Michael Lohr

Michael Lohr
360 Environmental · Ecology Team

PhD. Natural Sciences

About

37
Publications
11,044
Reads
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282
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
Edith Cowan University
Position
  • PhD Student
May 2013 - May 2015
Department of Environment and Conservation (Western Australia)
Position
  • Researcher
Education
February 2015 - August 2018
Edith Cowan University
Field of study
  • Biology and Environmental Sciences
January 2006 - December 2009
University of Delaware
Field of study
  • Wildlife Ecology
August 2001 - May 2005
Pennsylvania State University
Field of study
  • Wildlife and Fisheries Science

Publications

Publications (37)
Article
Full-text available
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...
Article
Full-text available
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...
Preprint
Full-text available
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...
Preprint
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Preprint
Full-text available
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...
Article
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...
Article
Full-text available
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...
Preprint
Full-text available
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...
Article
Full-text available
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...
Article
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...
Article
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,...
Thesis
Full-text available
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...
Article
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...
Preprint
Full-text available
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...
Presentation
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...
Data
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Thesis
Full-text available
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
Thesis supervisor: Margaret Brittingham. Thesis (B.S.)--Pennsylvania State University, 2005. Library holds archival microfiche negative and service copy.

Network

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Projects

Projects (7)
Project
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.
Project
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.