Activity
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Wild Earth Allies botanist Steven Brewer recently returned to Silk Grass Wildlife Preserve to continue research on “The Trees of Belize," a project…
Wild Earth Allies botanist Steven Brewer recently returned to Silk Grass Wildlife Preserve to continue research on “The Trees of Belize," a project…
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Bat exit counts from our BrandenBark Structures that were installed last year with Dr Roby. It is amazing how fast bats find and utilize these roosts.
Bat exit counts from our BrandenBark Structures that were installed last year with Dr Roby. It is amazing how fast bats find and utilize these roosts.
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Experience & Education
Licenses & Certifications
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Wetland delineation
Wetland Training Institute
Issued
Publications
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A new species of Cinnamomum (Lauraceae) from the Bladen Nature Reserve, southern Belize
Phytokeys
A new species in the Lauraceae, Cinnamomum bladenense S.W. Brewer & G.L. Stott, is described from the Bladen Nature Reserve in southern Belize. The new species is similar to Cinnamomum brenesii (Standl.) Kosterm., from which it differs by its much smaller, narrowly-campanulate flowers, its inner tepals glabrous abaxially, its shorter petioles, its minutely sericeous younger twigs, and its abaxial leaf surfaces not glaucous and with prominent secondary venation. A description, preliminary…
A new species in the Lauraceae, Cinnamomum bladenense S.W. Brewer & G.L. Stott, is described from the Bladen Nature Reserve in southern Belize. The new species is similar to Cinnamomum brenesii (Standl.) Kosterm., from which it differs by its much smaller, narrowly-campanulate flowers, its inner tepals glabrous abaxially, its shorter petioles, its minutely sericeous younger twigs, and its abaxial leaf surfaces not glaucous and with prominent secondary venation. A description, preliminary conservation assessment, and photographs of the species as well as a key to and notes on the Cinnamomum of Belize are provided.
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Spathelia belizensis, a new species and first record for the genus in Central America (tribe Spathelieae, Rutaceae)
Phytokeys
Spathelia L. as currently circumscribed is endemic to the western portion of the West Indies, and contains nine species, one endemic to the Bahamas, three endemic to Jamaica and five endemic to Cuba. The discovery of a new species in Belize brings the total number of species in Spathelia to ten and expands its known distribution beyond the West Indies. Spathelia belizensis sp. nov. is herein described, illustrated and contrasted to its most morphologically similar congener. A key to the species…
Spathelia L. as currently circumscribed is endemic to the western portion of the West Indies, and contains nine species, one endemic to the Bahamas, three endemic to Jamaica and five endemic to Cuba. The discovery of a new species in Belize brings the total number of species in Spathelia to ten and expands its known distribution beyond the West Indies. Spathelia belizensis sp. nov. is herein described, illustrated and contrasted to its most morphologically similar congener. A key to the species of Spathelia is provided.
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The FORMNET-B database: Monitoring the biomass and dynamics of disturbed and degraded tropical forests
Journal of Vegetation Science
The biomass and dynamics of disturbed and degraded tropical forests have mostly been ignored in the recent scientific literature, partly because of a spot-light on old-growth forests but also due to a lack of long-term data from degraded forests. There is a pressing need to understand the rates and patterns of growth, mortality and recruitment in degraded forests, not only because they are increasing in area relative to old-growth forests, but also due to their potential capacity to sequester…
The biomass and dynamics of disturbed and degraded tropical forests have mostly been ignored in the recent scientific literature, partly because of a spot-light on old-growth forests but also due to a lack of long-term data from degraded forests. There is a pressing need to understand the rates and patterns of growth, mortality and recruitment in degraded forests, not only because they are increasing in area relative to old-growth forests, but also due to their potential capacity to sequester large amounts of carbon dioxide from the atmosphere.This paper introduces a permanent forest plot network and database, FORM-NET-B (GIVD ID# NA-BZ-001), designed to study the long-term dynamics of disturbed and degraded tropical forests in Belize, Central America
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The Tree Biodiversity Network (BIOTREE-NET): prospects for biodiversity research and conservation in the Neotropics
Biodiversity & Ecology / Journal of the Division Biodiversity, Evolution and Ecology of Plants of the Biocenter Klein Flottbek, the Herbarium Hamburgense, and the Botanical Garden, University of Hamburg
Biodiversity research and conservation efforts in the tropics are hindered by the lack of knowledge of the assemblages found there, with many species undescribed or poorly known. Our initiative, the Tree Biodiversity Network (BIOTREE-NET), aims to address this problem by assembling georeferenced data from a wide range of sources, making these data easily accessible and easily queried, and promoting data sharing. The database currently comprises ca. 50,000 tree records of ca. 5,000 species (230…
Biodiversity research and conservation efforts in the tropics are hindered by the lack of knowledge of the assemblages found there, with many species undescribed or poorly known. Our initiative, the Tree Biodiversity Network (BIOTREE-NET), aims to address this problem by assembling georeferenced data from a wide range of sources, making these data easily accessible and easily queried, and promoting data sharing. The database currently comprises ca. 50,000 tree records of ca. 5,000 species (230 in the IUCN Red List) from >2,000 forest plots in 11 countries. The focus is on trees because of their pivotal role in tropical forest ecosystems (which contain most of the world's biodiversity) in terms of ecosystem function, carbon storage and effects on other species. BIOTREE-NET currently focuses on southern Mexico and Central America, but we aim to expand coverage to other parts of tropical America. The database is relational, comprising 12 linked data tables. We summarise its structure and contents. Key tables contain data on forest plots (including size, location and date(s) sampled), individual trees (including diameter, when available, and both recorded and standardised species name), species (including biological traits of each species) and the researchers who collected the data. Many types of queries are facilitated and species distribution modelling is enabled. Examining the data in BIOTREE-NET to date, we found an uneven distribution of data in space and across biomes, reflecting the general state of knowledge of the tropics. More than 90% of the data were collected since 1990 and plot size varies widely, but with most less than one hectare in size. A wide range of minimum sizes is used to define a 'tree'.
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La Red Internacional de Inventarios Forestales (BIOTREE-NET) en Mesoamérica: avances, retos y perspectivas futuras
Ecosistemas: Revista científica de Ecología y Medio Ambiente
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Characteristics of roosts used by Rafinesque’s big-eared bat (Corynorhinus rafinesquii) on Camp Mackall, North Carolina
Conservation and Management of Eastern Big-eared Bats, A symposium
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Ignorant seed predators and factors affecting the seed survival of a tropical palm
Oikos
In addition to acting as seed predators, some terrestrial mammals bury seeds via scatter hoarding. This study system used two permanent plots in examining the interaction between small rodents and the seeds of the palm Astrocaryum mexicanum. We tested how experimental burial, and fruiting status of the parent, distance to the parent, seed size, and microsite characteristics affect the survival of these seeds. Up to 34% of the buried seeds that were exposed only to ignorant rodent foragers…
In addition to acting as seed predators, some terrestrial mammals bury seeds via scatter hoarding. This study system used two permanent plots in examining the interaction between small rodents and the seeds of the palm Astrocaryum mexicanum. We tested how experimental burial, and fruiting status of the parent, distance to the parent, seed size, and microsite characteristics affect the survival of these seeds. Up to 34% of the buried seeds that were exposed only to ignorant rodent foragers (individuals not responsible for burial) survived. In comparison, less than 1% of seeds buried by scatter hoarding rodents survived in previous studies, a percentage that is comparable to the low survival of unburied seeds in this study (<2%). Increasing distance and/or seed density positively affected survival of unburied seeds. Distance to parent had no effect on buried seed survival. Buried seed survival was most strongly and significantly determined by the fruiting status of the trees under which they occurred. Seeds experienced significantly greater predation if buried under “parent” trees that fruited during the experiment. Buried seed survival was also negatively affected by germination, as germination may signal the presence of a seed to foraging rodents. There was some indication of a positive effect of tree density on seed survival between the two plots, whereas differences in rodent abundance appear to have no effect on seed survival. Seed size and microsite characteristics had no significant effect on buried seed survival, likely due to the greater proportional effects of other factors and the longevity of A. mexicanum seeds. The results of this study were used to generate a hypothetical causal network showing how comparatively low recovery of buried seeds by ignorant foragers – combined with processes determining the removal of scatter hoarding foragers from their scattered seed caches – may affect seedling recruitment in A. mexicanum.
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Predation and dispersal of large and small seeds of a tropical palm
http://onlinelibrary.wiley.com/doi/10.1034/j.1600-0706.2001.920206.x/abstract
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A seasonal evergreen forest in Belize: unusually high tree species richness for northern Central America
Botanical Journal of the Linnean Society
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The Palms of Belize: Species Richness and a Key Based on Vegetative Characters
Palms (formerly Principes)/ The International Palm Society
More activity by Steven
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It’s way more than juice! Our cold-pressed juices are a regenerative asset ensuring good lives for our Belizean employees, customers, and partners.…
It’s way more than juice! Our cold-pressed juices are a regenerative asset ensuring good lives for our Belizean employees, customers, and partners.…
Liked by Steven Brewer
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This #WorldSeaTurtleDay, we’re spotlighting our partners and team members who protect sea turtles and their habitats! 👏 The community-based efforts…
This #WorldSeaTurtleDay, we’re spotlighting our partners and team members who protect sea turtles and their habitats! 👏 The community-based efforts…
Liked by Steven Brewer
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Have you always wanted to know more about the wonderful world of Juncus? If so, please listen to my most recent appearance on the In Defense of…
Have you always wanted to know more about the wonderful world of Juncus? If so, please listen to my most recent appearance on the In Defense of…
Liked by Steven Brewer
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Our collaboration with Silk Grass Farms in Belize is advancing critical tree inventory work, supporting forest management, and protecting high…
Our collaboration with Silk Grass Farms in Belize is advancing critical tree inventory work, supporting forest management, and protecting high…
Liked by Steven Brewer
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Did you know rosewood timber is the world's most trafficked wildlife product? It accounts for 30–40% of global illegal wildlife trade—more than all…
Did you know rosewood timber is the world's most trafficked wildlife product? It accounts for 30–40% of global illegal wildlife trade—more than all…
Liked by Steven Brewer
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