6 Works

Tarakihi population genomics

Peter Ritchie

Predicting harvest impact and establishment success when translocating highly mobile and endangered species

Johannes Fischer, Heiko Wittmer, Caio Kenup, Kevin Parker, Rosalind Cole, Igor Debski, Graeme Taylor, John Ewen & Doug Armstrong
Harvesting individuals for translocations can negatively impact source populations, a critical challenge for species reduced to small populations. Consequently, translocation cohorts often remain small, reducing the establishment probability at the destination. Balancing the potential benefits and risks of such translocations is further complicated by philopatry and natural metapopulation dynamics if the target species is highly mobile. These challenges highlight the importance of translocation feasibility assessments, but such assessments often remain qualitative to date. The critically...

Reproductive maturity in boreal trees, Northwest Territories, Canada

Raquel Alfaro Sánchez, Jill F Johnstone, Steve G Cumming, Nicola Day, Michelle C Mack, Xanthe J Walker & Jennifer L Baltzer
In boreal North America, much of the landscape is covered by fire-adapted forests dominated by serotinous conifers. For these forests, reductions in fire return interval could limit reproductive success, owing to insufficient time for stands to reach reproductive maturity i.e., to initiate cone production. Improved understanding of the drivers of reproductive maturity can provide important information about the capacity of these forests to self-replace following fire. Here, we assessed the drivers of reproductive maturity in...

Data from: Decoding the dynamics of dental distributions: insights from shark demography and dispersal

Sora Kim, Justin Yeakel, Juergen Kriwet, Meghan Balk, Jaelyn Eberle, Sarah Zeichner & Dina Fieman
Shark teeth are the most abundant vertebrate fossil, and because tooth size generally correlates with body size, their accumulations document the size structure of populations. Understanding how ecological and environmental processes influence size structure, and how this extends to influence these dental distributions, may offer a window into the ecological and environmental dynamics of past and present shark populations. Here we examine the dental distributions of sand tigers, including extant Carcharias taurus and extinct Striatolamia...

Standardizing protocols for determining the cause of mortality in wildlife studies

Bogdan Cristescu, Mark Elbroch, Tavis Forrester, Maximilian Allen, Derek Spitz, Christopher Wilmers & Heiko Wittmer
Mortality site investigations of telemetered wildlife are important for cause-specific survival analyses and understanding underlying causes of observed population dynamics. Yet eroding ecoliteracy and a lack of quality control in data collection can lead researchers to make incorrect conclusions, which may negatively impact management decisions for wildlife populations. We reviewed a random sample of 50 peer-reviewed studies published between 2000 and 2019 on survival and cause-specific mortality of ungulates monitored with telemetry devices. This concise...

Impacts of abiotic and biotic factors on terrestrial leeches in

Swapna Nelaballi, Benjamin J. Finkel, Andrew B. Bernard, Gene R. Estrada, Endro Setiawan, Tatang Mitra Setia, Tri Wahyu Susanto, Raden Rhanda, Surya N/A, Jakaria N/A, Dika Andika, Sylvain Lemoine, Sarah M. Jaffe, Elizabeth J. Barrow, Živa Justinek, Heiko U. Wittmer & Andrew J. Marshall
Haemadipsid leeches are ubiquitous inhabitants of tropical and sub-tropical forests in the Indo-Pacific region. They are increasingly used as indicator taxa for biomonitoring, yet very little is known about their basic ecology. For example, to date no study has assessed the occurrence and distribution of haemadipsid leeches across naturally occurring gradients within intact habitats. We analysed a long-term data set (2012-2020) on the closely related tiger (Haemadipsa picta) and brown (Haemadipsa spp.) leech species to...

Registration Year

  • 2022

Resource Types

  • Dataset


  • Victoria University of Wellington
  • University of Colorado Boulder
  • Parker Conservation
  • University of California, Merced
  • Wilfrid Laurier University
  • University of Michigan-Ann Arbor
  • Oregon Department of Fish and Wildlife
  • University of Cambridge
  • Panthera Corporation
  • Northern Arizona University