ULRICH WJ Maschwitz

ULRICH WJ Maschwitz


Prominent publications by ULRICH WJ Maschwitz

KOL Index score: 12215

Some species of the paleotropical tree genus Macaranga (Euphorbiaceae) live in close association with ants. The genus comprises the full range of species from those not regularly inhabited by ants to obligate myrmecophytes. In Malaysia (Peninsular and Borneo) 23 of the 52 species are known to be ant-associated (44%). The simplest structural adaptation of plants to attract ants are extrafloral nectaries. We studied the distribution of extrafloral nectaries in the genus Macaranga to assess ...

Also Ranks for: Extrafloral Nectaries |  genus macaranga |  ant species |  obligate myrmecophytism |  paleotropical tree
KOL Index score: 10233

FIALA, B. & MASCHWITZ, U., 1992. Food bodies and their significance for obligate ant-association in the tree genus Macaranga (Euphorbiaceae). The production of extrafloral nectar and food bodies plays an important role in many tropical ant-plant mutualisms. In Malaysia, a close association exists between ants and some species of the pioneer tree genus Macaranga (Euphorbiaceae). Macaranga is a very diverse genus which exhibits all stages of interaction with ants, from facultative to ...

Also Ranks for: Food Bodies |  genus macaranga |  obligate ant |  extrafloral nectar |  pioneer tree
KOL Index score: 9679

The pioneer tree Macaranga in SE Asia has developed manyfold associations with ants. The genus comprises all stages of interaction with ants, from facultative relationships to obligate myrmecophytes. Only myrmecophytic Macaranga offer nesting space for ants and are associated with a specific ant partner. The nonmyrmecophytic species are visited by a variety of different ant species which are attracted by extrafloral nectaries (EFN) and food bodies. Transitional Macaranga species like M. ...

Also Ranks for: Macaranga Species |  ant association |  food bodies |  herbivore damage |  pioneer tree
KOL Index score: 8871

In the humid tropics of SE Asia there are some 14 myrmecophytic species of the pioneer tree genus Macaranga (Euphorbiaceae). In Peninsular Malaysia a close association exists between the trees and the small, non-stinging myrmicine Crematogaster borneensis. These ants feed mainly on food bodies provided by the plants and have their colonies inside the hollow internodes. In a ten months field study we were able to demonstrate for four Macaranga species (M. triloba, M. hypoleuca, M. hosei, ...

Also Ranks for: Host Plant |  south east |  macaranga species |  food bodies |  peninsular malaysia
KOL Index score: 8810

Summary: In the tropical peat swamp forests of South-East Asia, the ant-plant Macaranga puncticulata is specifically associated with Camponotus (Colobopsis) sp. 1 (Formicidae: Formicinae), a member of the C. saundersi-group. This ant shows a variety of adaptations to its plant-bound mode of life. The queens are capable of locating young M. puncticulata plants inside the forest and of chewing entrance holes into the domatia by themselves. C. (Colobopsis) sp.1 nests were found exclusively ...

Also Ranks for: Macaranga Puncticulata |  host plants |  partner ant |  scale insects |  food bodies
KOL Index score: 8777

To elucidate the evolution of one of the most species-rich ant-plant symbiotic systems, the association between Crematogaster (Myrmicinae) and Macaranga (Euphorbiaceae) in South-East Asia, we conducted a phylogenetic analysis of the ant partners. For the phylogenetic analysis partial mitochondrial cytochrome oxidase I and II were sequenced and Maximum Parsimony analysis was performed. The analyzed Crematogaster of the subgenus Decacrema fell into three distinct clades which are also ...

Also Ranks for: Subgenus Decacrema |  macaranga euphorbiaceae |  phylogenetic analysis |  ant partners |  colony structure
KOL Index score: 8363

Many species of the paleotropical pioneer tree genus Macaranga Thou. (Euphorbiaceae) live in association with ants. Various types of mutualistic interactions exist, ranging from the attraction of unspecific ant visitors to obligate myrmecophytism. In the latter, nesting space and food bodies are exchanged for protection by highly specific ant partners (mainly species of the myrmicine genus Crematogaster). As a first step toward elucidating the coevolution of ant-plant interactions in the ...

Also Ranks for: Phylogenetic Relationships |  plant dna |  macaranga euphorbiaceae |  mutualistic interactions |  sequence analysis
KOL Index score: 8233

The biologically interesting ant-plant association, myrmecophytism, occurs in ca. 140 of the 11,000 species and 22 of the 630 genera of the coffee family (Rubiaceae). These myrmecophytic Rubiaceae species are predominantly distributed in Southeast Asia, especially the Malesian region, with comparatively few species in mainland Africa and the Neotropics. The mostly Southeast Asian genus Neonauclea s.s is one of the three Rubiaceae genera with extensive radiation of myrmecophytes and also ...

Also Ranks for: Neonauclea Species |  extensive radiation |  phylogenetic analyses |  phylogeny rubiaceae |  animals ants
KOL Index score: 8007

Based on pure culture studies and DNA phylogenetic analyses, black yeasts (Chaetothyriales, Ascomycota) are shown to be widely distributed and important components of numerous plant-ant-fungus networks, independently acquired by several ant lineages in the Old and New World. Data from ITS and LSU nu rDNA demonstrate that a high biodiversity of fungal species is involved. There are two common ant-fungus symbioses involving black yeasts: (1) on the carton walls of ant nests and galleries, ...

Also Ranks for: Black Yeasts |  domatia fungi |  fungal species |  antplant symbiosis |  ant nests
KOL Index score: 7600

Summary: Socially parasitic ants usually live in dependence on closely related host species. An instance of obligatory social parasitism by a formicine ant, Polyrhachis lama, on colonies of a ponerine ant, Diacamma sp., from Java is described. Reproductive females of both species coexist in the nests, in which one gamergate queen of the Diacamma host is always found. Dealate females (gynomorphs) of the parasite species are rare (7 in a total of 48 mixed colonies), and only 2 out of 4 ...

Also Ranks for: Social Parasitism |  parasite species |  parasitic ants |  formicine ant |  mixed colonies
KOL Index score: 7257

The nest construction behaviour of two new Camponotus (Karavaievia) species from Malaysia, which were described by Dumpert (1985) as C. texens and C. gombaki, were examined. Both species weave silk nests, which are attached under leaves in the case of C. texens and between leaves in the case of C. gombaki. While C. texens regularly houses scale insects in its pavilions, single scale insects were found in only 3 out of 94 C. gombaki pavilions. The pavilions of C. texens have as a rule one ...

Also Ranks for: Scale Insects |  texens gombaki |  pavilions ants |  nest construction |  karavaievia species
KOL Index score: 7098

Discussion about thrips (Thysanoptera) as main pollinators has been controversial in the past because thrips do not fit the preconception of an effective pollinator. In this study, we present evidence for thrips pollination in the dioecious pioneer tree genus Macaranga (Euphorbiaceae). Macaranga hullettii is pollinated predominantly by one thrips species, Neoheegeria sp. (Phlaeothripidae, Thysanoptera). As a reward for pollinators, the protective floral bracteoles function as breeding ...

Also Ranks for: Southeast Asia |  thrips pollination |  breeding sites |  flowering phenology |  ant plant
KOL Index score: 7026

Myrmecophiles are animals that live in close association with ants and that frequently develop elaborate mechanisms to infiltrate their well-defended host societies. We compare the social integration strategies of two myrmecophilic species, the spider, Gamasomorpha maschwitzi, and the newly described silverfish, Malayatelura ponerophila gen. n. sp. n., into colonies of the ponerine army ant, Leptogenys distinguenda (Emery) (Hymenoptera: Formicidae). Both symbionts use chemical mimicry ...

Also Ranks for: Social Integration |  leptogenys distinguenda |  chemical mimicry |  host ants |  gamasomorpha maschwitzi

Key People For Food Bodies

Top KOLs in the world
Fred * *******
cecropia peltata food bodies cyanophyte cephalodia
extrafloral nectaries food bodies genus macaranga
DENNIS * ******
rain forest pearl bodies pyrrolizidine alkaloids
ULRICH ** *********
food bodies ant species pasoh forest reserve
Martin ****
extrafloral nectar lima bean induced resistance
Karl ****** **********
west africa ivory coast comoé national park

ULRICH WJ Maschwitz:Expert Impact

Concepts for whichULRICH WJ Maschwitzhas direct influence:Food bodies,  Army ant,  Scale insects,  Genus macaranga,  Trail pheromone,  Macaranga species,  Pasoh forest reserve,  Ant species.

ULRICH WJ Maschwitz:KOL impact

Concepts related to the work of other authors for whichfor which ULRICH WJ Maschwitz has influence:Ant species,  Social insects,  Extrafloral nectaries,  Defensive secretion,  Metapleural gland,  Alarm pheromone,  Food bodies.



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Fachbereich Biowissenschaften, Johann Wolfgang Goethe Universität Frankfurt, Anemonenweg 33, 63263, Neu-Isenburg, Germany | Anemonenweg 33, 63263, Neu-Isenburg, Germany | Department of Biology, J.W. Goethe-University, Frankfurt/M, Germany | Former AK