Modeling species fitness in competitive environments
... we can choose the initial distribution of newly born individuals. It can be chosen so that the relative vulnerability of offspring is taken into account, with K only suitably larger than Ks . Most of the above calculation steps are straightforward, except for the step where we account for resource c ...
... we can choose the initial distribution of newly born individuals. It can be chosen so that the relative vulnerability of offspring is taken into account, with K only suitably larger than Ks . Most of the above calculation steps are straightforward, except for the step where we account for resource c ...
An experimentalist`s challenge: when artifacts of intervention interact
... assess the role of artifacts of intervention. Because many experimental artifacts are created by behavioral responses to intervention (see Chapman 1986), the concerns expressed in this paper apply more commonly but not exclusively to animal ecology. Two categories of experiments should first be dist ...
... assess the role of artifacts of intervention. Because many experimental artifacts are created by behavioral responses to intervention (see Chapman 1986), the concerns expressed in this paper apply more commonly but not exclusively to animal ecology. Two categories of experiments should first be dist ...
community
... • Recent evidence of change has led to a nonequilibrium model, which describes communities as constantly changing after being buffeted by disturbances Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... • Recent evidence of change has led to a nonequilibrium model, which describes communities as constantly changing after being buffeted by disturbances Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
04 August Article Ripple
... distributions, whereas more open landscapes offer opportunities for snow to melt or blow away from foraging areas. Such open areas also offer good visibility and provide escape terrain with little snow to slow ungulates fleeing from predators. In mountainous terrain, winters with little snowfall may ...
... distributions, whereas more open landscapes offer opportunities for snow to melt or blow away from foraging areas. Such open areas also offer good visibility and provide escape terrain with little snow to slow ungulates fleeing from predators. In mountainous terrain, winters with little snowfall may ...
Weeping Myall Biodiversity Offset Management Plan
... Threatened Species Conservation Act 1995 (TSC Act). Further to this, some stands of the endangered population in the Hunter Valley also form part of the TSC Act endangered ecological community (EEC) listing of Hunter Valley Weeping Myall Woodland. Detailed floristic studies were conducted as part of ...
... Threatened Species Conservation Act 1995 (TSC Act). Further to this, some stands of the endangered population in the Hunter Valley also form part of the TSC Act endangered ecological community (EEC) listing of Hunter Valley Weeping Myall Woodland. Detailed floristic studies were conducted as part of ...
Brachyura (Decapoda, Crustacea) of phytobenthic
... of wave action, size and slope of the rock surfaces and dry weight of the macroalgae. Collections were done in spring, using 50 x 50 cm quadrats, randomly dropped five times on a transect 10 m long, extended parallel to the water line. Of the twelve Brachyura species identified, the most frequent an ...
... of wave action, size and slope of the rock surfaces and dry weight of the macroalgae. Collections were done in spring, using 50 x 50 cm quadrats, randomly dropped five times on a transect 10 m long, extended parallel to the water line. Of the twelve Brachyura species identified, the most frequent an ...
community
... • Recent evidence of change has led to a nonequilibrium model, which describes communities as constantly changing after being buffeted by disturbances Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... • Recent evidence of change has led to a nonequilibrium model, which describes communities as constantly changing after being buffeted by disturbances Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
INTRODUCTION LIFE STAGES So what did come first, the chicken
... Salmonids, like many other animal species, have specific requirements to ensure the completion of their life cycle. Habitat requirements include everything from cool, clean water to gravel substrates and protective vegetation. If environmental conditions aren’t right, or if their habitat is unhealth ...
... Salmonids, like many other animal species, have specific requirements to ensure the completion of their life cycle. Habitat requirements include everything from cool, clean water to gravel substrates and protective vegetation. If environmental conditions aren’t right, or if their habitat is unhealth ...
link to thesis - Victoria University of Wellington
... effects of heterogeneity in the composition of brown macroalgal stands at the population and community levels for reef fishes. A central ecological challenge is the description of patterns that occur at local scales, and how these are manifested at larger ones. I conducted further sampling across a ...
... effects of heterogeneity in the composition of brown macroalgal stands at the population and community levels for reef fishes. A central ecological challenge is the description of patterns that occur at local scales, and how these are manifested at larger ones. I conducted further sampling across a ...
1VanderWerf
... Abstract The Oahu elepaio (Chasiempis ibidis), an endangered forest bird endemic to the Hawaiian island of Oahu, is threatened by nest predation from alien ship rats (Rattus rattus). Rat control has been implemented in several areas to reduce nest predation, but success of most control programmes ha ...
... Abstract The Oahu elepaio (Chasiempis ibidis), an endangered forest bird endemic to the Hawaiian island of Oahu, is threatened by nest predation from alien ship rats (Rattus rattus). Rat control has been implemented in several areas to reduce nest predation, but success of most control programmes ha ...
Name: Ecology 1. Plants make their own food
... 44. A species of rodent lives in a moist forest climate. Over time, the climate becomes drier and more desert-like. Which of these adaptations would most likely improve the chances that the rodent species could survive as its environment changes? A. ...
... 44. A species of rodent lives in a moist forest climate. Over time, the climate becomes drier and more desert-like. Which of these adaptations would most likely improve the chances that the rodent species could survive as its environment changes? A. ...
Seed germination traits of two plant functional
... species; and Chinnusamy et al. (2005) have reviewed the molecular basis of salt tolerance in plants. However, most previous studies have focused on the responses of plants to salinity within species (e.g., Houle et al. 2001; Megdiche et al. 2007; Rumbaugh et al. 1993). A few studies have been conduc ...
... species; and Chinnusamy et al. (2005) have reviewed the molecular basis of salt tolerance in plants. However, most previous studies have focused on the responses of plants to salinity within species (e.g., Houle et al. 2001; Megdiche et al. 2007; Rumbaugh et al. 1993). A few studies have been conduc ...
Disentangling direct and indirect effects of experimental grassland
... we use a novel grassland management experiment combining manipulations of cutting and fertilization with experimental changes in plant functional group composition (independent of management effects) to disentangle the direct and indirect effects of agricultural management on insect herbivore divers ...
... we use a novel grassland management experiment combining manipulations of cutting and fertilization with experimental changes in plant functional group composition (independent of management effects) to disentangle the direct and indirect effects of agricultural management on insect herbivore divers ...
PDF
... The world situation of fisheries and of the ecosystems they use is not satisfactory and provides the context for a discussion of fishing policies and practices that, directly or indirectly have led to a high degree of unsustainability of the sector at global level, with some highly instructive excep ...
... The world situation of fisheries and of the ecosystems they use is not satisfactory and provides the context for a discussion of fishing policies and practices that, directly or indirectly have led to a high degree of unsustainability of the sector at global level, with some highly instructive excep ...
Effects of shading on relative competitive
... asymmetric, where one species reduces the performance of another and may (or may not) increase its own performance. In natural communities, plant species can be ranked in a competitive hierarchy (an ordered ranking from competitive dominant to competitive subordinate) based on either competitive eff ...
... asymmetric, where one species reduces the performance of another and may (or may not) increase its own performance. In natural communities, plant species can be ranked in a competitive hierarchy (an ordered ranking from competitive dominant to competitive subordinate) based on either competitive eff ...
Recovery strategy for the American Badger
... the American Badger to endangered. In 2004, T. t. jacksoni was added to the Species at Risk in Ontario List as endangered – not regulated. When this list was regulated in 2008, the subspecies was removed from the species name. Little research or monitoring has been conducted on the Ontario populatio ...
... the American Badger to endangered. In 2004, T. t. jacksoni was added to the Species at Risk in Ontario List as endangered – not regulated. When this list was regulated in 2008, the subspecies was removed from the species name. Little research or monitoring has been conducted on the Ontario populatio ...
Ecological Character Displacement in Adaptive Radiation
... phenotypes of ecologically similar species tend to be evenly spaced along a size or other phenotypic trait axis. Examples include canine diameters in the wild Felis cats of Israel (Dayan et al. 1990), mandible lengths of Odontochila and Therates tiger beetles (Pearson 1980), and flowering times of A ...
... phenotypes of ecologically similar species tend to be evenly spaced along a size or other phenotypic trait axis. Examples include canine diameters in the wild Felis cats of Israel (Dayan et al. 1990), mandible lengths of Odontochila and Therates tiger beetles (Pearson 1980), and flowering times of A ...
Extinction and the zoogeography of West Indian land mammals
... Before the 1960s almost all geologists and biogeographers operated under the concept of stable continents and islands. As a consequence, overwater dispersal was the only credible biogeographic hypothesis that could explain the presence of land mammals on oceanic islands such as the West Indies (Matt ...
... Before the 1960s almost all geologists and biogeographers operated under the concept of stable continents and islands. As a consequence, overwater dispersal was the only credible biogeographic hypothesis that could explain the presence of land mammals on oceanic islands such as the West Indies (Matt ...
vernal pool fairy shrimp - Solano County Water Agency
... primary threats to the vernal pool fairy shrimp in Solano County are urban development, agricultural conversions, agricultural use, and water supply and flood control projects. These factors have resulted in the isolation and fragmentation of habitats, often precluding dispersal between populations ...
... primary threats to the vernal pool fairy shrimp in Solano County are urban development, agricultural conversions, agricultural use, and water supply and flood control projects. These factors have resulted in the isolation and fragmentation of habitats, often precluding dispersal between populations ...
Late Pleistocene Megafaunal Extinctions
... low density in the landscape, mature late, and have few offspring. They are slow to recover numbers after any collapse of population. In many regions of the world, the Pleistocene megafauna was dominated by herbivorous mammals, such as the woolly mammoth and woolly rhinoceros. However, in biological ...
... low density in the landscape, mature late, and have few offspring. They are slow to recover numbers after any collapse of population. In many regions of the world, the Pleistocene megafauna was dominated by herbivorous mammals, such as the woolly mammoth and woolly rhinoceros. However, in biological ...
Olden et al. 2011 rusties
... Preventing the spread of nonnative species to new ecosystems requires predictive tools that can be used to help guide resource allocation and prioritize management activities (Ricciardi and Rasmussen 1998, Vander Zanden and Olden 2008). Our ability to confront this challenge may be enhanced if the i ...
... Preventing the spread of nonnative species to new ecosystems requires predictive tools that can be used to help guide resource allocation and prioritize management activities (Ricciardi and Rasmussen 1998, Vander Zanden and Olden 2008). Our ability to confront this challenge may be enhanced if the i ...
8Core Chpater 12short
... disturbance that kills much of the life in an area but leaves the soil intact. • After a disturbance, an area will be reoccupied by a series of species. Ecological succession may take hundreds or thousands of years. ...
... disturbance that kills much of the life in an area but leaves the soil intact. • After a disturbance, an area will be reoccupied by a series of species. Ecological succession may take hundreds or thousands of years. ...
More than a meal integrating nonfeeding interactions into food webs
... Organisms eating each other are only one of many types of well documented and important interactions among species. Other such types include habitat modification, predator interference and facilitation. However, ecological network research has been typically limited to either pure food webs or to ne ...
... Organisms eating each other are only one of many types of well documented and important interactions among species. Other such types include habitat modification, predator interference and facilitation. However, ecological network research has been typically limited to either pure food webs or to ne ...
epq essay – sharks
... labelled as ‘Threatened’ on the IUCN Red List as a result (Beer, Hall 2007: 4). In return, it is essential that humans put forward conservation efforts to try and restore the balance of sharks in the Earth’s oceans since their decline has largely been caused by human activity. Alongside this, shark ...
... labelled as ‘Threatened’ on the IUCN Red List as a result (Beer, Hall 2007: 4). In return, it is essential that humans put forward conservation efforts to try and restore the balance of sharks in the Earth’s oceans since their decline has largely been caused by human activity. Alongside this, shark ...
Frontiers in Polar Biology - Division on Earth and Life Studies
... audience because polar ecosystems play an important role in global-scale phenomena. The key mechanism for reaching nonscientists is the mass media. Education and outreach should especially target the indigenous communities that are part of the arctic ecosystem. This local effort should be two-way wi ...
... audience because polar ecosystems play an important role in global-scale phenomena. The key mechanism for reaching nonscientists is the mass media. Education and outreach should especially target the indigenous communities that are part of the arctic ecosystem. This local effort should be two-way wi ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.