Consumer mobility and the relative importance of consumption and
... regrowth of the producer assemblage following a disturbance. In the absence of consumers, net production increases early during colonization, and then decreases as resources (e.g. space, light) are monopolized. The descending portions of the producer growth curves represent levels of producer biomas ...
... regrowth of the producer assemblage following a disturbance. In the absence of consumers, net production increases early during colonization, and then decreases as resources (e.g. space, light) are monopolized. The descending portions of the producer growth curves represent levels of producer biomas ...
Ecological impacts of invasive cane toads
... some individuals are fatally poisoned, but most survive (because small toads contain far less toxin than large adult toads) and learn to avoid toads thereafter. Most Australian birds and rodents have inherited a tolerance of toad poison from Asian ancestors, and thus are not affected. Even for heavi ...
... some individuals are fatally poisoned, but most survive (because small toads contain far less toxin than large adult toads) and learn to avoid toads thereafter. Most Australian birds and rodents have inherited a tolerance of toad poison from Asian ancestors, and thus are not affected. Even for heavi ...
Using standardized sampling designs from population ecology to
... grasslands between the two study regions. Level 1, 3 and 5 describe inventory diversity (i.e. number of species) and 2, 4 and 6 differentiation diversity (i.e. change of composition or dissimilarity, Whittaker, 1977). Traditional comparisons across these levels often use data from different studies ...
... grasslands between the two study regions. Level 1, 3 and 5 describe inventory diversity (i.e. number of species) and 2, 4 and 6 differentiation diversity (i.e. change of composition or dissimilarity, Whittaker, 1977). Traditional comparisons across these levels often use data from different studies ...
Animal Behaviour
... Understand the roles within a group and an example of how roles are established in at least one specie group. ...
... Understand the roles within a group and an example of how roles are established in at least one specie group. ...
Look what the cat dragged in: Felis silvestris catus as
... Domestic cat predation was found to represent a significant threat to bats in the Italian peninsula, where most adult bat admissions to wildlife rescue centres were associated with cat-related injuries (Ancillotto et al. 2013). Furthermore, from a total of 9852 mammal prey items brought home by 986 ...
... Domestic cat predation was found to represent a significant threat to bats in the Italian peninsula, where most adult bat admissions to wildlife rescue centres were associated with cat-related injuries (Ancillotto et al. 2013). Furthermore, from a total of 9852 mammal prey items brought home by 986 ...
Predation Efficiency of Insect Predators in Suppressing Red Mite
... conducted in the laboratory of Department of Entomology of Bangladesh Agricultural University (BAU), Mymensingh between November, 2005 and March 2006. To ensure supply of the predators for the study the grubs of S. punctillum and M. discolor were cultured in the laboratory. Adult adult beetles of th ...
... conducted in the laboratory of Department of Entomology of Bangladesh Agricultural University (BAU), Mymensingh between November, 2005 and March 2006. To ensure supply of the predators for the study the grubs of S. punctillum and M. discolor were cultured in the laboratory. Adult adult beetles of th ...
Trophic ecology of meiofauna: Francisco J.A. Nascimento
... greater quantity than previously. Paper I found that meiofauna can feed on settled cyanobacteria at rates similar to what other studies have found for diatoms, yet suffer no apparent increase in mortality. However, growth of meiofauna is significantly slower on a diet of cyanobacteria than when fed ...
... greater quantity than previously. Paper I found that meiofauna can feed on settled cyanobacteria at rates similar to what other studies have found for diatoms, yet suffer no apparent increase in mortality. However, growth of meiofauna is significantly slower on a diet of cyanobacteria than when fed ...
Changes to Marine Trophic Networks Caused by
... All these indicators of structural simplification of trophic networks have a very important implication, which is the possible reduction in functional redundancy, part of the biological insurance of ecosystems (Montoya et al., 2001). Thus, fishing pressure creates two highly dangerous scenarios for ...
... All these indicators of structural simplification of trophic networks have a very important implication, which is the possible reduction in functional redundancy, part of the biological insurance of ecosystems (Montoya et al., 2001). Thus, fishing pressure creates two highly dangerous scenarios for ...
Greater bilby - WWF
... greater bilby’s diet appears to rely heavily on the incidence of fire to regenerate. Large uncontrolled fires may eventually reduce the type and abundance of food plants available to the bilby. Drought & climate change The greater bilby is only partly adapted to arid environments and thus could be a ...
... greater bilby’s diet appears to rely heavily on the incidence of fire to regenerate. Large uncontrolled fires may eventually reduce the type and abundance of food plants available to the bilby. Drought & climate change The greater bilby is only partly adapted to arid environments and thus could be a ...
Evolution, ecology and biochronology of herbivore associations in
... ecosystem succession, climate conditions, productivity of ecosystem, and relationships with other faunal groups, among others in a prey-predator dynamic. Some of the enlisted factors have been considered in the previous paleofaunistic studies (Rodriguez, 2004; Rodriguez et al., 2004; Turner, 1995). ...
... ecosystem succession, climate conditions, productivity of ecosystem, and relationships with other faunal groups, among others in a prey-predator dynamic. Some of the enlisted factors have been considered in the previous paleofaunistic studies (Rodriguez, 2004; Rodriguez et al., 2004; Turner, 1995). ...
12 Feeding Ecology of Piscivorous Fishes
... any certainty. Laboratory tanks used for piscivores and their prey are generally too small to yield any realistic estimates of encounter rate, as all prey are usually within the visual field of a given predator . Therefore, encounter probabilities are often estimated using mathematical models that i ...
... any certainty. Laboratory tanks used for piscivores and their prey are generally too small to yield any realistic estimates of encounter rate, as all prey are usually within the visual field of a given predator . Therefore, encounter probabilities are often estimated using mathematical models that i ...
Size-dependent trait-mediated indirect interactions among sea
... blotted dry and weighed to assess sea urchin grazing rates. Individual sea urchins and P. helianthoides were only used in one grazing trial, and tanks were cleaned between trials. In the first grazing experiment, I placed a single S. droebachiensis in the downstream compartment of each of the previo ...
... blotted dry and weighed to assess sea urchin grazing rates. Individual sea urchins and P. helianthoides were only used in one grazing trial, and tanks were cleaned between trials. In the first grazing experiment, I placed a single S. droebachiensis in the downstream compartment of each of the previo ...
A Sensitive Ecosystem Guide - Salt Spring Island Conservancy
... Mature forest ecosystems are conifer-dominated dry to moist forest stands, usually 80 to 250 years old. Some stands may include deciduous tree species making up 25% of the canopy cover. Where are Mature Forest Ecosystems located? Mature forest ecosystems are often found in areas surrounding or borde ...
... Mature forest ecosystems are conifer-dominated dry to moist forest stands, usually 80 to 250 years old. Some stands may include deciduous tree species making up 25% of the canopy cover. Where are Mature Forest Ecosystems located? Mature forest ecosystems are often found in areas surrounding or borde ...
La biodiversité, c`est la vie - doc-developpement
... •The phytopurification and fongoremédiation or most treatment plants are based ecosystems to purify water, air and soil; •Integrated Multi-Trophic Aquaculture ( IMTA or for Integrated multi- trophic aquaculture for English ) is particularly tested in Norway and Canada . [5] It is based on the fact t ...
... •The phytopurification and fongoremédiation or most treatment plants are based ecosystems to purify water, air and soil; •Integrated Multi-Trophic Aquaculture ( IMTA or for Integrated multi- trophic aquaculture for English ) is particularly tested in Norway and Canada . [5] It is based on the fact t ...
Body size evolution in insular vertebrates: generality of the island rule
... these factors potentially influencing body size of insular populations (Fig. 3). Since the phenomenon under study, evolutionary divergence, occurs across islands and insular populations, and because causal explanation are appropriately framed at that scale, population-level analyses of the pattern a ...
... these factors potentially influencing body size of insular populations (Fig. 3). Since the phenomenon under study, evolutionary divergence, occurs across islands and insular populations, and because causal explanation are appropriately framed at that scale, population-level analyses of the pattern a ...
Drake, D. R. - IPNA-CSIC
... Predation by feral cats has important impacts on seabirds and many other vertebrates on islands worldwide (Moors and Atkinson 1984). More than 15 species of reptiles, 30 mammals, and lOO birds are threatened by feral cats on islands (Medina et al. unpublished data). Cats have led to the extinction o ...
... Predation by feral cats has important impacts on seabirds and many other vertebrates on islands worldwide (Moors and Atkinson 1984). More than 15 species of reptiles, 30 mammals, and lOO birds are threatened by feral cats on islands (Medina et al. unpublished data). Cats have led to the extinction o ...
Efficient Learning of Entity and Predicate Embeddings for Link
... learning process consists in minimizing a global loss functional considering the whole KG, by back-propagating the loss to the embeddings 3 . As a consequence, the learned entity and predicate embeddings retain global, structural information about the whole KG, and can be used to serve several kinds ...
... learning process consists in minimizing a global loss functional considering the whole KG, by back-propagating the loss to the embeddings 3 . As a consequence, the learned entity and predicate embeddings retain global, structural information about the whole KG, and can be used to serve several kinds ...
Propagule supply controls grazer community structure and primary
... inferior competitors will be driven extinct, returning the community to the saturation point. Thus defined, species diversity at saturation is the stable equilibrium point to which communities are naturally attracted. Whether or not communities are likely to ever reach saturation remains an unresolv ...
... inferior competitors will be driven extinct, returning the community to the saturation point. Thus defined, species diversity at saturation is the stable equilibrium point to which communities are naturally attracted. Whether or not communities are likely to ever reach saturation remains an unresolv ...
Functional traits, convergent evolution, and periodic tables of niches
... (1996) suggested this analogy with chemistry is flawed because no set of functional characteristics could predict the ecological equivalent of chemical reactivity. Southwood (1977) and, more recently, Ferraro & Cole (2010) and Ferraro (2013) explored the related concept of ecological periodic tables ...
... (1996) suggested this analogy with chemistry is flawed because no set of functional characteristics could predict the ecological equivalent of chemical reactivity. Southwood (1977) and, more recently, Ferraro & Cole (2010) and Ferraro (2013) explored the related concept of ecological periodic tables ...
Allopatric Mimicry - Sierra Herps Logo
... avian predators that include snakes in their diet. All of the species listed also have a southward migration during the winter to warmer areas. The Red-shouldered Hawk and the Red-Tailed Hawk do not migrate as extensively as the others but the thing that they all have in common is that during the wi ...
... avian predators that include snakes in their diet. All of the species listed also have a southward migration during the winter to warmer areas. The Red-shouldered Hawk and the Red-Tailed Hawk do not migrate as extensively as the others but the thing that they all have in common is that during the wi ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.