Competitive avoidance not edaphic specialization drives vertical
... may play a central role in promoting competitive coexistence among these species. Environmental heterogeneity has long been considered a key factor in the maintenance of diversity in ecological communities (Hutchinson, 1959), particularly for species with high overlap in fundamental niche space (Beg ...
... may play a central role in promoting competitive coexistence among these species. Environmental heterogeneity has long been considered a key factor in the maintenance of diversity in ecological communities (Hutchinson, 1959), particularly for species with high overlap in fundamental niche space (Beg ...
Biogeography of copepods in lakes and ponds
... We aimed to determine whether the copepod assemblages in lakes and ponds of northern Québec, Canada, were closer in composition to those found in southern Québec, or to those reported from the subarctic and arctic. Six calanoid and five cyclopoid species were identified from 37 ponds and lakes locat ...
... We aimed to determine whether the copepod assemblages in lakes and ponds of northern Québec, Canada, were closer in composition to those found in southern Québec, or to those reported from the subarctic and arctic. Six calanoid and five cyclopoid species were identified from 37 ponds and lakes locat ...
An ordination study to view vegetation structure dynamics in
... majority of the ordinations (87%), those based on matrices with abundance data (0–4) had better explanatory power than those based on presence-absence values only. The exclusion of juveniles from the input matrices, explored in the research phase, did not alter the explanatory power of the ordinatio ...
... majority of the ordinations (87%), those based on matrices with abundance data (0–4) had better explanatory power than those based on presence-absence values only. The exclusion of juveniles from the input matrices, explored in the research phase, did not alter the explanatory power of the ordinatio ...
A metaanalysis of biotic resistance to exotic plant invasions
... Senecio) survival in our experiment was highest on disturbed, ungrazed ground. It is much more remarkable that plants were also able to survive under high competition in mature grassland vegetation.Õ Although resident plants may have repelled invaders not observed in the various communities of Table ...
... Senecio) survival in our experiment was highest on disturbed, ungrazed ground. It is much more remarkable that plants were also able to survive under high competition in mature grassland vegetation.Õ Although resident plants may have repelled invaders not observed in the various communities of Table ...
The Tall grass Prairie in Illinois
... such as bison, elk, deer, rabbits, and grasshoppers. This grazing was an integral part of the prairie ecosystem, and therefore grasslands and ungulate mammals coevolved together. Grazing increased growth in prairies, recycles nitrogen through urine and feces, and the trampling opens up habitat for p ...
... such as bison, elk, deer, rabbits, and grasshoppers. This grazing was an integral part of the prairie ecosystem, and therefore grasslands and ungulate mammals coevolved together. Grazing increased growth in prairies, recycles nitrogen through urine and feces, and the trampling opens up habitat for p ...
A meta-analysis of biotic resistance to exotic plant invasions
... Senecio) survival in our experiment was highest on disturbed, ungrazed ground. It is much more remarkable that plants were also able to survive under high competition in mature grassland vegetation.Õ Although resident plants may have repelled invaders not observed in the various communities of Table ...
... Senecio) survival in our experiment was highest on disturbed, ungrazed ground. It is much more remarkable that plants were also able to survive under high competition in mature grassland vegetation.Õ Although resident plants may have repelled invaders not observed in the various communities of Table ...
Wildlife tourism in Kashmir: A case study of Dachigam national park
... Tourism is the oldest major industry of the J&K state, with powerful potential owning to the celebrated valley of Kashmir, enchanting sites of Jammu region and tourism novelty of Ladakh. Apart from the well-known temples and shrines Jammu & Kashmir State is fortunate to have a number of magnificent ...
... Tourism is the oldest major industry of the J&K state, with powerful potential owning to the celebrated valley of Kashmir, enchanting sites of Jammu region and tourism novelty of Ladakh. Apart from the well-known temples and shrines Jammu & Kashmir State is fortunate to have a number of magnificent ...
Population Dynamics of Protozoa Associated with the Decay of
... Institute of Agricultural Zoology, University of Bonn, Bonn, West Germany SYNOPSIS. The high intensity of decomposition in heavily polluted systems favors high individual counts of certain species of cilate Protozoa, in spite of the lack of dissolved oxygen and the presence of ammonia and other prod ...
... Institute of Agricultural Zoology, University of Bonn, Bonn, West Germany SYNOPSIS. The high intensity of decomposition in heavily polluted systems favors high individual counts of certain species of cilate Protozoa, in spite of the lack of dissolved oxygen and the presence of ammonia and other prod ...
Seed germination traits of two plant functional
... secondary salinization due to their generally lower elevation, which are exposed to saline groundwater (Jolly et al. 2008). Nevertheless, a wide range of plant species, growing naturally on the coastal saline areas, can survive high salinity that is ...
... secondary salinization due to their generally lower elevation, which are exposed to saline groundwater (Jolly et al. 2008). Nevertheless, a wide range of plant species, growing naturally on the coastal saline areas, can survive high salinity that is ...
3-1 Review of general section and summaries of monitoring
... In 2007 the Baltic Sea Action Plan (BSAP) was adopted which meant to put in to practice the ecosystem approach to the management of human activities. The BSAP further emphasizes the need to monitor and assess the change in the marine environment and progress towards the visions, goals and objectives ...
... In 2007 the Baltic Sea Action Plan (BSAP) was adopted which meant to put in to practice the ecosystem approach to the management of human activities. The BSAP further emphasizes the need to monitor and assess the change in the marine environment and progress towards the visions, goals and objectives ...
Notes on Fauna near Beachcomber
... listed only as Priority by DEC, or that are included in publications such as Garnett and Crowley (2000) and Cogger et al. (1993) but not in State or Commonwealth Acts, are also of recognised conservation significance. In addition, species that are at the limit of their distribution, those that have ...
... listed only as Priority by DEC, or that are included in publications such as Garnett and Crowley (2000) and Cogger et al. (1993) but not in State or Commonwealth Acts, are also of recognised conservation significance. In addition, species that are at the limit of their distribution, those that have ...
Towards a mechanistic understanding of fish species niche
... Environmental niche modeling offers a quantitative and objective means to identify environmental associations of species (Guisan and Thuiller 2005) and compare environmental niche differences among species (Kozak et al. 2008). The recent development of broad scale environv www.esajournals.org ...
... Environmental niche modeling offers a quantitative and objective means to identify environmental associations of species (Guisan and Thuiller 2005) and compare environmental niche differences among species (Kozak et al. 2008). The recent development of broad scale environv www.esajournals.org ...
Does increased habitat complexity reduce predation and
... Habitats with high structural complexity typically support more species and individuals than nearby less complex habitats (Bell et al. 1991). One mechanism proposed to explain this general pattern is that high structural complexity reduces competition and predation (Holt 1987, Hixon and Menge 1991). ...
... Habitats with high structural complexity typically support more species and individuals than nearby less complex habitats (Bell et al. 1991). One mechanism proposed to explain this general pattern is that high structural complexity reduces competition and predation (Holt 1987, Hixon and Menge 1991). ...
A hierarchical framework to investigate epiphyte assemblages
... this case, species replace one another in their interactions with the other player in the interaction (Diamond 1975, Gotelli and Graves 1993). Finally, compositional patterns in species interactions can also be consistent with randomized expectations generated by null models, and are then referred t ...
... this case, species replace one another in their interactions with the other player in the interaction (Diamond 1975, Gotelli and Graves 1993). Finally, compositional patterns in species interactions can also be consistent with randomized expectations generated by null models, and are then referred t ...
Chemicals in Host-Parasitoid and Prey-Predator Relations
... Semiochemicals such as kairomones and synomones are involved in the process of host and prey location, acting as an important factor in the behavior of the searching predators and parasitoids. When hosts and prey are crop pests, they may be exposed to pesticides to reduce their populations. Often th ...
... Semiochemicals such as kairomones and synomones are involved in the process of host and prey location, acting as an important factor in the behavior of the searching predators and parasitoids. When hosts and prey are crop pests, they may be exposed to pesticides to reduce their populations. Often th ...
Biological resources conservation through
... Kuwait lies on the northern tip of the Arabian Gulf, between latitudes 283 30 and 303 06 N, and between 463 30 and 483 30 E. Kuwait northern borders are shared with Iraq and the Arabian Gulf and Iran border it from the east, while the Kingdom of Saudi Arabia borders Kuwait from the south and sou ...
... Kuwait lies on the northern tip of the Arabian Gulf, between latitudes 283 30 and 303 06 N, and between 463 30 and 483 30 E. Kuwait northern borders are shared with Iraq and the Arabian Gulf and Iran border it from the east, while the Kingdom of Saudi Arabia borders Kuwait from the south and sou ...
microbial diversity and global environmental issues
... sent overall diversity (Fjeldsa, 2000; Williams and Humphries, 1996). Species “weighting” can also be used as a shortcut to arrive at a quantitative estimate of changing diversity in microbial communities where only a fraction of existing species have been characterized. For example, the presence an ...
... sent overall diversity (Fjeldsa, 2000; Williams and Humphries, 1996). Species “weighting” can also be used as a shortcut to arrive at a quantitative estimate of changing diversity in microbial communities where only a fraction of existing species have been characterized. For example, the presence an ...
Sources of mortality and associated life-cycle traits of
... The purpose of this review is to summarise the available information on the responses of selected benthic species to natural and anthropogenic influences, amongst which the effects of fishing activities are of particular current interest, in relation to assessments of the quality status of the North ...
... The purpose of this review is to summarise the available information on the responses of selected benthic species to natural and anthropogenic influences, amongst which the effects of fishing activities are of particular current interest, in relation to assessments of the quality status of the North ...
Mechanisms of UV radiation tolerance displayed
... Stream systems additionally may have a canopy cover that intercepts a portion of the incoming UVR. While this second layer is not generally important in larger lake systems, the UV environment in low-order streams can be highly dependent on this variable characteristic. The impact of canopy cover on ...
... Stream systems additionally may have a canopy cover that intercepts a portion of the incoming UVR. While this second layer is not generally important in larger lake systems, the UV environment in low-order streams can be highly dependent on this variable characteristic. The impact of canopy cover on ...
Long-term dynamics of biotic and abiotic resistance to exotic species
... and community dynamics within a single growing season (Gerhardt and Collinge 2007). We now have data from a long-term experiment in vernal pool restoration, including seven years of data on plant community dynamics in pools that were initially subject to different native plant seeding treatments (Co ...
... and community dynamics within a single growing season (Gerhardt and Collinge 2007). We now have data from a long-term experiment in vernal pool restoration, including seven years of data on plant community dynamics in pools that were initially subject to different native plant seeding treatments (Co ...
journal.pone.0170
... [12–13], and thereby seem to be vulnerable to extinction due to warmer climate especially at their southern edge of their distributions [14–16]. In warmer climate regions, cold-water adapted species like Arctic charr needs refuges in deep lakes, as their temperature preference is a trait that seems ...
... [12–13], and thereby seem to be vulnerable to extinction due to warmer climate especially at their southern edge of their distributions [14–16]. In warmer climate regions, cold-water adapted species like Arctic charr needs refuges in deep lakes, as their temperature preference is a trait that seems ...
Koala (Phascolarctos cinereus) – Fact Sheet
... spends the next 6-8 months growing and developing. At about nine months it emerges permanently out of the pouch and becomes independent from its mother at one year. Koalas can live to over 15 years in the wild, but most are believed to die between 10-14 years of age. Males generally do not live as l ...
... spends the next 6-8 months growing and developing. At about nine months it emerges permanently out of the pouch and becomes independent from its mother at one year. Koalas can live to over 15 years in the wild, but most are believed to die between 10-14 years of age. Males generally do not live as l ...
HOST-PARASITE RELATIONSHIPS OF THE BROWN
... so visits were reduced to 5-day intervals until the young reached an age of 4 or 5 days. After this time nests were checked at 3-day intervals when possible. Species described as common, or uncommon to common summer residents in Ellis County (Ely 1971) are collectively referred to as common species ...
... so visits were reduced to 5-day intervals until the young reached an age of 4 or 5 days. After this time nests were checked at 3-day intervals when possible. Species described as common, or uncommon to common summer residents in Ellis County (Ely 1971) are collectively referred to as common species ...
Kuma Nature Reserve - plan of management
... contains populations of three species of threatened grassland reptiles. These are the endangered Grassland Earless Dragon (Tympanocryptis pinguicolla) which is listed as endangered under both the NSW Threatened Species Conservation Act 1995 (TSC Act) and the EPBC Act, the Striped Legless Lizard (Del ...
... contains populations of three species of threatened grassland reptiles. These are the endangered Grassland Earless Dragon (Tympanocryptis pinguicolla) which is listed as endangered under both the NSW Threatened Species Conservation Act 1995 (TSC Act) and the EPBC Act, the Striped Legless Lizard (Del ...
Habitat
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A habitat is an ecological or environmental area that is inhabited by human, a particular species of animal, plant, or other type of organism.A place where a living thing lives is its habitat. It is a place where it can find food, shelter, protection and mates for reproduction. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population.A habitat is made up of physical factors such as soil, moisture, range of temperature, and availability of light as well as biotic factors such as the availability of food and the presence of predators. A habitat is not necessarily a geographic area—for a parasitic organism it is the body of its host, part of the host's body such as the digestive tract, or a cell within the host's body.