The predatory behavior of Pheidole megacephala.

نویسندگان

  • Alain Dejean
  • Corrie S Moreau
  • Pierre Uzac
  • Julien Le Breton
  • Martin Kenne
چکیده

We studied the foraging and predatory behaviors of the invasive African myrmicine ant, Pheidole megacephala (F.) in its native range. Workers can singly capture a wide range of insects, including relatively large prey items. For still larger prey, they recruit at short range those nestmates situated within reach of an alarm pheromone and together spread-eagle the insect. These behaviors are complimented by a long-range recruitment (of nestmates remaining in the nest) based on prey size. P. megacephala scouts also use long-range recruitment when they detect the landmarks of termites and competing ant species, thus permitting them to avoid confronting these termites and ants solitarily.

برای دانلود رایگان 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

A revision of Pheidole Westwood (Hymenoptera: Formicidae) in the islands of the southwest Indian Ocean and designation of a neotype for the invasive Pheidole megacephala.

The myrmicine genus Pheidole Westwood is revised for the smaller islands of the Southwest Indian Ocean: Comoros, Juan de Nova Island, Mauritius, Mayotte, Reunion, and the Seychelles. Descriptions and keys are provided for the thirteen species on these islands of which seven are newly described: P. decepticon sp. n., P. dodo sp. n., P. komori sp. n, P. loki sp. n., P. megatron sp. n., P. ragnax ...

متن کامل

Agonistic Interactions Among Invasive Ant Species (Hymenoptera: Formicidae) from Two Habitats on Oahu, Hawaii

The Hawaiian Islands represent the most isolated land mass in the world, with no native ant species. To study invasive biology within two ant communities on Oahu, Hawaii we conducted laboratory bioassays to assess agonistic interactions among five introduced ant species: Leptogenys falcigera (Roger,), Camponotus variegatus (F. Smith), Anoplolepis gracilipes (F. Smith), Ochetellus glaber (Mayr),...

متن کامل

Introduced Pheidole of the world: taxonomy, biology and distribution

The objective of this study is to provide a detailed taxonomic resource for identifying and studying ants in the genus Pheidole that have established beyond their native ranges. There is an increasing need for systematists to study taxa of specific concern to 21(st) century environmental, food security and public health challenges. Systematics has an important role to play in both the theoretic...

متن کامل

Genetic Structure, Nestmate Recognition and Behaviour of Two Cryptic Species of the Invasive Big-Headed Ant Pheidole megacephala

BACKGROUND Biological invasions are recognized as a major cause of biodiversity decline and have considerable impact on the economy and human health. The African big-headed ant Pheidole megacephala is considered one of the world's most harmful invasive species. METHODOLOGY/PRINCIPAL FINDINGS To better understand its ecological and demographic features, we combined behavioural (aggression test...

متن کامل

Isolation and characterization of microsatellite loci from the invasive ant Pheidole megacephala.

We report the characterization of eight microsatellite markers in the big-headed ant Pheidole megacephala, a pest ant registered in the list of '100 of the world's worst invasive alien species'. An enrichment protocol was used to isolate microsatellite loci, and polymorphism was explored with 36 individuals collected in an invasive population from Australia and 20 individuals collected in a pop...

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

عنوان ژورنال:
  • Comptes rendus biologies

دوره 330 9  شماره 

صفحات  -

تاریخ انتشار 2007