Emanuel H. Martin

Emanuel H. Martin
The College of African Wildlife Management | CAWM · Wildlife Management

About

68
Publications
30,033
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847
Citations
Citations since 2016
67 Research Items
844 Citations
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2016201720182019202020212022050100150200250
2016201720182019202020212022050100150200250
2016201720182019202020212022050100150200250

Publications

Publications (68)
Article
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An animal’s daily use of time (their “diel activity”) reflects their adaptations, requirements, and interactions, yet we know little about the underlying processes governing diel activity within and among communities. Here we examine whether community-level activity patterns differ among biogeographic regions, and explore the roles of top-down vers...
Article
Studies of animal attacks on humans in Tanzania have been biased towards large mammals, such as elephants, lions, and hyenas, overlooking attacks from other taxa, including reptiles. Here, we used data from government institutions to explore patterns of attacks on humans by crocodiles in Tanzania between 2010 and 2019. We obtained a total of 575 cr...
Cover Page
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The regular issue 6(4) of the journal “Nature Conservation Research” (http://ncr-journal.bear-land.org/) has been released today. It is stored here: http://ncr-journal.bear-land.org/journal/42. The cover shows calve of Procarpa gutturosa Pallas, 1777 (Bovidae) in the buffer zone of the Daursky State Nature Reserve, Russia (Author: Dr. Galina S. Ale...
Cover Page
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The regular issue 7(3) of the journal “Nature Conservation Research” (http://ncr-journal.bear-land.org/) has been released. It is stored here: http://ncr-journal.bear-land.org/journal/41. The cover shows Orchis canariensis (Orchidaceae) from la Caldera de los Marteles, Gran Canaria, Canary Islands, Spain (Author: Dr. Jacopo Calevo). This issue of t...
Article
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The structure of forest mammal communities appears surprisingly consistent across the continental tropics, presumably due to convergent evolution in similar environments. Whether such consistency extends to mammal occupancy, despite variation in species characteristics and context, remains unclear. Here we ask whether we can predict occupancy patte...
Cover Page
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The regular issue 7(2) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released. It is stored here: http://ncr-journal.bear-land.org/journal/40. The cover shows staminate flowers of Baccharis macrophylla (Asteraceae) from the high altitude grasslands in the Itatiaia National Park, Rio de Janeiro, Southeast...
Cover Page
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The special issue 7(Suppl.1) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released: http://ncr-journal.bear-land.org/journal/39. This issue is entitled “Biodiversity Informatics for Protected Areas” by containing papers based on biodiversity data management methods and (or) methods for consolidated data...
Cover Page
Full-text available
The regular issue 7(1) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released. It is stored here: http://ncr-journal.bear-land.org/journal/38. The cover shows the male Urothemis edwardsii (Selys, 1849) in the National Park of El Kala, Algeria (Author: Dr. Rassim Khelifa). This issue of the journal "Natur...
Cover Page
Full-text available
The regular issue 6(4) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released. It is stored here: http://ncr-journal.bear-land.org/journal/37. The cover shows the female wolf (Canis lupus Linnaeus, 1758) in the buffer zone of the Daursky State Nature Biosphere Reserve, Russia (Author: Sergey Vysotin). Th...
Article
Full-text available
Mountain environments and communities are disproportionately impacted by climate change. Changes in temperature are greater than at lower elevations, which affect the height of the cloud base and local rainfall patterns. While our knowledge of the biophysical nature of climate change in East Africa has increased in the past few years, research on I...
Article
Full-text available
Tropical forests store 40-50% of terrestrial vegetation carbon. Spatial variations in aboveground live tree biomass carbon (AGC) stocks remain poorly understood, in particular in tropical montane forests. Because of climatic and soil changes with increasing elevation, AGC stocks are lower in tropical montane compared to lowland forests. Here we ass...
Article
Full-text available
Tropical forests store 40–50 per cent of terrestrial vegetation carbon1. However, spatial variations in aboveground live tree biomass carbon (AGC) stocks remain poorly understood, in particular in tropical montane forests2. Owing to climatic and soil changes with increasing elevation3, AGC stocks are lower in tropical montane forests compared with...
Cover Page
Full-text available
The regular issue 6(3) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released. It is stored here: http://ncr-journal.bear-land.org/journal/36. The cover shows two male Blood pheasants (Ithaginis cruentus Hardwicke, 1821) on the alpine rocky-cliffs of Khangchendzonga Biosphere Reserve (India) (Authors: Bi...
Cover Page
Full-text available
The regular issue 6(2) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released. It is stored here: http://ncr-journal.bear-land.org/journal/35. The cover shows cubs of brown bear (Ursus arctos Linnaeus, 1867) feeding by sockeye salmon, South Kamchatka (Photo: PhD Sergey A. Kolchin). This issue of the jour...
Cover Page
Full-text available
The special issue 6(Suppl.1) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released: http://ncr-journal.bear-land.org/journal/33. This issue is entitled "Protected Areas in the Green Belt of Fennoscandia" being devoted to the anniversary of the Kostomuksha State Nature Reserve. The cover shows the wild r...
Cover Page
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The regular issue 6(1) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released today. It is stored here: http://ncr-journal.bear-land.org/journal/34. The cover shows Pelias kaznakovi (Nikolsky, 1909) in Sochi National Park (Russia) (Photo: Dr.Sc. Boris S. Tuniyev). This issue of the journal "Nature Conser...
Chapter
This proposal was funded by the United States Agency for International Development (USAID) in 2019 via USAID’s Protect Tanzania project (Promoting Tanzania’s Environment, Conservation, and Tourism.
Cover Page
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This issue of the journal "Nature Conservation Research" contains articles devoted to varous taxonomic groups of plants and animals in Europe, Asia and Africa. It includes research articles devoted to study vascular plants, inveterbrates, mammals, and phenological observations of nature. Some insect groups (Diptera, Hymenoptera) were studied in Pro...
Article
Full-text available
Conservationists need detailed information on human population growth and distribution in areas adjacent to protected areas. This information can help determine land use/land cover changes (LULCC), which affect the quality and quantity of elephant habitat and, thus, elephant populations. We assessed the influence of human population trends on demog...
Cover Page
Full-text available
The special issue 5(Suppl.2) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released: http://ncr-journal.bear-land.org/journal/31. This issue is entitled "PARASITOLOGICAL STUDIES IN PROTECTED AREAS". The cover shows the brook Da Brout in the Cat Tien National Park, Vietnam (Photo: Irina I. Semenyuk, Russi...
Cover Page
Full-text available
The special issue 5(Suppl.1) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released: http://ncr-journal.bear-land.org/journal/30. This issue is entitled as "ORCHID CONSERVATION". The cover shows Calypso bulbosa L. in spruce-pine forest with a dominant green moss layer (Leningrad region, Russia) (Photo: D...
Chapter
Full-text available
Transect lines were laid down in Mkomazi National Park for the wild animals ground count exercise. This technique is applied as a ground truth of population density of animals. Forty transects were set to represent all major habitats, including grasslands, woodlands, forests, shrub land, scrubland, and riverine. Program DISTANCE was employed for da...
Chapter
The Kwakuchinja Wildlife Corridor in northern Tanzania connects Lake Manyara National Park with Tarangire National Park. In 2005, an existing road was paved and raised to improve the connection between the towns of Arusha and Babati. However, the road’s improvement may impact animal movement between the two national parks by providing a physical ob...
Chapter
Transect lines were laid down in Mkomazi National Park for the wild animals ground count exercise. This technique is applied as a ground truth of population density of animals. Forty transects were set to represent all major habitats, including grasslands, woodlands, forests, shrub land, scrubland, and riverine. Program DISTANCE was employed for da...
Chapter
Mkomazi National Park in north eastern Tanzania was gazetted to a national park in 2008 by upgrading the Mkomazi-Umba Game Reserves. It is possible that national park policy, management, and additional park visitors may change the vegetation within the park. This study examines vegetation changes in Mkomazi National Park using MODIS yearly land cov...
Article
Full-text available
Structurally intact tropical forests sequestered about half of the global terrestrial carbon uptake over the 1990s and early 2000s, removing about 15 per cent of anthropogenic carbon dioxide emissions. Climate-driven vegetation models typically predict that this tropical forest ‘carbon sink’ will continue for decades. Here we assess trends in the c...
Book
Northern Tanzania is an important and diverse ecological and cultural region with many protected lands. This book, Protected Areas in Northern Tanzania, brings to the forefront research on significant issues and developments in conservation and management in national parks and protected lands in northern Tanzania. The book draws attention to issues...
Cover Page
Full-text available
The regular issue 4(4) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released today. It is stored here: http://ncr-journal.bear-land.org/journal/17. The cover shows Ursus arctos in the Central Forest State Nature Biosphere Reserve (Russia) (photo taken by a camera trap; provided by Sergey S. Ogurtsov). T...
Article
Full-text available
The understanding of global diversity patterns has benefitted from a focus on functional traits and how they relate to variation in environmental conditions among assemblages. Distant communities in similar environments often share characteristics, and for tropical forest mammals, this functional trait convergence has been demonstrated at coarse sc...
Cover Page
Full-text available
The regular issue 4(3) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released today. It is stored here: http://ncr-journal.bear-land.org/journal/16. The cover shows Cervus elaphus xanthopygus in the State Nature Reserve «Bolshekhekhtsirskiy» (Russia) (photo taken by a camera trap; provided by Dr. Rimma S...
Cover Page
Full-text available
The special issue 4(Suppl.1) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released today. It is stored here: http://ncr-journal.bear-land.org/journal/24. This issue is entitled as "Wildfire management and wildfire impact on biodiversity in Protected Areas". The cover shows evidence of the wildfire in th...
Cover Page
Full-text available
The special issue 4(Suppl.2) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released today. It is stored here: http://ncr-journal.bear-land.org/journal/25. This issue is entitled as "Conservation of equid taxa". The cover shows Przewalski’s horses (Equus ferus przewalskii Poliakov, 1881) in the Pre-Urals...
Cover Page
Full-text available
The regular issue 4(2) of the journal "Nature Conservation Research" (http://ncr-journal.bear-land.org/) has been released today. It is stored here: http://ncr-journal.bear-land.org/journal/15. The cover shows Colchicum ancyrense in the Karadag State Nature Reserve (Crimea) (author: Dr. A.V. Fateryga). This issue of the journal "Nature Conservation...
Article
Full-text available
2019, The Author(s), under exclusive licence to Springer Nature Limited. In this Letter, the middle initial of author G. J. Nabuurs was omitted, and he should have been associated with an additional affiliation: ‘Forest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, The Netherlands’ (now added as affiliation 18...
Article
Full-text available
A spatially explicit global map of tree symbioses with nitrogen-fixing bacteria and mycorrhizal fungi reveals that climate variables are the primary drivers of the distribution of different types of symbiosis.
Article
Full-text available
Aim Large tropical trees form the interface between ground and airborne observations, offering a unique opportunity to capture forest properties remotely and to investigate their variations on broad scales. However, despite rapid development of metrics to characterize the forest canopy from remotely sensed data, a gap remains between aerial and fie...
Article
Full-text available
The Neotropics, Afrotropics and Madagascar have different histories which have influenced their respective patterns of diversity. Based on current knowledge of these histories, we developed the following predictions about the phylogenetic structure and composition of rainforest tree communities: (Hypothesis 1) isolation of Gondwanan biotas generate...
Data
Population occupancy status. By class (a), IUCN category (b), body mass (c), guild (d), landscape type (e), and hunting status (f). Bar height illustrates the relative frequencies of each occupancy status, and bar width illustrates the sample size. Asterisks indicate a significantly different occupancy status. See S2 Table for numerical data. (TIF)
Data
Occupancy status by TEAM site and guild. The proportion of populations with decreasing (orange), increasing (purple), unknown (gray), or stable (white) occupancy for each guild at each site; n = 511 populations. See S1 Table for site information corresponding to the three-letter site codes. Bar length illustrates the proportion of each occupancy st...
Data
Pairwise relationships between continuous site-level variables. Upper triangular portion of the matrix contains Pearson correlation coefficients, with the font size proportional to the correlation coefficient. Lower triangular portions of the matrix contain pairwise scatter plots to illustrate associations. “PAsize” is the log of the size of the pr...
Data
Summary information for TEAM sites. Including the full site name, site code, country, number of years of camera trap data, number of populations monitored by TEAM, percent of populations for each occupancy status, percent of monitored populations that were reported as hunted or not hunted, landscape connectivity, camera trap sampling area, protecte...
Data
Population occupancy status and monitoring duration. Frequency histogram of population trends based on the number of years of camera trap data (3–4 y [n = 8 sites, 270 populations], 5 y [n = 4 sites, 141 populations], or 6 y or more [n = 3 sites, 100 populations]). While the variance in occupancy trends decreased with additional years of data, the...
Data
Population occupancy over time. Each line depicts the trend of a particular species population monitored by TEAM. Color depicts significantly decreasing (orange), significantly increasing (purple), unknown (gray), or stable (black) occupancy trends. See S2 Table for numerical data. (TIF)
Data
Forest cover and landscape classification. (a) Green represents forest cover and brown represents non-forested cover for the ZOI of each protected area (Materials and Methods). Bold text is the code for each TEAM site. x- and y-axis labels are degrees latitude and longitude, respectively. (b) The UPGMA cluster analysis was based on two measures of...
Data
AIC comparison of univariate logistic regression models. For (a) the proportion of decreasing occupancy status populations per site and (b) the proportion of increasing occupancy status populations per site. For both decreasing and increasing occupancy status proportions, the null models with no covariates performed better (delta AIC > 2) than all...
Data
Monitored populations and associated attribute data. The following attributes are listed for each population: Class, Order, Family, Species, IUCN Red List Status (TH = Threatened, NT = Near Threatened, VU = Vulnerable, LC = Least Concern, DD = Data Deficient), Body Mass, Guild (Omnivore, Carnivore, Herbivore, Insectivore), Occupancy Coefficient Slo...

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Projects (3)
Project
Science-i, a transparent and FAIR (Findable, Accessible, Interoperable, and Reusable) web platform for international research collaboration, empowers ensemble research projects of everyone, especially under-represented and under-privileged people from across the world.
Project
The journal “Nature Conservation Research” (http://ncr-journal.bear-land.org/) is one of the first exactly scientific journals, aimed to show the quality and level of scientific investigations that are carried out in the Protected Areas, studies of biological diversity and also biology and ecology of threatened species. The Journal publishes review articles, original articles, short communications, discussion materials, research notes as well as chronicles. The publication frequency is 4 issues per year. Also, we publish special issues (as a rule – 2 issues per year) dedicated to certain thematics in the field of the nature conservation and related topics.