Search results for: Andreas Walzer

Items from 1 to 11 out of 11 results

article

Heat waves affect prey and predators differently via developmental plasticity: who may benefit most from global warming?

Thomas Tscholl, Gösta Nachman, Bernhard Spangl, Andreas Walzer

Pest Management Science > 78 > 3 > 1099 - 1108

BACKGROUND Climate warming is considered to affect the characteristics of heat waves by increasing their duration, frequency and intensity, which can have dramatic consequences for ectothermic arthropods. However, arthropods may respond to heat waves via plastic modifications, which could differently affect a predator and its prey. We examined this assumption using prominent counterparts in biological...

chapter

Development of an economic rearing and transport system for an arid-adapted strain of the predatory mite, Neoseiulus californicus, for spider mite control

Eric Palevsky, Phyllis G. Weintraub, Einat Zchori-Fein, Shira Gal, more

Trends in Acarology > Agricultural Acarology: Biological Control > 425-429

Neoseiulus californicus (McGregor) is a relatively effective phytoseiid predator against spider mites reported from the Americas (North and South), Africa, the Mediterranean basin, and Japan. This study was a collaborative effort to identify and mass-rear a strain of N. californicus that is more efficacious under arid conditions than the standard commercial strain from California (USA)....

article

Compensatory growth following transient intraguild predation risk in predatory mites

Andreas Walzer, Natalia Lepp, Peter Schausberger

Oikos > 124 > 5 > 603 - 609

Compensatory or catch‐up growth following growth impairment caused by transient environmental stress, due to adverse abiotic factors or food, is widespread in animals. Such growth strategies commonly balance retarded development and reduced growth. They depend on the type of stressor but are unknown for predation risk, a prime selective force shaping life history. Anti‐predator behaviours by immature...

article

Interdependent effects of male and female body size plasticity on mating behaviour of predatory mites

Andreas Walzer, Peter Schausberger

Animal Behaviour > 2015 > 100 > Complete > 96-105

The adaptive canalization hypothesis predicts that traits with low phenotypic plasticity are more fitness relevant, because they have been canalized via strong past selection, than traits with high phenotypic plasticity. Based on differing male body size plasticities of the predatory mites Phytoseiulus persimilis (low plasticity) and Neoseiulus californicus (high plasticity), we accordingly hypothesized...

article

Intraguild interactions among three spider mite predators: predation preference and effects on juvenile development and oviposition

Hasan Rahmani, Aliakbar Daneshmandi, Andreas Walzer

Experimental and Applied Acarology > 2015 > 67 > 4 > 493-505

A first step to evaluate potential negative effects of intraguild predation (IGP) when using multiple predators against a pest species is the determination of the predation behavior of the predators and the nutritional value of intraguild (IG) prey in terms of development and oviposition. Here, we investigated the predation preference of the female predatory mites Neoseiulus californicus, Typhlodromus bagdasarjani...

article

Canalization of body size matters for lifetime reproductive success of male predatory mites (Acari: Phytoseiidae)

Andreas Walzer, Peter Schausberger

Biological Journal of the Linnean Society > 111 > 4 > 889 - 899

The adaptive canalization hypothesis predicts that highly fitness‐relevant traits are canalized via past selection, resulting in low phenotypic plasticity and high robustness to environmental stress. Accordingly, we hypothesized that the level of phenotypic plasticity of male body size of the predatory mites Phytoseiulus persimilis (low plasticity) and Neoseiulus californicus (high plasticity) reflects...

article

Phenotypic plasticity in anti-intraguild predator strategies: mite larvae adjust their behaviours according to vulnerability and predation risk

Andreas Walzer, Peter Schausberger

Experimental and Applied Acarology > 2013 > 60 > 1 > 95-115

Interspecific threat-sensitivity allows prey to maximize the net benefit of antipredator strategies by adjusting the type and intensity of their response to the level of predation risk. This is well documented for classical prey-predator interactions but less so for intraguild predation (IGP). We examined threat-sensitivity in antipredator behaviour of larvae in a predatory mite guild sharing spider...

article

Integration of multiple intraguild predator cues for oviposition decisions by a predatory mite

Andreas Walzer, Peter Schausberger

Animal Behaviour > 2012 > 84 > 6 > 1411-1417

In mutual intraguild predation (IGP), the role of individual guild members is strongly context dependent and, during ontogeny, can shift from an intraguild (IG) prey to a food competitor or to an IG predator. Consequently, recognition of an offspring's predator is more complex for IG than classic prey females. Thus, IG prey females should be able to modulate their oviposition decisions by integrating...

article

Sex‐specific developmental plasticity of generalist and specialist predatory mites (Acari: Phytoseiidae) in response to food stress

ANDREAS WALZER, PETER SCHAUSBERGER

Biological Journal of the Linnean Society > 102 > 3 > 650 - 660

We studied developmental plasticity under food stress in three female‐biased size dimorphic predatory mite species, Phytoseiulus persimilis, Neoseiulus californicus, and Amblyseius andersoni. All three species prey on two‐spotted spider mites but differ in the degree of adaptation to this prey. Phytoseiulus persimilis is a specialized spider mite predator, N. californicus is a generalist with a preference...

article

Threat-sensitive anti-intraguild predation behaviour: maternal strategies to reduce offspring predation risk in mites

Andreas Walzer, Peter Schausberger

Animal Behaviour > 2011 > 81 > 1 > 177-184

Predation is a major selective force for the evolution of behavioural characteristics of prey. Predation among consumers competing for food is termed intraguild predation (IGP). From the perspective of individual prey, IGP differs from classical predation in the likelihood of occurrence because IG prey is usually more rarely encountered and less profitable because it is more difficult to handle than...

article

Oviposition Behavior of Interacting Predatory Mites: Response to the Presence of Con- and Heterospecific Eggs

Andreas Walzer, Hannes F. Paulus, Peter Schausberger

Journal of Insect Behavior > 2006 > 19 > 3 > 305-320

Oviposition behavior may be affected by the presence of potential future competitors, mates, or predators of offspring. We examined patch choice, oviposition site preference and egg production in the predaceous mites Phytoseiulus persimilis and Neoseiulus californicus (Acari: Phytoseiidae) when given a choice between paired spider mite patches with and without conspecific eggs, with and without heterospecific...

Filter options

Publication date

Last 3 years (1)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

Publication type

article (10)
book (1)

Keywords

Data set

Springer (4)
Wiley (4)
Elsevier (3)

Journal

Animal Behaviour (3)
Biological Journal of the Linnean Society (2)
Experimental and Applied Acarology (2)
Journal of Insect Behavior (1)
Oikos (1)
Pest Management Science (1)

INFONA - science communication portal

Search results for: Andreas Walzer

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Publication type

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options