Test 2 Ch 3 and 4.2 - Kenton County Schools
... b. photosynthesis d. all of these ____ 26. The branch of biology dealing with interactions among organisms and between organisms and their environment is called a. economy c. recycling b. modeling d. ecology ____ 27. The part of Earth in which all living things exist is called the a. biome c. ecosys ...
... b. photosynthesis d. all of these ____ 26. The branch of biology dealing with interactions among organisms and between organisms and their environment is called a. economy c. recycling b. modeling d. ecology ____ 27. The part of Earth in which all living things exist is called the a. biome c. ecosys ...
Patterns of distribution and composition of sea urchin - LECAR
... urchins in temperate seas is demonstrated by their formation of vast barren areas when at high densities, decreasing habitat complexity and affecting benthic cover and local community dynamics (Wright et al. 2005). Given their important functional role on temperate reefs, sea urchin populations have ...
... urchins in temperate seas is demonstrated by their formation of vast barren areas when at high densities, decreasing habitat complexity and affecting benthic cover and local community dynamics (Wright et al. 2005). Given their important functional role on temperate reefs, sea urchin populations have ...
The Ecological Role of Sharks on Coral Reefs
... Sharks have the potential to modify the community structure of marine food webs through direct or indirect interactions resulting from the consumption of prey or the alteration of their behaviours [9,12]. The loss of large apex sharks has caused trophic cascades in temperate marine ecosystems [9,24] ...
... Sharks have the potential to modify the community structure of marine food webs through direct or indirect interactions resulting from the consumption of prey or the alteration of their behaviours [9,12]. The loss of large apex sharks has caused trophic cascades in temperate marine ecosystems [9,24] ...
The Return of the Wolf
... Apex predators may have both direct and indirect effects on other species through predation and competition. I investigated the effects of wolves (Canis lupus) on prey species, competitors (including humans) and the scavenging guild after the recolonization by wolves of the Scandinavian Peninsula. F ...
... Apex predators may have both direct and indirect effects on other species through predation and competition. I investigated the effects of wolves (Canis lupus) on prey species, competitors (including humans) and the scavenging guild after the recolonization by wolves of the Scandinavian Peninsula. F ...
STRUCTURE OF ANT ASSEMBLAGES IN A MIDDLE
... Species diversity was computed by the means of both Shannon-Wiener (Shannon and Weaver 1949) and Simpson-Yule (Pielou 1975) indices. The former was used to characterize the diversities of different successional ant assemblages, and the latter to compute correlation between the different diversities ...
... Species diversity was computed by the means of both Shannon-Wiener (Shannon and Weaver 1949) and Simpson-Yule (Pielou 1975) indices. The former was used to characterize the diversities of different successional ant assemblages, and the latter to compute correlation between the different diversities ...
West Indian Manatee Carrying Capacity
... warm water capacity, SAV, and available fresh water. For the manatee, these are the only naturally occurring and constantly present limitations to population – or in other words the elements defining CC. The greatest danger of continued mis-classification of the manatee is the inability to actually ...
... warm water capacity, SAV, and available fresh water. For the manatee, these are the only naturally occurring and constantly present limitations to population – or in other words the elements defining CC. The greatest danger of continued mis-classification of the manatee is the inability to actually ...
Plant communities as drivers of soil respiration
... characteristics on soil carbon dioxide efflux (R) is a key prerequisite for accurate prediction of the future carbon (C) balance of terrestrial ecosystems under climate change. However, developing a mechanistic understanding of the determinants of R is complicated by the presence of multiple differe ...
... characteristics on soil carbon dioxide efflux (R) is a key prerequisite for accurate prediction of the future carbon (C) balance of terrestrial ecosystems under climate change. However, developing a mechanistic understanding of the determinants of R is complicated by the presence of multiple differe ...
sea urchins on the move - Integrative Biology
... Integrative Biology, University of California, Berkeley, California 94720 USA Abstract. The island of Mo’orea in French Polynesia functions as a model system to study the biological and ecological concept of niche differentiation, whereby two or more species are forced into different habitats so as ...
... Integrative Biology, University of California, Berkeley, California 94720 USA Abstract. The island of Mo’orea in French Polynesia functions as a model system to study the biological and ecological concept of niche differentiation, whereby two or more species are forced into different habitats so as ...
Use of skeletochronological analysis to estimate the age of
... ABSTRACT: Although growth rate and age data are essential for leatherback management, estimates of these demographic parameters remain speculative due to the cryptic life history of this endangered species. Skeletochronological analysis of scleral ossicles obtained from 8 captive, known-age and 33 w ...
... ABSTRACT: Although growth rate and age data are essential for leatherback management, estimates of these demographic parameters remain speculative due to the cryptic life history of this endangered species. Skeletochronological analysis of scleral ossicles obtained from 8 captive, known-age and 33 w ...
Parks Conservation and Lands - Commissioner for Sustainability
... in these years contracts to the higher quality habitats. Higher quality habitat that serves as ‘drought’ refuges are critical to a species’ long-term existance. When favourable conditions return, poorer quality habitats are recolonised through dispersal from better quality habitats. Similarly, wild ...
... in these years contracts to the higher quality habitats. Higher quality habitat that serves as ‘drought’ refuges are critical to a species’ long-term existance. When favourable conditions return, poorer quality habitats are recolonised through dispersal from better quality habitats. Similarly, wild ...
Annual Report - Panay Eco-Social Conservation Project
... and Mr. Georg Gewers, a Berlin architect, long term supporters of the project, donated funds usual. However, among the European supporters diversion of funds going to the vast numbers of refugees come from Near East and the Balkans were noticeable in the past year. This competition, based one-sided ...
... and Mr. Georg Gewers, a Berlin architect, long term supporters of the project, donated funds usual. However, among the European supporters diversion of funds going to the vast numbers of refugees come from Near East and the Balkans were noticeable in the past year. This competition, based one-sided ...
Dynamic mimicry in an Indo Malyan Octopus
... Unusual genetic architecture may be required to shift from one model to another (Charlesworth & Charlesworth 1975). The `dynamic mimicry’ (Norman et al. 1999) of the mimic octopus may escape this genetic constraint because it is not employed continuously: all individuals can carry alleles for all fo ...
... Unusual genetic architecture may be required to shift from one model to another (Charlesworth & Charlesworth 1975). The `dynamic mimicry’ (Norman et al. 1999) of the mimic octopus may escape this genetic constraint because it is not employed continuously: all individuals can carry alleles for all fo ...
2 How Do Population Changes Happen?
... $URING $ARWINS TIME A SCIENTIST NAMED 4HOMAS -ALTHUS WAS STUDYING HUMAN POPULATIONS (E OBSERVED ...
... $URING $ARWINS TIME A SCIENTIST NAMED 4HOMAS -ALTHUS WAS STUDYING HUMAN POPULATIONS (E OBSERVED ...
Tesis Maestria en Ciencias de Marcos A. Caraballo Ortiz
... Dirzo 2000, Severns 2003). These perturbations are especially relevant to tropical selfincompatible plants, as they could result in a population decline and possible isolation of ...
... Dirzo 2000, Severns 2003). These perturbations are especially relevant to tropical selfincompatible plants, as they could result in a population decline and possible isolation of ...
22.Horan
... such that the net effect of such invasion could be positive or negative. In this paper, we examine a case in which the introduction of a biocontrol agent turns the prey nuisance species into a source of value. Zivin et al. (2000) define multiple-use species as species that may cause net benefits or ...
... such that the net effect of such invasion could be positive or negative. In this paper, we examine a case in which the introduction of a biocontrol agent turns the prey nuisance species into a source of value. Zivin et al. (2000) define multiple-use species as species that may cause net benefits or ...
the eastern quoll - Australian Wildlife Society
... withstand the loss of a few juveniles, without any negative effects at the population level. However, with quoll populations currently at much lower densities, the loss of only a few juveniles is now enough to prevent populations from recovering. So it seems that a period of unsuitable weather reduc ...
... withstand the loss of a few juveniles, without any negative effects at the population level. However, with quoll populations currently at much lower densities, the loss of only a few juveniles is now enough to prevent populations from recovering. So it seems that a period of unsuitable weather reduc ...
Effects of tree control method, seed addition, and introduced
... were left untreated as experimental controls. One long-term aim of the research project was to test the effect of treatment area size on natural regeneration and growth of native plants (not reported here), so the area treated within each patch was either ‘small’ (diameter approximately equivalent t ...
... were left untreated as experimental controls. One long-term aim of the research project was to test the effect of treatment area size on natural regeneration and growth of native plants (not reported here), so the area treated within each patch was either ‘small’ (diameter approximately equivalent t ...
Rethinking the Theoretical Foundation of Sociobiology
... that turned multilevel selection theory into what became known as “the theory of individual selection.” Ever since, students have been taught that group selection is possible in principle, but can be ignored in practice. Seemingly other oriented behaviors must be explained as forms of self-interest ...
... that turned multilevel selection theory into what became known as “the theory of individual selection.” Ever since, students have been taught that group selection is possible in principle, but can be ignored in practice. Seemingly other oriented behaviors must be explained as forms of self-interest ...
Population and Ecosystem Attribute Trends of Aquatic
... As a statistical consultant my role was to provide Professor Piccard with numerical and graphical analyses to see if there truly was any relationship between species counts and precipitation. The first equation was used to predict the overall population number based on the amount of precipitation (i ...
... As a statistical consultant my role was to provide Professor Piccard with numerical and graphical analyses to see if there truly was any relationship between species counts and precipitation. The first equation was used to predict the overall population number based on the amount of precipitation (i ...
Identification of gamma-ray sources in the multi
... Clearly: all 66 (40-100) AGNs that have been claimed to be related with EGRET sources DO NOT have simultaneous multiwavelength studies! Identification is done by statistical methods based on position only (e.g. Mattox) and the correlated variability for some individuals gives support to the existenc ...
... Clearly: all 66 (40-100) AGNs that have been claimed to be related with EGRET sources DO NOT have simultaneous multiwavelength studies! Identification is done by statistical methods based on position only (e.g. Mattox) and the correlated variability for some individuals gives support to the existenc ...
African Herp News 58, December 2012
... With amphibians now recognised as the most threatened vertebrate group on Earth, with 32% of species Red Listed in threatened categories (IUCN 2012) conservation initiatives are gradually gaining momentum globally. Trends in South Africa follow those on the global scene, with 29% of our frog species ...
... With amphibians now recognised as the most threatened vertebrate group on Earth, with 32% of species Red Listed in threatened categories (IUCN 2012) conservation initiatives are gradually gaining momentum globally. Trends in South Africa follow those on the global scene, with 29% of our frog species ...
Assessing the impact of introduced cats on island biodiversity by
... prey availability and test whether cats consume prey taxa in proportion to their abundance. We expected that if cats were generalist predators differences in diet composition across seasons would correlate with availability of prey. Because the impacts of cats on islands depend not only on their die ...
... prey availability and test whether cats consume prey taxa in proportion to their abundance. We expected that if cats were generalist predators differences in diet composition across seasons would correlate with availability of prey. Because the impacts of cats on islands depend not only on their die ...
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... (Convey 2007a), they remain simple in global terms, commonly lacking or with low diversity in specific taxonomic or biological functional groups. Therefore they are thought to lack the functional redundancy that is typical of more diverse ecosystems. This lack of indigenous diversity raises the poss ...
... (Convey 2007a), they remain simple in global terms, commonly lacking or with low diversity in specific taxonomic or biological functional groups. Therefore they are thought to lack the functional redundancy that is typical of more diverse ecosystems. This lack of indigenous diversity raises the poss ...
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.