Plant fitness in a rapidly changing world
... dynamics (Anderson & Gezon, 2015). Effect sizes are reported as the natural log of odds ratios for binary fitness components (a) and natural log of response ratios for continuous fecundity variables (b, c) in treatment relative to control groups. Values < 0 indicate that fitness was lower under simu ...
... dynamics (Anderson & Gezon, 2015). Effect sizes are reported as the natural log of odds ratios for binary fitness components (a) and natural log of response ratios for continuous fecundity variables (b, c) in treatment relative to control groups. Values < 0 indicate that fitness was lower under simu ...
Threatened Species Assessment Guidelines
... important to have a thorough understanding of these terms as they apply to the assessment. Subject site means the area directly affected by the proposal. Study area means the subject site and any additional areas which are likely to be affected by the proposal, either directly or indirectly. The stu ...
... important to have a thorough understanding of these terms as they apply to the assessment. Subject site means the area directly affected by the proposal. Study area means the subject site and any additional areas which are likely to be affected by the proposal, either directly or indirectly. The stu ...
San Diego Children and Nature Collaborative Curriculm Sample.
... San Diego’s Native Habitats: Shrublands Teacher’s Guide was developed by the San Diego Children and Nature Collaborative to integrate native habitat content into your existing classroom curriculum. Utilizing local habitats and outdoor activities brings your classroom content to life in an authentic ...
... San Diego’s Native Habitats: Shrublands Teacher’s Guide was developed by the San Diego Children and Nature Collaborative to integrate native habitat content into your existing classroom curriculum. Utilizing local habitats and outdoor activities brings your classroom content to life in an authentic ...
UNEP/CMS/ScC18/Doc.10.1
... mitigated, and that migratory species are managed under commonly agreed guidelines. Where appropriate, this should be done within the framework of applicable CMS instruments. (Parties, scientific community, international, intergovernmental and other relevant organizations); [S] and o Identify migrat ...
... mitigated, and that migratory species are managed under commonly agreed guidelines. Where appropriate, this should be done within the framework of applicable CMS instruments. (Parties, scientific community, international, intergovernmental and other relevant organizations); [S] and o Identify migrat ...
Accidental experiments: ecological and evolutionary insights and
... basic studies and a problem to resolve or quantify in applied studies. However, these ‘accidental experiments’ also represent opportunities to gain fundamental insight into ecological and evolutionary processes, especially when they result in perturbations that are large or long in duration and diffic ...
... basic studies and a problem to resolve or quantify in applied studies. However, these ‘accidental experiments’ also represent opportunities to gain fundamental insight into ecological and evolutionary processes, especially when they result in perturbations that are large or long in duration and diffic ...
Ecological Consequences of Doubling the Atmospheric CO2
... of carbon, nitrogen and other nutrients; and all the water, including ponds, lakes, rivers and oceans. On a time scale that covers the short-term and the medium-term (i.e., up to 10 years), there should be measurable changes in the outputs of the local ecosystem services domain. The net primary prod ...
... of carbon, nitrogen and other nutrients; and all the water, including ponds, lakes, rivers and oceans. On a time scale that covers the short-term and the medium-term (i.e., up to 10 years), there should be measurable changes in the outputs of the local ecosystem services domain. The net primary prod ...
Food web structure and habitat loss
... and butter¯y±plant communities (Steffan-Dewenter & Tscharntke 2000). Consequently, prey species outbreaks may be more common once their natural enemies have been driven extinct by destruction of habitat (Kruess & Tscharntke 1994). Second, habitat loss has a more severe effect on species that are bet ...
... and butter¯y±plant communities (Steffan-Dewenter & Tscharntke 2000). Consequently, prey species outbreaks may be more common once their natural enemies have been driven extinct by destruction of habitat (Kruess & Tscharntke 1994). Second, habitat loss has a more severe effect on species that are bet ...
report - DIGITAL.CSIC, el repositorio institucional
... Kruess & Tscharntke 1994; Bascompte & Sole’ 1998a; Gilbert et al. 1998; Holt et al. 1999; Steffan-Dewenter & Tscharntke 2000). This is in agreement with empirical observations in host-parasitoid (Kruess & Tscharntke 1994) and butterfly—plant communities (Steffan-Dewenter & Tscharntke 2000). Conseque ...
... Kruess & Tscharntke 1994; Bascompte & Sole’ 1998a; Gilbert et al. 1998; Holt et al. 1999; Steffan-Dewenter & Tscharntke 2000). This is in agreement with empirical observations in host-parasitoid (Kruess & Tscharntke 1994) and butterfly—plant communities (Steffan-Dewenter & Tscharntke 2000). Conseque ...
Lesson 2
... prevent the spread of disease-causing organisms that can lead to death. • Human populations in some parts of the world are decreasing in size because of factors like disease, drought, and natural disasters. ...
... prevent the spread of disease-causing organisms that can lead to death. • Human populations in some parts of the world are decreasing in size because of factors like disease, drought, and natural disasters. ...
Unit 3 Environmental Science: Energy
... vegetation leave a series of fragments of intact habitat. If the pockets of remnant vegetation are isolated and too small to support viable populations of species, or if the fragments are not connected, the impact can be significant. ...
... vegetation leave a series of fragments of intact habitat. If the pockets of remnant vegetation are isolated and too small to support viable populations of species, or if the fragments are not connected, the impact can be significant. ...
BISC530: Biology Conservation Kedong Yin
... greater than local mortality and individuals disperse outside their natural patch to find a place to settle and breed. ...
... greater than local mortality and individuals disperse outside their natural patch to find a place to settle and breed. ...
Intercontinental biotic invasions: what can we learn from native
... introduced ranges for Alliaria petiolata, introduced to North America from Europe 125-years ago. It is possible that some introduced species intrinsically have high invasiveness, but because of the presence of natural enemies or lack of widespread habitat disturbance in their native ranges, they hav ...
... introduced ranges for Alliaria petiolata, introduced to North America from Europe 125-years ago. It is possible that some introduced species intrinsically have high invasiveness, but because of the presence of natural enemies or lack of widespread habitat disturbance in their native ranges, they hav ...
butterfly habitat - North American Butterfly Association
... plowed decades ago. The attempt at crops failed quickly, allowing much of the native flora to re-establish, from plants along the edges of the field and seeds still in the soil. But the temporary destruction of the barren eliminated the most sensitive species of butterflies requiring that habitat. I ...
... plowed decades ago. The attempt at crops failed quickly, allowing much of the native flora to re-establish, from plants along the edges of the field and seeds still in the soil. But the temporary destruction of the barren eliminated the most sensitive species of butterflies requiring that habitat. I ...
Modeling Biodiversity Dynamics in Countryside and Native Habitats
... Dose–response models are based on correlations between the level of an ecosystem change driver and the biodiversity response. For instance, the GLOBIO model (Alkemade et al., 2009) uses a matrix with estimates of changes in mean species abundances for conversions between any two types of land use, b ...
... Dose–response models are based on correlations between the level of an ecosystem change driver and the biodiversity response. For instance, the GLOBIO model (Alkemade et al., 2009) uses a matrix with estimates of changes in mean species abundances for conversions between any two types of land use, b ...
Understanding Populations Section 1
... • Eventually, resources are used up or the environment changes, and deaths increase or births decrease. • Under the forces of natural selection in a given environment, only some members of any population will survive and reproduce. Thus, the properties of a population may change over time. ...
... • Eventually, resources are used up or the environment changes, and deaths increase or births decrease. • Under the forces of natural selection in a given environment, only some members of any population will survive and reproduce. Thus, the properties of a population may change over time. ...
lecture 25 ch 22 community development
... Greater proportion of nutrients resides in organic matter than in soil. Animal communities follow stages of plant succession ...
... Greater proportion of nutrients resides in organic matter than in soil. Animal communities follow stages of plant succession ...
Reading Quiz - AP Environmental Science
... 15. A population of grazing, deer-like mammals is found on a remote island in forested New Guinea. Which of the following information is most important in determining whether these mammals all belong to a single species? a. That they share 99% of their physical traits b. Whether they can breed with ...
... 15. A population of grazing, deer-like mammals is found on a remote island in forested New Guinea. Which of the following information is most important in determining whether these mammals all belong to a single species? a. That they share 99% of their physical traits b. Whether they can breed with ...
Invasive Species
... Management of the Gypsy Moth The Gypsy Moth can be controlled in four ways… Natural Management- Air temperatures of minus 20°F or colder during the winter will destroy exposed eggs. Freezing temperatures in early May, after hatch, may also kill many larvae. Nonchemical or Mechanical Managemen ...
... Management of the Gypsy Moth The Gypsy Moth can be controlled in four ways… Natural Management- Air temperatures of minus 20°F or colder during the winter will destroy exposed eggs. Freezing temperatures in early May, after hatch, may also kill many larvae. Nonchemical or Mechanical Managemen ...
Principles of population viability analysis (PVA)
... Often we break down R into estimates of birth and death rates. At the population level, birth rate (fecundity: f) is defined as the average number of births in a given time period, and death (or mortality: m) rate is defined as the average number of deaths in a given period. Estimation of fecundity ...
... Often we break down R into estimates of birth and death rates. At the population level, birth rate (fecundity: f) is defined as the average number of births in a given time period, and death (or mortality: m) rate is defined as the average number of deaths in a given period. Estimation of fecundity ...
Environmental Pressures: Human Activities That Affect
... GNU Free Documentation License, Version 1.2 or any later version and the Creative Commons AttributionShareAlike 3.0 License. It is attributed to Wikipedia user Skatebiker and the original version can be found here. ...
... GNU Free Documentation License, Version 1.2 or any later version and the Creative Commons AttributionShareAlike 3.0 License. It is attributed to Wikipedia user Skatebiker and the original version can be found here. ...
Natural Causes of Extinction
... Extinctions caused by humans are generally considered to be a recent phenomena. HOWEVER: ...
... Extinctions caused by humans are generally considered to be a recent phenomena. HOWEVER: ...
Now you see them, now you don`t! – population crashes of
... It achieved large populations in parts of Spain, possibly aided by further introductions, but it dwindled during the last half of the 20th century so that it has not been found in Spain for 20 years (R. Eritja, pers. comm.). Although there is no direct evidence of an interaction with the subsequentl ...
... It achieved large populations in parts of Spain, possibly aided by further introductions, but it dwindled during the last half of the 20th century so that it has not been found in Spain for 20 years (R. Eritja, pers. comm.). Although there is no direct evidence of an interaction with the subsequentl ...
Ziv 2000
... Abstract. Larger species tend to occupy more habitats, but a theoretical framework for the pattern is lacking. I modified the continuous-time logistic equation of population growth in two ways to allow for such a habitat-based theoretical framework. First, I separated birth rate from death rate. Sec ...
... Abstract. Larger species tend to occupy more habitats, but a theoretical framework for the pattern is lacking. I modified the continuous-time logistic equation of population growth in two ways to allow for such a habitat-based theoretical framework. First, I separated birth rate from death rate. Sec ...
- Knowledge and management of aquatic ecosystems
... 2003). At these locations, the released individuals may indirectly exclude or outcompete native turtle species (Cadi and Joly, 2003; Cadi and Joly 2004; Polo-Cavia et al., 2008) and can indeed negatively affect other species in aquatic communities (Mlíkovský and Stýblo, 2006; Teillac-Deschamps and P ...
... 2003). At these locations, the released individuals may indirectly exclude or outcompete native turtle species (Cadi and Joly, 2003; Cadi and Joly 2004; Polo-Cavia et al., 2008) and can indeed negatively affect other species in aquatic communities (Mlíkovský and Stýblo, 2006; Teillac-Deschamps and P ...