Territoriality in the South African Intertidal Limpet Scutellastra
... space can drive fierce competitive interactions between individuals [2-3]. One manifestation of these interactions is the development of territoriality, a prevalent example of how best to secure resources. A result of territorial behaviors, including competitive exclusion and territory maintenance, ...
... space can drive fierce competitive interactions between individuals [2-3]. One manifestation of these interactions is the development of territoriality, a prevalent example of how best to secure resources. A result of territorial behaviors, including competitive exclusion and territory maintenance, ...
The Roots of Diversity: Below Ground Species Richness and
... species forage and interact relative to the location of their above ground stems. Excavation of whole root systems has provided important insights into alternative plant foraging strategies [9], but it is inherently destructive and logistically difficult for plants with large root systems, such as t ...
... species forage and interact relative to the location of their above ground stems. Excavation of whole root systems has provided important insights into alternative plant foraging strategies [9], but it is inherently destructive and logistically difficult for plants with large root systems, such as t ...
American Burying Beetle Nicrophorus americanus
... The species has one generation over the period of a year, with individuals existing from the summer to their death in the following year. Individuals will typically have the opportunity to reproduce only once. Following emergence from the ground, in the late summer or early fall of the year in which ...
... The species has one generation over the period of a year, with individuals existing from the summer to their death in the following year. Individuals will typically have the opportunity to reproduce only once. Following emergence from the ground, in the late summer or early fall of the year in which ...
Assessing the Effects of Climate Change on Aquatic Invasive Species
... terways have been recorded throughout North America (Fuller et al. 1999). For example, piranha (Pygocentrus or Serrasalmus) have been recorded in 22 states, and although no populations have become established, areas where overwinter survival is possible may increase with climate warming (Fig. 4). To ...
... terways have been recorded throughout North America (Fuller et al. 1999). For example, piranha (Pygocentrus or Serrasalmus) have been recorded in 22 states, and although no populations have become established, areas where overwinter survival is possible may increase with climate warming (Fig. 4). To ...
June 2015 - Friends of Goose Pond
... time of its death 1982 The largest wild specimen known is said to have weighed in at 219 pounds. The alligator snapping turtle is more common in the southern United States but is threatened by overharvesting in some areas. In Indiana and Illinois it is a protected species. The alligator snapping tur ...
... time of its death 1982 The largest wild specimen known is said to have weighed in at 219 pounds. The alligator snapping turtle is more common in the southern United States but is threatened by overharvesting in some areas. In Indiana and Illinois it is a protected species. The alligator snapping tur ...
Ecology and evolution of negative and positive interactions in
... range of some xenogamous cactus species, it can be expected that populations may show a diverse set of adaptations to a variety of pollinator assemblages (Schlumpberger et al. 2009), with differences in floral traits linked to animal attraction (“the most effective pollinator principle”, Stebbins 19 ...
... range of some xenogamous cactus species, it can be expected that populations may show a diverse set of adaptations to a variety of pollinator assemblages (Schlumpberger et al. 2009), with differences in floral traits linked to animal attraction (“the most effective pollinator principle”, Stebbins 19 ...
Impacts of biological invasions: what`s what and - UNIV-TLSE3
... of over 10 000 non-native populations are known so far to cause measurable ecological impacts [27], this results in many problems. Among established aquatic species introduced to six European countries, 69% have recognized ecological impacts [28]. These percentages are underestimates, because many i ...
... of over 10 000 non-native populations are known so far to cause measurable ecological impacts [27], this results in many problems. Among established aquatic species introduced to six European countries, 69% have recognized ecological impacts [28]. These percentages are underestimates, because many i ...
Spicers Peak Nature Refuge - Eco Guide
... species of bats and eight small mammals such as bandicoots. Most native mammals have been affected by European settlement. Populations of many species increased after relaxation of Aboriginal hunting and dingo predation. However, government-subsidised control measures and rising numbers of introduce ...
... species of bats and eight small mammals such as bandicoots. Most native mammals have been affected by European settlement. Populations of many species increased after relaxation of Aboriginal hunting and dingo predation. However, government-subsidised control measures and rising numbers of introduce ...
Dinosaurs from the Jurassic of Sichuan
... females and one male (GNU-G0081-84). From the town of Zhaohu: four females and six males (GNU-Z0095-104). From Hexian Co.: two females and three males (GNU0081-85). Biological conditions: Shinisaurus frequently inhabits small impounded mountain streams. During the night, individuals lie quietly conc ...
... females and one male (GNU-G0081-84). From the town of Zhaohu: four females and six males (GNU-Z0095-104). From Hexian Co.: two females and three males (GNU0081-85). Biological conditions: Shinisaurus frequently inhabits small impounded mountain streams. During the night, individuals lie quietly conc ...
Functional traits and remnant populations of plants in abandoned
... Many studies on biodiversity have been concerned with semi-natural grasslands, as they are the main remnants of the traditional agricultural landscape in Scandinavia (Cousins 2001). Semi-natural grasslands are among the most species-rich habitats in northern and central Europe (Eriksson et al. 1995, ...
... Many studies on biodiversity have been concerned with semi-natural grasslands, as they are the main remnants of the traditional agricultural landscape in Scandinavia (Cousins 2001). Semi-natural grasslands are among the most species-rich habitats in northern and central Europe (Eriksson et al. 1995, ...
Parasites and Ecosystem Engineering: What Roles Could They Play?
... the crab is then completely altered and an important aspect of these alterations is that infected crabs do not moult in most cases (O'Brien and van Wyk 1985). The cuticle of infected C. nmaeiucasthen becomes a more permanent substrate for several invertebrate species than that of non-infected crabs ...
... the crab is then completely altered and an important aspect of these alterations is that infected crabs do not moult in most cases (O'Brien and van Wyk 1985). The cuticle of infected C. nmaeiucasthen becomes a more permanent substrate for several invertebrate species than that of non-infected crabs ...
Invasive and Other Problematic Species, Genes and Diseases
... mortality of this species could have significant consequences for a wide variety of wildlife in New Hampshire. Emerald ash borer (EAB) is an insect pest that feeds on and kills native ash (Fraxinus spp.) species. This non-native beetle was first identified in North America in Michigan in 2002 (USDA ...
... mortality of this species could have significant consequences for a wide variety of wildlife in New Hampshire. Emerald ash borer (EAB) is an insect pest that feeds on and kills native ash (Fraxinus spp.) species. This non-native beetle was first identified in North America in Michigan in 2002 (USDA ...
Fresh Water Habitats and Biodiversity (Edexcel AS)
... Advise students about the potential hazard of Weil’s disease (speak to your group leader). Students must cover cuts with micropore tape and not splash each other. Students with eczema should wear latex gloves, or avoid contact with the water. Divide students into work-groups and distribute abiotic e ...
... Advise students about the potential hazard of Weil’s disease (speak to your group leader). Students must cover cuts with micropore tape and not splash each other. Students with eczema should wear latex gloves, or avoid contact with the water. Divide students into work-groups and distribute abiotic e ...
BMC EcologyImage Competition 2015: the winning images
... becomes even more fascinating and precious to study, existing nowhere else in the world. This image serves as a record of a unique relationship. How many more locally specific interactions remain under-characterized or undiscovered, and how will the rapid loss of biodiversity and habitat impact such ...
... becomes even more fascinating and precious to study, existing nowhere else in the world. This image serves as a record of a unique relationship. How many more locally specific interactions remain under-characterized or undiscovered, and how will the rapid loss of biodiversity and habitat impact such ...
Invasion and predation in aquatic ecosystems
... Biotic resistance describes the ability of resident species in a community to reduce the success of invasions (Elton, 1958). Although resistance is well-accepted, the processes that contribute most to it, and whether the processes are strong enough to completely repel invaders are not always underst ...
... Biotic resistance describes the ability of resident species in a community to reduce the success of invasions (Elton, 1958). Although resistance is well-accepted, the processes that contribute most to it, and whether the processes are strong enough to completely repel invaders are not always underst ...
A mechanistic model of a mutualism and its ecological and
... be constrained by whatever resource is most limiting. Tilman (1980, 1988) developed this into an isoclinebased model of plant population dynamics. Inherent in the idea that there is one limiting resource is the idea that the plant has excess capacity for capture of other resources. This returns us t ...
... be constrained by whatever resource is most limiting. Tilman (1980, 1988) developed this into an isoclinebased model of plant population dynamics. Inherent in the idea that there is one limiting resource is the idea that the plant has excess capacity for capture of other resources. This returns us t ...
a full - British Ecological Society
... (Cohen 1978; MacDonald 1979). I have found the following terms useful, and apply most of them in their common-sense, conventional ways. Food chains and webs. The concept was apparently Elton's (1927). A hierarchy of monophagous consumers would constitute a chain: collection of these into broader uni ...
... (Cohen 1978; MacDonald 1979). I have found the following terms useful, and apply most of them in their common-sense, conventional ways. Food chains and webs. The concept was apparently Elton's (1927). A hierarchy of monophagous consumers would constitute a chain: collection of these into broader uni ...
Undaria pinnatifida
... seabed. U. pinnatifida fouls ropes and lines, buoys, pontoons, cages used in aquaculture, jetties and other harbour structures, and ships’ hulls. There are also reports of the species blocking water intakes. Drifting specimens may be washed up on beaches, forming unpleasant, foul-smelling banks of r ...
... seabed. U. pinnatifida fouls ropes and lines, buoys, pontoons, cages used in aquaculture, jetties and other harbour structures, and ships’ hulls. There are also reports of the species blocking water intakes. Drifting specimens may be washed up on beaches, forming unpleasant, foul-smelling banks of r ...
Rutgers Model United Nations 4 - Institute for Domestic and
... states’ economies. Products derived from plants and animals include food, medicines, and building materials and unsustainable production practices may result in the extinction of these species. This convention responded to the potential extinction of various internationally traded species. Currently ...
... states’ economies. Products derived from plants and animals include food, medicines, and building materials and unsustainable production practices may result in the extinction of these species. This convention responded to the potential extinction of various internationally traded species. Currently ...
Varanus acanthurus. Photo by Jeff Lemm.
... greenhouse effect, which has changed the climate to produce ever increasing maximum temperatures. Increased temperatures threaten some lizard species in highly biodiverse tropical and subtropical regions. Many lizards are also threatened by habitat loss and over-harvesting. Although lizards are ecto ...
... greenhouse effect, which has changed the climate to produce ever increasing maximum temperatures. Increased temperatures threaten some lizard species in highly biodiverse tropical and subtropical regions. Many lizards are also threatened by habitat loss and over-harvesting. Although lizards are ecto ...
recor : monitoring network for coralligenous assemblages
... each station, and demographic data concerning erected species (gorgonians especially). a) General description of the site At each site, GPS coordinates are collected from the boat. They correspond to the location of a steel spike (50 cm long) set within the coralligenous reef. This stake marked with ...
... each station, and demographic data concerning erected species (gorgonians especially). a) General description of the site At each site, GPS coordinates are collected from the boat. They correspond to the location of a steel spike (50 cm long) set within the coralligenous reef. This stake marked with ...
The role of ecological interactions in determining species
... Similar patterns were found for the six additional taxonomic groups analyzed (Fig. 2, Table 1), each showing a triangular relationship between range sizes of plants and their insect herbivores, albeit with generally smaller proportions of food plant ranges occupied that are mostly attributable to lo ...
... Similar patterns were found for the six additional taxonomic groups analyzed (Fig. 2, Table 1), each showing a triangular relationship between range sizes of plants and their insect herbivores, albeit with generally smaller proportions of food plant ranges occupied that are mostly attributable to lo ...
Restoration of degraded hill land in South China
... and Diament, 1991). In extremely degraded sites, environmental stresses act as abiotic filter and only some pioneer species may be able to tolerate the severe conditions. South China is in the lower subtropical monsoon region. The annual precipitation is about 1700mm and the rainfall is generally in ...
... and Diament, 1991). In extremely degraded sites, environmental stresses act as abiotic filter and only some pioneer species may be able to tolerate the severe conditions. South China is in the lower subtropical monsoon region. The annual precipitation is about 1700mm and the rainfall is generally in ...
The Genus Clusia L. - Ruhr
... CAM plants reduce transpiratory water loss by taking up CO2 during the night when stomates are open and the leaf to air water vapour pressure deficit is low. They fix CO2 via the enzyme phosphoenolpyruvate carboxylase (PEPC) and store it overnight in the vacuole as malic acid. During the day, stomat ...
... CAM plants reduce transpiratory water loss by taking up CO2 during the night when stomates are open and the leaf to air water vapour pressure deficit is low. They fix CO2 via the enzyme phosphoenolpyruvate carboxylase (PEPC) and store it overnight in the vacuole as malic acid. During the day, stomat ...
Tundra_000 - JBHA-Sci-US-tri1
... Adaptation to 24 hour daylight of tundra in summer Change color - brown in summer, white in winter Prey on lemmings – around 12/day They nest on ground on highest and driest portions of biome ...
... Adaptation to 24 hour daylight of tundra in summer Change color - brown in summer, white in winter Prey on lemmings – around 12/day They nest on ground on highest and driest portions of biome ...
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.