Variable Developmental Period: Intraspecific Competition Models with Conditional Age‐Specific Maturity and Mortality Schedules

Frogner, Karl J.

doi:10.2307/1936829

Cited by 21 publications

(18 citation statements)

References 18 publications

(16 reference statements)

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“…Theoretical studies show that resource-dependent prolon- gation of larval development time can produce stable equilibria in populations that would otherwise grow without bound (Frogner 1980). Theoretical studies show that resource-dependent prolon- gation of larval development time can produce stable equilibria in populations that would otherwise grow without bound (Frogner 1980).…”

Section: Discussionmentioning

confidence: 98%

Resource Limitation of Larval Treehole Mosquitoes Subsisting on Beech Detritus

Carpenter

1983

Ecology

118

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Mechanisms of larval population regulation in the detritivorous treehole mosquito Aedes triseriatus were explored experimentally, using laboratory microcosms of the treehole ecosystem. Quantity of beech leaf litter strongly limited growth, survivorship, and development rates of larvae. Little support was found for the hypothesis that an excreted substance causes density-dependent responses oflarval A. triseriatus populations. Such an effect, if it exists, is much weaker than resource limitation.

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Section: Discussionmentioning

confidence: 98%

Resource Limitation of Larval Treehole Mosquitoes Subsisting on Beech Detritus

Carpenter

1983

Ecology

118

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“…Species interactions involving mosquito larvae are central to application of biological control of mosquitoes (13, 53, 104, 107, 134) and to some aspects of epidemiology of mosquito-borne pathogens (5, 6). Mosquito larvae are also model systems for testing theory in behavioral (26, 125), population (54), and community ecology (32, 37, 66, 74, 85, 94, 137). Thus, a synthesis of the literature on interactions among mosquitoes will be valuable to medical entomologists interested in the impact of interactions on adult production and to basic ecologists using mosquitoes as model organisms for testing ecological theory.…”

Section: Introductionmentioning

confidence: 99%

Species Interactions Among Larval Mosquitoes: Context Dependence Across Habitat Gradients

Juliano

2009

Annu. Rev. Entomol.

269

311

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Biotic interactions involving mosquito larvae are context dependent, with effects of interactions on populations altered by ecological conditions. Relative impacts of competition and predation change across a gradient of habitat size and permanence. Asymmetrical competition is common and ecological context changes competitive advantage, potentially facilitating landscape-level coexistence of competitors. Predator effects on mosquito populations sometimes depend on habitat structure and on emergent effects of multiple predators, particularly interference among predators. Nonlethal effects of predators on mosquito oviposition, foraging, and life history are common, and their consequences for populations and for mosquito-borne disease are poorly understood. Contextdependent beneficial effects of detritus shredders on mosquitoes occur in container habitats, but these interactions appear to involve more than simple resource modification by shredders. Investigations of context-dependent interactions among mosquito larvae will yield greater understanding of mosquito population dynamics and provide useful model systems for testing theories of context dependence in communities.

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“…Population models should describe the dynamics of open populations (e.g. Caswell 1978, Frogner 1980). Roughgarden, Gaines & Pacala (in Lewin 1986) argued that 'at some scale most ecological systems are open systems'; therefore the distinction between open and closed systems is somewhat irrelevant nowadays.…”

Section: Introductionmentioning

confidence: 99%

Settlement of benthic marine invertebrates

Rodriguez¹,

Ojeda²,

Inestrosa³

1993

Mar. Ecol. Prog. Ser.

486

279

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Settlement and recruitment of benthic marine invertebrates are complex processes, determined by the interaction of biotic and abiotic factors which operate at different temporal and spatial scales. This review analyses the settlement process, attempting to integrate aspects related to different levels of organization (i.e. ecological-physiological-molecular). This is important because many factors that act at any of these levels and at different times can explain by themselves the patterns of settlement andlor recruitment of a large number of species. From an ecological perspective, progress has been made in the identification of causal factors of vanations in larval availability for settlement. Many physical and ethological factors that act during settlement have, however, not received much attention. Likewise, since the great majority of settlement studies have been carried out at restricted spatial scales, fewer works consider different biological and physical factors acting at different scales simultaneously. Settlement patterns are frequently inferred from recruitment. In this sense, a density-independent action of post-settlement mortality has been cons~dered as prerequisite for thls type of inference. This has, however, recently been challenged on the basis that settler-recruit and mortality-settler density relationships change in time. At the physiological-molecular level, different settlement-inducing chemical cues have been identified. Those cues have, however, not yet been characterized to understand better the signal transduction mechanisms involved in larval responses. It is likely that the nervous system is involved. The use of artificial inducers would be useful in studying settlement induction, until more effective natural inducers are isolated and characterized Although few studies have analysed the acquisition of competence, stages of larval development have been related to changes in protein patterns or enzymatic levels of the nervous system. An inopportune exposure of larvae to inducers may delay settlement and may even have a negative impact on growth and subsequent survival of juveniles.

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Variable Developmental Period: Intraspecific Competition Models with Conditional Age‐Specific Maturity and Mortality Schedules

Cited by 21 publications

References 18 publications

Resource Limitation of Larval Treehole Mosquitoes Subsisting on Beech Detritus

Resource Limitation of Larval Treehole Mosquitoes Subsisting on Beech Detritus

Species Interactions Among Larval Mosquitoes: Context Dependence Across Habitat Gradients

Settlement of benthic marine invertebrates

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