Studies on rove beetles (Coleoptera: Staphylinidae) in Hungarian
... aphids, but also on other arthropods, rust fungi, and other fungi (Sunderland et al., 1987). When fungi were more abundant, Tachyporus spp. were also more abundant, although the rate of predation on aphids decreased (Dennis and Wratten, 1991). Other species such as Philonthus spp. feed on wide range ...
... aphids, but also on other arthropods, rust fungi, and other fungi (Sunderland et al., 1987). When fungi were more abundant, Tachyporus spp. were also more abundant, although the rate of predation on aphids decreased (Dennis and Wratten, 1991). Other species such as Philonthus spp. feed on wide range ...
Plant Invaders II - University of the District of Columbia
... learn more please visit us online: http://www.udc.edu/causes ...
... learn more please visit us online: http://www.udc.edu/causes ...
Lost Dogs, Last Birds, and Listed Species: Cultures of Extinction
... ten kinds of reptiles, ten kinds of birds, and ten kinds of mammals, mice among them, even though the species count may be identical. At the same time, species are not simply equal to one another from an ecological perspective: so-called keystone species occupy crucial positions in the food-web with ...
... ten kinds of reptiles, ten kinds of birds, and ten kinds of mammals, mice among them, even though the species count may be identical. At the same time, species are not simply equal to one another from an ecological perspective: so-called keystone species occupy crucial positions in the food-web with ...
Keystone Species
... Mother: The beaver (Castor canadensis) has tremendous influence on its habitat. They create extensive wetlands by damming streams, causing them to flood low-lying areas. By doing so, they create fertile open-water wetlands for their own use as well as for many other species that otherwise might not ...
... Mother: The beaver (Castor canadensis) has tremendous influence on its habitat. They create extensive wetlands by damming streams, causing them to flood low-lying areas. By doing so, they create fertile open-water wetlands for their own use as well as for many other species that otherwise might not ...
the spider fauna of the irrigated rice ecosystem in central kerala
... Thevara, Cochin-682 013, Kerala, India. E-mail: [email protected] M.J. Mathew: Division of Arachnology, Dept. of Zoology, Sacred Heart College, Thevara, Cochin-682 013, Kerala, India S. Pathummal Beevi: Dept. of Agricultural Entomology, Biological Control of Crop Pests & Weeds, College of Ho ...
... Thevara, Cochin-682 013, Kerala, India. E-mail: [email protected] M.J. Mathew: Division of Arachnology, Dept. of Zoology, Sacred Heart College, Thevara, Cochin-682 013, Kerala, India S. Pathummal Beevi: Dept. of Agricultural Entomology, Biological Control of Crop Pests & Weeds, College of Ho ...
Regional biogeography of shallow reef fish and macro
... partly for scientific interest and partly in response to a management need. All waters extending 40 miles offshore from an imaginary line joining the outer islands are regulated by the Ecuadorian Government for conservation of biodiversity within the Galapagos Marine Reserve (GMR). The GMR is regula ...
... partly for scientific interest and partly in response to a management need. All waters extending 40 miles offshore from an imaginary line joining the outer islands are regulated by the Ecuadorian Government for conservation of biodiversity within the Galapagos Marine Reserve (GMR). The GMR is regula ...
A comparison of invasive and non
... approach addresses both of these potential problems by comparing multiple invasive species to multiple, closely related native species (Maillet & Lopez-Garcia, 2000; Agrawal & Kotanen, 2003), though this has rarely been done. A third problem with invasive to native comparisons that is less widely re ...
... approach addresses both of these potential problems by comparing multiple invasive species to multiple, closely related native species (Maillet & Lopez-Garcia, 2000; Agrawal & Kotanen, 2003), though this has rarely been done. A third problem with invasive to native comparisons that is less widely re ...
Competition theory and the structure of ecological
... two species could be and still coexist stably. MacArthur and Levins' (1967) theory of limiting similarity attempted to provide a mathematical solution to this problem. Like many of the early theories of pairwise species interaction, this one was soon shown to be too sensitive to its mathematical ass ...
... two species could be and still coexist stably. MacArthur and Levins' (1967) theory of limiting similarity attempted to provide a mathematical solution to this problem. Like many of the early theories of pairwise species interaction, this one was soon shown to be too sensitive to its mathematical ass ...
Cytogenetic studies on Quercus L. (Fagaceae) species belonging to
... this species (YALTIRIK 1984). The results showed that both members of Cerris section were found to be very close according to Ic and A1 values. They were differentiated in regard of A2 as Q. ithaburensis had the highest value even all among studied species (Table 2). On the other hand, members of Il ...
... this species (YALTIRIK 1984). The results showed that both members of Cerris section were found to be very close according to Ic and A1 values. They were differentiated in regard of A2 as Q. ithaburensis had the highest value even all among studied species (Table 2). On the other hand, members of Il ...
Time Series Observations of Species Composition and Behavioral
... throughout their lifetime (Buston 2004). Other relationships are shorter-term and may change at time scales as small as seconds to minutes while still resulting in facilitated changes in predator avoidance and prey acquisition (e.g., Barber and Auster 2005, Auster et al. 2009). These relationships a ...
... throughout their lifetime (Buston 2004). Other relationships are shorter-term and may change at time scales as small as seconds to minutes while still resulting in facilitated changes in predator avoidance and prey acquisition (e.g., Barber and Auster 2005, Auster et al. 2009). These relationships a ...
DOC file - City of Fort Collins Public Records
... Ridge. It is highly probable that most of these species use Bobcat Ridge and adjacent areas as they have large home ranges. There are no known dens or other critical habitat features; however it is likely that some exist. Sensitive habitat such as these will surveyed to ensure protection of the site ...
... Ridge. It is highly probable that most of these species use Bobcat Ridge and adjacent areas as they have large home ranges. There are no known dens or other critical habitat features; however it is likely that some exist. Sensitive habitat such as these will surveyed to ensure protection of the site ...
SNA Project Report Pages 69-82 Summary of Ecological Results
... Right: Domestic cats and dogs are an added threat to weka, listed as nationally threatened and the last of our remarkable flightless native birds. North Marlborough is one of the last strongholds for these birds. ...
... Right: Domestic cats and dogs are an added threat to weka, listed as nationally threatened and the last of our remarkable flightless native birds. North Marlborough is one of the last strongholds for these birds. ...
THE POPULATION BIOLOGY OF INVASIVE SPECIES Ann K. Sakai
... fruits may also be good colonists. Phenotypic plasticity has often been cited as a life-history trait needed for colonization of new areas because colonists must be able to cope with a range of environmental conditions (Baker 1965, 1974, Gray 1986). Comparative and experimental studies of invasive s ...
... fruits may also be good colonists. Phenotypic plasticity has often been cited as a life-history trait needed for colonization of new areas because colonists must be able to cope with a range of environmental conditions (Baker 1965, 1974, Gray 1986). Comparative and experimental studies of invasive s ...
diversity, utilization of resources, and adaptive radiation in shallow
... the largest group within which all pairs of means differ significantly ( t tests : p < species show affinity according to the cri0.005 ) . terion of Fager and McGowan (1963). On Until this point I have used the simplest 19 subtidal reefs censuscd, 58 spccics oc- index-number of species-as the measur ...
... the largest group within which all pairs of means differ significantly ( t tests : p < species show affinity according to the cri0.005 ) . terion of Fager and McGowan (1963). On Until this point I have used the simplest 19 subtidal reefs censuscd, 58 spccics oc- index-number of species-as the measur ...
A Global Review of the Distribution, Taxonomy, and Impacts of
... by University of California - Santa Barabara on 11/27/07. For personal use only. ...
... by University of California - Santa Barabara on 11/27/07. For personal use only. ...
Parasite host-switching from the invasive American red
... The red-eared slider turtle, Trachemys scripta elegans, is among the most over-exploited animals and is still exported annually from the USA all over the world. Once introduced into its new environment, feral populations may arise and pose threats to local biodiversity and ecosystem functioning. In ...
... The red-eared slider turtle, Trachemys scripta elegans, is among the most over-exploited animals and is still exported annually from the USA all over the world. Once introduced into its new environment, feral populations may arise and pose threats to local biodiversity and ecosystem functioning. In ...
AP® BIOLOGY 2011 SCORING GUIDELINES (Form B)
... In part (a) the response earned 1 point for stating that the trees “have undergone less diversification” than the shrubs and ground flora. The response does not address animal species composition. The response earned the maximum of 4 points in part (b). Two points were earned for identifying two bio ...
... In part (a) the response earned 1 point for stating that the trees “have undergone less diversification” than the shrubs and ground flora. The response does not address animal species composition. The response earned the maximum of 4 points in part (b). Two points were earned for identifying two bio ...
paper - Jordi Bascompte
... species within a compartment tend to interact among themselves while showing much fewer trophic links with species from other compartments. This later property seems to be pervasive across ecological networks22–24 and has been suggested to increase their robustness through the buffering of perturbat ...
... species within a compartment tend to interact among themselves while showing much fewer trophic links with species from other compartments. This later property seems to be pervasive across ecological networks22–24 and has been suggested to increase their robustness through the buffering of perturbat ...
Large-scale processes and the Asian bias in species
... The comparable ¯oristic region in North America includes only two climate zones distributed in two large adjoining areas. The contemporary fragmentation of temperate forest in eastern Asia combined with ¯uctuations of climate and sea level could create conditions for generating diversity through all ...
... The comparable ¯oristic region in North America includes only two climate zones distributed in two large adjoining areas. The contemporary fragmentation of temperate forest in eastern Asia combined with ¯uctuations of climate and sea level could create conditions for generating diversity through all ...
Distribution/abundance relations in a New Zealand grassland
... Abstract: There are many examples in the literature of a positive correlation between the distribution of a species and its local abundance, i.e., widely occurring species tend to be more abundant locally when they do occur. Such relations have been documented over a wide range of taxa and spatial s ...
... Abstract: There are many examples in the literature of a positive correlation between the distribution of a species and its local abundance, i.e., widely occurring species tend to be more abundant locally when they do occur. Such relations have been documented over a wide range of taxa and spatial s ...
Springs and wire plants: anachronistic defences against
... reptiles (Gans 1969). The size of a food item cannot exceed the gape of the beak, so that long food items can only be swallowed by manipulating the long axis parallel with the throat (such as a heron swallowing a fish). Bond et al. (2004) identified five structural traits common to juvenile, but not ...
... reptiles (Gans 1969). The size of a food item cannot exceed the gape of the beak, so that long food items can only be swallowed by manipulating the long axis parallel with the throat (such as a heron swallowing a fish). Bond et al. (2004) identified five structural traits common to juvenile, but not ...
Section 2 notes
... An organism’s niche describes not only the environment where it lives, but how it interacts with biotic and abiotic factors in the environment. In other words, an organism’s niche includes not only the physical and biological aspects of its environment, but also the way in which the organism uses th ...
... An organism’s niche describes not only the environment where it lives, but how it interacts with biotic and abiotic factors in the environment. In other words, an organism’s niche includes not only the physical and biological aspects of its environment, but also the way in which the organism uses th ...
Patch Disturbance and the Human Niche by John M - Zoe-s-wiki
... species enter the community. Others are extirpated (ie-become locally extinct). Species which dominated a landscape at one time become minor components of the community while other species are "fruitful and multiply", becoming dominant species. This change is in some way directional and generally pr ...
... species enter the community. Others are extirpated (ie-become locally extinct). Species which dominated a landscape at one time become minor components of the community while other species are "fruitful and multiply", becoming dominant species. This change is in some way directional and generally pr ...
Weeds and the monitoring of biodiversity in Australian rangelands
... across boundaries between uncleared land and cleared land with either native (exotic species < 10% of total ground cover) or exotic (exotic species > 10% of total ground cover) pastures. The total number of native species was greater in uncleared land than in either native or exotic pastures on clea ...
... across boundaries between uncleared land and cleared land with either native (exotic species < 10% of total ground cover) or exotic (exotic species > 10% of total ground cover) pastures. The total number of native species was greater in uncleared land than in either native or exotic pastures on clea ...
plant functional markers capture ecosystem properties during
... The main aim of this study is to test the biomass ratio hypothesis for some components of carbon and nitrogen cycles in ecosystems: primary productivity, decomposition of leaf litter, and soil carbon and nitrogen stocks. The species traits selected therefore pertain to the processing of these resour ...
... The main aim of this study is to test the biomass ratio hypothesis for some components of carbon and nitrogen cycles in ecosystems: primary productivity, decomposition of leaf litter, and soil carbon and nitrogen stocks. The species traits selected therefore pertain to the processing of these resour ...
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.