scholarly journals Reproduction of a dung beetle, Onthophagus gazella, fed with frozen dung of pastured cattle

1991 ◽  
Vol 42 (3) ◽  
pp. 245-248 ◽  
Author(s):  
Nobuo YAMASHITA ◽  
Hirofumi HAYAKAWA
Keyword(s):  
Dung Beetle ◽  
Onthophagus Gazella

The effects of dung beetle activity on the numbers of parasitic gastrointestinal helminth larvae recovered from pasture samples

1973 ◽  
Vol 24 (1) ◽  
pp. 161 ◽  
Author(s):  
RP Bryan
Keyword(s):  
Soil Moisture ◽  
Parasitic Nematode ◽  
Dung Beetle ◽  
Dung Beetles ◽  
Percentage Reduction ◽  
Faecal Material ◽  
Gastrointestinal Helminth ◽  
Nematode Eggs ◽  
Cattle Faeces ◽  
Onthophagus Gazella

Studies have been made of the effect of the dung beetle, Onthophagus gazella, on the release of strongyle larvae from cattle faeces onto pasture. A series of faecal pats containing parasitic nematode eggs was placed on pasture, and beetles were added to some pats to give three levels of beetle activity, viz. 100 g, 200-250 g, and 500 g of faeces per pair of beetles. These pats were duplicated on irrigated and non-irrigated pasture. In both cases the numbers of strongyle larvae migrating from pats attacked by dung beetles were significantly less than those migrating from control pats containing no dung beetles. Compared with larval recoveries from control pats, the percentage reduction in numbers of larvae migrating from pats on irrigated pasture was 50% for pats of 100 g faeces per pair of beetles, 48 % for pats of 200-250 g faeces per pair, and 84% for pats of 500 g of faeces per pair. The respective figures for pats on nonirrigated pasture were 76, 86, and 93 % reduction in larval numbers. The results indicated that strongyle larvae migrated from faecal material buried by dung beetles, provided soil moisture was adequate. More larvae were recovered from the pasture surrounding irrigated faecal pats attacked by beetles than from the non-irrigated pats. During warm dry weather, surface faecal debris remaining after beetlc attack appeared to be helminthologically sterile.

Evaluation of the attraction, lethal and sublethal effects of the faeces of ivermectin‐treated cattle on the dung beetle Digit onthophagus gazella (Coleoptera: Scarabaeidae)

2020 ◽  
Vol 59 (2) ◽  
pp. 368-374
Author(s):  
Roger I Rodríguez‐Vivas ◽  
Gertrudis S Basto‐Estrella ◽  
Enrique Reyes‐Novelo ◽  
Andreyna Arisbe Arceo‐Moran ◽  
William R Arcila‐Fuentes ◽  
...  
Keyword(s):  
Sublethal Effects ◽  
Dung Beetle ◽  
Onthophagus Gazella

scholarly journals African dung beetle Onthophagus gazella Fabricius (Coleoptera: Scarabaeidae) esterase isozymes

2001 ◽  
Vol 61 (4) ◽  
pp. 645-650 ◽  
Author(s):  
E. MARTINS ◽  
E. P. B. CONTEL
Keyword(s):  
Pupal Stage ◽  
Dung Beetle ◽  
Esterase Isozymes ◽  
Onthophagus Gazella

African beetles Onthophagus gazella from both sexes were analyzed by electrophoresis for an investigation of esterase isozymes using alpha-naphthyl propionate and methylumbelliferyl propionate as substrates. Only one of the esterases (Est. 6) reacted with one of the substrates (alpha-naphthyl propionate). Six areas of activity were found, two of them being polymorphic (Est. 3 and Est. 4). For presence of Est. 3, 337 individuals were analyzed, including descendants of 32 controlled crossings: two alleles were identified, whose frequencies are Est. 3A = 0.447 and Est. 3B = 0.553. The population is in equilibrium for this locus (qui-square = 4.18; 0.2 > P > 0.1). For Est. 4, 338 individuals, descendants of 32 controlled crossings, were analysed. In this case, three alleles were identified whose frequencies are: Est. 4A = 0.277; Est. 4B = 0.661; and Est. 4C = 0.062. The population is not in equilibrium for this locus (qui-square = 40.259; p < 0.001). Two esterases were detected only in the pupal stage and another one in larvae. Of the 23 loci analyzed in these insects up to now, 3 are polymorphic (13%), which indicates very low variability in the population here studied.

The effect of the dung beetle, Onthophagus gazella, on the ecology of the infective larvae of gastrointestinal nematodes of cattle

1976 ◽  
Vol 27 (4) ◽  
pp. 567 ◽  
Author(s):  
RP Bryan
Keyword(s):  
Temperature Variation ◽  
External Environment ◽  
Dung Beetle ◽  
Gastrointestinal Nematodes ◽  
Climatic Conditions ◽  
Faecal Material ◽  
Infective Larvae ◽  
Nematode Larvae ◽  
Extremes Of Temperature ◽  
Onthophagus Gazella

The ecology of nematode larvae infective for cattle was studied in the vicinity of standardized dung pats experimentally exposed lo the dung beetle, Onthophagus gazella. In moist climatic conditions two, 10 and 30 pairs of O . Gazella reduced the numbers of larvae on grass surrounding dung pats by 40, 74 and 66% respectively, compared with control pats not exposed to beetles. After 84 days, many larvae remained in control pats and pats attacked by two pairs of beetles, but few were found in other pat types. Infective larvae survived for at least 84 days in soil and buried faecal material, and larval migration through soil occurred. The daily temperature variation within dung beetle burrows was considerably less than that of the external environment. This insulation against extremes of temperature probably contributed to the longevity of buried larvae.

Phyllophaga and Related Species (Coleoptera: Scarabaeidae) Collected in Black-light Traps in Alabama Pastures

2000 ◽  
Vol 35 (3) ◽  
pp. 311-326 ◽  
Author(s):  
Kathy L. Flanders ◽  
Zandra D. DeLamar ◽  
Paul K. Lago
Keyword(s):  
Dung Beetle ◽  
Abundant Species ◽  
The United States ◽  
Light Traps ◽  
Annual Life Cycle ◽  
African Species ◽  
Black Light ◽  
Geographic Regions ◽  
June July ◽  
Onthophagus Gazella

This study reports the occurrence of the adults of Phyllophaga spp. and other major scarab species in three different geographic regions of Alabama. Thirty-three species of Phyllophaga were found during the trapping study. Five species accounted for 97% of the specimens of Phyllophaga trapped in Marion Junction: P. crinita (Burmeister), P. forbesi (Glasgow), P. hirtiventris (Horn), P. mississippiensis Davis, and P. perlonga Davis. Two species accounted for 55% of the specimens trapped in Camp Hill: P. micans (Knoch) and P. hirticula (Knoch). At Winfield, P. crenulata (Froelich), P. ephilida (Say), P. latifrons LeConte, P. micans, and P. quercus (Knoch) were the most abundant species, making up 49% of the specimens. Of these 11 most abundant species, 5 species were collected in spring (March, April and/or May): P. crenulata, P. hirticula, P. micans, P. mississippiensis, and P. perlonga. Phyllophaga hirtiventris adults were collected in late May–June. Adults of P. crinita were collected in June and early July, and were abundant in each year, suggesting that the species has an annual life cycle in Alabama. Phyllophaga ephilida, P. forbesi, P. forbesi, P. latifrons and P. quercus adults were collected in mid-summer (June, July and/or August). Six species of Phyllophaga found during this study have not been previously reported from Alabama: P. bipartita Horn, P. congrua (LeConte), P. hirtiventris, P. mississippiensis, P. praetermissa (Horn), and P. soror Davis. Cyclocephala lurida Bland, Dyscinetus morator (F.), Euetheola humilis rugiceps (LeConte), and Ligyrus gibbosus gibbosus (DeGeer), other potential pests of grasses, were abundant in the black-light traps. The dung beetle, Onthophagus gazella F., an African species that was purposely introduced into the United States, was abundant at all three sites.

Sign in / Sign up

Export Citation Format

Share Document