![Reiskind, M.H. and M.L. Wilson. 2008. Interspecific](http://s1.studyres.com/store/data/015260477_1-bd320077432406801a0132fa016a8ad1-300x300.png)
Reiskind, M.H. and M.L. Wilson. 2008. Interspecific
... albopictus was the superior competitor in these studies as well. However, several studies and Þeld observations suggest the competitive outcome does not necessarily lead to competitive displacement and may result in coexistence (Black et al. 1989, Livdahl and Willey 1991, OÕMeara et al. 1995, Edgerl ...
... albopictus was the superior competitor in these studies as well. However, several studies and Þeld observations suggest the competitive outcome does not necessarily lead to competitive displacement and may result in coexistence (Black et al. 1989, Livdahl and Willey 1991, OÕMeara et al. 1995, Edgerl ...
View plan for Opaelua Lower Management Unit
... Scattered immature individuals along streamlets in the middle of the MU, mostly in OpaeulaLower-03 Scattered throughout the MU. Widespread along the Poamoho road, this taxa has bird-dispersed fruit. It can form dense stands, and has flexible habitat requirements. It is a priority for control wheneve ...
... Scattered immature individuals along streamlets in the middle of the MU, mostly in OpaeulaLower-03 Scattered throughout the MU. Widespread along the Poamoho road, this taxa has bird-dispersed fruit. It can form dense stands, and has flexible habitat requirements. It is a priority for control wheneve ...
Invasion Ecology of Acer platanoides in an Old
... potential that has been described as a prolific seed producer, shade tolerant, and a strong competitor for limiting resources. It has invaded many forests in the northeastern United States and Canada, including the Washington Grove, a 10 ha forest in Cobbs Hill Park in Rochester, NY. To quantify the ...
... potential that has been described as a prolific seed producer, shade tolerant, and a strong competitor for limiting resources. It has invaded many forests in the northeastern United States and Canada, including the Washington Grove, a 10 ha forest in Cobbs Hill Park in Rochester, NY. To quantify the ...
Bee diversity effects on pollination depend on functional
... al. 2008). Most of these studies suggest a positive effect of bee species diversity on pollination, but this has still not been confirmed experimentally. There is only a single published experiment on diversity effects on pollination (Fontaine et al. 2006), which did not separate effects of diversity ...
... al. 2008). Most of these studies suggest a positive effect of bee species diversity on pollination, but this has still not been confirmed experimentally. There is only a single published experiment on diversity effects on pollination (Fontaine et al. 2006), which did not separate effects of diversity ...
Use of Riparian Corridors and Vineyards by Mammalian Predators
... nocturnal. For cameras that did not have a timing option, we included only photos from dusk to dawn in the data set. Riparian and vineyard cameras were placed approximately 0.3 m off the ground and at least 45 m apart. We checked them approximately every 5 days to minimize disturbance but allow prom ...
... nocturnal. For cameras that did not have a timing option, we included only photos from dusk to dawn in the data set. Riparian and vineyard cameras were placed approximately 0.3 m off the ground and at least 45 m apart. We checked them approximately every 5 days to minimize disturbance but allow prom ...
Quantifying and interpreting functional diversity of natural communities
... combination of a set of specifically selected traits, such as those that incorporate different ecological strategies (e.g. Grime 2001, Westoby 1998) or ad hoc defined response groups. The characterization of functional diversity in terms of several traits could be applied also when we know that vari ...
... combination of a set of specifically selected traits, such as those that incorporate different ecological strategies (e.g. Grime 2001, Westoby 1998) or ad hoc defined response groups. The characterization of functional diversity in terms of several traits could be applied also when we know that vari ...
original version of Chapter 5
... To demonstrate assembly rules, we have to compare an observed pattern with that expected under a null model. These are often difficult to frame. What does a plant community look like ...
... To demonstrate assembly rules, we have to compare an observed pattern with that expected under a null model. These are often difficult to frame. What does a plant community look like ...
An Invasive Species Reduces Aquatic Insect Flux to Terrestrial Food
... with the exception of the control with no fish. We did not include a least chub/mosquitofish treatment, because all evidence suggests that mosquitofish will drive least chub to extinction at local scales (Bailey et al. 2005, Priddis et al. 2009). Thus, this is not a stable interaction that can be fo ...
... with the exception of the control with no fish. We did not include a least chub/mosquitofish treatment, because all evidence suggests that mosquitofish will drive least chub to extinction at local scales (Bailey et al. 2005, Priddis et al. 2009). Thus, this is not a stable interaction that can be fo ...
Eutrophication causes speciation reversal in whitefish adaptive
... radiations, the magnitude of eutrophication explains the pattern of species loss and levels of genetic and functional distinctiveness among remaining species. We argue that extinction by speciation reversal may be more widespread than currently appreciated. Preventing such extinctions will require t ...
... radiations, the magnitude of eutrophication explains the pattern of species loss and levels of genetic and functional distinctiveness among remaining species. We argue that extinction by speciation reversal may be more widespread than currently appreciated. Preventing such extinctions will require t ...
Resource partitioning and overlap in three sympatric species of Ips
... conspecific signals). However, we know from previous sampling at the same sites that Ips captures in unbaited traps are very rare (9 captures of I. pini in unbaited traps vs. 1289 captures in paired traps baited with racemic ipsdienol; Herms et al. 1991). So, for the purposes of calculating R in the ...
... conspecific signals). However, we know from previous sampling at the same sites that Ips captures in unbaited traps are very rare (9 captures of I. pini in unbaited traps vs. 1289 captures in paired traps baited with racemic ipsdienol; Herms et al. 1991). So, for the purposes of calculating R in the ...
Biotic Interactions, Structure, and Long
... biomes (reviewed by Wisz et al. 2012). If we look how variation is distributed among different scales, in general, the result depends on the system studied. However, the smallscale variation is common, and sometimes even considered as a fundamental property of marine benthic assemblages with a very ...
... biomes (reviewed by Wisz et al. 2012). If we look how variation is distributed among different scales, in general, the result depends on the system studied. However, the smallscale variation is common, and sometimes even considered as a fundamental property of marine benthic assemblages with a very ...
Crassostrea gigas - Pacific oyster UK NON
... population of the organism will not prevent establishment? 1.29 How often has the organism entered and established in new areas outside its original range as a result of man’s activities? 1.30 How likely is it that the organism could survive eradication campaigns in the Risk Assessment area? 1.31 Ev ...
... population of the organism will not prevent establishment? 1.29 How often has the organism entered and established in new areas outside its original range as a result of man’s activities? 1.30 How likely is it that the organism could survive eradication campaigns in the Risk Assessment area? 1.31 Ev ...
A preliminary biological survey of Cerro Piedra Larga, Oaxaca, Mexico
... two in pine-oak forest; only the turtle Rhinoclemmys rubida was detected solely in the ecotone. Many species were found on Cerro Piedra Larga only within limited elevational ranges (Table 3, Fig. 5). For example, the lizards Sceloporus formosus and S. grammicus were found in pine-oak forest, but onl ...
... two in pine-oak forest; only the turtle Rhinoclemmys rubida was detected solely in the ecotone. Many species were found on Cerro Piedra Larga only within limited elevational ranges (Table 3, Fig. 5). For example, the lizards Sceloporus formosus and S. grammicus were found in pine-oak forest, but onl ...
TERRESTRIAL SPECIES Grand Cayman Blue iguana Cyclura
... The Recovery Programme currently employs three full-time staff (two salaried), and delivers ca. 100 hatchlings per year. Directed by Fred Burton, the programme is assisted by a consortium of local and international specialists. Management strategy is implemented through a Species Recovery Plan, upda ...
... The Recovery Programme currently employs three full-time staff (two salaried), and delivers ca. 100 hatchlings per year. Directed by Fred Burton, the programme is assisted by a consortium of local and international specialists. Management strategy is implemented through a Species Recovery Plan, upda ...
effects of grazer richness and composition on algal biomass in a
... grazer biomass (rather than abundance) was standardized across all treatments. Snail biomass was standardized equivalent to 100 individuals of L. littorea/m2 (4.3 mg dry mass) and crustacean biomass equivalent to 50 L. littorea/m2 (2.2 mg dry mass; crustaceans are much less abundant in the field, in ...
... grazer biomass (rather than abundance) was standardized across all treatments. Snail biomass was standardized equivalent to 100 individuals of L. littorea/m2 (4.3 mg dry mass) and crustacean biomass equivalent to 50 L. littorea/m2 (2.2 mg dry mass; crustaceans are much less abundant in the field, in ...
Below-ground resources limit seedling growth in forest understories
... varying widely in shade tolerance to an increase in soil resources in shaded forest understories in northern Wisconsin, USA. In a 4-year experiment, trenching treatment was used to increase soil resource supply to 1-year old seedlings planted across a range of low light microenvironments. Specifical ...
... varying widely in shade tolerance to an increase in soil resources in shaded forest understories in northern Wisconsin, USA. In a 4-year experiment, trenching treatment was used to increase soil resource supply to 1-year old seedlings planted across a range of low light microenvironments. Specifical ...
Information about GB Non-native Species Risk Assessments
... wildlife species and humans (raccoons have been identified as the major wildlife host of rabies in the United States); can cause damage to fields and garden crops (e.g. corn)(Conovery 1987, Beasley et al. 2008); and cause damage or nuisance problems around houses. In their introduced range (Japan), ...
... wildlife species and humans (raccoons have been identified as the major wildlife host of rabies in the United States); can cause damage to fields and garden crops (e.g. corn)(Conovery 1987, Beasley et al. 2008); and cause damage or nuisance problems around houses. In their introduced range (Japan), ...
The Linkage between Conservation Strategies for Large Carnivores
... infields (Bruteig et al. 2003). Many species of plant, fungi, and insects, for example, depend on the grazing pressure to keep the landscape open and suppress tree and shrub growth, or on the hay meadows that have a net nutrient loss (Smallidge and Leopold 1997; Moen et al. 1999). For example, in No ...
... infields (Bruteig et al. 2003). Many species of plant, fungi, and insects, for example, depend on the grazing pressure to keep the landscape open and suppress tree and shrub growth, or on the hay meadows that have a net nutrient loss (Smallidge and Leopold 1997; Moen et al. 1999). For example, in No ...
44KB - NZQA
... flows in the aquatic ecosystem; patterns in phytoplankton abundance and how they relate to aquaculture; interactions between organisms and how they relate to aquaculture; tides and tidal patterns and how they relate to aquaculture; zonation in the aquatic environment and how it relates to aquacultur ...
... flows in the aquatic ecosystem; patterns in phytoplankton abundance and how they relate to aquaculture; interactions between organisms and how they relate to aquaculture; tides and tidal patterns and how they relate to aquaculture; zonation in the aquatic environment and how it relates to aquacultur ...
- Wiley Online Library
... 3. During the colonization of new patches, most species were facilitated or inhibited by several others. These opposite effects can potentially have a large effect on species abundances, but they were correlated and cancelled out at the community level. Nevertheless, competition during colonization ...
... 3. During the colonization of new patches, most species were facilitated or inhibited by several others. These opposite effects can potentially have a large effect on species abundances, but they were correlated and cancelled out at the community level. Nevertheless, competition during colonization ...
Mt Gibson Endangered Wildlife Restoration Project
... Feral animals have been a primary cause of the disappearance of mammals in the wheatbelt region. Accordingly, our operational strategy at Mt Gibson must ensure reintroduced mammals are not exposed to significant predation from foxes and cats or competition from feral herbivores such as rabbits and g ...
... Feral animals have been a primary cause of the disappearance of mammals in the wheatbelt region. Accordingly, our operational strategy at Mt Gibson must ensure reintroduced mammals are not exposed to significant predation from foxes and cats or competition from feral herbivores such as rabbits and g ...
Is a healthy ecosystem one that is rich in parasites?
... Although there is substantial information about the role of parasitoids in food webs [41], there are fewer data and fewer insights into to the role of parasites, and only recently have fairly complete lists of parasite species been added to empirical food webs. Some obvious effects of incorporating ...
... Although there is substantial information about the role of parasitoids in food webs [41], there are fewer data and fewer insights into to the role of parasites, and only recently have fairly complete lists of parasite species been added to empirical food webs. Some obvious effects of incorporating ...
PDF - Oxford Academic - Oxford University Press
... Pleistocene predators revealed high numbers of teeth broken in life, suggesting that carcass utilization and, consequently, food competition was more intense in the past than at present. However, the putative association between diet and tooth fracture frequency was based on a small sample of large, ...
... Pleistocene predators revealed high numbers of teeth broken in life, suggesting that carcass utilization and, consequently, food competition was more intense in the past than at present. However, the putative association between diet and tooth fracture frequency was based on a small sample of large, ...
Describe the principles of aquatic ecology and relate to aquaculture
... flows in the aquatic ecosystem; patterns in phytoplankton abundance and how they relate to aquaculture; interactions between organisms and how they relate to aquaculture; tides and tidal patterns and how they relate to aquaculture; zonation in the aquatic environment and how it relates to aquacultur ...
... flows in the aquatic ecosystem; patterns in phytoplankton abundance and how they relate to aquaculture; interactions between organisms and how they relate to aquaculture; tides and tidal patterns and how they relate to aquaculture; zonation in the aquatic environment and how it relates to aquacultur ...
Vascular plants in modern agricultural landscapes of SE Norway
... Consequently, this polarisation process may lead to a less complex landscape structure. It is assumed that the simplification may reduce biodiversity at all levels (ecosystem, community, species, population and genes). Such biological changes may have wideranging consequences, the nature and extent ...
... Consequently, this polarisation process may lead to a less complex landscape structure. It is assumed that the simplification may reduce biodiversity at all levels (ecosystem, community, species, population and genes). Such biological changes may have wideranging consequences, the nature and extent ...
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.