assessment
... intensive logging on west Guadalcanal may have had a negative impact on the species's habitat as some of these operations occurred in hill forest habitats and have altered the hydrology of the area (C. Filardi in litt. 2012). In addition, mining and prospecting activity has intensified in recent few ...
... intensive logging on west Guadalcanal may have had a negative impact on the species's habitat as some of these operations occurred in hill forest habitats and have altered the hydrology of the area (C. Filardi in litt. 2012). In addition, mining and prospecting activity has intensified in recent few ...
Open or download EMP bulletin as a PDF file
... Rats are commonly thought to live in areas with a high density of people, such as cities, or even in rural areas or agricultural fields, posing a risk to human health by transmitting diseases. Yet rats are not limited to these areas. On the Hawaiian Islands, rats can even be found at high-elevations ...
... Rats are commonly thought to live in areas with a high density of people, such as cities, or even in rural areas or agricultural fields, posing a risk to human health by transmitting diseases. Yet rats are not limited to these areas. On the Hawaiian Islands, rats can even be found at high-elevations ...
Recovery Strategies Backgrounder (PDF 444KB)
... Recovery of Garry Oak Ecosystems The Garry Oak Ecosystems Recovery Team (GOERT) was formed in 1999 to coordinate efforts to save endangered Garry oak and associated ecosystems and the species that inhabit them. GOERT prepared an umbrella strategy for the recovery of Garry oak and associated ecosyste ...
... Recovery of Garry Oak Ecosystems The Garry Oak Ecosystems Recovery Team (GOERT) was formed in 1999 to coordinate efforts to save endangered Garry oak and associated ecosystems and the species that inhabit them. GOERT prepared an umbrella strategy for the recovery of Garry oak and associated ecosyste ...
dividends_from_diversity_lesson-new
... there are at least two-million species of biological organisms in the world, levels of biodiversity are different in different parts of the world, and in different habitats (e.g., grassland vs. forest). For example, several “biodiversity hotspots” have been identified throughout the world, such as m ...
... there are at least two-million species of biological organisms in the world, levels of biodiversity are different in different parts of the world, and in different habitats (e.g., grassland vs. forest). For example, several “biodiversity hotspots” have been identified throughout the world, such as m ...
Squirrel Glider Facts
... NSW to northern Qld, occurring inland as far as the Grampians in Vic and Pilliga in NSW. Its population is currently in decline and its distribution extremely patchy as result of clearing for agriculture and/or urban development. What habitat remains is highly fragmented and continues to be degraded ...
... NSW to northern Qld, occurring inland as far as the Grampians in Vic and Pilliga in NSW. Its population is currently in decline and its distribution extremely patchy as result of clearing for agriculture and/or urban development. What habitat remains is highly fragmented and continues to be degraded ...
Are we in the midst of the sixth mass extinction? A view from the
... vulnerable to habitat changes that might result from either direct or indirect human activities. Living amphibians (Class Amphibia, Subclass Lissamphibia) include frogs (Order Anura, ⬇5,600 currently recognized species), salamanders (Order Caudata, ⬇570 species), and caecilians (Order Gymnophiona, ⬇ ...
... vulnerable to habitat changes that might result from either direct or indirect human activities. Living amphibians (Class Amphibia, Subclass Lissamphibia) include frogs (Order Anura, ⬇5,600 currently recognized species), salamanders (Order Caudata, ⬇570 species), and caecilians (Order Gymnophiona, ⬇ ...
CH - NIMBioS
... terHorst, Miller, and Power model A problem is that the model essentially acts through group selection. It creates variation in resource use among populations, then selections the population that has the highest growth rate. This form of modeling competitors has been shown to be inaccurate. ...
... terHorst, Miller, and Power model A problem is that the model essentially acts through group selection. It creates variation in resource use among populations, then selections the population that has the highest growth rate. This form of modeling competitors has been shown to be inaccurate. ...
The potential role of large herbivores in nature
... management. This frequently allowed a continuing deterioration in the ecosystem (Van Wieren, 1991) and it was realized that active management was needed. This has consisted of the continuation of farming practices: mowing, cutting sods, rotational grazing, coppicing and burning. Nature conservation ...
... management. This frequently allowed a continuing deterioration in the ecosystem (Van Wieren, 1991) and it was realized that active management was needed. This has consisted of the continuation of farming practices: mowing, cutting sods, rotational grazing, coppicing and burning. Nature conservation ...
Killer Shrimp - Dikerogammarus villosus
... Killer Shrimp - Dikerogammarus villosus An amphipod native to the Ponto-Caspian region, Dikerogammarus villosus has recently invaded and spread throughout western Europe. Its populations have caused in significant ecological disruption, including reduced biodiversity and local species extinction. Al ...
... Killer Shrimp - Dikerogammarus villosus An amphipod native to the Ponto-Caspian region, Dikerogammarus villosus has recently invaded and spread throughout western Europe. Its populations have caused in significant ecological disruption, including reduced biodiversity and local species extinction. Al ...
Character Displacement and Fish Behavior, Especially in Coral Reef
... discrimination than is possible (at least selection can work on species competing for initially) with morphological criteria. This, limiting resources in two ways. One is posiI think, is now widely accepted. Liley (1966) tive competitive ability, wherein one species suggested "that ethological isola ...
... discrimination than is possible (at least selection can work on species competing for initially) with morphological criteria. This, limiting resources in two ways. One is posiI think, is now widely accepted. Liley (1966) tive competitive ability, wherein one species suggested "that ethological isola ...
by Non-native Insect Pests
... relative ease and became important pests (Miller et al. 2005). Even specialized pest species from Europe and Asia have been able to find closely related, often congeneric species of woody North American plants to attack (Aukema et al. 2010). The lack of evolved defenses in North American hosts and t ...
... relative ease and became important pests (Miller et al. 2005). Even specialized pest species from Europe and Asia have been able to find closely related, often congeneric species of woody North American plants to attack (Aukema et al. 2010). The lack of evolved defenses in North American hosts and t ...
blowfish fact sheet - World Animal Foundation
... Blowfish, or pufferfish, are found in tropical and subtropical ocean waters and are known for their ability to inflate to make themselves inedible to predators. Some species also have sharp spines and contain toxins to protect themselves from predators. Blowfish are in the family Tetraodontidae, whi ...
... Blowfish, or pufferfish, are found in tropical and subtropical ocean waters and are known for their ability to inflate to make themselves inedible to predators. Some species also have sharp spines and contain toxins to protect themselves from predators. Blowfish are in the family Tetraodontidae, whi ...
Indezine Template
... Ecological Community – is a group of species that live together and interact with each other. Community Structure – the composition and relative abundance of the different types of organisms present. ...
... Ecological Community – is a group of species that live together and interact with each other. Community Structure – the composition and relative abundance of the different types of organisms present. ...
Evolution of high marshes in the St. Lawrence freshwater
... The tidal marshes of the St. Lawrence River freshwater estuary are home to various endemic plants, some of which are currently at risk. Among these plants, three are designated as endangered in Quebec and are subject to conservation plans, i.e. Victorin's water hemlock, Parker's pipewort and Victori ...
... The tidal marshes of the St. Lawrence River freshwater estuary are home to various endemic plants, some of which are currently at risk. Among these plants, three are designated as endangered in Quebec and are subject to conservation plans, i.e. Victorin's water hemlock, Parker's pipewort and Victori ...
Skabelon
... Minimum effort limitations based on F (manager decision) Maximum effort limitations based on F (manager decision) Open access (effort is maximized in order to catch the most) ...
... Minimum effort limitations based on F (manager decision) Maximum effort limitations based on F (manager decision) Open access (effort is maximized in order to catch the most) ...
Terrestrial Conservation Reserve System (Policy 31)
... 7.11 Liaise, and where possible enter into management agreements, with managers or owners of catchments of wetland reserves and Government agencies whose activities may impinge on conservation reserves. 7.12 Exclude from conservation reserves as far as practical, species of plant and animal not nati ...
... 7.11 Liaise, and where possible enter into management agreements, with managers or owners of catchments of wetland reserves and Government agencies whose activities may impinge on conservation reserves. 7.12 Exclude from conservation reserves as far as practical, species of plant and animal not nati ...
SPECIES INFORMATION SHEET Branta bernicla hrota (wintering
... A high protective status has been given to all areas used by light-bellied brent geese on Svalbard and in Greenland. However, the nesting success of breeding pairs in Svalbard is greatly reduced as a result of predation by Arctic fox Vulpes lagopus (Madsen et al. 1992, cited in BirdLife Internationa ...
... A high protective status has been given to all areas used by light-bellied brent geese on Svalbard and in Greenland. However, the nesting success of breeding pairs in Svalbard is greatly reduced as a result of predation by Arctic fox Vulpes lagopus (Madsen et al. 1992, cited in BirdLife Internationa ...
Competition theory and the structure of ecological
... dominant, but not in two-species associations and not in asexual forms. Unlike other theories, however, ours does not predict any specific value of morphological ratio or limiting similarity. We develop procedures to assess the degree of numerical dominance in an assemblage, and then test the predic ...
... dominant, but not in two-species associations and not in asexual forms. Unlike other theories, however, ours does not predict any specific value of morphological ratio or limiting similarity. We develop procedures to assess the degree of numerical dominance in an assemblage, and then test the predic ...
The Diversity and Impacts of Alien Species
... broad host range was considered advantageous for species introduced during early biological control programmes on the archipelago. Their legacy has been strong implication in the reduction and extinctions of many native endemic hosts. Thus, M. laphygmae has been reported from hosts in six families o ...
... broad host range was considered advantageous for species introduced during early biological control programmes on the archipelago. Their legacy has been strong implication in the reduction and extinctions of many native endemic hosts. Thus, M. laphygmae has been reported from hosts in six families o ...
ap biology notes on ecology
... number of individuals in a cohort still alive at each age. Although survivorship curves are diverse, they usually follow one of three patterns: Type I – flat at the start, reflecting low death rates during the early and middle years, than it drops steeply as death rates increase in old age (large ...
... number of individuals in a cohort still alive at each age. Although survivorship curves are diverse, they usually follow one of three patterns: Type I – flat at the start, reflecting low death rates during the early and middle years, than it drops steeply as death rates increase in old age (large ...
... fungi). While each of the individual physical and biological processes plays a role, ultimately it is the integrated sum of the processes, the environment’s invasibility, that is the local driver of diversity. The primary effect of an environment’s invasibility on local diversity is as a filter of ...
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 ...
Sexual selection or wind dispersal?
... hypothesis is that it seems these benefits should apply equally well in any environment, so it remains unclear why gigantism should be a unique feature of tropical high altitudes. Other factors may have influenced the evolution of gigantism in Dahlia sp. For example, it may be an adaptation to inten ...
... hypothesis is that it seems these benefits should apply equally well in any environment, so it remains unclear why gigantism should be a unique feature of tropical high altitudes. Other factors may have influenced the evolution of gigantism in Dahlia sp. For example, it may be an adaptation to inten ...
Habitats, species of animals and plants
... under logs or rocks, not more than 1 kilometer from aquatic environments, where it breeds. Some specimens remain in the water all throughout their active life. It lives in large, stagnant, usually permanent (but sometimes also temporary) waters with lush vegetation: lakes, ponds, pools or canals, pr ...
... under logs or rocks, not more than 1 kilometer from aquatic environments, where it breeds. Some specimens remain in the water all throughout their active life. It lives in large, stagnant, usually permanent (but sometimes also temporary) waters with lush vegetation: lakes, ponds, pools or canals, pr ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.