Dave Augeri | University of Rhode Island (original) (raw)

Papers by Dave Augeri

Handbook of Research on the Conservation and Restoration of Tropical Dry Forests, Jan 1, 2020

DISTANCE protocols and MIKE Survey Standards were used in the field to determine Critically Endan... more DISTANCE protocols and MIKE Survey Standards were used in the field to determine Critically Endangered (CR) (A2c) Sumatran elephant (Elephas maximus sumatranus) occupancy, density and abundance in Gunung Leuser National Park (GLNP). Forest and habitat type, age, character, and integrity were the most significant factors affecting elephant occupancy. Principal forage types relative to elephant activity were palms and lianas, which dominated significantly in undisturbed primary forest. DISTANCE model density D=0.167 elephants/km-2 (95% CI=0.106-0.262), best-fitting occupancy Ψ=0.6321 (SE±0.0010) and detection probability p=0.6225 (SE±0.0001) estimates combined yielded N=407 elephants (95% CI: 258-638) in GLNP. The most parsimonious occupancy model estimated N=392.82 elephants (SE:±30.65; 95% CI: 332.78-452.95) in GLNP. Forest restoration, ecosystem protections, and conservation plans for Asian elephants, biodiversity, and forests are suggested in this study.

Proceedings of The Royal Society B: Biological Sciences, 1999

Tropical rainforests are the most species-rich terrestrial ecosystems on earth, but these forests... more Tropical rainforests are the most species-rich terrestrial ecosystems on earth, but these forests are rapidly disappearing as land is cleared for timber, agriculture and other uses. Strictly protected areas are never likely to be large enough to conserve all species (Fimbel et al. 2001). Thus, the fate of many species depends upon what happens to forests outside of protected areas.

The Wilson Bulletin, 1997

... (Hawaii). We are indebted to Peter Connors who originally estab-lished the Feather River site... more ... (Hawaii). We are indebted to Peter Connors who originally estab-lished the Feather River site, and generously shared his knowledge of tundra biology in the Nome region. ... 1993. Speciation in golden-plovers, Pluvialis dominica and P. fulva: evidence from the breeding grounds. ...

Raffles Bulletin of Zoology, 2016

The leopard cat Prionailurus bengalensis is one of the smallest cat species found on Borneo and i... more The leopard cat Prionailurus bengalensis is one of the smallest cat species found on Borneo and is the most widely distributed wild cat species in Asia. It is listed on The IUCN Red List of Threatened Species as Least Concern. The leopard cat is known to tolerate habitat disturbance and to occur in a range of vegetation types including primary and secondary forests, plantations and orchards. However, the extent to which the leopard cat can tolerate habitat disturbance and utilise non-forest areas is still unknown. In this paper, we collected 373 leopard cat location records across Borneo; of these, 228 records were obtained between 2001 and 2011. We analysed 63 (Balanced Model) and 102 (Spatial Filtering Model) records to model habitat suitability. The models predicted more than two-thirds of Borneo to be suitable habitat for the leopard cat. Almost the entire area of Sabah, Sarawak, Brunei and East Kalimantan were predicted to be suitable. The south of Central Kalimantan and the ma...

Raffles Bulletin of Zoology, 2016

The Sunda clouded leopard Neofelis diardi is a medium sized (15–25 kg) cat, found only on the Sun... more The Sunda clouded leopard Neofelis diardi is a medium sized (15–25 kg) cat, found only on the Sundaic islands of Borneo and Sumatra. In recent years intensive camera-trapping surveys in Borneo have begun to shed light on the habitat associations and basic ecology of this elusive wild cat, but its distribution on an island-wide scale remains very poorly known. Such information is an essential element in the assessment of the Sunda clouded leopard’s conservation status and in the development of conservation action. In this paper we use MaxEnt niche distribution modelling to make predictions regarding the current distribution of this cat on Borneo. We collected a total of 259 occurrence records for the Sunda clouded leopard, stemming from all Bornean regions apart from Brunei and South Kalimantan, of which 48 (Balanced Model) or 94 (Spatial Filtering Model) were used in our modelling. Our habitat suitability model suggests that this species has a widespread distribution over a large co...

The Sunda clouded leopard Neofelis diardi is a medium sized (15–25 kg) cat, found only on the Sun... more The Sunda clouded leopard Neofelis diardi is a medium sized (15–25 kg) cat, found only on the Sundaic islands of Borneo and Sumatra. In recent years intensive camera-trapping surveys in Borneo have begun to shed light on the habitat associations and basic ecology of this elusive wild cat, but its distribution on an island-wide scale remains very poorly known. Such information is an essential element in the assessment of the Sunda clouded leopard's conservation status and in the development of conservation action. In this paper we use MaxEnt niche distribution modelling to make predictions regarding the current distribution of this cat on Borneo. We collected a total of 259 occurrence records for the Sunda clouded leopard, stemming from all Bornean regions apart from Brunei and South Kalimantan, of which 48 (Balanced Model) or 94 (Spatial Filtering Model) were used in our modelling. Our habitat suitability model suggests that this species has a widespread distribution over a larg...

Raffles Bulletin of Zoology, 2016

The binturong Arctictis binturong is a medium-sized carnivore in the civet family Viverridae with... more The binturong Arctictis binturong is a medium-sized carnivore in the civet family Viverridae with a wide geographic distribution in South-east Asia and adjacent parts of South Asia and China. Habitat loss and hunting have led to its classification as Vulnerable by The IUCN Red List of Threatened Species. The binturong is thought to be forest dependent, although it has been recorded in logged forest and its exact habitat requirements remain unclear. We analysed 47 (Balanced Model) or 83 (Spatial Filtering Model) location records, respectively, to predict habitat suitability across Borneo. The results of the model predict a large area of Borneo to be suitable habitat although the extreme lowlands and much of southern Borneo (South Kalimantan) are predicted to be less suitable or non-sampled, respectively. There is high overlap between protected areas and areas of predicted high suitability. The interior of Borneo, in particular North Kalimantan, is predicted to be highly suitable. A g...

Raffles Bulletin of Zoology, 2016

The masked palm civet Paguma larvata is a small carnivore within the civet family Viverridae, cur... more The masked palm civet Paguma larvata is a small carnivore within the civet family Viverridae, currently listed as Least Concern on The IUCN Red List of Threatened Species. Across its global range the masked palm civet uses a range of habitats in tropical and subtropical regions, from lowlands to highlands, but its exact ecological requirements and the use of modified habitat remains unclear. We analysed 49 (Balanced Model) and 72 (Spatial Filtering Model) location records of the masked palm civet from Borneo to predict habitat suitability. The resulting model predicted the interior and high elevation areas of Borneo to be suitable habitat, while the coastal and other low-lying areas, such as the extensive peat swamp forests in Central Kalimantan, were predicted to be unsuitable. Greater survey effort in South, Central and West Kalimantan and in Brunei is necessary to obtain more records to improve current models and understanding. The species is probably widespread in Borneo and its...

Raffles Bulletin of Zoology, 2016

Short-tailed mongoose Herpestes brachyurus is known to inhabit Borneo, Sumatra and peninsular Mal... more Short-tailed mongoose Herpestes brachyurus is known to inhabit Borneo, Sumatra and peninsular Malaysia. Locality records show that it is widespread and probably common in at least the northern half of Borneo. Records are much sparser south of 2°N. It occurs in forest and, to a poorly clarified extent, non-forest habitats. Eighty-six spatially precise records were used to model its Bornean distribution. This modelling is complicated by several factors: difficulties of field separation from collared mongoose H. semitorquatus (reducing the number of available records); limited interest in, and thus familiarity with, the species (perhaps reducing the reliability of the respondents’ opinions on habitat use); and strong evidence that altitudinal range and perhaps other aspects of habitat use differ between major landmasses (also potentially confounding opinions on habitat use). Within Borneo it is important to (1) clarify the extent of the specie’s use of degraded and non-forest habitats,...

Handbook of Research on the Conservation and Restoration of Tropical Dry Forests, Jan 1, 2020

DISTANCE protocols and MIKE Survey Standards were used in the field to determine Critically Endan... more DISTANCE protocols and MIKE Survey Standards were used in the field to determine Critically Endangered (CR) (A2c) Sumatran elephant (Elephas maximus sumatranus) occupancy, density and abundance in Gunung Leuser National Park (GLNP). Forest and habitat type, age, character, and integrity were the most significant factors affecting elephant occupancy. Principal forage types relative to elephant activity were palms and lianas, which dominated significantly in undisturbed primary forest. DISTANCE model density D=0.167 elephants/km-2 (95% CI=0.106-0.262), best-fitting occupancy Ψ=0.6321 (SE±0.0010) and detection probability p=0.6225 (SE±0.0001) estimates combined yielded N=407 elephants (95% CI: 258-638) in GLNP. The most parsimonious occupancy model estimated N=392.82 elephants (SE:±30.65; 95% CI: 332.78-452.95) in GLNP. Forest restoration, ecosystem protections, and conservation plans for Asian elephants, biodiversity, and forests are suggested in this study.

Proceedings of The Royal Society B: Biological Sciences, 1999

Tropical rainforests are the most species-rich terrestrial ecosystems on earth, but these forests... more Tropical rainforests are the most species-rich terrestrial ecosystems on earth, but these forests are rapidly disappearing as land is cleared for timber, agriculture and other uses. Strictly protected areas are never likely to be large enough to conserve all species (Fimbel et al. 2001). Thus, the fate of many species depends upon what happens to forests outside of protected areas.

The Wilson Bulletin, 1997

... (Hawaii). We are indebted to Peter Connors who originally estab-lished the Feather River site... more ... (Hawaii). We are indebted to Peter Connors who originally estab-lished the Feather River site, and generously shared his knowledge of tundra biology in the Nome region. ... 1993. Speciation in golden-plovers, Pluvialis dominica and P. fulva: evidence from the breeding grounds. ...

Raffles Bulletin of Zoology, 2016

The leopard cat Prionailurus bengalensis is one of the smallest cat species found on Borneo and i... more The leopard cat Prionailurus bengalensis is one of the smallest cat species found on Borneo and is the most widely distributed wild cat species in Asia. It is listed on The IUCN Red List of Threatened Species as Least Concern. The leopard cat is known to tolerate habitat disturbance and to occur in a range of vegetation types including primary and secondary forests, plantations and orchards. However, the extent to which the leopard cat can tolerate habitat disturbance and utilise non-forest areas is still unknown. In this paper, we collected 373 leopard cat location records across Borneo; of these, 228 records were obtained between 2001 and 2011. We analysed 63 (Balanced Model) and 102 (Spatial Filtering Model) records to model habitat suitability. The models predicted more than two-thirds of Borneo to be suitable habitat for the leopard cat. Almost the entire area of Sabah, Sarawak, Brunei and East Kalimantan were predicted to be suitable. The south of Central Kalimantan and the ma...

Raffles Bulletin of Zoology, 2016

The Sunda clouded leopard Neofelis diardi is a medium sized (15–25 kg) cat, found only on the Sun... more The Sunda clouded leopard Neofelis diardi is a medium sized (15–25 kg) cat, found only on the Sundaic islands of Borneo and Sumatra. In recent years intensive camera-trapping surveys in Borneo have begun to shed light on the habitat associations and basic ecology of this elusive wild cat, but its distribution on an island-wide scale remains very poorly known. Such information is an essential element in the assessment of the Sunda clouded leopard’s conservation status and in the development of conservation action. In this paper we use MaxEnt niche distribution modelling to make predictions regarding the current distribution of this cat on Borneo. We collected a total of 259 occurrence records for the Sunda clouded leopard, stemming from all Bornean regions apart from Brunei and South Kalimantan, of which 48 (Balanced Model) or 94 (Spatial Filtering Model) were used in our modelling. Our habitat suitability model suggests that this species has a widespread distribution over a large co...

The Sunda clouded leopard Neofelis diardi is a medium sized (15–25 kg) cat, found only on the Sun... more The Sunda clouded leopard Neofelis diardi is a medium sized (15–25 kg) cat, found only on the Sundaic islands of Borneo and Sumatra. In recent years intensive camera-trapping surveys in Borneo have begun to shed light on the habitat associations and basic ecology of this elusive wild cat, but its distribution on an island-wide scale remains very poorly known. Such information is an essential element in the assessment of the Sunda clouded leopard's conservation status and in the development of conservation action. In this paper we use MaxEnt niche distribution modelling to make predictions regarding the current distribution of this cat on Borneo. We collected a total of 259 occurrence records for the Sunda clouded leopard, stemming from all Bornean regions apart from Brunei and South Kalimantan, of which 48 (Balanced Model) or 94 (Spatial Filtering Model) were used in our modelling. Our habitat suitability model suggests that this species has a widespread distribution over a larg...

Raffles Bulletin of Zoology, 2016

The binturong Arctictis binturong is a medium-sized carnivore in the civet family Viverridae with... more The binturong Arctictis binturong is a medium-sized carnivore in the civet family Viverridae with a wide geographic distribution in South-east Asia and adjacent parts of South Asia and China. Habitat loss and hunting have led to its classification as Vulnerable by The IUCN Red List of Threatened Species. The binturong is thought to be forest dependent, although it has been recorded in logged forest and its exact habitat requirements remain unclear. We analysed 47 (Balanced Model) or 83 (Spatial Filtering Model) location records, respectively, to predict habitat suitability across Borneo. The results of the model predict a large area of Borneo to be suitable habitat although the extreme lowlands and much of southern Borneo (South Kalimantan) are predicted to be less suitable or non-sampled, respectively. There is high overlap between protected areas and areas of predicted high suitability. The interior of Borneo, in particular North Kalimantan, is predicted to be highly suitable. A g...

Raffles Bulletin of Zoology, 2016

The masked palm civet Paguma larvata is a small carnivore within the civet family Viverridae, cur... more The masked palm civet Paguma larvata is a small carnivore within the civet family Viverridae, currently listed as Least Concern on The IUCN Red List of Threatened Species. Across its global range the masked palm civet uses a range of habitats in tropical and subtropical regions, from lowlands to highlands, but its exact ecological requirements and the use of modified habitat remains unclear. We analysed 49 (Balanced Model) and 72 (Spatial Filtering Model) location records of the masked palm civet from Borneo to predict habitat suitability. The resulting model predicted the interior and high elevation areas of Borneo to be suitable habitat, while the coastal and other low-lying areas, such as the extensive peat swamp forests in Central Kalimantan, were predicted to be unsuitable. Greater survey effort in South, Central and West Kalimantan and in Brunei is necessary to obtain more records to improve current models and understanding. The species is probably widespread in Borneo and its...

Raffles Bulletin of Zoology, 2016

Short-tailed mongoose Herpestes brachyurus is known to inhabit Borneo, Sumatra and peninsular Mal... more Short-tailed mongoose Herpestes brachyurus is known to inhabit Borneo, Sumatra and peninsular Malaysia. Locality records show that it is widespread and probably common in at least the northern half of Borneo. Records are much sparser south of 2°N. It occurs in forest and, to a poorly clarified extent, non-forest habitats. Eighty-six spatially precise records were used to model its Bornean distribution. This modelling is complicated by several factors: difficulties of field separation from collared mongoose H. semitorquatus (reducing the number of available records); limited interest in, and thus familiarity with, the species (perhaps reducing the reliability of the respondents’ opinions on habitat use); and strong evidence that altitudinal range and perhaps other aspects of habitat use differ between major landmasses (also potentially confounding opinions on habitat use). Within Borneo it is important to (1) clarify the extent of the specie’s use of degraded and non-forest habitats,...