Report on identification of keystone species
... The role that a keystone species plays in its ecosystem is analogous to the role of a keystone in an arch the arch collapses without it. Similarly, an ecosystem may experience a dramatic shift if a keystone species is removed, even though that species was a small part of the ecosystem by measures of ...
... The role that a keystone species plays in its ecosystem is analogous to the role of a keystone in an arch the arch collapses without it. Similarly, an ecosystem may experience a dramatic shift if a keystone species is removed, even though that species was a small part of the ecosystem by measures of ...
Indo-Pacific lionfish are larger and more abundant on invaded reefs
... introduced ranges are rarer, but those we have found show a similar pattern (e.g. Indian mongoose: Simberloff et al. 2000; coypu: Guichón et al. 2003). There are several non-mutually exclusive explanations. Lack of exploitation or low predation mortality in the introduced range could favour the evo ...
... introduced ranges are rarer, but those we have found show a similar pattern (e.g. Indian mongoose: Simberloff et al. 2000; coypu: Guichón et al. 2003). There are several non-mutually exclusive explanations. Lack of exploitation or low predation mortality in the introduced range could favour the evo ...
Box-Ironbark Experimental Mosaic Burning Project
... seasonal effect: more weed species were recorded in springburned landscapes than in unburned landscapes, but this was not true for autumn burnt landscapes. Of seven individual plant species modelled, two (Gold-dust Wattle Acacia acinacea and Daphne Heath Brachyloma daphnoides) showed no change in oc ...
... seasonal effect: more weed species were recorded in springburned landscapes than in unburned landscapes, but this was not true for autumn burnt landscapes. Of seven individual plant species modelled, two (Gold-dust Wattle Acacia acinacea and Daphne Heath Brachyloma daphnoides) showed no change in oc ...
Biodiversity Plan Tiritiri Matangi
... The first working plan for Tiritiri Matangi was produced in 1982.2 At that time, the word ‘restoration’ was not part o conservation ter inolog and the process was seen as a ‘rea orestation’ project, ai ed at giving the public the opportunit to interact with rare native plants and animals which they ...
... The first working plan for Tiritiri Matangi was produced in 1982.2 At that time, the word ‘restoration’ was not part o conservation ter inolog and the process was seen as a ‘rea orestation’ project, ai ed at giving the public the opportunit to interact with rare native plants and animals which they ...
Black-footed ferrets and Siberian polecats as ecological surrogates
... especially by the need to test toxicities of chemicals on surrogates for endangered species (Banks et al. 2010; Fairchild et al. 2008; Munns 2006; Spromberg and Birge 2005). Whether an ecologically equivalent species can actually be a true surrogate is seldom tested. Managers faced with an endangere ...
... especially by the need to test toxicities of chemicals on surrogates for endangered species (Banks et al. 2010; Fairchild et al. 2008; Munns 2006; Spromberg and Birge 2005). Whether an ecologically equivalent species can actually be a true surrogate is seldom tested. Managers faced with an endangere ...
The significance of ratios of detritus types and micro
... Canada; †Department of Biological Sciences, Behaviour, Ecology, Evolution & Systematics Section, Illinois State University, Normal, Illinois 61790–4120, USA; and ‡Department of Entomology, Michigan State University, East Lansing, MI 48824–1115, USA ...
... Canada; †Department of Biological Sciences, Behaviour, Ecology, Evolution & Systematics Section, Illinois State University, Normal, Illinois 61790–4120, USA; and ‡Department of Entomology, Michigan State University, East Lansing, MI 48824–1115, USA ...
Coral Zonation Article - People Server at UNCW
... species associations in different places. Finer subdivision of a habitat may result from the inability of some species to live in close proximity to others. One result of this interaction between organisms and environment is zonation of corals and associated communities. A zonation pattern may be un ...
... species associations in different places. Finer subdivision of a habitat may result from the inability of some species to live in close proximity to others. One result of this interaction between organisms and environment is zonation of corals and associated communities. A zonation pattern may be un ...
BfN-Skripten 375 - Bundesamt für Naturschutz
... The publisher takes no guarantee for correctness, details and completeness of statements and views in this report as well as no guarantee for respecting private rights of third parties. Views expressed in this publication are those of the authors and do not necessarily represent those of the publish ...
... The publisher takes no guarantee for correctness, details and completeness of statements and views in this report as well as no guarantee for respecting private rights of third parties. Views expressed in this publication are those of the authors and do not necessarily represent those of the publish ...
Cuckoos, cowbirds and hosts: adaptations, trade
... rejected. These species build domed nests and the dark environment might preclude egg colouration from being a reliable clue. The response of the host puts this cuckoo species under selection pressure to evolve a smaller egg, which was identified as a major adaptation to brood parasitism in general ...
... rejected. These species build domed nests and the dark environment might preclude egg colouration from being a reliable clue. The response of the host puts this cuckoo species under selection pressure to evolve a smaller egg, which was identified as a major adaptation to brood parasitism in general ...
Galápagos macroalgae: A review of the state of ecological knowledge
... lengths of over 30 meters (Lobban & Harrison, 1997). The species richness of kelp-associated benthic communities (specifically forests of Macrocystis) rivals that of the most biodiverse habitats on the planet (Dayton, 1985). Degradation or loss of macroalgal habitat results in fundamental changes in ...
... lengths of over 30 meters (Lobban & Harrison, 1997). The species richness of kelp-associated benthic communities (specifically forests of Macrocystis) rivals that of the most biodiverse habitats on the planet (Dayton, 1985). Degradation or loss of macroalgal habitat results in fundamental changes in ...
Pesticide effects on freshwater zooplankton: an ecological perspective
... cause the most serious problems because they are designed speci®cally to kill organisms (both the noxious target organisms and other non-target ones) and they are released into the natural environment intentionally. It has been widely documented that pesticide concentrations in the natural environme ...
... cause the most serious problems because they are designed speci®cally to kill organisms (both the noxious target organisms and other non-target ones) and they are released into the natural environment intentionally. It has been widely documented that pesticide concentrations in the natural environme ...
Studying the evolution of physiological performance
... The study of physiology has largely developed in almost complete independence from the study of evolution. The practitioners, goals and philosophical bases of the fields have been different (Mayr 1982) such that little communication exists between them (see Futuyma 1986; Feder 1987). Nevertheless, t ...
... The study of physiology has largely developed in almost complete independence from the study of evolution. The practitioners, goals and philosophical bases of the fields have been different (Mayr 1982) such that little communication exists between them (see Futuyma 1986; Feder 1987). Nevertheless, t ...
Abstract book of the 12th European Ecological Federation
... take place in Avila (Spain) from 25th to 29th September 2011. The Spanish Association for Terrestrial Ecology (AEET) and the Portuguese Ecological Society (SPECO) have made a great effort to bring together talented scientists, novel ideas and promising students to tackle ecological issues under the ...
... take place in Avila (Spain) from 25th to 29th September 2011. The Spanish Association for Terrestrial Ecology (AEET) and the Portuguese Ecological Society (SPECO) have made a great effort to bring together talented scientists, novel ideas and promising students to tackle ecological issues under the ...
Wulff 2012 - FSU Biology
... of the mutualistic partner, and thus competition, predation, or inhibition by some abiotic factor has to be demonstrated to differ with and without the mutualistic partner. Benefit must be measured in terms of increased growth, reproduction, or survival, and this requires following the same individu ...
... of the mutualistic partner, and thus competition, predation, or inhibition by some abiotic factor has to be demonstrated to differ with and without the mutualistic partner. Benefit must be measured in terms of increased growth, reproduction, or survival, and this requires following the same individu ...
LOCAL DISTURBANCE CYCLES AND THE MAINTENANCE OF
... the effects of habitat fragmentation on the structure of competitive communities (Roy et al. 2004). It has further been shown to generate landscape-level patchiness and disturbance cycles in model systems that are suggested to explain strong temporal fluctuations in some natural mussel populations (G ...
... the effects of habitat fragmentation on the structure of competitive communities (Roy et al. 2004). It has further been shown to generate landscape-level patchiness and disturbance cycles in model systems that are suggested to explain strong temporal fluctuations in some natural mussel populations (G ...
2015 Program - Western Society of Naturalists
... Have you ever wondered where you fit into the policy process? Understanding the link between science and policy is not taught as part of our formal education process, despite the growing marine environmental challenges that policy makers and scientists both face. Come join us for a workshop that pro ...
... Have you ever wondered where you fit into the policy process? Understanding the link between science and policy is not taught as part of our formal education process, despite the growing marine environmental challenges that policy makers and scientists both face. Come join us for a workshop that pro ...
Risk Assessment
... conducted a biological risk assessment to determine the risk of northern snakehead in Canada. This assessment included evaluating the risk of survival, reproduction and spread of these species, as well as their pathogens, parasites or fellow travelers (e.g. other invasive species) should northern sn ...
... conducted a biological risk assessment to determine the risk of northern snakehead in Canada. This assessment included evaluating the risk of survival, reproduction and spread of these species, as well as their pathogens, parasites or fellow travelers (e.g. other invasive species) should northern sn ...
SUMMARY
... of vegetation assemblages and successful early colonization is not obstructed by human-induced pressures. Also, and this renders mangrove forests vulnerable in spite of their intrinsic resilience, when the ‘capital’ of forest is severely reduced or impoverished as happens extensively worldwide, the ...
... of vegetation assemblages and successful early colonization is not obstructed by human-induced pressures. Also, and this renders mangrove forests vulnerable in spite of their intrinsic resilience, when the ‘capital’ of forest is severely reduced or impoverished as happens extensively worldwide, the ...
A review of the state of ecological knowledge
... lengths of over 30 meters (Lobban & Harrison, 1997). The species richness of kelp-associated benthic communities (specifically forests of Macrocystis) rivals that of the most biodiverse habitats on the planet (Dayton, 1985). Degradation or loss of macroalgal habitat results in fundamental changes in ...
... lengths of over 30 meters (Lobban & Harrison, 1997). The species richness of kelp-associated benthic communities (specifically forests of Macrocystis) rivals that of the most biodiverse habitats on the planet (Dayton, 1985). Degradation or loss of macroalgal habitat results in fundamental changes in ...
The peppered moth: a black and white story after all
... selection by a major evolutionary biologist. This was not intended at all. Coyne's statement, quoted above, was unfortunately worded. He meant, I think, that understanding of the causes ("action") of natural selection were still obscure, rather than that the rapid rise and then fall of melanism in t ...
... selection by a major evolutionary biologist. This was not intended at all. Coyne's statement, quoted above, was unfortunately worded. He meant, I think, that understanding of the causes ("action") of natural selection were still obscure, rather than that the rapid rise and then fall of melanism in t ...
COMPETITOR-INDUCED PLASTICITY IN TADPOLES
... K. Skelly, and K. L. Yurewicz, unpublished data). Interspecific competition was manipulated using increasing densities of chorus frog larvae (Pseudacris triseriata; 20 wood frogs 1 0 chorus frogs, 20 wood frogs 1 20 chorus frogs, and 20 wood frogs 1 40 chorus ...
... K. Skelly, and K. L. Yurewicz, unpublished data). Interspecific competition was manipulated using increasing densities of chorus frog larvae (Pseudacris triseriata; 20 wood frogs 1 0 chorus frogs, 20 wood frogs 1 20 chorus frogs, and 20 wood frogs 1 40 chorus ...
Community structure and organization of tidepools
... The physical environment of tidepools is highly regulated by the hdal cycle, although fluctuations in physical factors are smaller in tidepools, and the organisms remain submerged for the entire tidal cycle. As a result, the upper limits of the distribution of organisms are extended in tidepools and ...
... The physical environment of tidepools is highly regulated by the hdal cycle, although fluctuations in physical factors are smaller in tidepools, and the organisms remain submerged for the entire tidal cycle. As a result, the upper limits of the distribution of organisms are extended in tidepools and ...
Models of a four-species annual weed community : growth
... models built from theory that explain how systems ought to work. My approach is explanatory; therefore, I look for ecological theory that provides a framework to predict community dynamics in agricultural systems. Weed associations are a special type of plant community. Once key life-history process ...
... models built from theory that explain how systems ought to work. My approach is explanatory; therefore, I look for ecological theory that provides a framework to predict community dynamics in agricultural systems. Weed associations are a special type of plant community. Once key life-history process ...
Non-Additive Effects of Genotypic Diversity Increase Floral
... altissima indirectly affect flower visitor abundance and richness through their direct effects on floral abundance. These results are some of the first to demonstrate that floral community phenotypes may vary in response to plant genotypic diversity. This represents an important advance as recent st ...
... altissima indirectly affect flower visitor abundance and richness through their direct effects on floral abundance. These results are some of the first to demonstrate that floral community phenotypes may vary in response to plant genotypic diversity. This represents an important advance as recent st ...
Ecological fitting
Ecological fitting is ""the process whereby organisms colonize and persist in novel environments, use novel resources or form novel associations with other species as a result of the suites of traits that they carry at the time they encounter the novel condition.” It can be understood as a situation in which a species' interactions with its biotic and abiotic environment seem to indicate a history of coevolution, when in actuality the relevant traits evolved in response to a different set of biotic and abiotic conditions. The simplest form of ecological fitting is resource tracking, in which an organism continues to exploit the same resources, but in a new host or environment. In this framework, the organism occupies a multidimensional operative environment defined by the conditions in which it can persist, similar to the idea of the Hutchinsonian niche. In this case, a species can colonize new environments (e.g. an area with the same temperature and water regime) and/or form new species interactions (e.g. a parasite infecting a new host) which can lead to the misinterpretation of the relationship as coevolution, although the organism has not evolved and is continuing to exploit the same resources it always has. The more strict definition of ecological fitting requires that a species encounter an environment or host outside of its original operative environment and obtain realized fitness based on traits developed in previous environments that are now co-opted for a new purpose. This strict form of ecological fitting can also be expressed either as colonization of new habitat or the formation of new species interactions.