Do ectotherms partition thermal resources? We still do not know
... temperatures) and live on tree trunks where they defend small territories. Species A occupies a forest patch that is subsequently invaded by species B that is slightly larger and thus dominant in competitive interactions. Following the invasion by species B and in response to strong interspecific co ...
... temperatures) and live on tree trunks where they defend small territories. Species A occupies a forest patch that is subsequently invaded by species B that is slightly larger and thus dominant in competitive interactions. Following the invasion by species B and in response to strong interspecific co ...
More than a meal integrating nonfeeding interactions into food webs
... information provides some general examples for these functions func, but their exact shape will depend on the biology of the species. For trophic interactions, three types of functional responses have been defined (Holling 1959) – similar functions may be defined for nontrophic interactions but requ ...
... information provides some general examples for these functions func, but their exact shape will depend on the biology of the species. For trophic interactions, three types of functional responses have been defined (Holling 1959) – similar functions may be defined for nontrophic interactions but requ ...
More than a meal integrating nonfeeding interactions into food webs
... information provides some general examples for these functions func, but their exact shape will depend on the biology of the species. For trophic interactions, three types of functional responses have been defined (Holling 1959) – similar functions may be defined for nontrophic interactions but requ ...
... information provides some general examples for these functions func, but their exact shape will depend on the biology of the species. For trophic interactions, three types of functional responses have been defined (Holling 1959) – similar functions may be defined for nontrophic interactions but requ ...
Common Name: ETOWAH CRAYFISH Scientific Name: Cambarus
... mother, but stay close and will hold on to her for some time. Eventually they move off on their own. Crayfishes molt 6 or 7 times during their first year of life and most are probably able to reproduce by the end of that year. They molt once or twice a year for the remainder of their lives and live ...
... mother, but stay close and will hold on to her for some time. Eventually they move off on their own. Crayfishes molt 6 or 7 times during their first year of life and most are probably able to reproduce by the end of that year. They molt once or twice a year for the remainder of their lives and live ...
Where less may be more: how the rare biosphere pulls
... geographical spread (Rabinowitz, 1981). These concepts are routinely applied to plants and animals, and can be easily transferred to microbial communities. Local abundance is the easiest and the most common index used to quantify species’ rarity in microbial ecology. However, microbial rarity may al ...
... geographical spread (Rabinowitz, 1981). These concepts are routinely applied to plants and animals, and can be easily transferred to microbial communities. Local abundance is the easiest and the most common index used to quantify species’ rarity in microbial ecology. However, microbial rarity may al ...
EU NON-NATIVE SPECIES RISK ANALYSIS – RISK ASSESSMENT
... Austria (Van Dijk, et al, 2013). Romania (Dimancea, N., 2013), Hungary (Puky et. Al, 2004), Croatia (Lukac et al, 2015), Bulgaria (Mollov et al, 2013) , Slovakia (Ficetola et al, 2012), Czech (Brejcha et al, 2009). The Global Invasive Species Database (2009) lists it as a pest in France, Germany, La ...
... Austria (Van Dijk, et al, 2013). Romania (Dimancea, N., 2013), Hungary (Puky et. Al, 2004), Croatia (Lukac et al, 2015), Bulgaria (Mollov et al, 2013) , Slovakia (Ficetola et al, 2012), Czech (Brejcha et al, 2009). The Global Invasive Species Database (2009) lists it as a pest in France, Germany, La ...
Wildlife Management Practices (WMPs)
... • Protect habitat for declining, threatened, or endangered wildlife species. • Maintain corridors for migrating wildlife. • Protect water quality, especially if riparian areas are included or if watersheds are protected. ...
... • Protect habitat for declining, threatened, or endangered wildlife species. • Maintain corridors for migrating wildlife. • Protect water quality, especially if riparian areas are included or if watersheds are protected. ...
Instructions for the Preparation of COSEWIC Status
... sent to the SSC Co-chair and forwarded to the writer with instructions from the Co-chair for changes that must be incorporated into the report. ...
... sent to the SSC Co-chair and forwarded to the writer with instructions from the Co-chair for changes that must be incorporated into the report. ...
Ecosystems - Oxford University Press
... more than just one type of food. Diversity in food sources ensures that if one food source becomes scarce, the organism can eat something else. This means a species may be part of many food chains at the same time. These multiple food chains can be linked together in a food web to represent the feed ...
... more than just one type of food. Diversity in food sources ensures that if one food source becomes scarce, the organism can eat something else. This means a species may be part of many food chains at the same time. These multiple food chains can be linked together in a food web to represent the feed ...
Branches in the lines of descent: Charles
... partake of the same advantages which made their parent successful in life, they will generally go on multiplying in number as well as diverging in character: this is represented in the diagram by the several divergent branches proceeding from (A). The modified offspring from the later and more highl ...
... partake of the same advantages which made their parent successful in life, they will generally go on multiplying in number as well as diverging in character: this is represented in the diagram by the several divergent branches proceeding from (A). The modified offspring from the later and more highl ...
Great Basin Fact Sheet No. 1: Putting Resilience and Resistance
... fundamental structure, processes, and functioning (or remain largely unchanged) despite stressors, disturbances, or invasive species. Resistance to invasion is particularly important in Great Basin ecosystems and is a function of the attributes of ecosystems that limit invading species. ...
... fundamental structure, processes, and functioning (or remain largely unchanged) despite stressors, disturbances, or invasive species. Resistance to invasion is particularly important in Great Basin ecosystems and is a function of the attributes of ecosystems that limit invading species. ...
Synthesis of Conservation Plans and Strategies for
... ASSETS: What are we trying to conserve? .................................................. 10 Methodology for Identifying Assets................................................................................................................... 10 ...
... ASSETS: What are we trying to conserve? .................................................. 10 Methodology for Identifying Assets................................................................................................................... 10 ...
Maureen McClung - Biology Department | UNC Chapel Hill
... to be some limits to similarity in coexisting competitors. Second, these limits suggest more than just differences in species, but also the variability within them, the nature of the resource and utilization curves, etc. (Begon et al 2006). Currently, the most common definition of “niche” coincides ...
... to be some limits to similarity in coexisting competitors. Second, these limits suggest more than just differences in species, but also the variability within them, the nature of the resource and utilization curves, etc. (Begon et al 2006). Currently, the most common definition of “niche” coincides ...
Functional diversity within a morphologically conservative genus of
... in growth rate and, hence, metabolic demand. Using the criterion of relative yield total, again, only a single pair could roughly be judged equivalent, however, members of this alternative species pair were dramatically different in their effects on larval anurans. Thus, as previously shown for a mo ...
... in growth rate and, hence, metabolic demand. Using the criterion of relative yield total, again, only a single pair could roughly be judged equivalent, however, members of this alternative species pair were dramatically different in their effects on larval anurans. Thus, as previously shown for a mo ...
Invasions and Extinctions Reshape Coastal
... potentially due to taxonomic uncertainty or difficulty of detecting extinctions in these poorly known groups. We therefore excluded them from our analysis. We also limited our analysis to species that occurred in marine or estuarine environments. The data for each extinction and invasion list are pr ...
... potentially due to taxonomic uncertainty or difficulty of detecting extinctions in these poorly known groups. We therefore excluded them from our analysis. We also limited our analysis to species that occurred in marine or estuarine environments. The data for each extinction and invasion list are pr ...
Niche theory and guilds
... phoeniceus) and Yellow-headed Blackbirds (Xanthocephalus xanthocephalus) “ecological release” – mongoose example ...
... phoeniceus) and Yellow-headed Blackbirds (Xanthocephalus xanthocephalus) “ecological release” – mongoose example ...
Maureen McClung - Biology Department | UNC Chapel Hill
... to be some limits to similarity in coexisting competitors. Second, these limits suggest more than just differences in species, but also the variability within them, the nature of the resource and utilization curves, etc. (Begon et al 2006). Currently, the most common definition of “niche” coincides ...
... to be some limits to similarity in coexisting competitors. Second, these limits suggest more than just differences in species, but also the variability within them, the nature of the resource and utilization curves, etc. (Begon et al 2006). Currently, the most common definition of “niche” coincides ...
Effects of invasive Pacific red lionfish Pterois volitans
... terms of loss of native species and disruption of ecosystems, have resulted from the introduction of non-native predatory freshwater fishes (e.g., OgutuOhwayo 1990; Thomas 1993; Jackson 2002; Pyke 2008). Introductions of non-native predatory diadromous fishes have also resulted in invasions that hav ...
... terms of loss of native species and disruption of ecosystems, have resulted from the introduction of non-native predatory freshwater fishes (e.g., OgutuOhwayo 1990; Thomas 1993; Jackson 2002; Pyke 2008). Introductions of non-native predatory diadromous fishes have also resulted in invasions that hav ...
Effects of invasive Pacific red lionfish Pterois volitans
... terms of loss of native species and disruption of ecosystems, have resulted from the introduction of non-native predatory freshwater fishes (e.g., OgutuOhwayo 1990; Thomas 1993; Jackson 2002; Pyke 2008). Introductions of non-native predatory diadromous fishes have also resulted in invasions that hav ...
... terms of loss of native species and disruption of ecosystems, have resulted from the introduction of non-native predatory freshwater fishes (e.g., OgutuOhwayo 1990; Thomas 1993; Jackson 2002; Pyke 2008). Introductions of non-native predatory diadromous fishes have also resulted in invasions that hav ...
Invasive Alien Species Fact Sheet – Dreissena polymorpha
... Minchin et al. 2002). It is now found throughout most of Europe and extending east into the western Asia and south into Turkey and Ireland in west (Mackie et al. 1989). It is largely unclear how the initial expansion from the Black Sea and Aralo-Caspian Sea took place. D. polymorpha may have penetr ...
... Minchin et al. 2002). It is now found throughout most of Europe and extending east into the western Asia and south into Turkey and Ireland in west (Mackie et al. 1989). It is largely unclear how the initial expansion from the Black Sea and Aralo-Caspian Sea took place. D. polymorpha may have penetr ...
African Herp News 58, December 2012
... Ethiopian endemic genus Paracassina, the genus Leptopelis (with six species) is still included, although southern African authors now assign this genus to the family Arthroleptidae. In the Microhylidae, the authors reject the proposal of Dubois (1989) that Phrynomerus be united with Phrynomantis of ...
... Ethiopian endemic genus Paracassina, the genus Leptopelis (with six species) is still included, although southern African authors now assign this genus to the family Arthroleptidae. In the Microhylidae, the authors reject the proposal of Dubois (1989) that Phrynomerus be united with Phrynomantis of ...
Disentangling direct and indirect effects of experimental grassland
... Background: Plant biodiversity can affect trophic interactions in many ways, including direct bottom-up effects on insects, but is negatively affected by agricultural intensification. Grassland intensification promotes plant productivity, resulting in changes in plant community composition, and impa ...
... Background: Plant biodiversity can affect trophic interactions in many ways, including direct bottom-up effects on insects, but is negatively affected by agricultural intensification. Grassland intensification promotes plant productivity, resulting in changes in plant community composition, and impa ...
The diversity–stability debate
... fairly regular waxing and waning of a population’s density). Such background population variability, whether driven by biotic or abiotic processes, can provide species with the opportunity to respond differentially to their environment. In turn, these differential species responses weaken the destru ...
... fairly regular waxing and waning of a population’s density). Such background population variability, whether driven by biotic or abiotic processes, can provide species with the opportunity to respond differentially to their environment. In turn, these differential species responses weaken the destru ...
CHANGES IN ARTHROPOD ABUNDANCE AND DIVERSITY WITH
... 1999; Goman & Wells 2000; Saltonstall 2002). Increases in dominance and distribution of these native plants can result in changes in vegetation structure and composition similar to those created by non-native plants (Slobodchikoff & Doyen 1977; French & Major 2001; Herrera & Dudley 2003; Cuda et al. ...
... 1999; Goman & Wells 2000; Saltonstall 2002). Increases in dominance and distribution of these native plants can result in changes in vegetation structure and composition similar to those created by non-native plants (Slobodchikoff & Doyen 1977; French & Major 2001; Herrera & Dudley 2003; Cuda et al. ...
Introduced species
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.