Problems

Guatemala harbours a rich — albeit insufficiently studied — diversity of ecosystems and species [1], [2], [3].

The country’s tropical location, its complex orography and wide elevation range, plus interannual climatic variations created by ENSO events, have moulded a diverse array of climatic zones and terrestrial and marine environments. Thirteen distinct Holdridge life-zones grouped into five broad categories (tropical forest, piedmont tropical forest, mountain tropical forest, and sub-Andean tropical forest) have been identified in Guatemala [4], [5]. In addition, a diverse array of coastal and marine environments and ecosystems (including coral reefs, sea-grass beds, mangroves, beaches, lagoons, and coastal dunes) occur along the country’s 403 km-long coastline [1].

This diversity of ecosystems, along with the country’s geographic position at the junction of the Nearctic and the Neotropical biogeographic realms, have begotten a high species diversity and endemism. Although the country’s flora and fauna have not been adequately inventoried and figures available are inconsistent [1], [2], [6] some 11,806 species of vascular plants, 166 amphibians, 248 reptiles, 744 birds, 229 mammals, 1,003 fish, 59 sharks and relatives, 782 fungi and lichens, and 5,612 invertebrates have been recorded. Guatemala holds perhaps the highest rates of endemism in Central America. Over 13% of the known species of mammals, reptiles, amphibians, birds, and plants are endemic to the country. Guatemala is part of the South Mexican and Central American centre of origin of crop plants — the cradle of crop species such as maize, bean (Phaseolus spp.), gourd and pumpkin (Cucurbita spp.), pepper (Capsicum spp.), cherry tomato (Lycopersicum cerasiforme), and others.

Many zones and particular ecosystems of the country are exceptionally or uniquely biodiverse. The entire country is part of the Mesoamerica hotspot, one of the 36 biodiversity hotspots of the world [7], [8]. The Critical Ecosystems Partnership Fund has identified 26 Key Biodiversity Areas (KBA) in Guatemala, which cover about 49% of the country’s territory [9]. KBAs are sites of global significance for biodiversity conservation and require priority protection due the vulnerability and uniqueness of the animal and plant populations that reside in them [10], [11]. The Lachúa lagoon, La Chorrera-Manchón Guamuchal, Tigre-Río Escondido lagoon, Yaxhá-Nakum–Naranjo, Punta de Manabique, Bocas del Polochic, and Sarstún river have been recognized as wetlands of international importance under the Ramsar convention.

Guatemalan ecosystems and species are being threatened by various anthropogenic pressures. For instance, 680,556 ha of forest were estimated to have been lost between 2010 and 2016, most of those in the Petén Department [12]. Some 26,000 ha of mangroves are estimated to have been lost since the 1950’s. Although data are insufficient to assess with certainty the extent of species loss, 230 plant and 635 vertebrate species have been identified (as of 2021) as vulnerable or threatened with extinction in Guatemala [13], [14].

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