The correct name of the South-central black rhinoceros is<i>Diceros bicornis keitloa</i>(A.Smith, 1836)

Rookmaaker, Kees

doi:10.1080/15627020.2016.1194229

Cited by 2 publications

(3 citation statements)

References 6 publications

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Section: Introductionmentioning

confidence: 99%

“…Understanding historical distributions of species informs fundamental aspects of biology and ecology, including habitat requirements and response to threats (Rookmaaker 2004;Peacock and Abbott 2014;Rutrough et al 2019). This knowledge can underpin conservation of surviving populations, through defining realistic recovery objectives and facilitating targeted management of key threats (Sovada et al 2009;Zhang et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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Historical record shows broad habitat use and rapid decline of the greater bilby Macrotis lagotis in eastern Australia

Silcock

McRae²,

Laidlaw³

et al. 2023

Wildlife Res.

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Context. Understanding historical distributions of species informs their ecology and response to threats, which can support management of surviving and translocated populations. Like many critical weight-range mammals in Australia, the greater bilby (Macrotis lagotis) has experienced major declines since European colonisation. The past distribution of bilbies in eastern Australia remains uncertain owing to the rapidity of their decline, their cryptic and nocturnal nature, and the paucity of specimen records. Aims. We aimed to systematically collate, geo-reference and attribute bilby records from eastern Australia to better inform their historical distribution, habitat preferences, patterns of decline and response to threats. Methods. We searched explorer and early settler journals, the digitised newspaper archive, interviews with long-term residents, Aboriginal language resources and ethnographies, place and property names, unpublished datasets, and documented locations of now-inactive bilby burrows. Records were geo-referenced and attributed with date, record type, source, location precision, bioregion, habitat and local abundance. The former distribution of bilby habitat in Queensland was modelled using Maxent, and the likely former occupancy of bilbies was identified using vegetation mapping. Key results. More than 250 bilby records were found, only 34 of which appear in the Atlas of Living Australia. Sixty-five per cent of the records were attributed either 'certain' or 'good' reliability. Bilbies formerly occurred over most of inland New South Wales and the southern half of Queensland in areas receiving <600 mm average annual rainfall, in a wide variety of habitats. By the 1930s, bilbies were largely restricted to their current core range in south-western Queensland. This contraction in range coincided with the northward spread of rabbits and foxes. Conclusions. Bilbies had a more contiguous distribution and occupied a wider range of habitats than was previously recognised. The species persisted in apparently isolated patches to the south-east, west and north of its present distribution until the 1970s, suggesting recent declines around the peripheries of its current range. By the 1990s, bilbies occupied <3% of their pre-1900 range in eastern Australia. Implications. This work details changes in bilby distribution and provides key context for interpreting contemporary survey results. It also identifies areas where further surveys are required and may assist in selecting habitat for future translocations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Historical record shows broad habitat use and rapid decline of the greater bilby Macrotis lagotis in eastern Australia

Silcock

McRae²,

Laidlaw³

et al. 2023

Wildlife Res.

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“…Furthermore, GIS makes it simple to generate prediction models of rhino distribution and density within a conservation area, establishment of black rhino activity pattern, home range and habitat usage, which in turn can be useful for security and monitoring purposes (Rookmaaker, 2004).…”

Section: Management Of Rhinos By Using a Geographical Information Sys...mentioning

confidence: 99%

Seasonal variation in forage availability and nutritional composition of the black rhino (diceros bicornis michaeli) diet in Mkomazi National Park, Tanzania

Sisya

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A study was conducted on rhino forage availability and diet to gather vital information for the sustainable conservation of critically endangered black rhino populations. Specifically, the study was set to establish the quantity and quality of natural forages browsed by rhinos in Mkomazi National Park (MKONAPA) as affected by seasonality. This study was prompted by the observed decline in body condition during dry periods, highlighting the need for a better understanding of forage quantity and quality in the area. The current study aimed to investigate seasonal variations in the black rhino diet at MKONAPA by comparing foraging, browsing intensity, forage preference and nutritional composition of the most preferred forage between wet and dry seasons. A simple-random sampling technique was deployed to select 58 square grids in the wet and dry seasons (replication), and plots were laid for vegetation assessment and plant sample collection in the Mkomazi rhino sanctuary (MRS). Browses foraged by rhinos were compared with rhino feeding data from fourteen rhino-range areas within Africa savannah. Results showed that more than 85% of species edible in MKONAPA were similar to those in rhino range areas. The diversity of consumed browses was higher (t = 4.58, p<0.001) in wet season than in dry season. Forage browsing intensity by rhinos correlated positively with forage preference and was significantly high (w= 482, p<0.001) in dry season when browse availability was low. Forage nutrient composition was within the average level reported in browses consumed by free-ranging rhinos within Africa savannah, but the crude fat (3.07 ± 1.04%) and crude protein (9.33 ± 1.45%) were marginally low in dry season, while zinc was low in both seasons. This study established seasonal variation in dietary composition, browsing intensity and nutritional composition. This study suggests establishing a monitoring program of preferred and highly nutritional forages for rhino diet during the dry season, assessing the density of competitor browsers, supplementing rhinos with lucerne diet during prolonged dry seasons and mineral (zinc) licks to improve rhino body condition status and health in the sanctuary.

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The correct name of the South-central black rhinoceros isDiceros bicornis keitloa(A.Smith, 1836)

Cited by 2 publications

References 6 publications

Historical record shows broad habitat use and rapid decline of the greater bilby Macrotis lagotis in eastern Australia

Historical record shows broad habitat use and rapid decline of the greater bilby Macrotis lagotis in eastern Australia

Seasonal variation in forage availability and nutritional composition of the black rhino (diceros bicornis michaeli) diet in Mkomazi National Park, Tanzania

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