Invasion success in communities with reciprocal intraguild predation depends on the stage structure of the resident population

نویسنده

  • M. Montserrat
چکیده

M. Montserrat ([email protected]), M. W. Sabelis, A. M. de Roos and A. Janssen, IBED, Section Population Biology, Univ. of Amsterdam, the Netherlands. MM also at: Inst. de Hortofruticultura Subtropical y Mediterr á nea “ La Mayora ” – Consejo Superior de Investigaciones Cient í fi cas (IHSM UMA CSIC), ES-29750 Algarrobo-Costa, M á laga, Spain. – S. Magalh ã es, Centre for Environmental Biology, Faculty of Sciences of the Univ. of Lisbon, Lisbon, Portugal.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Order of invasion aVects the spatial distribution of a reciprocal intraguild predator

When intraguild predation is reciprocal, i.e. two predator species kill and feed on each other, theory predicts that well-mixed populations of the two species cannot coexist. At low levels of the shared resource, only the best competitor exists, whereas if the level of the common resource is high, the Wrst species to arrive on a patch can reach high numbers, which prevents the invasion of the s...

متن کامل

Impact of intraguild predation and stage structure on simple communities along a productivity gradient.

We analyze the consequences of intraguild predation and stage structure for the possible composition of a three-species community consisting of resource, consumer, and predator. Intraguild predation, a special case of omnivory, induces two major differences with traditional linear food chain models: the potential for the occurrence of two alternative stable equilibria at intermediate levels of ...

متن کامل

Intraguild predation in raptor assemblages: a review

Intraguild predation, the killing of species that use similar resources, has been largely overlooked in raptor investigations. To help fill this gap in knowledge, we conducted a literature review, focusing on studies that tested the behavioural and demographic impact of intraguild predation on individuals, populations, and assemblages of diurnal and nocturnal raptorial species. Overall, data we...

متن کامل

Predators in low arctic tundra and their impact on community structure and dynamics

The abundance of predators and their impact on ecosystem dynamics is a vividly discussed topic in current ecology. In my studies, incorporating field observations, field experiments and theoretical modeling, I explored the importance of predators and predation in a low arctic tundra ecosystem in northern Norway. This involved observing the abundance and spatial activity of predators (raptors an...

متن کامل

Optimal intraguild foraging and population stability.

This article explores effects of adaptive intraguild predation on species coexistence and community structure in three species' food webs. Two Lotka-Volterra models that assume a trade-off between competition and predation strength are considered in detail. The first model does not explicitly model resource dynamics and is considered with both nonadaptive and adaptive intraguild predation; in t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011