this is more tractable in certain life-forms. Furthermore, it has been argued that removal experiments are superior to additions since communities are formed by many processes, not just simple addition, removals inform on the importance of non-random species loss within systems, an ...
... et al. 1999), and this is more tractable in certain life-forms. Furthermore, it has been argued that removal experiments are superior to additions since communities are formed by many processes, not just simple addition, removals inform on the importance of non-random species loss within systems, an ...
Quantifying Biodiversity: Experience with Parataxonomists and
... tropical habitats: the insect faunas are extremely diverse; collecting over long periods of time and in several habitats yields large numbers of insect specimens; data reflecting the patchy temporal and spatial distributions of insects are complex and the insect species need to be cross-referenced a ...
... tropical habitats: the insect faunas are extremely diverse; collecting over long periods of time and in several habitats yields large numbers of insect specimens; data reflecting the patchy temporal and spatial distributions of insects are complex and the insect species need to be cross-referenced a ...
Primary consumers
... • Interspecific interactions can be classified according to the effect on the populations concerned. – –/– interactions occur when two populations in a community compete for a common resource. – +/+ interactions are mutually beneficial, such as between plants and their pollinators. ...
... • Interspecific interactions can be classified according to the effect on the populations concerned. – –/– interactions occur when two populations in a community compete for a common resource. – +/+ interactions are mutually beneficial, such as between plants and their pollinators. ...
book of abstracts
... At different national levels mapping and assessment of ecosystems and their services initiatives are currently undertaken. In synergy the EU DG-Environment (DG-Env) working group MAES (Mapping and Assessment of Ecosystems and their Services) works on a common methodological framework. The MAES work ...
... At different national levels mapping and assessment of ecosystems and their services initiatives are currently undertaken. In synergy the EU DG-Environment (DG-Env) working group MAES (Mapping and Assessment of Ecosystems and their Services) works on a common methodological framework. The MAES work ...
Traits underpinning desiccation resistance explain distribution
... 2006). Quantification of the variation in functional traits directly links organism performance to environmental conditions (Violle et al. 2007) and facilitates recognition of generalities in species responses to spatial or temporal variation therein (McGill et al. 2006). The functional approach has ...
... 2006). Quantification of the variation in functional traits directly links organism performance to environmental conditions (Violle et al. 2007) and facilitates recognition of generalities in species responses to spatial or temporal variation therein (McGill et al. 2006). The functional approach has ...
bc protected areas research forum
... models used to represent complex ecosystems suffer because of imprecision, uncertainty and sparsity common to ecological data. Additionally, these traditional systems can only incorporate that expert knowledge which ...
... models used to represent complex ecosystems suffer because of imprecision, uncertainty and sparsity common to ecological data. Additionally, these traditional systems can only incorporate that expert knowledge which ...
rhododendron poisons the soil, doesn`t it?
... plant:fungus scale to the complex multi-species landscape scale. Mycorrhizal associations occur as several distinct and diverse taxonomic and functional types (about which more below and also see note 9), but they are only one multifarious component in a complex of interconnected systems that suppor ...
... plant:fungus scale to the complex multi-species landscape scale. Mycorrhizal associations occur as several distinct and diverse taxonomic and functional types (about which more below and also see note 9), but they are only one multifarious component in a complex of interconnected systems that suppor ...
Neutral theory and community ecology
... Community ecology, intraspecific variability, neutral theory, theoretical ecology. Ecology Letters (2004) 7: 241–253 ...
... Community ecology, intraspecific variability, neutral theory, theoretical ecology. Ecology Letters (2004) 7: 241–253 ...
Southeastern Naturalist - Florida Museum of Natural History
... forms have been relatively small species that presumably compete with native species for resources. This situation has changed, however, with the introduction of a large, carnivorous lizard species, the Nile Monitor (Varanus niloticus), in the Cape Coral area of Lee County. Varanus niloticus was fir ...
... forms have been relatively small species that presumably compete with native species for resources. This situation has changed, however, with the introduction of a large, carnivorous lizard species, the Nile Monitor (Varanus niloticus), in the Cape Coral area of Lee County. Varanus niloticus was fir ...
MUTUALISMS AND AQUATIC COMMUNITY STRUCTURE: The
... when moved from high-light to low-light environments. Corals that did not bleach or acquire new symbionts died more frequently than corals that bleached but then acquired new symbionts. This suggests that a failure of corals to change symbionts when encountering new environmental conditions can be f ...
... when moved from high-light to low-light environments. Corals that did not bleach or acquire new symbionts died more frequently than corals that bleached but then acquired new symbionts. This suggests that a failure of corals to change symbionts when encountering new environmental conditions can be f ...
An Optimization Model that Links Masting to Seed Herbivory
... with periods of 2 years or 3 years based on geography. Any theory of masting must account for periodic reproduction with conditional period length. ...
... with periods of 2 years or 3 years based on geography. Any theory of masting must account for periodic reproduction with conditional period length. ...
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.