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The contribution of species richness and composition to bacterial
... decelerating diversity-functioning relationship under some conditions (Fig. 1), so it is not possible to distinguish between the two mechanisms on the basis of the shape of the diversity-function relationship alone. Both of these mechanisms are important in determining the level of ecosystem functio ...
... decelerating diversity-functioning relationship under some conditions (Fig. 1), so it is not possible to distinguish between the two mechanisms on the basis of the shape of the diversity-function relationship alone. Both of these mechanisms are important in determining the level of ecosystem functio ...
File - Israel Del Toro
... terrestres. Raul Zapata Mata. Invited Seminars and Professional Development Workshops ...
... terrestres. Raul Zapata Mata. Invited Seminars and Professional Development Workshops ...
Sweden
... No studies of the effects of the use of P. hermaphrodita on biological diversity in Sweden have been found in a literature search. It is probable that this biocontrol agent negatively affects populations of native snails and slugs, but it is difficult to distinguish between the effects of the mollus ...
... No studies of the effects of the use of P. hermaphrodita on biological diversity in Sweden have been found in a literature search. It is probable that this biocontrol agent negatively affects populations of native snails and slugs, but it is difficult to distinguish between the effects of the mollus ...
A distance-based framework for measuring functional diversity from
... descriptors and to treat semi-quantitative variables as described by Podani (1999). This coefficient is the default used in the ‘‘dbFD’’ function of the ‘‘FD’’ package to measure FD under our distance-based framework when some traits are semi-quantitative and/or qualitative, or when weights are speci ...
... descriptors and to treat semi-quantitative variables as described by Podani (1999). This coefficient is the default used in the ‘‘dbFD’’ function of the ‘‘FD’’ package to measure FD under our distance-based framework when some traits are semi-quantitative and/or qualitative, or when weights are speci ...
produktivitas ekosistem dan jasanya
... The redundancy (sometimes referred to as the Functional Compensation) and rivet hypotheses seek to explain how an ecosystem functions, based on the ecological role of organisms within it. The redundancy and rivet hypotheses are the most commonly used explanations for the link between ecosystem funct ...
... The redundancy (sometimes referred to as the Functional Compensation) and rivet hypotheses seek to explain how an ecosystem functions, based on the ecological role of organisms within it. The redundancy and rivet hypotheses are the most commonly used explanations for the link between ecosystem funct ...
Interactions among Foundation Species and Their Consequences
... species occur when a foundation species monopolizes areas of the primary substrate and inhibits colonization by other foundation species that are unable to utilize the interstitial space or the novel substrate created by the dominant foundation species. These adjacent assemblages are most apparent i ...
... species occur when a foundation species monopolizes areas of the primary substrate and inhibits colonization by other foundation species that are unable to utilize the interstitial space or the novel substrate created by the dominant foundation species. These adjacent assemblages are most apparent i ...
Andow et al 1990
... History • Reaction Diffusion Models – Theory by Skellam (1951) – Tested by Andow et al (1990)(animal) and Higgins and Richardson (1996 and others) (plants) – Parameters: population density, population growth rate and diffusion coefficient across a heterogeneous landscape ...
... History • Reaction Diffusion Models – Theory by Skellam (1951) – Tested by Andow et al (1990)(animal) and Higgins and Richardson (1996 and others) (plants) – Parameters: population density, population growth rate and diffusion coefficient across a heterogeneous landscape ...
Fish population size, and not density, as the determining factor of
... The diversity and abundance of parasites vary widely among populations of the same host species. These infection parameters are, to some extent, determined by characteristics of the host population or of its habitat. Recent studies have supported predictions derived from epidemiological models regar ...
... The diversity and abundance of parasites vary widely among populations of the same host species. These infection parameters are, to some extent, determined by characteristics of the host population or of its habitat. Recent studies have supported predictions derived from epidemiological models regar ...
Application of species distribution models to explain and predict the
... In conjunction with the implementation of the California network of MPAs, ecological surveys using scuba divers were initiated to characterize structure and distribution of populations and biological communities. These surveys were conducted at several MPAs to characterize initial ecological respons ...
... In conjunction with the implementation of the California network of MPAs, ecological surveys using scuba divers were initiated to characterize structure and distribution of populations and biological communities. These surveys were conducted at several MPAs to characterize initial ecological respons ...
The ecology of inland waters
... Our workshop was held in a relaxed and informal atmosphere on the edge of Doñana’s huge marismas (temporary marsh system) in a World Heritage Site. The relatively small size of the meeting, and the fact that everyone made a presentation, and no one was there only as a member of the audience, helped ...
... Our workshop was held in a relaxed and informal atmosphere on the edge of Doñana’s huge marismas (temporary marsh system) in a World Heritage Site. The relatively small size of the meeting, and the fact that everyone made a presentation, and no one was there only as a member of the audience, helped ...
Evolutionary food web model based on body masses gives realistic
... Brännström et al. [16]. The evolutionary process in this model generates large networks that show an almost static behaviour, with clearly defined niches all of which are and remain occupied. Even if a newly emerging species is slightly better adapted to the resources and therefore displaces a speci ...
... Brännström et al. [16]. The evolutionary process in this model generates large networks that show an almost static behaviour, with clearly defined niches all of which are and remain occupied. Even if a newly emerging species is slightly better adapted to the resources and therefore displaces a speci ...
Full-text PDF - Association for the Sciences of Limnology
... particles per species. Unfortunately, Brunchioasychis americana is so rare at this latitude that as many as 25 individuals have not been collected. No data on the gut contents of this species are available. The measurements were grouped into the same six size classes used for tubes and parent sedime ...
... particles per species. Unfortunately, Brunchioasychis americana is so rare at this latitude that as many as 25 individuals have not been collected. No data on the gut contents of this species are available. The measurements were grouped into the same six size classes used for tubes and parent sedime ...
Concepts of disturbance, colonization and early development or
... of environmental change. Species would not co-exist if the time required for one species to eliminate another in competition is much shorter than the time taken for an environmental change (Connell, 1979). Slower changes in the physical environment would not maintain diversity while greater rates wo ...
... of environmental change. Species would not co-exist if the time required for one species to eliminate another in competition is much shorter than the time taken for an environmental change (Connell, 1979). Slower changes in the physical environment would not maintain diversity while greater rates wo ...
Ecological Considerations in the Design of River and Stream
... population density. These dispersing individuals maintain gene flow among populations and may supplement populations where recruitment is unable to keep pace with the loss of individuals. For many small species (especially invertebrates), dispersal of individuals provides a mechanism for colonizing ...
... population density. These dispersing individuals maintain gene flow among populations and may supplement populations where recruitment is unable to keep pace with the loss of individuals. For many small species (especially invertebrates), dispersal of individuals provides a mechanism for colonizing ...
The Ecological Strategies of Sea Turtles1
... beaches for nesting, where there were Smith (1979) would call the "phenotype minimal risks of predation by land animals set" of the living sea turtles—the complex on the vulnerable adults and the unpro- of morphological and behavioral charactected nests. It is interesting to note that ters common to ...
... beaches for nesting, where there were Smith (1979) would call the "phenotype minimal risks of predation by land animals set" of the living sea turtles—the complex on the vulnerable adults and the unpro- of morphological and behavioral charactected nests. It is interesting to note that ters common to ...
SER International Primer on Ecological Restoration
... 6. The restored ecosystem is suitably integrated into a larger ecological matrix or landscape, with which it interacts through abiotic and biotic flows and exchanges. 7. Potential threats to the health and integrity of the restored ecosystem from the surrounding landscape have been eliminated or red ...
... 6. The restored ecosystem is suitably integrated into a larger ecological matrix or landscape, with which it interacts through abiotic and biotic flows and exchanges. 7. Potential threats to the health and integrity of the restored ecosystem from the surrounding landscape have been eliminated or red ...
Species richness and aggregation effects on the productivity of
... which are well adapted to a change in the environment and are able to compensate for the decline of the less adapted species.8,9 It is suggested that several explicit mechanisms, termed ‘biodiversity effects’, underlie diversity–ecosystem functioning relationships and it is likely that these mechani ...
... which are well adapted to a change in the environment and are able to compensate for the decline of the less adapted species.8,9 It is suggested that several explicit mechanisms, termed ‘biodiversity effects’, underlie diversity–ecosystem functioning relationships and it is likely that these mechani ...
Life History - practical ecology
... The life history strategy of a species is the overall pattern in average timing and nature of life history events. It is shaped by the way the organism divides its time and energy between growth, reproduction, and survival. ...
... The life history strategy of a species is the overall pattern in average timing and nature of life history events. It is shaped by the way the organism divides its time and energy between growth, reproduction, and survival. ...
A presence-only habitat suitability model for large grazing
... The package Biomapper was used. We selected this software for a number of reasons: (a) species’ presence data were collected initially in accordance with the research objectives outlined in Traill (2004). During the study period (2001), we considered the need for HS maps but had no reliable absence ...
... The package Biomapper was used. We selected this software for a number of reasons: (a) species’ presence data were collected initially in accordance with the research objectives outlined in Traill (2004). During the study period (2001), we considered the need for HS maps but had no reliable absence ...
The importance of having two species instead of one in
... maintain species integrity when co-occurring. The PSC emphasizes on the evolutionary history (at a larger temporal scale) that led to the origin of the new species, which is inferred from phylogenetic relationships between species. The ESC uses ecological characteristics, such as habitat requirement ...
... maintain species integrity when co-occurring. The PSC emphasizes on the evolutionary history (at a larger temporal scale) that led to the origin of the new species, which is inferred from phylogenetic relationships between species. The ESC uses ecological characteristics, such as habitat requirement ...
Life history patterns of six sympatric species of Leptophlebiidae
... clarification (Fig. 2). This analysis does suggest that the species has constant recruitment of early instars and a very long potential emergence period. In all months the smallest size cohort represented the lowest proportion of the population, but this group was not located in other biotopes. Appa ...
... clarification (Fig. 2). This analysis does suggest that the species has constant recruitment of early instars and a very long potential emergence period. In all months the smallest size cohort represented the lowest proportion of the population, but this group was not located in other biotopes. Appa ...
Invasive Alien Plant Species
... change, 9 as many are weed species that are well adapted to disturbed conditions. 10 Some act as opportunistic invaders or ‘passengers’ that invade vulnerable habitats because of changes in land management. 11 This is reflected in the high levels of non-native plant species in urban areas, which are ...
... change, 9 as many are weed species that are well adapted to disturbed conditions. 10 Some act as opportunistic invaders or ‘passengers’ that invade vulnerable habitats because of changes in land management. 11 This is reflected in the high levels of non-native plant species in urban areas, which are ...
An Index of Diversity and the Relation of Certain Concepts to Diversity
... rich, uniform-diverse, homogeneous-heterogene-in the statistical sense has rarely been applied to All have been applied to other than the most common species (Curtis and ous, similar-different. the habitatas well as to the communityof orga- McIntosh 1951), and normally homogeneity is nisms, but it i ...
... rich, uniform-diverse, homogeneous-heterogene-in the statistical sense has rarely been applied to All have been applied to other than the most common species (Curtis and ous, similar-different. the habitatas well as to the communityof orga- McIntosh 1951), and normally homogeneity is nisms, but it i ...
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.