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Opposing intraspecific vs. interspecific diversity effects on
... Exploring potential links between biodiversity and ecosystem functioning (BEF) is a major challenge in contemporary ecology. As a consequence of anthropogenic ecosystem degradation, local species diversity is changing, a process that has the potential to alter ecosystem functions such as nutrient cy ...
... Exploring potential links between biodiversity and ecosystem functioning (BEF) is a major challenge in contemporary ecology. As a consequence of anthropogenic ecosystem degradation, local species diversity is changing, a process that has the potential to alter ecosystem functions such as nutrient cy ...
Final Position Statement Feral Horses and Burros in North America
... Feral Horses and Burros in North America Feral horses and burros are invasive species in North America. Exotic, non-native species are among the most widespread and serious threats to the integrity of native wildlife populations because they invade and degrade native ecosystems. When invasive specie ...
... Feral Horses and Burros in North America Feral horses and burros are invasive species in North America. Exotic, non-native species are among the most widespread and serious threats to the integrity of native wildlife populations because they invade and degrade native ecosystems. When invasive specie ...
ORIGIN, BIOGEOGRAPHICAL MIGRATIONS AND
... the natives that have persisted from time immemorial free from human disturbances. However, recent research indicates there are woodland areas that have developed subsequent to anthropological disturbance during the late-Holocene at least 4,000 years ago (80). These mound-building, earlyAmerican pop ...
... the natives that have persisted from time immemorial free from human disturbances. However, recent research indicates there are woodland areas that have developed subsequent to anthropological disturbance during the late-Holocene at least 4,000 years ago (80). These mound-building, earlyAmerican pop ...
Coexistence and relative abundance in annual plant assemblages
... competitors has long been hypothesized and has received consistent empirical support for both perennial and annual systems (Black 1958; Gross and Werner 1982; Gross 1984; McConnaughay and Bazzaz 1987; Rees 1995; Eriksson 1997; Turnbull et al. 1999; Freckleton and Watkinson 2001; Leishman 2001; see L ...
... competitors has long been hypothesized and has received consistent empirical support for both perennial and annual systems (Black 1958; Gross and Werner 1982; Gross 1984; McConnaughay and Bazzaz 1987; Rees 1995; Eriksson 1997; Turnbull et al. 1999; Freckleton and Watkinson 2001; Leishman 2001; see L ...
Invasive plant species and competition for pollinators
... other restricting factors are good, a maximum of four seeds per flower develop in a so-called schizocarp or “split-fruit” with four mericarps (seeds) (Den virtuella floran 2015). ...
... other restricting factors are good, a maximum of four seeds per flower develop in a so-called schizocarp or “split-fruit” with four mericarps (seeds) (Den virtuella floran 2015). ...
Regeneration of Sponges in Ecological Context: Is Regeneration an
... Comparisons of differently dealt wounds in many individuals of the same species have revealed that the amount of damage, type of damage, size of the sponge, and location on the individual sponge can influence recovery, and even susceptibility to further damage by other agents (Henry and Hart 2005 fo ...
... Comparisons of differently dealt wounds in many individuals of the same species have revealed that the amount of damage, type of damage, size of the sponge, and location on the individual sponge can influence recovery, and even susceptibility to further damage by other agents (Henry and Hart 2005 fo ...
B. Current Taxonomic Status History: How many manzanita species
... a member of maritime chaparral. Maritime chaparral represents a plant community of special concern because of the high density of narrowly distributed endemic species (the California Coastal Commission, for example, considers it an Environmentally Sensitive Habitat). From Mendocino County to the Cha ...
... a member of maritime chaparral. Maritime chaparral represents a plant community of special concern because of the high density of narrowly distributed endemic species (the California Coastal Commission, for example, considers it an Environmentally Sensitive Habitat). From Mendocino County to the Cha ...
Growth, regeneration and predation in three species of large coral
... occasionally contracted. Only measurements of individuals in their relaxed state were used in this study. Regeneration. Regeneration capacity of the sponges was studied in situ on a reef site near the Carmabi Institute (Buoy 0, Fig. 1). For this, 27 individuals of A. clathrodes (depths ranged from 1 ...
... occasionally contracted. Only measurements of individuals in their relaxed state were used in this study. Regeneration. Regeneration capacity of the sponges was studied in situ on a reef site near the Carmabi Institute (Buoy 0, Fig. 1). For this, 27 individuals of A. clathrodes (depths ranged from 1 ...
Tradeoffs, competition, and coexistence in eastern deciduous forest
... ability. In the second, the number of baits discovered by a species was standardised by the foraging activity of that species (as measured by the number of pitfalls the species fell into) to provide a measure of relative discovery ability. In this second method, a null expectation for the number of ...
... ability. In the second, the number of baits discovered by a species was standardised by the foraging activity of that species (as measured by the number of pitfalls the species fell into) to provide a measure of relative discovery ability. In this second method, a null expectation for the number of ...
Effects of local adaptation and interspecific competition on species
... hills of a new adaptive landscape. This evolution in response to a changing adaptive landscape has been explored theoretically,5–8 and a few recent models have examined how the presence of a population at the top of a fitness peak (local adaptation) affects geographic range shifts and future adaptiv ...
... hills of a new adaptive landscape. This evolution in response to a changing adaptive landscape has been explored theoretically,5–8 and a few recent models have examined how the presence of a population at the top of a fitness peak (local adaptation) affects geographic range shifts and future adaptiv ...
Factors influencing in mangroves biodiversity and distributional
... fourteen orders. Two families are exclusively mangrove, and there are no orders or higher ranks with all mangrove taxa (Duke, 1992). For the Rhizophoraceae, often referred to as the ‘true mangrove’ family, only four of its sixteen genera inhabit mangroves. Generally, these families are more commonly ...
... fourteen orders. Two families are exclusively mangrove, and there are no orders or higher ranks with all mangrove taxa (Duke, 1992). For the Rhizophoraceae, often referred to as the ‘true mangrove’ family, only four of its sixteen genera inhabit mangroves. Generally, these families are more commonly ...
Ecological and evolutionary consequences of biotic homogenization
... Lockwood and McKinney [13] recently emphasized the importance of identifying and understanding present-day patterns of biotic homogenization for establishing proactive conservation goals aimed at reducing its future ecological effects. Although many investigations have provided considerable insight ...
... Lockwood and McKinney [13] recently emphasized the importance of identifying and understanding present-day patterns of biotic homogenization for establishing proactive conservation goals aimed at reducing its future ecological effects. Although many investigations have provided considerable insight ...
Hierarchical Bayesian models in ecology: Reconstructing
... to the task of inferring species interaction networks from spatial species abundance data, as typically obtained from ecological surveys of fieldwork. The model by Lèbre et al. (2010) is a non-homogeneous dynamic Bayesian network, which combines the Bayesian hierarchical regression model of Andrieu a ...
... to the task of inferring species interaction networks from spatial species abundance data, as typically obtained from ecological surveys of fieldwork. The model by Lèbre et al. (2010) is a non-homogeneous dynamic Bayesian network, which combines the Bayesian hierarchical regression model of Andrieu a ...
MF2222 Biological Control of Insect Pests on
... determine their potential to attack and/or feed on other beneficial species. Growing awareness and concern about ...
... determine their potential to attack and/or feed on other beneficial species. Growing awareness and concern about ...
Biological Control of Insect Pests on Field Crops
... determine their potential to attack and/or feed on other beneficial species. Growing awareness and concern about ...
... determine their potential to attack and/or feed on other beneficial species. Growing awareness and concern about ...
Implementing invasive species control: a case study of multi
... Between 2006 and 2014, a series of opportunistic AIS experimental control actions took place for nuisance aquatic plants, Asian clams, warm water fish and crayfish with varying levels of successful removal. In 2009, a focused effort to remove Eurasian watermilfoil from Emerald Bay, a California Stat ...
... Between 2006 and 2014, a series of opportunistic AIS experimental control actions took place for nuisance aquatic plants, Asian clams, warm water fish and crayfish with varying levels of successful removal. In 2009, a focused effort to remove Eurasian watermilfoil from Emerald Bay, a California Stat ...
Salvelinus fontinalis
... area, and stocking experiments have shown that it may survive and thrive in waters with a pH down to about 4.5 (Grande 1984). It may also grow faster and obtain a better condition and quality than the native brown trout (Salmo trutta) in acid lakes, a trait that has made it attractive for stocking i ...
... area, and stocking experiments have shown that it may survive and thrive in waters with a pH down to about 4.5 (Grande 1984). It may also grow faster and obtain a better condition and quality than the native brown trout (Salmo trutta) in acid lakes, a trait that has made it attractive for stocking i ...
Regeneration of Sponges in Ecological Context
... and flared portion, or which have a distinct cortex layer over the choanosome, appear to be less adept at regeneration. For example, Reiswig (1973) noted the inability of the large vase-shaped Caribbean reef species Mycale laxissima to reattach if its stalk snapped in a storm. Stalked forms and flat ...
... and flared portion, or which have a distinct cortex layer over the choanosome, appear to be less adept at regeneration. For example, Reiswig (1973) noted the inability of the large vase-shaped Caribbean reef species Mycale laxissima to reattach if its stalk snapped in a storm. Stalked forms and flat ...
The relative contributions of species richness and species
... should be more important in non-weeded than in controlled systems. We found support for the second hypothesis, but not for the first. On the contrary, the contribution of species richness became markedly more important few years after the start of the Jena Experiment. This result can be interpreted ...
... should be more important in non-weeded than in controlled systems. We found support for the second hypothesis, but not for the first. On the contrary, the contribution of species richness became markedly more important few years after the start of the Jena Experiment. This result can be interpreted ...
Journal of Experimental Marine Biology and Ecology
... invasions). Impacts could also be caused by attributes associated merely with its presence as any new organism added to the resident community; thus its impact may be derived through its density, size, fitness, or longevity (attributes that are relevant to measure for all invasions). In the first exam ...
... invasions). Impacts could also be caused by attributes associated merely with its presence as any new organism added to the resident community; thus its impact may be derived through its density, size, fitness, or longevity (attributes that are relevant to measure for all invasions). In the first exam ...
Biodiversity: an introduction - European Capitals of Biodiversity
... wish to refresh their knowledge; ...
... wish to refresh their knowledge; ...
Habitat destruction and metacommunity size in pen
... Metapopulation theory has been used to explain how sources and sinks allow species persistence in habitat fragments (e.g. Gonzalez et al. 1998; Mouquet & Loreau 2003). Similarly, habitat destruction involves the removal of a local community (or fragment, if the community is already fragmented) from ...
... Metapopulation theory has been used to explain how sources and sinks allow species persistence in habitat fragments (e.g. Gonzalez et al. 1998; Mouquet & Loreau 2003). Similarly, habitat destruction involves the removal of a local community (or fragment, if the community is already fragmented) from ...
Speciation in the dark: diversification and biogeography of the
... and Miocene epochs correspond to a period of major diversification of deep-sea fauna. We will test the prediction that, in deep-sea groups, speciation between Atlantic and Indo-Pacific lineages caused by the closure of the Tethyan Seaway is expected to pre-date the diversification times of shallow-w ...
... and Miocene epochs correspond to a period of major diversification of deep-sea fauna. We will test the prediction that, in deep-sea groups, speciation between Atlantic and Indo-Pacific lineages caused by the closure of the Tethyan Seaway is expected to pre-date the diversification times of shallow-w ...
Gauging the impact of fishing mortality on non
... of converting the total catch-at-length distribution (or its proxy) from a steady-state fishery into estimates of population size and fishing mortality at size. Properly, its use requires an estimate of the steady-state catch-atlength distribution of the total catch together with model parameters de ...
... of converting the total catch-at-length distribution (or its proxy) from a steady-state fishery into estimates of population size and fishing mortality at size. Properly, its use requires an estimate of the steady-state catch-atlength distribution of the total catch together with model parameters de ...
this PDF file
... concept in literature [1] however the most commonly used by most biologists is a group of organisms that are able to exchange genes within themselves but are reproductively isolated from other such groups. It means that there is no gene flow between two of such community [2]. They have separate ance ...
... concept in literature [1] however the most commonly used by most biologists is a group of organisms that are able to exchange genes within themselves but are reproductively isolated from other such groups. It means that there is no gene flow between two of such community [2]. They have separate ance ...
Introduced species
![](https://commons.wikimedia.org/wiki/Special:FilePath/Melilotus_alba_bgiu.jpg?width=300)
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.