51 research outputs found
Can Multifunctional Landscapes Become Effective Conservation Strategies? Challenges and Opportunities From a Mexican Case Study
Protected Areas (PA) are the main strategy for nature conservation. However, PA are
not always efficient for ecological conservation and social wellbeing. A possible alternative for
conservation in human-dominated landscapes are Multifunctional Landscapes (ML), which allow the
coexistence of multiple objectives, such as nature conservation and resource use. Using the activity
system framework, we analyzed whether the ML concept was an operative alternative to PA within
an area of interest for conservation in Veracruz, Mexico. Activity systems refer to the set of productive
strategies that result from the mobilization of resources and which, within particular environmental
governance contexts, shape the landscape. To understand the challenges and opportunities of our
case study, we: (1) delimited the landscape according to local conservation interests; and (2) analyzed
the role of stakeholders in shaping this landscape. The delimited landscape included areas considered
wildlife reservoirs and water provisioning zones. Our results suggested that the existence of local
conservation areas (private and communal), combined with shaded-coffee agroforestry practices,
made this region an example of ML. Although local conservation initiatives are perceived as more
legitimate than top-down approaches, agreements amongst stakeholders are essential to strengthen
environmental governance. In specific socio-ecological contexts, ML can be effective strategies for
conservation through agroecosystems that maintain a high-quality landscape matrix, allowing nature
preservation and delivering economic benefits
The impact of the establishment of otoch ma’ax yetel kooh protected area (YucatÁn, mexico) on populations of two neotropical primates
In 2002, Otoch Ma’ax Yetel Kooh (OMYK) was decreed a federal Flora and Fauna Protected Area in the state of Yucatán, Mexico, resulting in bans on hunting, logging and slash-and-burn agriculture within its limits. Our aim was to evaluate the influence of the establishment of the protected area on local primate populations. We compared relative abundances of Geoffroy’s Spider Monkeys (Ateles geoffroyi) and Black Howler Monkeys (Alouatta pigra) in mature and secondary forest before OMYK was established (in 1998) and 13 years after (in 2015). In both years, the relative abundance of Spider Monkeys was higher in mature than in secondary forest and Howler Monkeys were found exclusively in mature forest. The overall similarity in Spider and Howler Monkey relative abundances over time when mature and secondary forests are considered together is likely because the primates were not hunted and logging was not carried out prior to the establishment of the protected area. Benefits to wildlife of banning slash-and-burn agriculture take longer to become apparent. Still, the legal status of the protected area is critical to defend this site from future land-use changes and it allows the secondary forests to age, thereby increasing habitat for the primate populations
Anthropogenic habitat disturbance and food availability affect the abundance of an endangered primate: a regional approach
Anthropogenic habitat disturbances are causing large-scale declines in animal abundance. For many species, information on the drivers of decline is lacking or restricted to single sites, despite calls for regional approaches. In this study, we determined the effect of different types of habitat disturbance (natural or anthropogenic) and ecological factors on Geoffroy’s spider monkey (Ateles geoffroyi) abundance using a regional approach. We selected this study species because of its high degree of social flexibility and its endangered status. We surveyed 4 sites in the Yucatan Peninsula and recorded the number of individual monkeys encountered along 72 line-transect segments each measuring 500 m. Habitat disturbance variables were obtained from open-access databases and included distance to roads, presence and number of hurricanes, forest loss, and presence of forest fires. Ecological factors were based on data collected during vegetation surveys and included number and basal area of feeding tree species, and canopy height. We ran generalized linear mixed models and found that monkey abundance was negatively affected by forest loss but positively affected by the basal area of feeding trees. We, therefore, suggest that a combination of anthropogenic and ecological factors affects spider monkey abundance. Spider monkey’s high degree of social flexibility may be a mechanism allowing them to adjust to changes in their environment when canopy connectivity is not lost. Our results provide policy and conservation decision makers with key information to develop regional conservation plans. Additionally, our methods can be used to identify the factors that affect the abundance of other mammal species. © 2020, Deutsche Gesellschaft für Säugetierkunde
Changes in the socio-ecological system of a protected area in the yucatan peninsula: A case study on land-use, vegetation cover, and household management strategies
Protected areas (PA) are effective means for protecting biodiversity, but less is known about their effect on the social-ecological system (SES). Using a semi-experimental approach and a descriptive case study based evaluation, we analyzed the effect of a PA in the Yucatan Peninsula on land-cover and household resource management strategies in time and space (before and after the PA establishment; inside and outside its limits). To assess the changes of land-use practices in the areas surrounding the communities inside and outside the PA, and their change over time (from 2003 to 2015), we used remote sensing analysis and semi-structured interviews. Our results show that after the PA was established, the forest increased and agricultural plots decreased inside and to a lesser extent outside the PA. However, fires reduced the area of old-growth forest and increased young secondary forest, highlighting the system’s vulnerability to uncommon events. Resource management strategies were also affected: while inside the PA households tended toward specializing on tourism, outside the PA household strategies implied a diversification of productive activities. Overall, the establishment of the PA proved to be an effective tool to promote forest recovery and prevent deforestation in the regions surrounding the communities both inside and outside the PA
Quantifying active and passive reforestation in central Mexico from 1986-2012 : assessing the evidence of a forest transition
Unidad de excelencia María de Maeztu MdM-2015-0552Recent land cover analysis reveals significant forest recovery around the world, suggesting that some countries may be in a forest transition. However remotely sensed imagery does not reveal the driving causes of forest recovery, which may be due to active reforestation efforts or natural successional processes (passive reforestation). We aimed to distinguish these two processes in the priority temperate forests surrounding the Monarch Butterfly Biosphere Reserve (342 773 ha) in central Mexico. We combine an analysis of remotely sensed imagery with field interviews (n=43) to examine the mechanisms and drivers of observed forest recovery. Our analysis of the satellite imagery revealed a net increase of 3 798 ha of forest between 1986 and 2012, yet the rate of recovery is slowing. Our interview data revealed that the vast majority of the recovered forests are the result of natural regrowth (passive reforestation), and most of this regrowth is observed on degraded forests. We estimate that between 58 and 429 ha have been recovered from active reforestation efforts in the 1986-2012 period. We find that reduced logging and grazing pressures are important drivers of forest recovery, while agricultural abandonment may be less influential than often believed. Our results suggest that reforestation investments might be wisely spent supporting and maintaining the natural resilience of forests rather than on costly reforestation programs
The neotropical reforestation hotspots : a biophysical and socioeconomic typology of contemporary forest expansion
Tropical reforestation is a significant component of global environmental change that is far less understood than tropical deforestation, despite having apparently increased widely in scale during recent decades. The regional contexts defining such reforestation have not been well described. They are likely to differ significantly from the geographical profiles outlined by site-specific observations that predominate in the literature. In response, this article determines the distribution, extent, and defining contexts of apparently spontaneous reforestation. It delineates regional ‘hotspots’ of significant net reforestation across Latin America and the Caribbean and defines a typology of these hotspots with reference to the biophysical and socioeconomic characteristics that unite and distinguish amongst them. Fifteen regional hotspots were identified on the basis of spatial criteria pertaining to the area, distribution, and rate of reforestation 2001–2014, observed using a custom continental MODIS satellite land-cover classification. Collectively, these hotspots cover 11% of Latin America and the Caribbean and they include 167,667.7 km2 of new forests. Comparisons with other remotely sensed estimates of reforestation indicate that these hotspots contain a significant amount of tropical reforestation, continentally and pantropically. The extent of reforestation as a proportion of its hotspot was relatively invariable (3–14%) given large disparities in hotspot areas and contexts. An ordination analysis defined a typology of five clusters, distinguished largely by their topographical roughness and related aspects of agro-ecological marginality, climate, population trends, and degree of urbanization: ‘Urban lowlands’, ‘Mountainous populated areas’, ‘Rural highlands’, ‘Rural humid lands’ and ‘Rural dry lands’. The typology highlights that a range of distinct, even oppositional regional biophysical, demographic, and agricultural contexts have equally given rise to significant, regional net reforestation, urging a concomitant diversification of forest transition science
Superação de dormência de sementes como estratégia para restauração florestal de pastagem tropical
Identification and quantification of drivers of forest degradation in tropical dry forests: A case study in Western Mexico
Conservation in Context: A Comparison of Conservation Perspectives in a Mexican Protected Area
The conservation of biodiversity in protected areas depends on the interests and agendas of stakeholders involved in the planning and enforcing of management actions. The challenge, therefore, has been to identify and include the perspectives of multiple participants important to local conservation. This paper describes the social context in which local conservation is conducted in a natural protected area in Yucatan, Mexico. In particular, it examines the agreement and expectations among local stakeholders on the main goals the reserve should achieve. Through participatory observation and semi-structured interviews, we analyzed the perceptions on conservation of the five groups relevant to the area management: 1) local people; 2) conservation government agency; 3) scientists; 4) non-governmental organization, and 5) a tourist agency. All actors agreed that the protected area should fulfill two main goals: i) to conserve biodiversity and, ii) to improve local welfare and development. In general, ecotourism is perceived as the best option for protecting the forest and promoting local development. Traditional agriculture, on the other hand, is perceived as the main conservation threat, but recognized as a crucial component of local wellbeing. We discuss these results in the context of the Yucatan Peninsula
Conservation in Context: A Comparison of Conservation Perspectives in a Mexican Protected Area
The conservation of biodiversity in protected areas depends on the interests and agendas of stakeholders involved in the planning and enforcing of management actions. The challenge, therefore, has been to identify and include the perspectives of multiple participants important to local conservation. This paper describes the social context in which local conservation is conducted in a natural protected area in Yucatan, Mexico. In particular, it examines the agreement and expectations among local stakeholders on the main goals the reserve should achieve. Through participatory observation and semi-structured interviews, we analyzed the perceptions on conservation of the five groups relevant to the area management: 1) local people; 2) conservation government agency; 3) scientists; 4) non-governmental organization, and 5) a tourist agency. All actors agreed that the protected area should fulfill two main goals: i) to conserve biodiversity and, ii) to improve local welfare and development. In general, ecotourism is perceived as the best option for protecting the forest and promoting local development. Traditional agriculture, on the other hand, is perceived as the main conservation threat, but recognized as a crucial component of local wellbeing. We discuss these results in the context of the Yucatan Peninsula
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