Michael Lohr360 Environmental · Ecology Team
Michael Lohr
PhD. Natural Sciences
About
37
Publications
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Citations
Introduction
I am a Principal Zoologist at 360 Environmental and Adjunct Lecturer at Edith Cowan University. I am currently working on a variety of projects relating to anticoagulant rodenticides and their impacts on non-target fauna. Other research interests include control and ecology of introduced plants and animals and avian ecology.
Additional affiliations
April 2019 - present
Phoenix Environmental Sciences
Position
- Senior Zoologist
February 2015 - November 2019
May 2013 - May 2015
Education
February 2015 - August 2018
January 2006 - December 2009
August 2001 - May 2005
Publications
Publications (37)
Over the past 40 years, Northern bobwhite (Colinus virginianus) populations have declined range-wide. The Mid-Atlantic once held the highest densities in the country and now shows some of the worst declines. Although population parameters have been quantified throughout most of the bobwhite range, Mid-Atlantic populations have been largely unstudie...
Ka‘ena Point Natural Area Reserve on O‘ahu hosts one of the largest seabird colonies in the main Hawaiian Islands and supports three species of endangered plants. In order to stop chronic predation by invasive alien mammals on native species, a peninsula-style predator-proof fence was constructed around a 20-ha portion of the reserve in 2011. Multi...
The impacts of anticoagulant rodenticides (ARs) on non-target wildlife have been well documented in Europe and North America. While these studies are informative, patterns of non-target poisoning of wildlife elsewhere in the world may differ substantially from patterns occurring in Australia and other countries outside of cool temperate regions due...
Anticoagulant rodenticides (ARs) are commonly used worldwide to control commensal rodents. Second generation anticoagulant rodenticides (SGARs) are highly persistent and have the potential to cause secondary poisoning in wildlife. To date no comprehensive assessment has been conducted on AR residues in Australian wildlife. My aim was to measure AR...
Environmental damage caused by the intensification of agriculture may be compensated by implementing conservation projects directed towards reducing threatening processes and conserving threatened native species. In Australia, feral cats (Felis catus) have been a ubiquitous threatening process to Australian fauna since European colonisation. On Sha...
In 2010, vulnerable golden bandicoots (Isoodon auratus) were translocated from Barrow Island, Western Australia, to a mainland predator-free enclosure on the Matuwa Indigenous Protected Area. Golden bandicoots were once widespread throughout a variety of arid and semiarid habitats of central and northern Australia. Like many small-to-medium-sized m...
In 2010, vulnerable golden bandicoots (Isoodon auratus) were translocated from Barrow Island, Western Australia, to a predator-free enclosure on the Matuwa Indigenous Protected Area. Golden bandicoots were once widespread throughout a variety of arid and semi-arid habitats of central and northern Australia. Like many small to medium-sized marsupial...
In Australia, Toxoplasma gondii is an introduced parasite with a wide host range. House cats (Felis catus) are one of its definitive hosts. Little is known about T. gondii infection rates in Australian wildlife. Since cat abundance varies with landscape composition, we hypothesised that T. gondii infection would be more prevalent in urban and agric...
![Adapted PCR parameters for VKORC1 and D-loop amplification[11].](publication/344384811/figure/tbl1/AS:968222102802435@1607853546888/Adapted-PCR-parameters-for-VKORC1-and-D-loop-amplification11_Q320.jpg)
Background:
Humans routinely attempt to manage pest rodent populations with anticoagulant rodenticides (ARs). We require information on resistance to ARs within rodent populations to have effective eradication programs that minimise exposure in non-target species. Mutations to the VKORC1 gene have been shown to confer resistance in rodents with hi...
Humans routinely attempt to manage pest rodent populations with anticoagulant rodenticides (ARs). We require information on resistance to ARs within rodent populations to have effective eradication programs that minimise exposure in non-target species. Mutations to the VKORC1 gene have been shown to confer resistance in rodents with high proportion...
Reductions in genetic diversity and genetic connectivity have been documented in some predatory bird species in response to anthropogenic habitat fragmentation. The Southern Boobook (Ninox boobook) is the most common and widely-distributed owl in Australia but declines in abundance have been observed across its range. We used polymorphic microsatel...
Lead toxicity from ammunition has been shown to be a threat to scavenging birds across the globe. Despite decades of research in Europe, North and South America, Asia and Africa, there have been no studies to investigate this phenomenon in Australia despite that continent having many species of scavenging birds and widespread shooting practices. We...
Anticoagulant rodenticides (ARs) are regularly used around the world to control pest mammals. Second-generation anticoagulant rodenticides (SGARs) are highly persistent in biological tissue and have a high potential for bioaccumulation and biomagnification. Consequently, exposure and poisoning of non-target organisms has been frequently documented,...
The effects of habitat fragmentation on native wildlife can vary depending on the
type of land use occurring in the matrix between remaining habitat fragments. I used
Australian boobooks (Ninox boobook) in Western Australia to investigate interactions
between matrix type and four different potential threatening processes: secondary
poisoning by...
The presence of large numbers of free-ranging feral cats (Felis catus) has raised concern in terms of both native species predation and potential disease transmission in Hawai'i. A disease of particular concern is toxoplasmosis, caused by Toxoplasma gondii, a zoonotic protozoan parasite. We tested soil samples and cat fecal samples from cat colonie...
The presence of large numbers of free-ranging feral cats (Felis catus) has raised concern in terms of both native species predation and potential disease transmission in Hawai'i. A disease of particular concern is toxoplasmosis, caused by Toxoplasma gondii, a zoonotic protozoan parasite. We tested soil samples and cat fecal samples from cat colonie...
Secondary poisoning of non-target wildlife species by anticoagulant rodenticides has been widely documented in North America, Europe, and New Zealand but its prevalence and impacts have not been measured and assessed in Australia. The APVMA has currently scheduled a review of some rodenticides due to concerns over human health and safety. Testing o...
Alien plants pose a substantial threat to island ecosystems in Australia and worldwide. A better understanding of weed distributions is necessary to more effectively manage natural resources on islands. To address this need for Western Australian islands, we created a database of all available records of alien plants on these islands.The island wee...
Alien plants pose a substantial threat to island ecosystems in Australia and worldwide. A better understanding of weed distributions is necessary to more effectively manage natural resources on islands. To address this for Western Australian islands, we assembled a database of all available records of alien plants on these islands. In the second pa...
Non-native plants pose a substantial threat to island ecosystems in Australia and worldwide. A better understanding of weed distributions is necessary to more effectively manage natural resources on islands. To address this need for Western Australian islands, we created a database of all available records of non-native plants on these islands. Her...
Along the Pilbara coast of Western Australia (WA) there are approximately 598 islands with a total area of around 500 km2. Budget limitations and logistical complexities mean the management of these islands tends to be opportunistic. Until now there has been no review of the establishment and impacts of weeds on Pilbara islands or any attempt to pr...
Moku'auia is a 5-ha island off northeastern O'ahu, Hawai'i that supports several thousand nesting Wedge-tailed Shearwaters (Puffinus pacificus), several species of migratory shorebirds, and is critical habitat for the federally endangered 'ohai plant (Sesbania tomentosa). The island is separated from Malaekahana State Recreation Area on O'ahu by a...
Alien plants pose a substantial threat to island ecosystems in Australia and worldwide. A better understanding of weed distributions is necessary to more effectively manage natural resources on islands. To address this need for Western Australian islands, we created a database of all available records of alien plants on these islands. Here we repor...
The O‘ahu ‘Elepaio (Chasiempis ibidis) is an endangered monarch flycatcher endemic to the Hawaiian
Island of O‘ahu. Current information on abundance, distribution, and population trend is needed to help assess the species
status and identify areas where conservation efforts can be focused. We used spot-mapping methods with song playbacks to
conduct...
Feral and free-ranging cats (Felis catus) are known to prey on a wide variety of native birds in Hawai'i. At Ka'ena Point Natural Area Reserve on O'ahu, cats were known to prey on nesting seabirds but the extent of predation by indi-vidual cats was un-known. We trapped nine cats immedi-ately prior to the construction of a predator-proof fence durin...
Numerous field studies have estimated fecundity and survival rates for northern bobwhites (Colinus virginianus), but a synthetic population model based on life-stage simulation analysis (LSA) was only recently developed to examine demographic sensitivity of the finite rate of population change. We compare local demographic parameters of bobwhite ve...
Over the past 40 years, northern bobwhite (Colinus virginianus)
populations have experienced range-wide declines. Population parameters have been
gathered throughout most of the range but Mid-Atlantic populations have been largely
ignored. In my study, I sought not only to gather data on winter habitat, movement,
and selection, but also examine...
Thesis supervisor: Margaret Brittingham. Thesis (B.S.)--Pennsylvania State University, 2005. Library holds archival microfiche negative and service copy.
Projects
Projects (7)
In 2000, the overall aim for Matuwa Kurrara Kurrara was to restore the rangeland environment. Two science projects were initiated: ‘Project Rangelands Restoration … managing fire and introduced predators’ (SPP 2003-004) and this project ‘Rangeland restoration … reintroduction of native mammals’ (SPP 2012-024). These projects worked alongside the activities of the DBCA Goldfields Regional staff to manage the infrastructure and natural environment of Matuwa Kurrara Kurrara.
This project follows on from studies on Australian Boobooks and anticoagulant rodenticides which were conducted as part of my PhD. It will involve numerous collaborations to investigate a variety of topics relating to anticoagulant rodenticides, their impacts on non-target species, potential solutions aimed at mitigating these impacts, and patterns of genetic resistance to anticoagulant rodenticides.
