How do ecologists select and use indicator species
... Typically, the dynamics of a single population or a group of populations of one or more taxa are monitored as IS. Because the demographic parameters of a single population (e.g. abundance, density, age/size structure, reproduction rate and growth rate) are easy to measure and thought to be sensitive ...
... Typically, the dynamics of a single population or a group of populations of one or more taxa are monitored as IS. Because the demographic parameters of a single population (e.g. abundance, density, age/size structure, reproduction rate and growth rate) are easy to measure and thought to be sensitive ...
click here to download a pdf of this report
... and students will come away with a greater ecological and evolutionary understanding of the Hawaiian biota. Greater sensitivity to the problem of alien species in general may prevent future introductions and create an early warning network of informed citizens. Community support and involvement with ...
... and students will come away with a greater ecological and evolutionary understanding of the Hawaiian biota. Greater sensitivity to the problem of alien species in general may prevent future introductions and create an early warning network of informed citizens. Community support and involvement with ...
Loss of mammalian species from the South American Gran Chaco
... mammals found there. 2. We assess the potential consequences of the loss of large and medium-sized native mammalian herbivores and frugivores on Chacoan ecosystem functioning, focusing on their role and conservation status in the Argentine Chaco. 3. Our review shows that almost 50% of the largest fr ...
... mammals found there. 2. We assess the potential consequences of the loss of large and medium-sized native mammalian herbivores and frugivores on Chacoan ecosystem functioning, focusing on their role and conservation status in the Argentine Chaco. 3. Our review shows that almost 50% of the largest fr ...
13.1 Ecologists Study Relationships / 13.2 Biotic & Abiotic Organism
... While the earth is huge, life is found in a very narrow layer, called the biosphere. If the earth could be shrunk to the size of an apple, the biosphere would be no thicker than the apple's skin. ...
... While the earth is huge, life is found in a very narrow layer, called the biosphere. If the earth could be shrunk to the size of an apple, the biosphere would be no thicker than the apple's skin. ...
Pimm_pages 1..10 - Department of Geographical Sciences
... (22). The rates for individual clades are only exceptionally >1. Valente et al. (25) specifically looked for exceptionally high rates, finding them >1 for the genus Dianthus (carnations, Caryophyllaceae), Andean Lupinus (lupins, Fabaceae), Zosterops (white-eyes, Zosteropidae), and cichlids in East A ...
... (22). The rates for individual clades are only exceptionally >1. Valente et al. (25) specifically looked for exceptionally high rates, finding them >1 for the genus Dianthus (carnations, Caryophyllaceae), Andean Lupinus (lupins, Fabaceae), Zosterops (white-eyes, Zosteropidae), and cichlids in East A ...
Effects of short-term warming on low and high latitude forest ant
... climatic change than those at high latitudes, ecological communities at low latitudes could be more resilient to environmental change because they are generally more diverse (Wittebolle et al. 2009). Yet, because most experimental studies of the effects of warming have been conducted at single sites ...
... climatic change than those at high latitudes, ecological communities at low latitudes could be more resilient to environmental change because they are generally more diverse (Wittebolle et al. 2009). Yet, because most experimental studies of the effects of warming have been conducted at single sites ...
How Habitat Edges Change Species Interactions
... An "edge" is one of those ecological features that is hard to define verbally but yet immediately recognizable to observers in the field. Edges are often identifiable as the boundaries separating regions featuring different species of stationary organisms (e.g., mature trees vs. early successional s ...
... An "edge" is one of those ecological features that is hard to define verbally but yet immediately recognizable to observers in the field. Edges are often identifiable as the boundaries separating regions featuring different species of stationary organisms (e.g., mature trees vs. early successional s ...
Knowing Your Warblers
... boot ecologists, many of whom, if not outright ornithologists, knew their birds. Moreover, MacArthur motivated, quantified, and organized the data in a compelling and soon to be characteristic fashion based on the hypothetico deductive method. The warbler paper won the Mercer award “for an outstandi ...
... boot ecologists, many of whom, if not outright ornithologists, knew their birds. Moreover, MacArthur motivated, quantified, and organized the data in a compelling and soon to be characteristic fashion based on the hypothetico deductive method. The warbler paper won the Mercer award “for an outstandi ...
Differential population responses of native and alien rodents to an
... habitat alteration is likely to alter the relative advantage of native versus non-native competitors [16]. However, to the best of our knowledge, there have been no empirical studies demonstrating the outcome of predator eradication in such potentially context-dependent conditions. Because invasive ...
... habitat alteration is likely to alter the relative advantage of native versus non-native competitors [16]. However, to the best of our knowledge, there have been no empirical studies demonstrating the outcome of predator eradication in such potentially context-dependent conditions. Because invasive ...
Historical contingency in species interactions: towards nichebased
... niches into three components: overlap, impact and requirement. Based on classic theories of community assembly, three hypotheses that emphasise related, but distinct influences of the niche components are proposed: priority effects are stronger among species with higher resource use overlap; species ...
... niches into three components: overlap, impact and requirement. Based on classic theories of community assembly, three hypotheses that emphasise related, but distinct influences of the niche components are proposed: priority effects are stronger among species with higher resource use overlap; species ...
book of abstracts
... EU Biodiversity Strategy 2020 indicates that conservation of biodiversity should be viewed in the context of both human use of nature and adaptation to climate change. Renewable energy is seen as an important measure to reduce the effects of climate change; however, further land-use and seascape dev ...
... EU Biodiversity Strategy 2020 indicates that conservation of biodiversity should be viewed in the context of both human use of nature and adaptation to climate change. Renewable energy is seen as an important measure to reduce the effects of climate change; however, further land-use and seascape dev ...
for saving species - Threatened Species Recovery Hub
... This is an exciting time, but we have little time to rest on the laurels of all our previous major wins in policy and management. More than ever before there is a need for truly applied research to deliver innovative solutions that will secure and recover Australia’s threatened fauna and flora. And ...
... This is an exciting time, but we have little time to rest on the laurels of all our previous major wins in policy and management. More than ever before there is a need for truly applied research to deliver innovative solutions that will secure and recover Australia’s threatened fauna and flora. And ...
Evolution: the source of Earth`s biodiversity Genetic variation
... Population characteristics • All populations show characteristics that help scientists predict their future dynamics • Population size = the number of individual organisms present at a given time g - Numbers can increase, decrease, cycle or remain the same Copyright © 2008 Pearson Education, Inc., p ...
... Population characteristics • All populations show characteristics that help scientists predict their future dynamics • Population size = the number of individual organisms present at a given time g - Numbers can increase, decrease, cycle or remain the same Copyright © 2008 Pearson Education, Inc., p ...
Species Selection: Theory and Data
... level, organismic attributes such as body size or metabolic rate can promote broad-sense species selection as readily as species-level attributes such as geographic range or genetic population structure (emergent traits; see below). The key requirements are that (a) a trait exhibits little or no var ...
... level, organismic attributes such as body size or metabolic rate can promote broad-sense species selection as readily as species-level attributes such as geographic range or genetic population structure (emergent traits; see below). The key requirements are that (a) a trait exhibits little or no var ...
Biodiversity and Climate Change: Integrating
... a great deal of interest in phylogenetic signal has come from the probable misconception that it measures evolutionary rates. However, a recent simulation-based study compellingly showed that phylogenetic signal and evolutionary rate are not necessarily related (Revell et al. 2008). Many studies tha ...
... a great deal of interest in phylogenetic signal has come from the probable misconception that it measures evolutionary rates. However, a recent simulation-based study compellingly showed that phylogenetic signal and evolutionary rate are not necessarily related (Revell et al. 2008). Many studies tha ...
Sustaining the Saco
... data collected that describe the organization of the ecosystem. The number of species groups in the model greatly adds to the level of complexity. The inclusion of too many species groups in the model can make the model too cumbersome to explain ecosystem dynamics. To create a food web model, severa ...
... data collected that describe the organization of the ecosystem. The number of species groups in the model greatly adds to the level of complexity. The inclusion of too many species groups in the model can make the model too cumbersome to explain ecosystem dynamics. To create a food web model, severa ...
A River Runs Through It: Riverine Systems Ecology and Restoration
... for Northwestern Vertebrate Biology. Thank you to all who contributed to meeting planning and session coordination. Thank you, too, to all who presented posters and presentations. We wouldn’t have a meeting without you. We would also like to acknowledge and thank Northwest Partners in Amphibian and ...
... for Northwestern Vertebrate Biology. Thank you to all who contributed to meeting planning and session coordination. Thank you, too, to all who presented posters and presentations. We wouldn’t have a meeting without you. We would also like to acknowledge and thank Northwest Partners in Amphibian and ...
the Importance of Habitat Characteristics for Farmland Breeding
... godwits between Alaska and New Zealand (Gill et al., 2006) shows that some animals are amazing dispersers, there will always be limits. Also, the available information decreases with the distance to the possible endpoint of the move, and thus, biases decisions towards nearby endpoints. This makes sp ...
... godwits between Alaska and New Zealand (Gill et al., 2006) shows that some animals are amazing dispersers, there will always be limits. Also, the available information decreases with the distance to the possible endpoint of the move, and thus, biases decisions towards nearby endpoints. This makes sp ...
Factors Influencing Macroinvertebrate Diversity and Community
... and the replacement of taxa over time (Jocqueʹ′ et al. 2007b). In contrast, regional factors regulate species diversity by regulating which taxa and in what quantity may arrive in a community (Jocqueʹ′ et al. 2007b). Freshwater rock pools provide an excellent system for empirically testing questions ...
... and the replacement of taxa over time (Jocqueʹ′ et al. 2007b). In contrast, regional factors regulate species diversity by regulating which taxa and in what quantity may arrive in a community (Jocqueʹ′ et al. 2007b). Freshwater rock pools provide an excellent system for empirically testing questions ...
Metapopulation Ecology - Department of Ecology and Evolutionary
... agent-based models in which behaviour of each individual animal, plant or seed is modelled (Uchmański, 2016). All manner of plausible behaviours can be included in these models, with the disadvantage of large numbers of possibly unknown parameters and computationally intense simulations. Diffusion ...
... agent-based models in which behaviour of each individual animal, plant or seed is modelled (Uchmański, 2016). All manner of plausible behaviours can be included in these models, with the disadvantage of large numbers of possibly unknown parameters and computationally intense simulations. Diffusion ...
Chapter 266 - Global Declines of Amphibians
... Glossary Cryptic diversity Populations that are nearly identical to others in morphology but have significant differences in their DNA sequences, indicating isolation for an extended period of time; these represent unique evolutionary lineages that should be preserved. Emerging disease An infectious ...
... Glossary Cryptic diversity Populations that are nearly identical to others in morphology but have significant differences in their DNA sequences, indicating isolation for an extended period of time; these represent unique evolutionary lineages that should be preserved. Emerging disease An infectious ...
this PDF file - Florida Online Journals
... Sources of variation in apparency and aesthetic appeal in insects include adaptations associated with the environment, particular life history strategies, predator defense, sexual selection, and the interplay of these. Population and species differences in size, shape, and coloration can reflect var ...
... Sources of variation in apparency and aesthetic appeal in insects include adaptations associated with the environment, particular life history strategies, predator defense, sexual selection, and the interplay of these. Population and species differences in size, shape, and coloration can reflect var ...
Spatiotemporal food web dynamics along a desert riparian–upland
... southeastern Arizona which features both spatial and temporal heterogeneity in resource availability. Specifically, we tested whether mammalian carnivores spill over from productive, near-river habitats into adjacent, desert-scrub habitats; and if they do, to document the effects of this spillover o ...
... southeastern Arizona which features both spatial and temporal heterogeneity in resource availability. Specifically, we tested whether mammalian carnivores spill over from productive, near-river habitats into adjacent, desert-scrub habitats; and if they do, to document the effects of this spillover o ...
Niche differentiation, rarity, and commonness in the Australian White
... Moreover, studies have shown commonness in animal and plant ...
... Moreover, studies have shown commonness in animal and plant ...
i.e. Mayfield and Levine 2010
... example, consider a community of two competing plant species, where one best exploits well drained, rocky soil (species A), while the other favours fine clays with greater organic matter content (species B) (for empirical examples, see Pantastico-Caldas & Venable 1993; Gram et al. 2004). Also assume ...
... example, consider a community of two competing plant species, where one best exploits well drained, rocky soil (species A), while the other favours fine clays with greater organic matter content (species B) (for empirical examples, see Pantastico-Caldas & Venable 1993; Gram et al. 2004). Also assume ...