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Ecological Differentiation in a Hybridizing Cryptic Species Complex By Patrick William Turko
... There is observational evidence that separation may be enforced by adaptation to different predation regimes: D. mendotae, with its greater anti-predator morphological plasticity, may out-compete D. dentifera under intense invertebrate predation, while the smaller D. dentifera may be better adapted ...
... There is observational evidence that separation may be enforced by adaptation to different predation regimes: D. mendotae, with its greater anti-predator morphological plasticity, may out-compete D. dentifera under intense invertebrate predation, while the smaller D. dentifera may be better adapted ...
pdf - Scripps Institution of Oceanography
... interactive dynamics of resources, autotrophs and herbivores (De Angelis 1992; Chase et al. 2000a), which assumes a constant resource supply rate, a type I functional response of autotrophs taking up resources, and a type I functional response of herbivores consuming autotrophs. It is well known tha ...
... interactive dynamics of resources, autotrophs and herbivores (De Angelis 1992; Chase et al. 2000a), which assumes a constant resource supply rate, a type I functional response of autotrophs taking up resources, and a type I functional response of herbivores consuming autotrophs. It is well known tha ...
A cross-system synthesis of consumer and nutrient
... interactive dynamics of resources, autotrophs and herbivores (De Angelis 1992; Chase et al. 2000a), which assumes a constant resource supply rate, a type I functional response of autotrophs taking up resources, and a type I functional response of herbivores consuming autotrophs. It is well known tha ...
... interactive dynamics of resources, autotrophs and herbivores (De Angelis 1992; Chase et al. 2000a), which assumes a constant resource supply rate, a type I functional response of autotrophs taking up resources, and a type I functional response of herbivores consuming autotrophs. It is well known tha ...
Prairie Dog Overpopulation - DigitalCommons@University of
... of overpopulation in cases of prairie doglivestock conflicts do not appear to be examples of actual or potential class 4 ecological problems. Here, prairie dogs are assumed to be responsible for decreased revenues, but the assumption is unsupported. Although O'Meilia et al. (1982) indicated that the ...
... of overpopulation in cases of prairie doglivestock conflicts do not appear to be examples of actual or potential class 4 ecological problems. Here, prairie dogs are assumed to be responsible for decreased revenues, but the assumption is unsupported. Although O'Meilia et al. (1982) indicated that the ...
Ecological Entomology - University of Denver
... Abstract. 1. The bottom-up factors that determine parasitoid host use are an important area of research in insect ecology. Host size is likely to be a primary cue for foraging parasitoids due to its potential influence on offspring development time, the risk of multiparasitism, and host immunocompet ...
... Abstract. 1. The bottom-up factors that determine parasitoid host use are an important area of research in insect ecology. Host size is likely to be a primary cue for foraging parasitoids due to its potential influence on offspring development time, the risk of multiparasitism, and host immunocompet ...
spatial variation in molluscan assemblages from coralline turfs of
... Patterns of spatial variation of molluscan communities associated with coralline algal turfs were evaluated over 1,000 km of the coast of Argentinean Patagonia. A hierarchically-nested experimental design was used to determine the relative importance of molluscan assemblage variation at three differ ...
... Patterns of spatial variation of molluscan communities associated with coralline algal turfs were evaluated over 1,000 km of the coast of Argentinean Patagonia. A hierarchically-nested experimental design was used to determine the relative importance of molluscan assemblage variation at three differ ...
A conceptual model for conservation planning
... in space and time make them particularly useful for identifying when and where human uses of the landscape may compromise ecological integrity of the overall landscape (Vedder, 2000). Thus, this approach builds on other species based approaches to landscape conservation such as the focal species app ...
... in space and time make them particularly useful for identifying when and where human uses of the landscape may compromise ecological integrity of the overall landscape (Vedder, 2000). Thus, this approach builds on other species based approaches to landscape conservation such as the focal species app ...
UNIT 2 Practice TEST
... c. Amphibians are experiencing sharp population declines in a variety of habitats. d. Amphibians eat many insects, second in number only to birds. e. They are often considered keystone species. Birds and trout make good a. nonnative species. b. native species. c. keystone species. d. indicator speci ...
... c. Amphibians are experiencing sharp population declines in a variety of habitats. d. Amphibians eat many insects, second in number only to birds. e. They are often considered keystone species. Birds and trout make good a. nonnative species. b. native species. c. keystone species. d. indicator speci ...
Ameiurus natalis (Lesueur, 1819) - CIRCABC
... Giving the characteristics of this species (abundant in its native range; capable of securing and ingesting a wide range of food; fast growing; broad native range; high genetic variability; high reproductive potential; highly adaptable to different environments; highly mobile locally; a habitat gene ...
... Giving the characteristics of this species (abundant in its native range; capable of securing and ingesting a wide range of food; fast growing; broad native range; high genetic variability; high reproductive potential; highly adaptable to different environments; highly mobile locally; a habitat gene ...
Ecology and Ecosystems
... If presentations are chosen, an assessor observation checklist along with copies of the presentations should be retained as evidence of performance for each learner. Where a learner does not meet the required standard they will be given the chance to either reattempt the same topics, or to undertake ...
... If presentations are chosen, an assessor observation checklist along with copies of the presentations should be retained as evidence of performance for each learner. Where a learner does not meet the required standard they will be given the chance to either reattempt the same topics, or to undertake ...
character release following extinction in a caribbean reef
... shift is related to coral growth form and growth rate, and thus reflects the acquisition of a primary resource in corals— light. Character release occurred at the same oceanic Caribbean island (Barbados) where environments have fluctuated with similar variance throughout the period of coexistence. N ...
... shift is related to coral growth form and growth rate, and thus reflects the acquisition of a primary resource in corals— light. Character release occurred at the same oceanic Caribbean island (Barbados) where environments have fluctuated with similar variance throughout the period of coexistence. N ...
Supplementary Online Material
... Predicted future changes to species interactions resulting from the effects of each global environmental change (GEC) driver. Arrows with solid outlines indicate nutrient and energy flow, while double-headed arrows with dotted outlines indicate resource competition. + and – symbols within arrows ind ...
... Predicted future changes to species interactions resulting from the effects of each global environmental change (GEC) driver. Arrows with solid outlines indicate nutrient and energy flow, while double-headed arrows with dotted outlines indicate resource competition. + and – symbols within arrows ind ...
The role of biotic factors in the transmission of free
... with the potential to alter larval transmission processes. We found that experimental studies generally indicate strong effects of biotic factors, and the latter emerge as potentially important, underestimated determinants in the transmission ecology of free-living endohelminth stages. This implies t ...
... with the potential to alter larval transmission processes. We found that experimental studies generally indicate strong effects of biotic factors, and the latter emerge as potentially important, underestimated determinants in the transmission ecology of free-living endohelminth stages. This implies t ...
biolief 2011 - conference program and abstract book[1]
... Luísa Maciel – Escola Superior de Agricultura “Luiz de Queiroz” USP, Piracicaba, Brazil. Relationship between Hedychium coronarium (Koenig.) biomass and light intensity on an Atlantic forest fragment, Brazil ...
... Luísa Maciel – Escola Superior de Agricultura “Luiz de Queiroz” USP, Piracicaba, Brazil. Relationship between Hedychium coronarium (Koenig.) biomass and light intensity on an Atlantic forest fragment, Brazil ...
Biblio RTF Export - Global Invasive Alien Species Information
... J. K. Webb, D. Pearson, and R. Shine, ?A small dasyurid predator (Sminthopsis virginiae) rapidly learns to avoid a toxic invader?, Wildlife ResearchWildlife Research, vol. 38, pp. 726-731, 2011. J. K. Webb, G. P. Brown, T. Child, M. J. Greenlees, B. L. Phillips, and R. Shine, ?A native dasyurid pred ...
... J. K. Webb, D. Pearson, and R. Shine, ?A small dasyurid predator (Sminthopsis virginiae) rapidly learns to avoid a toxic invader?, Wildlife ResearchWildlife Research, vol. 38, pp. 726-731, 2011. J. K. Webb, G. P. Brown, T. Child, M. J. Greenlees, B. L. Phillips, and R. Shine, ?A native dasyurid pred ...
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... The management actions designed for the Conservation Unit tcke fo ur different concepts into account. These include the objectives of the management plan and the description of their underlying ecological principles. The design of a hierarchal management framework follows, against which the impleme ...
... The management actions designed for the Conservation Unit tcke fo ur different concepts into account. These include the objectives of the management plan and the description of their underlying ecological principles. The design of a hierarchal management framework follows, against which the impleme ...
THE SHIFTING IMPORTANCE OF COMPETITION AND FACILITATION ALONG
... Ecological theory and empirical studies have focused heavily on the importance of competition in plant communities. Competition can help explain species coexistence, the maintenance of species diversity, and biological invasions. Competition for resources appears to be ubiquitous among coexisting or ...
... Ecological theory and empirical studies have focused heavily on the importance of competition in plant communities. Competition can help explain species coexistence, the maintenance of species diversity, and biological invasions. Competition for resources appears to be ubiquitous among coexisting or ...
EU NON-NATIVE SPECIES RISK ANALYSIS – RISK ASSESSMENT
... Populations in Europe are in places considered to represent a threat to local turtle species (through competition). Trachemys scripta elegans is included in the IUCN/SSC Invasive Species Specialist Group's 100 Worst Invasives List. (Van Dijk, et al, 2013) Natural reproduction of the red-eared slider ...
... Populations in Europe are in places considered to represent a threat to local turtle species (through competition). Trachemys scripta elegans is included in the IUCN/SSC Invasive Species Specialist Group's 100 Worst Invasives List. (Van Dijk, et al, 2013) Natural reproduction of the red-eared slider ...
Oral Presentation Abstracts - Queen`s University Belfast
... France Some species of small mammals (rabbits, prairie dogs, pikas, voles, etc.) have been traditionally perceived as pests and targeted for control on a very large scale despite their importance as key-stone species in their native ecosystems. During the 90s, a number of studies have shown that sma ...
... France Some species of small mammals (rabbits, prairie dogs, pikas, voles, etc.) have been traditionally perceived as pests and targeted for control on a very large scale despite their importance as key-stone species in their native ecosystems. During the 90s, a number of studies have shown that sma ...
4.3 Succession
... We think of these events as disasters, but many species are adapted to them. Although forest fires kill some trees, for example, other trees are spared, and fire can stimulate their seeds to germinate. Secondary succession can also follow human activities like logging and farming. ...
... We think of these events as disasters, but many species are adapted to them. Although forest fires kill some trees, for example, other trees are spared, and fire can stimulate their seeds to germinate. Secondary succession can also follow human activities like logging and farming. ...
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 ...
Species interactions - Lakeland Regional High School
... • Secondary succession = a disturbance dramatically alters, but does not destroy, all local organisms - The remaining organisms form “building blocks” for the next population species ...
... • Secondary succession = a disturbance dramatically alters, but does not destroy, all local organisms - The remaining organisms form “building blocks” for the next population species ...
High intraspecific variability in the functional niche of a predator is
... traits in animal taxa driven, for instance, by resource polymorphism, trophic specialization, ontogeny, or sexual dimorphism (Smith and Skulason 1996; Hjelm et al. 2000, 2001; Svanb€ack and Ekl€ ov 2002; Bolnick et al. 2003). However, despite the existence of such variations, functional ecologists h ...
... traits in animal taxa driven, for instance, by resource polymorphism, trophic specialization, ontogeny, or sexual dimorphism (Smith and Skulason 1996; Hjelm et al. 2000, 2001; Svanb€ack and Ekl€ ov 2002; Bolnick et al. 2003). However, despite the existence of such variations, functional ecologists h ...
Biological Journal of the Linnean Society 84
... are unlikely to withstand close scrutiny. For example, nestling Cu. canorus begging vocalizations closely resemble (‘mimic’) those of a A. scirpaceus brood (Davies et al., 1998). This similarity seems like perfect mimicry (see sonograms in Davies et al., 1998 and Fraga, 1998). However, evidence for ...
... are unlikely to withstand close scrutiny. For example, nestling Cu. canorus begging vocalizations closely resemble (‘mimic’) those of a A. scirpaceus brood (Davies et al., 1998). This similarity seems like perfect mimicry (see sonograms in Davies et al., 1998 and Fraga, 1998). However, evidence for ...
Feral cats: killing 75 million native animals every night
... Our response to this tripartite attack on Australia’s natural capital is straightforward – we deliver practical land management informed by world-class science. Central to our strategy is the fact that around 80% of our staff are based in the field. AWC’s dedicated team of field operatives – land ma ...
... Our response to this tripartite attack on Australia’s natural capital is straightforward – we deliver practical land management informed by world-class science. Central to our strategy is the fact that around 80% of our staff are based in the field. AWC’s dedicated team of field operatives – land ma ...
Ecological fitting
![](https://en.wikipedia.org/wiki/Special:FilePath/Colorado_potato_beetle.jpg?width=300)
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.