The Influence of Habitat Type and the Presence of an Invasive Wetland Plant (Phalaris arundinacea) on Capture Rates of Sympatric Rare and Common Gartersnake Species (Thamnophis butleriandThamnophis sirtalis)

2013 ◽  
Vol 47 (1) ◽  
pp. 126-130 ◽  
Author(s):  
Joshua M. Kapfer ◽  
Kirsten Doehler ◽  
Robert Hay
Keyword(s):  
Habitat Type ◽  
Phalaris Arundinacea ◽  
Wetland Plant ◽  
Capture Rates

scholarly journals The Effect of Sound Lure Frequency and Habitat Type on Male Aedes albopictus (Diptera: Culicidae) Capture Rates With the Male Aedes Sound Trap

2020 ◽  
Author(s):  
Tom Swan ◽  
Tanya L Russell ◽  
Thomas R Burkot ◽  
Jianyi Liu ◽  
Scott A Ritchie ◽  
...  
Keyword(s):  
Vector Control ◽  
Aedes Albopictus ◽  
Habitat Type ◽  
Evidence Based ◽  
Fine Scale ◽  
Effective Frequency ◽  
Vector Surveillance ◽  
Remote Areas ◽  
Baseline Information ◽  
Capture Rates

Abstract The global distribution of Aedes albopictus (Skuse) is rapidly expanding which has contributed to the emergence and re-emergence of dengue and chikungunya outbreaks. Improvements in vector surveillance are necessary to facilitate optimized, evidence-based vector control operations. Current trapping technology used to target Ae. albopictus and other Aedes species for vector surveillance are limited in both scale and scope, thus novel tools are required. Here, we evaluated the Male Aedes Sound Trap (MAST) for its capacity to sample male Ae. albopictus. Aims of this study were twofold: 1) to determine the most effective frequency for capturing male Ae. albopictus and 2) to investigate fine-scale variations in male Ae. albopictus abundance. MASTs which produced sound lure frequencies between 500 and 650 Hz captured significantly more male Ae. albopictus than those with sound lure frequencies set to 450 Hz. Further, the higher sound lure frequency of 700 Hz significantly reduced catches relative to 650 Hz. MASTs placed in woodland habitats captured significantly more male Ae. albopictus than MASTs placed near houses. These results provide baseline information for optimizing sound lure frequencies and placement of the MAST to sample male Ae. albopictus in remote areas.

A wetland plant, Phalaris arundinacea, accumulates nitrogen and phosphorus during senescence

2020 ◽  
Vol 27 (31) ◽  
pp. 38928-38936 ◽  
Author(s):  
Xunbing Huang ◽  
Shutong Lei ◽  
Guanqun Wang ◽  
Bo Zeng
Keyword(s):  
Phalaris Arundinacea ◽  
Wetland Plant ◽  
Nitrogen And Phosphorus

scholarly journals Spatial dynamics of understorey insectivorous birds and arthropods in a southeastern Brazilian Atlantic woodlot

2011 ◽  
Vol 71 (1) ◽  
pp. 1-7 ◽  
Author(s):  
MA. Manhães ◽  
MM. Dias
Keyword(s):  
Spatial Distribution ◽  
Spatial Dynamics ◽  
Habitat Type ◽  
Bird Species ◽  
Southeastern Brazil ◽  
Insectivorous Birds ◽  
Montane Rain Forest ◽  
Minas Gerais State ◽  
Arthropod Fauna ◽  
Capture Rates

Spatial distribution and spatial relationships in capture rates of understorey insectivorous birds and density of arthropods were investigated in a patch of upper montane rain forest in Minas Gerais state, southeastern Brazil, from January to December 2004. The composition of the arthropod fauna collected was similar to that reported for other tropical forests, with predominance of Araneae, Coleoptera, Hymenoptera and Hemiptera non-Heteroptera. A total of 26 bird species were captured, among which the more common were Dysithamnus mentalis, Conopophaga lineata, Platyrinchus mystaceus, Basileuterus culicivorus and Sclerurus scansor. Variation in the bird capture rates among sampling net lines were not correlated with arthropod density. Rather, individual analyses of some bird species suggest that spatial distribution of understorey insectivorous birds is better explained by habitat type.

Factors affecting pitfall capture rates of small ground vertebrates in arid South Australia. II. Optimum pitfall trapping effort

2001 ◽  
Vol 28 (1) ◽  
pp. 61 ◽  
Author(s):  
K. E. Moseby ◽  
J. L. Read
Keyword(s):  
Habitat Type ◽  
South Australia ◽  
Trapping Efficiency ◽  
High Rate ◽  
Pitfall Trapping ◽  
Mammal Species ◽  
Terrestrial Vertebrates ◽  
Reptile Species ◽  
Capture Rates ◽  
Olympic Dam

Pitfall trapping is widely used for sampling small terrestrial vertebrates. This study investigated the influence of trapping period, number of trap sites and drift fences on the capture rates of small vertebrates in order to ascertain optimum pitfall trapping efficiency. Capture rates at fenced pits were five times higher than at unfenced pits. Our study indicates that one fenced site established in chenopod shrubland in the Olympic Dam region and trapped for four nights yielded less than one third of the local chenopod shrubland reptile inventory. Capture rates of reptiles at Olympic Dam in arid South Australia were significantly higher on the first three nights of trapping than on the seven subsequent nights. The most efficient number of trap nights for maximising the number of reptile species captured was five nights. Trapping only a single pitfall site per habitat type for 5 nights captured approximately 30% of the reptile species in that habitat compared with 55%, 65% and 73% for three, five and ten sites respectively. Typically, approximately 70% of the reptile species in chenopod shrubland were captured by trapping 5 sites for 7 nights, a method recommended for thorough surveys of species present in chenopod shrublands. Captures of mammals were more variable than those of reptiles and, as a result, sampling of mammal species benefited from more trapping nights than did sampling of reptiles. New mammal species continued to be recorded at a high rate for 8 nights and even 10 sites trapped for 10 nights typically yielded only 60–80% of the species present in chenopod shrubland. Standard 4-night trapping periods adopted by most surveys will fail to detect many rare species, or those that are difficult to trap. Repeated 7-night trapping sessions for up to 21 nights are recommended for surveys where more accurate species inventories are required.

The effect of habitat type and seasonal conditions on fauna in two areas of the Tanami Desert

2001 ◽  
Vol 28 (3) ◽  
pp. 247 ◽  
Author(s):  
Rachel Paltridge ◽  
Richard Southgate
Keyword(s):  
Species Richness ◽  
Small Mammals ◽  
Habitat Type ◽  
Relative Importance ◽  
Significant Difference ◽  
Central Australia ◽  
Species Richness And Abundance ◽  
Taxonomic Groups ◽  
Track Counts ◽  
Capture Rates

Australian deserts are characterised by highly patterned plant productivity and an extremely unpredictable climate. The Tanami Desert in central Australia is dominated by vast sandplains interspersed with more productive habitats such as palaeodrainage lines. During 1996 and 1997 fauna surveys were conducted in two areas of the Tanami Desert to investigate the relative importance of palaeodrainage habitat for fauna under different seasonal conditions. The two areas were at latitudes separated by approximately 400 km, and during the study period the northern study area (Tennant) received considerably more rainfall than the southern study area (Kintore). The species richness and abundance of a range of taxonomic groups were compared between the two study areas and between palaeodrainage habitat and adjacent sandplain habitat. The only significant difference between habitats was that small reptiles were more abundant in sandplain than palaeodrainage habitat. Overall, bilbies, bustards and macropods were significantly more abundant at Tennant than Kintore, but significantly more small mammals were captured at Kintore. In both habitats and areas, capture rates, track counts and species richness of reptiles varied significantly with season. The biomass of invertebrates captured also showed significant temporal fluctuations. Burrowing frogs were active only after rain, and birds showed significant fluctuations in abundance and species richness associated with rainfall. The abundance of small mammals did not vary significantly during this study. Overall, local seasonal conditions were generally more important determinants of the abundance of fauna in the spinifex grasslands of central Australia than was habitat type.

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