• Polar bear ( Ursus maritimus ) migration from maternal dens in western Hudson Bay

      Yee, Meredith; Reimer, Jody; Lunn, Nicholas J.; Togunov, Ron R.; Pilfold, Nicholas W.; McCall, Alysa G.; Derocher, Andrew E. (2017)
      Migration is a common life history strategy among Arctic vertebrates, yet some of its aspects remain poorly described for some species. In February-March, post-parturient polar bears (Ursus maritimus) in western Hudson Bay, Canada, migrate from maternity den sites on land to the sea ice with three- to four-month-old cubs....
    • Population abundance and habitat utilization of bottlenose dolphins in the Mississippi Sound. Aquatic Conservation: Marine and Freshwater

      Miller, Lance J.; Mackey, A.D.; Solangi, M.; Kuczaj, S.A. (2013)
      Distance sampling principles were utilized to examine population density and abundance for bottlenose dolphins (Tursiops truncatus) in the Mississippi Sound. Information was collected during summer and winter to allow for examination of habitat utilization and abundance during two different seasons. Within the study area of the Mississippi Sound there are approximately 2225 bottlenose dolphins. The population was larger during the summer than during the winter months....
    • Population Analysis & Breeding and Transfer Plan, Grand Cayman Blue Iguana (Cyclura lewisi), AZA Species Survival Plan Yellow Program

      Grant, Tandora D.; Ivy, Jamie A. (Population Management Center. Associaton of Zoos and Aquariums, Lincoln Park Zoo, San Diego Zoo Global, 2020)
    • Population genetic analysis of the recently rediscovered Hula painted frog ( Latonia nigriventer ) reveals high genetic diversity and low inbreeding

      Perl, R. G. Bina; Geffen, Eli; Malka, Yoram; Barocas, Adi; Renan, Sharon; Vences, Miguel; Gafny, Sarig (2018)
      After its recent rediscovery, the Hula painted frog (Latonia nigriventer) has remained one of the world’s rarest and least understood amphibian species. Together with its apparently low dispersal capability and highly disturbed niche, the low abundance of this living fossil calls for urgent conservation measures. We used 18 newly developed microsatellite loci and four different models to calculate the effective population size (Ne) of a total of 125 Hula painted frog individuals sampled at a single location. We compare the Ne estimates to the estimates of potentially reproducing adults in this population (Nad) determined through a capture-recapture study on 118 adult Hula painted frogs captured at the same site. Surprisingly, our data suggests that, despite Nad estimates of only ~234–244 and Ne estimates of ~16.6–35.8, the species appears to maintain a very high genetic diversity (HO = 0.771) and low inbreeding coefficient (FIS = −0.018). This puzzling outcome could perhaps be explained by the hypotheses of either genetic rescue from one or more unknown Hula painted frog populations nearby or by recent admixture of genetically divergent subpopulations. Independent of which scenario is correct, the original locations of these populations still remain to be determined.
    • Portable sequencing as a teaching tool in conservation and biodiversity research

      Watsa, Mrinalini; Erkenswick, Gideon A.; Pomerantz, Aaron; Prost, Stefan (Public Library of Science (PLoS), 2020)
      As biodiversity loss continues to accelerate, there is a critical need for education and biomonitoring across the globe. Portable technologies allow for in situ molecular biodiversity monitoring that has been historically out of reach for many researchers in habitat nations. In the realm of education, portable tools such as DNA sequencers facilitate in situ hands-on training in real-time sequencing and interpretation techniques. Here, we provide step-by-step protocols as a blueprint for a terrestrial conservation genetics field training program that uses low-cost, portable devices to conduct genomics-based training directly in biodiverse habitat countries.
    • Possible evidence for a lack of medicinal efficacy in sun bear bile?

      Davis, Elizabeth Oneita; Gaffi, Lorenzo; Zaw, Thet; Mussoni, Giulia; Glikman, Jenny A. (2020)
      A growing body of evidence has illuminated the ubiquity of bear bile and bear gallbladder use across mainland Southeast Asia (Davis et al. 2016, 2019a,b). In Vietnam, the use of bear bile/gallbladder appears to be comparable to neighboring China, with ubiquitous farms in provinces across the country, the majority of which extract bile from Asiatic black bears (Ursus thibetanus) (Crudge et al. 2020)....
    • Predicting translocation outcomes with personality for desert tortoises

      Germano, Jennifer M.; Nafus, Melia G.; Perry, Jeanette A.; Hall, Derek B.; Swaisgood, Ronald R. (2017)
      As mitigation- and conservation-driven translocations of declining species escalate, establishing best practices for conservation practitioners is critical. A variety of factors, such as individual behaviour, may influence post-release behaviour and survival....
    • Predictors of extreme negative feelings toward coyote in Newfoundland

      Frank, Beatrice; Glikman, Jenny A.; Sutherland, Maggie; Bath, Alistair J. (2016)
      ...he survey explored negative feelings toward coyotes. A four stage hierarchical multiple regression model examined how the dependent variable, “feelings,” was influenced by four independent blocks of variables: “existence beliefs,” “impact beliefs,” “fear,” and “experience and demographic characteristics.”....
    • Preparing the reintroduction

      Maschinski, Joyce; Albrecht, Matthew A.; Font, Jeremie; Monks, Leonie; Haskins, Kristin E.; Center for Plant Conservation (CPC) (Center for Plant ConservationEscondido, California, 2019)
      Careful planning of biological, ecological, political, and financial support for the reintroduction will help ensure success. Designing a reintroduction entails linking genetic source to the recipient site characteristics
    • Pretreatment of Addra gazelle (Nanger dama ruficollis) spermatozoa with cholesterol-loaded cyclodextrins improves cryosurvival

      Wojtusik, Jessye; Pennington, Parker M.; Songsasen, Nucharin; Padilla, Luis R.; Citino, Scott B.; Pukazhenthi, Budhan S. (2016)
      ...Our aim was to characterize Addra gazelle (Nanger dama ruficollis) ejaculate traits and to assess the effects of cholesterol-loaded cyclodextrin (CLC) on sperm cryosurvival. Fresh ejaculates were treated with CLC (0, 0.5, 1.5, 3.0, and 6.0 mg/ml) prior to cryopreservation.... Reported advances will facilitate establishment of a frozen repository and support the genetic management of this critically endangered north African desert antelope.
    • Prevalence of Trypanosoma cruzi and other trypanosomatids in frequently-hunted wild mammals from the Peruvian Amazon

      Morales, E. Angelo; Mayor, Pedro; Bowler, Mark; Aysanoa, Esar; Pérez-Velez, Erika S.; Pérez, Jocelyn; Ventocilla, Julio A.; Baldeviano, G. Christian; Lescano, Andrés G. (2017)
      To better understand the ecology of Trypanosoma cruzi in the northeastern Peruvian Amazon, we evaluated the prevalence of T. cruzi and other trypanosomatids in four orders of wild mammals hunted and consumed by inhabitants of three remote indigenous communities in the Peruvian Amazon. Of 300 wild mammals sampled, 115 (38.3%) were infected with trypanosomatids and 15 (5.0%) with T. cruzi....
    • Progress in the ecology and conservation of giant pandas

      Wei, Fuwen; Swaisgood, Ronald R.; Hu, Yibo; Nie, Yonggang; Yan, Li; Zhang, Zejun; Qi, Dunwu; Zhu, Lifeng (2015)
      Giant panda (Ailuropoda melanoleuca) conservation is a possible success story in the making. If extinction of this iconic endangered species can be avoided, the species will become a showcase program for the Chinese government and its collaborators. We reviewed the major advancements in ecological science for the giant panda, examining how these advancements have contributed to panda conservation….
    • Prosimians

      McAloose, Denise; Stalis, Ilse H.; Terio, Karen A.; McAloose, Denise; St. Leger, Judy (Academic PressSan Diego, CA, 2018)
    • Protected only on paper? Three case studies from protected areas in the Dominican Republic

      Pasachnik, Stesha A.; Carreras De León, R; León, YM (2016)
      ...Herein we evaluate 3 case studies from the Dominican Republic (DR), one of the most biologically diverse countries in the Caribbean. We focus on conflicts between the DR’s national protected areas system and agriculture, tourism, and the charcoal trade....
    • Proximate causes of the red face of the bald uakari monkey (Cacajao calvus)

      Mayor, P.; Mamani, J.; Montes, D.; González-Crespo, C.; Sebastián, M. A.; Bowler, Mark (2015)
      In social species, such as primates, facial appearances transmit a variety of social signals. Although it is suggested that the intense red colour of the face of the bald uakari monkey might be an indicator of health, this hypothesis still has not been verified. This study describes the histological structure of the skin of the face in the bald uakari, compared with other non-red neotropical primates, to better understand the maintenance of its colour. The facial skin of the bald uakari monkey is characterized by a thinner epidermis, absence of melanin pigments and a high density of vascular capillaries that spread below the epidermis. These vascular capillaries are larger and more tortuous than in other neotropical primates. The skin of the face of the bald uakari monkey allows a direct external assessment of haematological status, suggesting that the colour of the face would be an honest indicator of health, but could also signal sexual or behavioural states.
    • Pulmonary hyalinosis in captive sugar gliders (Petaurus breviceps)

      Sokol, Set A.; Agnew, Dalen W.; Lewis, Anne D.; Southard, Teresa L.; Miller, Andrew D. (2017)
      ...Lung lesions resembling pulmonary hyalinosis were observed in 6 captive adult sugar gliders (Petaurus breviceps; 5 females and 1 male) in a retrospective review of 18 autopsied animals. Clinical signs for 3 of the sugar gliders included lethargy, tachypnea, and dyspnea....