Chapter 3 - Santa Rosa Home
... population density Density-dependent factors = limiting factors whose influence is affected by population density Increased density increases the risk of predation, disease, and competition Results in the logistic growth curve Larger populations have stronger effects of limiting factors ...
... population density Density-dependent factors = limiting factors whose influence is affected by population density Increased density increases the risk of predation, disease, and competition Results in the logistic growth curve Larger populations have stronger effects of limiting factors ...
Red swamp crayfish Scientific name: Procambarus clarkii
... and destruction of hydrophytes can impact other trophic levels in the food web, such as competion with native fish that feed on invertebrates (Lodge et al. 2000). ...
... and destruction of hydrophytes can impact other trophic levels in the food web, such as competion with native fish that feed on invertebrates (Lodge et al. 2000). ...
Dispersal and persistence
... and vicariance (population-splitting events)? Eclecticist - dispersal and vicariance events are both important ...
... and vicariance (population-splitting events)? Eclecticist - dispersal and vicariance events are both important ...
a landscape simulation model for understanding animal
... processes affecting species, populations, and communities (hence, processbased model); in most cases it goes beyond the simple description of a process to characterize it by its mechanics. Second, it avoids arbitrary functions and arbitrary value assignments by relying on empirical ecological findin ...
... processes affecting species, populations, and communities (hence, processbased model); in most cases it goes beyond the simple description of a process to characterize it by its mechanics. Second, it avoids arbitrary functions and arbitrary value assignments by relying on empirical ecological findin ...
Habitat destruction and metacommunity size in pen
... Metapopulation theory has been used to explain how sources and sinks allow species persistence in habitat fragments (e.g. Gonzalez et al. 1998; Mouquet & Loreau 2003). Similarly, habitat destruction involves the removal of a local community (or fragment, if the community is already fragmented) from ...
... Metapopulation theory has been used to explain how sources and sinks allow species persistence in habitat fragments (e.g. Gonzalez et al. 1998; Mouquet & Loreau 2003). Similarly, habitat destruction involves the removal of a local community (or fragment, if the community is already fragmented) from ...
Moving beyond assumptions to understand abundance distributions
... species responses to climate change. Ceballos and Ehrlich [61] emphasized that conservation efforts should focus on extinctions of populations rather than of species, because the former is a prelude to the latter. The authors used historical range maps to estimate range loss, which they used as a pr ...
... species responses to climate change. Ceballos and Ehrlich [61] emphasized that conservation efforts should focus on extinctions of populations rather than of species, because the former is a prelude to the latter. The authors used historical range maps to estimate range loss, which they used as a pr ...
Peterson et al. 2013
... Each species was treated as a “target” in three treatments: alone, with M. guttatus, and with M. laciniatus. We planted three to four seeds (randomly thinned to one plant) from the “target” species seed pool into the center of 38 mm by 38 mm by 57 mm pots, and for neighbor treatments, we planted fou ...
... Each species was treated as a “target” in three treatments: alone, with M. guttatus, and with M. laciniatus. We planted three to four seeds (randomly thinned to one plant) from the “target” species seed pool into the center of 38 mm by 38 mm by 57 mm pots, and for neighbor treatments, we planted fou ...
The metacommunity concept
... ideas that come from the study of metapopulations. In this paper, we restrict ourselves only to metacommunity definitions that consider space implicitly and not explicitly (e.g. spatially explicit models where the location of individuals is tracked). We recognize, however, that there are some import ...
... ideas that come from the study of metapopulations. In this paper, we restrict ourselves only to metacommunity definitions that consider space implicitly and not explicitly (e.g. spatially explicit models where the location of individuals is tracked). We recognize, however, that there are some import ...
Meadow viper Vipera ursinii
... less severe in montane areas, but conifer plantations and the construction of tourist resorts, ski runs, dams etc. have caused some loss of habitat; • Habitat fragmentation: Habitat destruction leads to habitat fragmentation, limiting population size and preventing re-colonization and genetic interc ...
... less severe in montane areas, but conifer plantations and the construction of tourist resorts, ski runs, dams etc. have caused some loss of habitat; • Habitat fragmentation: Habitat destruction leads to habitat fragmentation, limiting population size and preventing re-colonization and genetic interc ...
Leibold et al. 2004
... ideas that come from the study of metapopulations. In this paper, we restrict ourselves only to metacommunity definitions that consider space implicitly and not explicitly (e.g. spatially explicit models where the location of individuals is tracked). We recognize, however, that there are some import ...
... ideas that come from the study of metapopulations. In this paper, we restrict ourselves only to metacommunity definitions that consider space implicitly and not explicitly (e.g. spatially explicit models where the location of individuals is tracked). We recognize, however, that there are some import ...
Coevolution between native and invasive plant competitors
... (B). The outcome of coevolution between native and invasive species may rely in part on the relative diversity between interacting native and invasive populations for traits that affect fitness in invaded systems (B). Dotted lines indicate possible result of long-term consistency in coevolutionary a ...
... (B). The outcome of coevolution between native and invasive species may rely in part on the relative diversity between interacting native and invasive populations for traits that affect fitness in invaded systems (B). Dotted lines indicate possible result of long-term consistency in coevolutionary a ...
Documentos a serem entregues pelo SWG “Mosquitoes”
... Harm to or loss of other species. The released LM mosquitoes might cause other valued non-pest species (for instance fishes the mechanism how this could come about is not immediately clear) to become less abundant. These include species of economic, cultural, and/or social importance such as wild fo ...
... Harm to or loss of other species. The released LM mosquitoes might cause other valued non-pest species (for instance fishes the mechanism how this could come about is not immediately clear) to become less abundant. These include species of economic, cultural, and/or social importance such as wild fo ...
- Wiley Online Library
... vs predators), and the response level (population vs community). Compounded stressors are thus likely to yield ecological surprises in real ecosystems [20]. This means that it will be difficult to make general predictions about how individual-level responses to climate and toxicant stressors will pro ...
... vs predators), and the response level (population vs community). Compounded stressors are thus likely to yield ecological surprises in real ecosystems [20]. This means that it will be difficult to make general predictions about how individual-level responses to climate and toxicant stressors will pro ...
Cadotte2007 Ecology
... at least at low to intermediate frequencies, is a beta increasing process (Warren 1996, Ostman et al. 2006). Traditional IDH studies examine patterns at the local scale in one of two ways: either as time since disturbance patterns within an individual patch; or as changes in average richness in mult ...
... at least at low to intermediate frequencies, is a beta increasing process (Warren 1996, Ostman et al. 2006). Traditional IDH studies examine patterns at the local scale in one of two ways: either as time since disturbance patterns within an individual patch; or as changes in average richness in mult ...
On the integration of biotic interaction and
... models (SDMs, Jeschke and Strayer (2008)). Despite all of its criticisms, SDMs remain remarkably popular and operational for conservation ecology (Guisan et al. 2013). Recent attempts to improve the quantification of the niche include the addition of experimental assessments of the fundamental physi ...
... models (SDMs, Jeschke and Strayer (2008)). Despite all of its criticisms, SDMs remain remarkably popular and operational for conservation ecology (Guisan et al. 2013). Recent attempts to improve the quantification of the niche include the addition of experimental assessments of the fundamental physi ...
Chapter 266 - Global Declines of Amphibians
... In characterizing the ecology of species that have declined, most attention has focused on high- or mid-altitude species that are associated with streams, have small ranges (implying higher habitat specificity), and low reproductive rates, but there are many exceptions. Species that have aquatic bre ...
... In characterizing the ecology of species that have declined, most attention has focused on high- or mid-altitude species that are associated with streams, have small ranges (implying higher habitat specificity), and low reproductive rates, but there are many exceptions. Species that have aquatic bre ...
The ecology of inland waters
... someone talks whilst the rest listen. There will usually be questions after a talk, or in a later discussion section, but these too are essentially interactions between only two people (the speaker and the questioner) and only rarely does a real discussion ensue. In this workshop, where a major them ...
... someone talks whilst the rest listen. There will usually be questions after a talk, or in a later discussion section, but these too are essentially interactions between only two people (the speaker and the questioner) and only rarely does a real discussion ensue. In this workshop, where a major them ...
The Gray Zone: Relationships between habitat loss and marine
... The most common usage of species ‘diversity’ typically refers to the number of species in a given area of habitat (species richness) and on their relative abundances. Indeed a major focus in conservation biology is the prediction of the decrease in species number and abundance in response to a reduc ...
... The most common usage of species ‘diversity’ typically refers to the number of species in a given area of habitat (species richness) and on their relative abundances. Indeed a major focus in conservation biology is the prediction of the decrease in species number and abundance in response to a reduc ...
Blue-grey Taildropper Fact Sheet
... range are scattered and isolated (Pearson et al, 2012), and a separated population is known to exist in northern Idaho (Ovaska et al, 2004). Overall, the distribution is fragmented across its range, leading to isolated populations. As of March 2014, there have been 13 records of Blue-grey Taildroppe ...
... range are scattered and isolated (Pearson et al, 2012), and a separated population is known to exist in northern Idaho (Ovaska et al, 2004). Overall, the distribution is fragmented across its range, leading to isolated populations. As of March 2014, there have been 13 records of Blue-grey Taildroppe ...
Summary of Working Group Results
... observations and research in the field are relatively recent phenomena, and many unexplored questions exist that offer opportunities for productive investigations, collaborations and management applications of research results. The list below identifies areas that we think could profit from addition ...
... observations and research in the field are relatively recent phenomena, and many unexplored questions exist that offer opportunities for productive investigations, collaborations and management applications of research results. The list below identifies areas that we think could profit from addition ...
biogeographical region
... • SUF (Sufficient) No further sites needed • IN MAJ (Insufficient major) No sites proposed at present. A major effort to designate sites is needed. • IN MOD (Insufficient moderate). One or a number of additional sites (or maybe extension to sites) required. • IN MOD GEO - means that additional site( ...
... • SUF (Sufficient) No further sites needed • IN MAJ (Insufficient major) No sites proposed at present. A major effort to designate sites is needed. • IN MOD (Insufficient moderate). One or a number of additional sites (or maybe extension to sites) required. • IN MOD GEO - means that additional site( ...
Impacts of climate change on the future of biodiversity
... changes are not limited to this: shifts to a different habitat at the local or micro-habitat levels are also relevant. One of the best-documented responses – from both palaeontological records and recent observations – is a spatial shift of species tracking suitable climatic conditions at the region ...
... changes are not limited to this: shifts to a different habitat at the local or micro-habitat levels are also relevant. One of the best-documented responses – from both palaeontological records and recent observations – is a spatial shift of species tracking suitable climatic conditions at the region ...
Predicting distributions of species richness and species size in
... also be expected to decrease with increasing spatial commonness of the habitat type. Accordingly, the species pool size, defined by the opportunity for net species accumulation (speciation minus extinction) should also have a corresponding right-skewed distribution on both habitat gradients (Fig. 1c ...
... also be expected to decrease with increasing spatial commonness of the habitat type. Accordingly, the species pool size, defined by the opportunity for net species accumulation (speciation minus extinction) should also have a corresponding right-skewed distribution on both habitat gradients (Fig. 1c ...
The Global Decline of Reptiles, Deja Vu Amphibians
... and generally are no cause for alarm. However, not all declines are natural. In this article, we consider the vulnerability of reptiles within the context of the factors known or suspected to be associated with amphibian declines, using the six categories of concern established by Partners in Amphib ...
... and generally are no cause for alarm. However, not all declines are natural. In this article, we consider the vulnerability of reptiles within the context of the factors known or suspected to be associated with amphibian declines, using the six categories of concern established by Partners in Amphib ...
A horizon scanning assessment of current and potential future
... and potential future issues facing migratory shorebirds (Charadriiformes). We have chosen this taxonomic group of almost 200 species because: (1) they are found throughout the world, and include some of the longest-distance migratory species that may therefore be at risk from conservation threats gl ...
... and potential future issues facing migratory shorebirds (Charadriiformes). We have chosen this taxonomic group of almost 200 species because: (1) they are found throughout the world, and include some of the longest-distance migratory species that may therefore be at risk from conservation threats gl ...