Results 121 to 130 of about 637,931 (281)

Mammals of Southwestern Arkansas Part II. Rodents [PDF]

, 1989
This study investigated the composition and habitat affinities of the mammalian fauna of southwestern Arkansas. The study area was comprised of the 21 counties located south and/or west of and including Pulaski County.
England, Daniel R., McDaniel, V. Rick, Steward, Tim W.   +2 more
core   +2 more sources

GIEMSA BANDING IN MALE RAT (RATTUS RATTUS)

, 2022
ABSTRACT G-banding analysis was carried out on specimens of house rats. The diploid chromosome number of Rattus rattus is 2n=38 and the karyotype formula is 16m + 4sm+ 16a + 1X+1Y. The bands produced were specific for each chromosome pair in this animal. The karyotype by G-banding was prepared for male rat including 36 autosomes contains 16 metacentric,
openaire   +1 more source

Drones: Emergence of a transformative technology for island rodent eradications

Conservation Science and Practice, EarlyView.
Drones have emerged as a potentially powerful tool to address an ongoing need for alternative rodent eradication solutions on remote islands. This potential has now been demonstrated in a diverse set of operations across the Pacific. In the coming decades, this novel toolset also offers the possibility to step beyond existing paradigms and imagine a ...
Donal Smith, Rohan H. Clarke, Doug Gillings, David Will   +3 more
wiley   +1 more source

Mutual information for examining correlations in DNA

, 2004
This paper examines two methods for finding whether long-range correlations exist in DNA: a fractal measure and a mutual information technique. We evaluate the performance and implications of these methods in detail.
A. ALLISON, D. ABBOTT, Dover G. A., Joset F., M. J. BERRYMAN   +4 more
core   +2 more sources

Temporally‐indexed multi‐species density impact functions: Quantifying timing and impact of invasive predators on seabird breeding success

Conservation Science and Practice, EarlyView.
Conserving threatened species often requires effective predator suppression strategies, particularly on islands where introduced predators pose significant threats. Density‐impact functions provide a framework to quantify the relationships between predator abundance and impact but are currently limited to a single species with invariant impact.
Michael R. Fox, Todd J. Landers, Brendon J. Dunphy, James C. Russell   +3 more
wiley   +1 more source

A cosmopolitan parasite of Rattus in the Galápagos rodents raises conservation concerns

Conservation Science and Practice, EarlyView.
We draw attention to a recent study that identified the invasive nematode Mastophorus muris, typically associated with Rattus, infecting two endemic Galápagos rats on islands where no invasive rodents have been previously recorded. This unexpected finding raises concerns about undetected rodent introductions and highlights the urgent need for ...
Jadyn Hartwig, C. Miguel Pinto
wiley   +1 more source

The rats in Hawaiian sugarcane [PDF]

, 1970
Heavy losses In Hawaiian sugarcane are caused by Polynesian rats (Rattus exulans), Norway rats (R. norvegicus), and black rats (R. rattus). Relative population levels, movement patterns, damage to sugarcane, and suggested timing of control during five ...
Hood, Glenn A., Lindsey, Gerald D., Nass, Roger D.   +2 more
core  

Drivers of variation in yellow crazy ant (Anoplolepis gracilipes) abundance and impacts on native fauna in an atoll ecosystem

Conservation Science and Practice, EarlyView.
Yellow crazy ants (Anoplolepis gracilipes; YCA) are widespread invaders of islands across the Pacific and Indian Oceans. We investigated the ecological preferences and impacts of this species on a Polynesian atoll. We show that even at low abundances, this species can have important impacts on the fauna, including seabirds, and require management ...
Miléna Philip, Simon Ducatez, Jayna L. DeVore   +2 more
wiley   +1 more source

Evaluation of tissue response of experimental calcium silicate‐based endodontic sealers: An in vivo study

European Journal of Oral Sciences, EarlyView.
Abstract The aim of this study was to evaluate whether the experimental sealers, composed of tricalcium silicate (CaSi) and CaSi supplemented with calcium hypochlorite (CaSi‐H), stimulate tissue repair. The tissue response of experimental materials was compared with commercially available materials Bio‐C sealer (BC sealer) and BioRoot (BROOT ...
Evelin Carine Alves Silva, Lucas de Andrade Rodrigues, Estela Sasso‐Cerri, Mário Tanomaru‐Filho, Juliane Maria Guerreiro‐Tanomaru, Paulo Sérgio Cerri   +5 more
wiley   +1 more source

Exposure to the Oestrogenic Pollutant 17α‐Ethinyl Estradiol (EE2) Does Not Alter the Behaviour of a Coastal Marine Fish, Cristiceps australis

Ethology, EarlyView.
Environmental contamination with the synthetic estrogen 17α‐ethinyl estradiol (EE2) is widespread in coastal ecosystems, yet behavioural effects in marine fishes remain poorly understood. We exposed southern crested weedfish (Cristiceps australis) to low and high EE2 concentrations for 14 days and assessed boldness and anxiety using a refuge‐use assay.
Shiho Ozeki, Rhiannon V. Eastment, Jack L. Manera, Raiko Rafeeq, Anne Peters, Jake M. Martin, Bob B. M. Wong   +6 more
wiley   +1 more source