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Increasing AZA-Accredited Zoo and Aquarium Engagement in Conservation

Conservation should be the higher purpose of any modern zoological facility and has consistently been a required element of accreditation by the Association of Zoos and Aquariums (AZA). Each year, AZA-accredited zoos and aquariums collectively commit considerable resources to conservation around the world, exceeding 150 million USD annually since 2011 and exceeding 231 million USD in 2019. Furthermore, with 195 million people visiting AZA-accredited zoos and aquariums each year, there is an enormous opportunity to connect people to nature and

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Animal Detection for Road safety using Deep Learning

The recognition of big animals on the images with road scenes has received little attention in modern research. There are very few specialized data sets for this task. Popular open data sets contain many images of big animals, but the most part of them is not correspond to road scenes that is necessary for on-board vision systems of unmanned vehicles. The paper describes the preparation of such a specialized data set based on Google Open Images and COCO datasets. The

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Seismic savanna: machine learning for classifying wildlife and behaviours using ground-based vibration field recordings

We develop a machine learning approach to detect and discriminate elephants from other species, and to recognise important behaviours such as running and rumbling, based only on seismic data generated by the animals. We demonstrate our approach using data acquired in the Kenyan savanna, consisting of 8000 h seismic recordings and 250 k camera trap pictures. Our classifiers, different convolutional neural networks trained on seismograms and spectrograms, achieved 80%–90% balanced accuracy in detecting elephants up to 100 m away, and

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Blood Parameters In Wild Ruminants In Kenya

Blood specimens from shot or drug-immobilized impala (Aepyceros melampus), Thomson’s gazelle (Gazella thomsonii), Grant’s gazelle (Gazella granti), mountain reedbuck (Redunca fulvorupula), blue wildebeest (Connochaetes taurinus), Coke’s hartebeest (Alcelaphus buselaphus cokii), topi (Damaliscus korrigum), eland (Taurotragus oryx), buffalo (Syncerus caffer) and giraffe (Giraffa camelopardalis) have been studied for the following parameters: erythrocyte and leukocyte counts, haematocrit and haemoglobin estimations, and serum calcium, inorganic phosphorus, magnesium and copper values. Both shot and drug-immobilized impala and shot wildebeest and topi had relatively high

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Demonstration Of A Carrier State For Cowdria Ruminantium In Wild Ruminants From Africa

Four wild African ruminants, eland (Taurotragus oryx), giraffe (Giraffa camelopardalis), kudu (Tragephalus strepsiceros strepsiceros), and blue wildebeest (Connochaetes taurinus), were experimentally infected with the rickettsia Cowdria ruminantium, the tickborne agent causing heartwater in domestic ruminants. The infections were established, and C. ruminantium was transmitted to naive small ruminants by the vector Amblyomma hebraeum when transmission attempts were made at days 128 (eland and wildebeest), 85 (giraffe), and 24 (kudu) post infection. These wild ruminants, which are natural hosts for the tick vector, and which commonly

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Anaplasma Infections In Wild And Domestic Ruminants: A Review

Anaplasma marginale can be transmitted, will grow and can survive in a large number of domestic and wild animals. It is pathogenic in cattle, and usually produces nonapparent or mild infections in other species. Anaplasma marginale has been recovered from cattle, sheep, goats, water buffalo (Bubalus bubalis), white-tailed deer (Odocoileus virginianus), mule deer (Odocoileus hemionus hemionus), black-tailed deer (Odocoileus hemionus columbianus), pronghorn (Antilocapra americana americana), Rocky Mountain elk (Cervus elaphus nelsoni), bighorn sheep (Ovis canadensis canadensis), black wildebeest (Connochaetes gnu),

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Les dernières girafes d’Afrique de l’Ouest : sauvegarde assurée ou avenir menacé ?

The last West African giraffes: insured survival or threatened future? — The present paper describes the current situation of the giraffes of Niger. While the giraffe population there has increased from an estimated 49 in 1996 to more than 200 today, they remain extremely vulnerable. As a matter of fact, the abandonment of the local development initiative, begun in 1996, had adversely affected the area inhabited by giraffes from both an ecological and social point of view. This is because

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Jugular venous pooling during lowering of the head affects blood pressure of the anesthetized giraffe

How blood flow and pressure to the giraffe’s brain are regulated when drinking remains debated. We measured simultaneous blood flow, pressure, and cross-sectional area in the carotid artery and jugular vein of five anesthetized and spontaneously breathing giraffes. The giraffes were suspended in the upright position so that we could lower the head. In the upright position, mean arterial pressure (MAP) was 193 ± 11 mmHg (mean ± SE), carotid flow was 0.7 ± 0.2 l/min, and carotid cross-sectional area

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Vigilance Behavior And Population Density Of Common Large Herbivores In A Southern African Savanna

The study assessed flight behavioural responses of impala (Aepyceros melampus) and kudu (Tragelaphus strepsiceros) to human disturbance and compared densities of common large herbivores across Gonarezhou National Park (nonconsumptive land use) and the adjacent Malipati Safari Area (consumptive land use) in southeast Zimbabwe. Animal vigilance was measured by flight behaviour and compared in terms of area and group size. Distance sampling method was used to collect data on densities of large herbivores including namely; impala, kudu, zebra (Equus quagga), giraffe

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Bringing Angolan giraffe back to Angola – is it feasible in Iona National Park, Angola?

Understanding whether giraffe will survive in Iona NP might seem obvious, considering that the area is likely part of their former natural range. However, research on re-introductions suggests that historical occurrence, or a superficial look at the introduction site, is not enough to ensure success. Feasibility studies provide essential information on the current state of the habitat and other social, economic, and ecological factors. A feasibility study is especially important when a long time has elapsed since the extinction of

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