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Thursday, July 16, 2020 | History

2 edition of Optimal foraging in the predaceous rocky intertidal snail "Acanthina spirata" (Blainville, 1932) found in the catalog.

Optimal foraging in the predaceous rocky intertidal snail "Acanthina spirata" (Blainville, 1932)

Diane Marie Perry

Optimal foraging in the predaceous rocky intertidal snail "Acanthina spirata" (Blainville, 1932)

by Diane Marie Perry

  • 116 Want to read
  • 25 Currently reading

Published .
Written in English

    Subjects:
  • Gastropoda.,
  • Muricidae.,
  • Predation (Biology).

  • Edition Notes

    Statementby Diane Marie Perry.
    The Physical Object
    Paginationxii, 152 leaves :
    Number of Pages152
    ID Numbers
    Open LibraryOL15149023M

    The Ecology of Foraging Behavior: Implications for Animal Learning and Memory Alan C. Kamil and Herbert L. Roitblat Annual Review of Psychology Ecological and Evolutionary Responses to Recent Climate Change Camille Parmesan Annual Review of Ecology, Evolution, and Systematics Foraging Strategies of Ants J F A Traniello.   The new idea of optimal foraging theory was that feeding strategies evolved by natural selection, and it was a natural next step to use the techniques of optimization models. Although the terminology differs somewhat among authors, the elements of a foraging model have remained the same since the publication of Stephens and Krebs's book.

    optimal foraging theory (Belovsky, , , ; Ritchie, ), aquatic organisms, particularly freshwater gastropods, have attracted little attention. The giant rams-hom snail, Marl sa comuarietis (Ampullariidae), is a discodial prosobranch gastropod that was.   Changes in the shell architecture of marine snails enhance defenses and greatly improve survival against predators. In the northwest Atlantic Ocean, shorter and thicker shells have been reported for several species following the introduction of predatory Carcinus maenas crabs early in the 20th century. But we report that the shell lengths of Nucella lapillus actually increased by an average of.

    optimal foraging theory A theory, first formulated in by R. H. MacArthur and E. R. Pianka, stating that natural selection favours animals whose behavioural strategies maximize their net energy intake per unit time spent foraging. Such time includes both searching for prey and handling (i.e. killing and eating) it. The theory was originally devised in an attempt to explain why, out of the. Methods. Turbo undulatus (Solander, ; maximal shell-width ∼40 mm), is relatively common in mid to low tidal areas on intertidal rocky shores in New South Wales, torquatus (Gmelin, ; maximal shell-width ∼ mm) is a large snail commonly found on shallow subtidal rocky reefs of south-east and south-west Australia, except for Victoria and Tasmania, at latitudes above.


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Optimal foraging in the predaceous rocky intertidal snail "Acanthina spirata" (Blainville, 1932) by Diane Marie Perry Download PDF EPUB FB2

Optimal foraging in the predaceous rocky intertidal snail 'Acanthina spirata>' (Blainville, ) - Page 90 By OAI identifier: oai::pcoll30/ The diet and foraging period of the neogastropod Acanthina punctulata were investigated in order to test various aspects of recent optimal foraging strategy models.

This intertidal snail is an actively searching predator which preys on snails and barnacles by boring a hole in the shell and rasping out the flesh. Unlike many gastropod predators, Acanthina drill its gastropod prey at a very specific location on the Cited by: investigated in order to test various aspects of recent optimal foraging strategy models.

This intertidal snail is an actively searching predator which preys on snails and barnacle. by boring a hole in the shell and rasping out the flesh. Unlike many gastropod predators, Acan-thina drill its gastropod prey at a very specific location on the columella, the thickest portion of the shell.

Acanthina'a foraging period. Abstract. Dietary selectivity, a prerequisite of Optimal Foraging, has been demonstrated in diverse animals feeding intertidally. Moreover under laboratory conditions, crabs, dogwhelks, asteroids and fish select prey which tend to maximize the rate of food intake, and this also has been shown to occur on the shore in dogwhelks and in a wading by:   Perry, D.

M.: Optimal foraging in the predaceous rocky intertidal snail Acanthina spirata (Blainville, ), pp. Dissertation, University of Southern California, Los Cited by: The tenets of optimal foraging theory are used to contrast the behavior of the predatory snail Acantina spirata when feeding on the barnacles Balanus glandula and Chthamalus fissus under conditions of satiation and starvation.

As predicted in optimal diet models, A. spirata is less selective (ratio of attack frequency on a prey species to number of individuals available) when the higher ranking prey. The diet and foraging period of the neogastropod Acanthina punctulata were investigated in order to test various aspects of recent optimal foraging strategy models.

This intertidal snail is an. the intertidal snail Acanthina spirata (Neogastropoda: predaceous rocky intertidal snail, Acanthina punctulata. investigated in order to test various aspects of recent optimal foraging.

Foraging decisions of Nucella lapillus (L.), a predatory gastropod on rocky shores, were predicted using a dynamic-programming model that included energy reserves and gut contents as state.

Function of the shell spine in the predaceous rocky intertidal snail Acanthina spirata (Prosobranchia: Muricacea) the context of an optimal foraging theory. Rockey intertidal field and. The tenets of optimal foraging theory are used to contrast the behavior of the predatory snail Acantina spirata when feeding on the barnacles Balanus glandula and Chthamalus fissus under conditions of satiation and starvation.

Jane Lubchenco Menge, Prey selection and foraging period of the predaceous rocky intertidal snail, Acanthina punctulata, Oecologia, /BF, 17, 4, (), (). Crossref Peter W.

Frank, Growth rates and longevity of some gastropod mollusks on the coral reef at Heron Island, Oecologia, /BF, 2, 2, (), ().

OPTIMAL FORAGING THEORY. Introduction: The absolute limits of the range of food types eaten by a consumer in a given habitat are defined by morphological constraints, but very few animals actually eat all of the different food types they are capable of consuming.

Optimal foraging theory helps biologists understand the factors determining a consumerís operational range of food types, or diet. Group foraging impact of their predation may cause major changes on predator species, its impact on cultivated bivalves an Foraging Behaviors of a Predatory Snail (Hexaplex trunculus) in Group-Attacking üler1,*, Aynur Lök2 1 Aydın Adnan Menderes University, Faculty of Agriculture, Department of Aquaculture and Fisheries, Aydın, Turkey.

Optimal Foraging. OFT allows researchers to develop a large set of fundamental hypotheses that predict which food resources foragers will pursue when encountered during a search (diet breadth), or where foragers will travel to search for resources (patch choice models) and how long they will stay in these places before moving to other areas (marginal value theorem).

1. Introduction. On intertidal rocky shores, patterns of distribution of species are determined by complex interactions between biological and physical forces (Connell, ).Among these forces, predation is one of the most important factors in determining structure and dynamics of communities (Menge,Wieters and Navarrete, ).The most evident effect of predation.

Snail Life Histories. Since my project focused primarily on snails, I have provided some information on the four species I observed in the rocky intertidal. This is a general summary of their life history and importance within the intertidal community. Generalized Prosobranch (anteriorly-gilled snails).

The North Atlantic gastropod Littorina littorea exhibits a characteristic “intertidal” distribution: the snail is abundant in the littoral zone but scarce in the shallow subtidal and the relatively few subtidal individuals are larger (in shell size) on average than those in the intertidal zone.

For highly mobile species like L. littorea, this vertical distribution is primarily determined. Summary. The tenets of optimal foraging theory are used to contrast the behavior of the predatory snail Acantina spirata when feeding on the barnacles Balanus glandula and Chthamalusfissus under conditions of satiation and starva-tion.

As predicted in optimal diet models, A. spirata is less selective (ratio of attack frequency on a prey species to. This book had its genesis in a rather disorganized and poorly conceived lecture on optimal foraging theory that one of us (GHO) gave to an advanced ecology class during the winter of The deficiencies in that treatment, combined with the obvious potential of an improved conceptual.

I took a trip out the California coast during low tide to forage and harvest Black Turban Snails (Black Tegulas), Purple Sea Urchin, Mussels, and a .Optimal foraging theory is widely applicable to feeding systems throughout the animal kingdom. Under the OFT, any organism of interest can be viewed as a predator that forages prey.

There are different classes of predators that organisms fall into and each class has distinct foraging .supporting the theory of optimal foraging. A specific example of optimal foraging has been shown in Northwestern Crows (Richardson & Verbeek, ).

The crows were observed foraging for clams in the intertidal zone. The crows would dig up many different sizes of clams, and would often leave the smaller clams in favor of larger.