M Waltert
Biographic Data
| ID | 1947529 |
|---|---|
| NAME | M Waltert |
| GIVEN NAMES | M |
| FAMILY NAME | Waltert |
| SIGNATURE | WALTERT M |
| AFFILIATIONS | University of Göttingen |
| ORCID | 0000-0001-7053-0291 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 2 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2008 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 1 |
An overlooked hotspot
The Gulf of Guinea rainforests, renowned for exceptional primate endemism, are increasingly fragmented and face severe hunting-induced defaunation. However, the long-term persistence of primate assemblages in these hunted forests remains understudied. The unprotected Ebo–Ndokbou–Makombe landscape, designated the Yabassi Key Biodiversity Area (YKBA), represents one of the region’s largest remaining forest tracts, yet its primate community is large…
Range‐wide indicators of African great ape density distribution
Species distributions are influenced by processes occurring at multiple spatial scales. It is therefore insufficient to model species distribution at a single geographic scale, as this does not provide the necessary understanding of determining factors. Instead, multiple approaches are needed, each differing in spatial extent, grain, and research objective. Here, we present the first attempt to model continent‐wide great ape density distribution.…
A framework of most effective practices in protecting human assets from predators
Widespread damage by large mammalian predators to human assets (e.g., livestock, crops, neighborhood safety) requires the application of non-invasive (i.e., without direct contact with predators) and targeted interventions to promote predator conservation and local livelihoods. We compiled 117 cases from 23 countries describing the effectiveness of 12 interventions designed to protect human assets from 21 predators. We found: (a) the most effecti…
Interactive Simulations with a Stylized Scale Model to Codesign with Villagers an Agent-Based Model of Bushmeat Hunting in the Periphery of Korup National Park (Cameroon)
An agent-based model (ABM) representing snare trapping of blue duikers (Cephalophus monticola) was co-designed and used with local populations to raise their awareness about the sustainability of bushmeat hunting activities in the region of the Korup National Park (South-West Cameroon). Village meetings based on interactive simulations with a stylized scale model were structured in three successive steps. During the first step, an abstract repres…
Forest type affects prey foraging of saddleback tamarins, Saguinus nigrifrons
Callitrichids can persist in secondary forests where they may benefit from elevated prey abundance. However, how tamarins forage for prey in secondary forest compared to primary forest has not been examined. Using scan and focal sampling, we compared prey foraging and capture success of two groups of Saguinus nigrifrons in north-eastern Peru: one ranging in primary forest, the other with access to a 10-year-old anthropogenic secondary forest. The…
Line Transect and Triangulation Surveys Provide Reliable Estimates of the Density of Kloss’ Gibbons (Hylobates klossii) on Siberut Island, Indonesia
Estimating population densities of key species is crucial for many conservation programs. Density estimates provide baseline data and enable monitoring of population size. Several different survey methods are available, and the choice of method depends on the species and study aims. Few studies have compared the accuracy and efficiency of different survey methods for large mammals, particularly for primates. Here we compare estimates of density a…
Habitat Use and Trophic Niche Overlap of Two Sympatric Colobines, Presbytis potenziani and Simias concolor, on Siberut Island, Indonesia
Bush Meat Harvesting and Human Subsistence Nexus in the Oban Hill Communities of Nigeria
Wildlife is an important socio-cultural and economic resource in West and Central Africa. The declining wildlife population in the recent time is as a result of a combination of factors, namely, increased access and demand for wildlife resources by rural and urban dwellers, population growth, improved hunting technology and lack of protein alternatives in many households.. This paper investigates the contribution of bush meat extraction to househ…
Associations between the drill ( Mandrillus leucophaeus ) and sympatric monkeys in Korup National Park, Cameroon
Studies of polyspecific associations among African forest primates have primarily focused on arboreal Cercopithecus and Procolobus/Colobus species. We examined the association frequency of the terrestrial drill ( Mandrillus leucophaeus ) with six sympatric monkey species in Korup National Park, Cameroon, testing reports that Mandrillus associations are infrequent and transient. We conducted 3,284 km of trail walks for 12 months (February–June 200…
Note on drill ( Mandrillus leucophaeus ) ecology and conservation status in Korup National Park, Southwest Cameroon
We report preliminary findings on drill population ecology, feeding ecology, primate associations and conservation status in Korup National Park, Cameroon, based on analysis of data collected during 1,346 km (620 field hours) of trail patrols from February to June 2006. We encountered drills on 25 occasions and collected 304 fecal samples. Group size was estimated on four occasions (≥25, ≥40, ≥67, ≥77), and multiple males were heard emitting the …
Line Transect and Triangulation Surveys Provide Reliable Estimates of the Density of Kloss’ Gibbons (Hylobates klossii) on Siberut Island, Indonesia
Estimating population densities of key species is crucial for many conservation programs. Density estimates provide baseline data and enable monitoring of population size. Several different survey methods are available, and the choice of method depends on the species and study aims. Few studies have compared the accuracy and efficiency of different survey methods for large mammals, particularly for primates. Here we compare estimates of density a…
Note on drill ( Mandrillus leucophaeus ) ecology and conservation status in Korup National Park, Southwest Cameroon
We report preliminary findings on drill population ecology, feeding ecology, primate associations and conservation status in Korup National Park, Cameroon, based on analysis of data collected during 1,346 km (620 field hours) of trail patrols from February to June 2006. We encountered drills on 25 occasions and collected 304 fecal samples. Group size was estimated on four occasions (≥25, ≥40, ≥67, ≥77), and multiple males were heard emitting the …
Associations between the drill ( Mandrillus leucophaeus ) and sympatric monkeys in Korup National Park, Cameroon
Studies of polyspecific associations among African forest primates have primarily focused on arboreal Cercopithecus and Procolobus/Colobus species. We examined the association frequency of the terrestrial drill ( Mandrillus leucophaeus ) with six sympatric monkey species in Korup National Park, Cameroon, testing reports that Mandrillus associations are infrequent and transient. We conducted 3,284 km of trail walks for 12 months (February–June 200…
Habitat Use and Trophic Niche Overlap of Two Sympatric Colobines, Presbytis potenziani and Simias concolor, on Siberut Island, Indonesia
Bush Meat Harvesting and Human Subsistence Nexus in the Oban Hill Communities of Nigeria
Wildlife is an important socio-cultural and economic resource in West and Central Africa. The declining wildlife population in the recent time is as a result of a combination of factors, namely, increased access and demand for wildlife resources by rural and urban dwellers, population growth, improved hunting technology and lack of protein alternatives in many households.. This paper investigates the contribution of bush meat extraction to househ…
Line Transect and Triangulation Surveys Provide Reliable Estimates of the Density of Kloss’ Gibbons (Hylobates klossii) on Siberut Island, Indonesia
Estimating population densities of key species is crucial for many conservation programs. Density estimates provide baseline data and enable monitoring of population size. Several different survey methods are available, and the choice of method depends on the species and study aims. Few studies have compared the accuracy and efficiency of different survey methods for large mammals, particularly for primates. Here we compare estimates of density a…
Forest type affects prey foraging of saddleback tamarins, Saguinus nigrifrons
Callitrichids can persist in secondary forests where they may benefit from elevated prey abundance. However, how tamarins forage for prey in secondary forest compared to primary forest has not been examined. Using scan and focal sampling, we compared prey foraging and capture success of two groups of Saguinus nigrifrons in north-eastern Peru: one ranging in primary forest, the other with access to a 10-year-old anthropogenic secondary forest. The…
Interactive Simulations with a Stylized Scale Model to Codesign with Villagers an Agent-Based Model of Bushmeat Hunting in the Periphery of Korup National Park (Cameroon)
An agent-based model (ABM) representing snare trapping of blue duikers (Cephalophus monticola) was co-designed and used with local populations to raise their awareness about the sustainability of bushmeat hunting activities in the region of the Korup National Park (South-West Cameroon). Village meetings based on interactive simulations with a stylized scale model were structured in three successive steps. During the first step, an abstract repres…
A framework of most effective practices in protecting human assets from predators
Widespread damage by large mammalian predators to human assets (e.g., livestock, crops, neighborhood safety) requires the application of non-invasive (i.e., without direct contact with predators) and targeted interventions to promote predator conservation and local livelihoods. We compiled 117 cases from 23 countries describing the effectiveness of 12 interventions designed to protect human assets from 21 predators. We found: (a) the most effecti…
Range‐wide indicators of African great ape density distribution
Species distributions are influenced by processes occurring at multiple spatial scales. It is therefore insufficient to model species distribution at a single geographic scale, as this does not provide the necessary understanding of determining factors. Instead, multiple approaches are needed, each differing in spatial extent, grain, and research objective. Here, we present the first attempt to model continent‐wide great ape density distribution.…
An overlooked hotspot
The Gulf of Guinea rainforests, renowned for exceptional primate endemism, are increasingly fragmented and face severe hunting-induced defaunation. However, the long-term persistence of primate assemblages in these hunted forests remains understudied. The unprotected Ebo–Ndokbou–Makombe landscape, designated the Yabassi Key Biodiversity Area (YKBA), represents one of the region’s largest remaining forest tracts, yet its primate community is large…
Biology (9 works) · Wildlife Ecology and Conservation (9 works) · Ecology (8 works) · Geography (8 works) · Primate Behavior and Ecology (7 works) · Animal ecology (4 works) · Population (4 works) · Archaeology (3 works) · Bat Biology and Ecology Studies (3 works) · Demography (3 works)