Photo by Roxana Leal, April 8th 2022. Cañón de Río Dulce. (Typha domingensis)
Searching in the internet we were able to see videos of how Typha, when ripe, takes out something similar to cotton and flies through the air. We wanted to see it with our own eyes at some point.
When leaving one of the rivers where we documented Grias cauliflora, we could observe Typha and there was just one of these plants already mature. Dr. Nicholas decided to investigate and when he opened it his "cotton" began to come out and fly through the air. It was very nice to see this!
Typha domingensis is classified as an emergent rooted aquatic microphyte, since it is rooted at the bottom of water bodies and its stem blades and inflorescence emerge from the water. This plant reproduces by its rhizome and the propagation of its flying seeds. It inhabits fresh and brackish inland waters.
Typha spp. it has a high economic potential since fiber is extracted from this plant for the manufacture of fabrics. It also has a high ecological importance, due to the fact that, in some bodies of water, this plant is introduced to control the excess of nutrients that can accelerate eutrophication processes. But, the introduction of this plant in bodies of water needs to be careful since its reproduction and propagation can accelerate too fast because its rhizomes and its vast seed bank in the soil (Hall, 2008).
Photo by Alejandra Gutiérrez, March 2021, Cánon D1. Río Cáliz. Inflorescence of Typha domingensis.
Photo by Victor Mendoza. May 2nd 2021. Sory RX100 Underwater. Lago Petén Itza, El Remate. Example of a rooted Typha domingensis.
Bibliography
Hall, S. Instituto Nelson de Estudios Ambientales, Universidad de Wisconsin-Madison, EE. UU.
Written by Lic. Roxana Leal & Ing. Victor Mendoza Bibliography by Ing. Victor Mendoza Photographs by Lic. Roxana Leal, Alejandra Gutiérrez & Ing. Victor Mendoza
During 2021 and 2022 the team of FLAAR (USA) and FLAAR Mesoamerica (Guatemala) have been focused on finding savannas from satellite images and then figuring out how to find these savannas so we could hike to each one.
Here is an aerial photo by Haniel Lopez from the FLAAR drone DJI Mavic 2 Pro that shows how many savannas are in the southeast part of the Parque Nacional Laguna del Tigre (PNLT). We have found 35 savannas so far (and over 70 savannas a hundred kilometers to the east, outside the PNLT). Our project is 5-years of cooperation and coordination with CONAP for the entire Reserva de la Biosfera Maya (RBM), Peten, Guatemala.
Posted April 28, 2022
Written by Nicholas Hellmuth
We are pleased to share with you our invitation to deliver the results of our project: "Livingston Biodiversity Documentation" where you can learn a little more about the project and the achievements obtained by our team.
This presentation will be in Spanish starting 6 PM on Thursday, 17 March.
Very close to the Zotz camp you can find a watering hole in the southern part. The aquatic plants that prevail are the Lechuguilla de agua (Pistia stratiotis); Lentejas de agua (Lemna sp.) and (Salvinia sp.) lettuce had a very small white flower.
Everything together creates a very beautiful landscape. On the shore you can see a Zapotón, Pachira aquatica, which we have photographed in large numbers in the Municipality of Livingston, but you can hardly see it in Petén.
Aguada Lechuguilla – El Zotz. Drone Photo by Haniel López. February 17th
At least an hour by car from the first camp of the biotope you can reach the entrance of another of the watering holes of this site, in which if you are lucky you can see crocodiles (Crocodylus moreletii). Then you can go to the Laguna El Palmar, which is a bit complicated to observe, since there is a lot of vegetation growing around it. The team is prepared so we have a ladder which allowed us to have a better view of the place.
According to SIGAP (s.f.) “On the shore of the El Palmar lagoon the oldest occupation was found, where small human groups took advantage of the abundance of natural resources. For more than 900 years they developed their settlement, with an Astronomical Commemoration Complex and a Triadic group, both decorated with masks. In the year 100 A.D. the political headquarters moved to the top of the limestone escarpment, in search of defensive spaces.”
Written by Vivian Hurtado & Roxana Leal Identified Species by Victor Mendoza
In February we documented species in Río Ixtinto, within the Parque Nacional Yaxha, Nakum y Naranjo. Our main objective was to photograph the blooms of Palo de Tinto or Palo de Campeche (Haematoxylum campechianum). This tree is native to the Yucatan Peninsula in Mexico, Guatemala, and Belize. It was an important source for extracting red, blue and black dyes, but in addition to its dye use, it is also used for restoration, forage, firewood, ornamental planting and it is a honey species (Red de Viveros de Biodiversidad, s.f.).
Taxonomy:
Domain
Eukaryota
Kingdom
Plantae
Phylum
Spermatophyta
Subphylum
Angiospermae
Class
Dicotyledonae
Order
Fabales
Family
Fabaceae
Subfamily
Caesalpinioideae
Genus
Haematoxylum laceolatum
Species
Haematoxylum campechianum laceolatum
Source: CABI, n.d.
Haematoxylum campechianum Palo de Campeche or Palo de Tinto. PNYNN - Río Ixtinto. Photo by Edwin Solares. February 14th
During the tour we did not find as many flowers as we expected, but it was different from the previous months. On this occasion the weather has been a bit cold and rainy so the River was fuller and wider, we took some pictures with a Drone which allowed us to see that the Río Ixtinto is linked to the Julequito Lagoon in this season.
We saw several birds flying along the river bank like a Kingfisher and two woodpeckers, this was cute and curious on Valentine's Day.
Haematoxylum campechianum Palo de Campeche or Palo de Tinto. PNYNN - Río Ixtinto. Photo by Edwin Solares. February 14th
Written by Vivian Hurtado & Roxana Leal Identified Species by Victor Mendoza
In October we visited Lagunita Creek for the third time during the Documentation of Livingston, Izabal Project. This time the atmosphere was more humid than the last times we have visited it. Therefore, we find various mushrooms on the trails that we want to show you.
As you drive from Guatemala City towards Rio Dulce (en route to Peten) you will see giant mahogany trees all along the highway in El Progresso and Zacapa areas. The mahogany trees are easiest to recognize from October onward when the giant seed pods are visible.
I have been driving this road since the 1970’s. so am familiar with these beautiful trees and their large seed pods (the size of a large pine cone, but smooth).
This week (November 11, 2021), I kept seeing these pods but they were a white color, not the soft brown color of a mature pad that I was used to. So finally I stopped to take some snapshots. Our telephoto lenses were all packed in the back of the vehicle so I had only an iPhone 13 Pro Max available to take snapshots.
We were en route to Rio Dulce, to stay as guests of the owner of Marina and Hotel El Tortegal, along the Rio Dulce south of the highway bridge.
Swietenia macrophylla King, plant family Meliaceae, mahogany in English, caoba in Spanish.
