Food habits of Aenictus army ants and their effects on the ant community in a rain forest of Borneo

2000 ◽  
Vol 47 (1) ◽  
pp. 42-49 ◽  
Author(s):  
H. Hirosawa ◽  
S. Higashi ◽  
M. Mohamed
Keyword(s):  
Rain Forest ◽  
Food Habits ◽  
Army Ants ◽  
Ant Community

Ant community structure along an extended rain forest–savanna gradient in tropical Australia

2008 ◽  
Vol 24 (4) ◽  
pp. 445-455 ◽  
Author(s):  
Laura T. van Ingen ◽  
Ricardo I. Campos ◽  
Alan N. Andersen
Keyword(s):  
Community Structure ◽  
Rain Forest ◽  
Habitat Type ◽  
Ant Communities ◽  
Savanna Woodland ◽  
Ant Community ◽  
Open Forest ◽  
Forest Regrowth ◽  
Tropical Australia ◽  
Ant Community Structure

AbstractIn mixed tropical landscapes, savanna and rain-forest vegetation often support contrasting biotas, and this is the case for ant communities in tropical Australia. Such a contrast is especially pronounced in monsoonal north-western Australia, where boundaries between rain forest and savanna are often extremely abrupt. However, in the humid tropics of north-eastern Queensland there is often an extended gradient between rain forest and savanna through eucalypt-dominated tall open forest. It is not known if ant community structure varies continuously along this gradient, or, if there is a major disjunction, where it occurs. We address this issue by sampling ants at ten sites distributed along a 6-km environmental gradient from rain forest to savanna, encompassing the crest and slopes of Mt. Lewis in North Queensland. Sampling was conducted using ground and baited arboreal pitfall traps, and yielded a total of 95 ant species. Mean trap species richness was identical in rain forest and rain-forest regrowth, somewhat higher in tall open forest, and twice as high again in savanna woodland. The great majority (78%) of the 58 species from savanna woodland were recorded only in this habitat type. MDS ordination of sites based on ant species composition showed a continuum from rain forest through rain-forest regrowth to tall open forest, and then a discontinuity between these habitat types and savanna woodland. These findings indicate that the contrast between rain forest and savanna ant communities in tropical Australia is an extreme manifestation of a broader forest-savanna disjunction.

Jaguar (Panthera onca) Food Habits in Atlantic Rain Forest of Southeastern Brazil1

Biotropica ◽  
2001 ◽  
Vol 33 (4) ◽  
pp. 691-696 ◽  
Author(s):  
Ricardo C. Garla ◽  
Eleonore Z. F. Setz ◽  
Nivar Gobbi
Keyword(s):  
Rain Forest ◽  
Food Habits ◽  
Atlantic Rain Forest ◽  
Panthera Onca

Ant recolonisation of rehabilitated bauxite mines of Poços de Caldas, Brazil

1992 ◽  
Vol 8 (01) ◽  
pp. 97-108 ◽  
Author(s):  
Jonathan D. Majer
Keyword(s):  
Rain Forest ◽  
Tree Canopy ◽  
Native Vegetation ◽  
Canopy Closure ◽  
Climatic Region ◽  
Climatic Zones ◽  
Ant Community ◽  
Poços De Caldas ◽  
Bauxite Mines ◽  
Practical Implications

ABSTRACTThe ant species were sampled in one campo (grassy shrubland), one mata (semideciduous rain forest) and 11 rehabilitated bauxite mine plots at Poços de Caldas, in the humid sub-tropical climatic region of Brazil. Rehabilitation was either by planting AustralianEucalyptusspp, the BrazilianMimosa scabrellatree, or by planting mixed mata trees. Sixty-eight ant species were recorded, of which 26 were exclusively found in the native vegetation and 16 were confined to the rehabilitated plots. Ant species richness built up most rapidly in areas rehabilitated with mixed mata species and least rapidly in areas withEucalyptus. Younger rehabilitated plots appeared to be developing a campo-type ant community, although evidence indicates that more mata ant species will colonise once tree canopy closure takes place. Rate of ant return in Australia is positively correlated with the quantity and distribution of rainfall – the rates in the current study concur with those from humid sub-tropical climatic zones within Australia, suggesting that similar constraints to the succession may be operating. If found to be the case, this would have practical implications for planning and evaluating the success of rehabilitation.

Food Habits of the Snake Psammophis phillipsi from the Continuous Rain-Forest Region of Southern Nigeria (West Africa)

2003 ◽  
Vol 37 (1) ◽  
pp. 208-211 ◽  
Author(s):  
Godfrey C. Akani ◽  
Edem A. Eniang ◽  
Itohowo J. Ekpo ◽  
Francesco M. Angelici ◽  
Luca Luiselli
Keyword(s):  
West Africa ◽  
Rain Forest ◽  
Food Habits ◽  
Forest Region ◽  
Southern Nigeria

scholarly journals Attendance and Co-Occurrence of Birds Following Army Ants in the Atlantic Rain Forest

The Condor ◽  
2010 ◽  
Vol 112 (3) ◽  
pp. 571-578 ◽  
Author(s):  
Marco Aurélio Pizo ◽  
Adriano S. Melo
Keyword(s):  
Rain Forest ◽  
Atlantic Rain Forest ◽  
Army Ants

Avian attendance and foraging at army-ant swarms in the tropical rain forest of Los Tuxtlas, Veracruz, Mexico

1989 ◽  
Vol 5 (3) ◽  
pp. 281-292 ◽  
Author(s):  
Rosamond Coates-Estrada ◽  
Alejandro Estrada
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Foraging Ecology ◽  
Bird Species ◽  
Central Zone ◽  
Los Tuxtlas ◽  
Army Ants ◽  
Important Species ◽  
Army Ant ◽  
Oporornis Formosus

ABSTRACTForaging and attendance of birds at army-ant swarm raids were studied in the tropical rain forest of Los Tuxtlas, Mexico. Sixty-eight raiding swarms were intercepted over a four-year period of which 57% were Eciton burchelli and 43% Labidus praedator. A total of 461 birds (37 species/12 families) were recorded at swarms of E. burchelli and 208 birds (34 species/10 families) were recorded at L. praedator swarms. The mean number of bird species detected per swarm was 7.2 at E. burchelli raids and 5.6 at L. praedator raids. Red-throated ant-tanagers (Habia fuscicauda) were most frequently seen at the swarms of both army-ant species. Other important species were the golden-crowned warbler (Basileuterus culicivorus), the white-breasted wood wren (Henicorhina leucosticta) and the Kentucky warbler (Oporornis formosus). Swarms of both army-ant species were active year-round. Birds weighing between 20 and 40 g dominated perches closest to the ground and the central zone of the swarms, richest in animal prey. Birds weighing less than 20 g occupied higher perches and tended to forage in more peripheral zones. At Los Tuxtlas raiding swarms of army ants are important in the foraging ecology of 44 bird species, including 12 North American migrants.

scholarly journals Biogeographical variation on craniomandibular morphology in pallas’s squirrel \(\textit{Callosciurus erythraeus}\) (Pallas, 1779) (Rodentia: Sciuridae) in Vietnam

2021 ◽  
Vol 43 (4) ◽  
Author(s):  
Vu Thuy Duong ◽  
Nguyen Truong Son ◽  
Bui Tuan Hai ◽  
Ly Ngoc Tu ◽  
Dang Huy Phuong ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Rain Forest ◽  
Food Habits ◽  
Vegetation Type ◽  
Principal Component ◽  
Morphological Adaptation ◽  
Tropical Lowland ◽  
Callosciurus Erythraeus ◽  
Biogeographical Variation ◽  
Feeding Resources

Different forest vegetations provide herbivorous small mammals with different resources, forcing adaptation since food habits depend on available resources. We expect differences in vegetation to be reflected in the size and shape of the skull and mandible as a result of potentially different feeding resources. Therefore, we analyzed the craniomandibular characteristics of Pallas’s squirrel (Callosciurus erythraeus) in Vietnam. This species commonly occurs in different vegetations in Vietnam, making it a good model for examining morphological adaptation to vegetation type. We analyzed morphologically the skulls and mandibles of 156 specimens collected from 31 localities in Vietnam from 1960 to the present. Principal component analysis showed that females occurring in the tropical lowland evergreen rain forest were clearly separated from those in other vegetations.

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