Death of a snake Philodryas nattereri (Squamata: Dipsadidae) after
... found from Caatinga and Cerrado areas to the restingas (tropical coastal vegetation), Atlantic and Amazon Forest (Rodrigues, 1987; Ribeiro, Sousa and Gomides, 2009; Ribeiro and Freire, 2010). Tropidurus hispidus is the largest species of the genus, with specimens reaching up to 350 mm in total lengt ...
... found from Caatinga and Cerrado areas to the restingas (tropical coastal vegetation), Atlantic and Amazon Forest (Rodrigues, 1987; Ribeiro, Sousa and Gomides, 2009; Ribeiro and Freire, 2010). Tropidurus hispidus is the largest species of the genus, with specimens reaching up to 350 mm in total lengt ...
Full PDF - Phyllomedusa - Journal of Herpetology
... small snakes in South Africa. Small snakes are frequent prey of predatory birds, reptiles, of observing such predation events. However, studies using plasticine snake models have constructed from slow-drying clay (as a substitute to plasticine) were used to assess the predation rate on small snakes ...
... small snakes in South Africa. Small snakes are frequent prey of predatory birds, reptiles, of observing such predation events. However, studies using plasticine snake models have constructed from slow-drying clay (as a substitute to plasticine) were used to assess the predation rate on small snakes ...
Habitat destruction and metacommunity size in pen
... invertebrates found living in empty pen shells as experimental microcosms (see, e.g. Srivastava et al. 2004) to test the effects of metacommunity size and habitat destruction on local diversity and species commonness and rarity. Pen shell communities are a useful system for testing scaling issues in ...
... invertebrates found living in empty pen shells as experimental microcosms (see, e.g. Srivastava et al. 2004) to test the effects of metacommunity size and habitat destruction on local diversity and species commonness and rarity. Pen shell communities are a useful system for testing scaling issues in ...
Summary - GB non-native species secretariat
... CABI, Welsh Government and DEFRA) are aware there may be tools or techniques within other sectors that could be developed to provide new and more effective aquatic INNS control solutions. Biocides have been successfully used to control terrestrial pests and more efficient, less environmentally damag ...
... CABI, Welsh Government and DEFRA) are aware there may be tools or techniques within other sectors that could be developed to provide new and more effective aquatic INNS control solutions. Biocides have been successfully used to control terrestrial pests and more efficient, less environmentally damag ...
Questions and answers about food webs
... the food web would have to include increasingly distant interactions until it encompassed every species on the planet1. A food web contains food chains, and can be described as a series of food chains. It is possible to calculate the average length, or the maximum length, of all the individual food ...
... the food web would have to include increasingly distant interactions until it encompassed every species on the planet1. A food web contains food chains, and can be described as a series of food chains. It is possible to calculate the average length, or the maximum length, of all the individual food ...
Lowland subtropical rainforest
... The Australian Government has been investing in the protection of ecological communities such as Lowland Subtropical Rainforest, through its Caring for our Country program. As a result of this funding, between 2012-2013 SEQ Catchments worked with landholders across South East Queensland to restore a ...
... The Australian Government has been investing in the protection of ecological communities such as Lowland Subtropical Rainforest, through its Caring for our Country program. As a result of this funding, between 2012-2013 SEQ Catchments worked with landholders across South East Queensland to restore a ...
Name: Ecology 1. Plants make their own food
... provide some of the materials that plants use for photosynthesis. This image below shows the relationship between photosynthesis and cellular respiration. ...
... provide some of the materials that plants use for photosynthesis. This image below shows the relationship between photosynthesis and cellular respiration. ...
Seed arrival, ecological filters, and plant species richness: a meta
... productivity. This "shifting limitations hypothesis! (Foster et al. 2004) predicts that diversity is mostly limited by immigration from species pools at intermediate productivity, whereas establishment limitation imposed by competition for limiting resources becomes more important at high productivi ...
... productivity. This "shifting limitations hypothesis! (Foster et al. 2004) predicts that diversity is mostly limited by immigration from species pools at intermediate productivity, whereas establishment limitation imposed by competition for limiting resources becomes more important at high productivi ...
Common Ancestry and Natural Selection
... Many current biologists are less hesitant; the hypothesis of a single common ancestor is often regarded as strongly supported by the near-universality of the genetic code (an argument we will consider shortly) and by other universals of biochemistry (e.g., the fact that all amino acids found in pro ...
... Many current biologists are less hesitant; the hypothesis of a single common ancestor is often regarded as strongly supported by the near-universality of the genetic code (an argument we will consider shortly) and by other universals of biochemistry (e.g., the fact that all amino acids found in pro ...
Perennial habitat fragments, parasitoid diversity and
... 1. Agricultural intensification has led to the removal of semi-wild, perennial vegetation in agricultural landscapes. However, in short-cycle crops, frequent disturbance from insecticides, harvesting and tillage disrupts the establishment of resident communities of natural enemies of pests. Semi-wil ...
... 1. Agricultural intensification has led to the removal of semi-wild, perennial vegetation in agricultural landscapes. However, in short-cycle crops, frequent disturbance from insecticides, harvesting and tillage disrupts the establishment of resident communities of natural enemies of pests. Semi-wil ...
assessment
... longer occurring across more than 90% of its former range (James and Retallick 2007; Lumsden et al. 2007). Long-term monitoring using bat detectors indicates this species underwent a 90% decline in abundance between 1994 and 2006 (James and Retallick 2007, Lumsden et al. 2007). Since 2006 this decli ...
... longer occurring across more than 90% of its former range (James and Retallick 2007; Lumsden et al. 2007). Long-term monitoring using bat detectors indicates this species underwent a 90% decline in abundance between 1994 and 2006 (James and Retallick 2007, Lumsden et al. 2007). Since 2006 this decli ...
Isurus oxyrinchus (Shortfin Mako Shark)
... POPULATION ECOLOGY. Shortfin mako sharks are typically solitary (Bridge et al., 2013). Pregnant females are well dispersed, to increase the survival rates of pups that are preyed upon by other oceanic predators like the white shark or adult shortfin mako sharks. At nurseries off Brazil and San Diego ...
... POPULATION ECOLOGY. Shortfin mako sharks are typically solitary (Bridge et al., 2013). Pregnant females are well dispersed, to increase the survival rates of pups that are preyed upon by other oceanic predators like the white shark or adult shortfin mako sharks. At nurseries off Brazil and San Diego ...
Invasive Species: A Look at their Disastrous Effects on Ecosystems
... such a competitive advantage is by preventing native species from obtaining food, living space, or other resources. Over time, invading species can effectively replace native ones, often forcing the localized extinction of many native species. An important point to keep in mind regarding invasive sp ...
... such a competitive advantage is by preventing native species from obtaining food, living space, or other resources. Over time, invading species can effectively replace native ones, often forcing the localized extinction of many native species. An important point to keep in mind regarding invasive sp ...
2014 Bee Niche and N..
... calculates niche overlap for each randomly generated matrix. The significance of observed values was determined by comparison of the empirical value to the resulting null distribution, using a two-tailed test and an α level of 0.05. To determine if daily or seasonal variation in abiotic factors affe ...
... calculates niche overlap for each randomly generated matrix. The significance of observed values was determined by comparison of the empirical value to the resulting null distribution, using a two-tailed test and an α level of 0.05. To determine if daily or seasonal variation in abiotic factors affe ...
Trait-Mediated Effects in Rocky Intertidal Food Chains
... Several studies have shown that carnivorous (N. lapillus) and herbivorous (L. littorea, L. obtusata) snails exhibit inducible increases in shell thickness in reics. sponse to waterborne risk cues released by the green In aquatic systems, TMIIs often occur because of crab (Appleton and Palmer 1988, P ...
... Several studies have shown that carnivorous (N. lapillus) and herbivorous (L. littorea, L. obtusata) snails exhibit inducible increases in shell thickness in reics. sponse to waterborne risk cues released by the green In aquatic systems, TMIIs often occur because of crab (Appleton and Palmer 1988, P ...
Comparative studies of terrestrial vertebrates in urban areas
... Luniak et al. (1990) classified cities in central and eastern Europe based on their ecological setting: vegetation zone and presence/absence of sea coast or big rivers. Harris and Raynor (1986) classified British cities using a scheme developed by urban geographers to group cities with similar devel ...
... Luniak et al. (1990) classified cities in central and eastern Europe based on their ecological setting: vegetation zone and presence/absence of sea coast or big rivers. Harris and Raynor (1986) classified British cities using a scheme developed by urban geographers to group cities with similar devel ...
Macropodiformes
... ecosystems) There are now 60 recognized species of kangaroos in the world today ; all evolving from one common ancestor. Obviously , adaptive radiation occurred at microscopic and macroscopic levels for this to be possible. Diversity within Kangaroos (and wallabies) is extremely rich: some inhabit c ...
... ecosystems) There are now 60 recognized species of kangaroos in the world today ; all evolving from one common ancestor. Obviously , adaptive radiation occurred at microscopic and macroscopic levels for this to be possible. Diversity within Kangaroos (and wallabies) is extremely rich: some inhabit c ...
Invasion, Competition, and Biodiversity Loss in Urban
... 2004a). In the desert, however, birds depleted resources in areas close to the bush to a greater extent than in those in the open (Shochat et al. 2004a). These findings indicate that birds perceive the city as a safer habitat from predators. In sum, these findings from recent studies suggest that hi ...
... 2004a). In the desert, however, birds depleted resources in areas close to the bush to a greater extent than in those in the open (Shochat et al. 2004a). These findings indicate that birds perceive the city as a safer habitat from predators. In sum, these findings from recent studies suggest that hi ...
Department of Mathematics and Statistics
... scientific inference – methods for drawing conclusion from data. Data that is to some extent corrupted by some component of random variation (random noise) ...
... scientific inference – methods for drawing conclusion from data. Data that is to some extent corrupted by some component of random variation (random noise) ...
- New Zealand Ecological Society
... Abstract: The ecological restoration of Tiritiri Matangi Island is a community-driven initiative that has captured the interest of the international conservation movement. Ecological restoration commonly focuses on the establishment and maintenance of functioning indigenous ecosystems through the co ...
... Abstract: The ecological restoration of Tiritiri Matangi Island is a community-driven initiative that has captured the interest of the international conservation movement. Ecological restoration commonly focuses on the establishment and maintenance of functioning indigenous ecosystems through the co ...
Plant diversity increases resistance to invasion in the absence of
... were equidistant (3.25 cm) from the center. Upon germination, seedlings were weeded to a final density of one seedling per position within each pot. Plants were staked to confine them to a limited region around the pot and to limit their effects on neighboring pots. To ensure constant photoperiod th ...
... were equidistant (3.25 cm) from the center. Upon germination, seedlings were weeded to a final density of one seedling per position within each pot. Plants were staked to confine them to a limited region around the pot and to limit their effects on neighboring pots. To ensure constant photoperiod th ...
BACKGROUND INFORMATION RI JELLYFISH MONITORING
... abundance and distribution of jellyfish and other gelatinous zooplankton in RI waters. The ctenophore or comb jelly, Mnemiopsis leidyii, is sometimes considered a "nuisance" at bathing beaches, as are other “true” jellyfish such as the Lion’s Mane or the increasingly common stinging sea nettle. Perh ...
... abundance and distribution of jellyfish and other gelatinous zooplankton in RI waters. The ctenophore or comb jelly, Mnemiopsis leidyii, is sometimes considered a "nuisance" at bathing beaches, as are other “true” jellyfish such as the Lion’s Mane or the increasingly common stinging sea nettle. Perh ...
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.