Sunday, July 29, 2012

Laguna de Apoyo is the most beautiful place in Nicaragua


wildlife Nicaragua
A black iguana (Ctenosaura similis) is sometimes green, requiring characters other than color to distinguish it from the green iguana (Iguana iguana), such as the rings of enlarged scales in the tail, the presence of a single large, smooth scale beneath the eye, and the absence of an enlarged scale beneath the tympano. The black iguana is far more common in Laguna de Apoyo Nature Reserve. Photo by Tessa Janga.
Laguna de Apoyo Nature Reserve is such a beautiful place precisely because so much nature is still in and surrounding it. We noticed, many years ago, how the forests were teeming with wildlife and a rich diversity in tropical plants, and that the beautiful clear, blue waters of Lake Apoyo depend on the presence of intact forest along the interior slops of this lake. Although many people visit this special place, it can still count as one of the secrets of Nicaragua.

Catarina
Laguna de Apoyo viewed from Catarina. Photo by Sienna Potts. 
Mankind is the worst enemy of natural areas such as Laguna de Apoyo. Trash dumping, hunting, illegal construction, and deforestation with pesticide use are rampant wherever there are people, and Nicaragua is not different. Just below the Catarina overlook, for instance, a group of "investors" with the blessing of the then-president of Nicaragua built 65 bungalows, a hotel and convention center, all of which add up to a serious ecological disaster, as well as a financial nightmare for the non-Nicaraguans who joined the project as co-investors. But not just like in all countries, many conscious, caring people are found in Nicaragua. For instance, dozens of members of the local community came to Laguna de Apoyo Nature Reserve to participate in a tree planting activity earlier this year. Thanks to all for volunteering your time!
Masaya
Young people from Masaya and neighboring towns came to plant trees in a reforestation activity in Laguna de Apoyo Nature Reserve. Photo by Frank Lindt.
The lake is usually very quiet, especiallly at dawn, with trees along much of its shore attracting birds and other wildlife. Weekends, however, attract visitors from Masaya and other communities, and the lake shore can be festive with families enjoying a day out in nature. The lake stretches four kilometers across and is 180 meters deep, with slightly salty water filled with volcanic minerals. Water clarity varies from five to fifteen meters, making the lake ideal for SCUBA divers to enjoy. 
Granada
Dawn on Lake Apoyo can be serene. Photo by Christine Bruxer. 
Lake Apoyo is known for its water, but more is going on than may meet the eye. This lake is located inside a volcanic crater which exploded 23,000 years ago, leaving a gaping hole hundreds of meters deep in the earth. Hot spots still abound around and inside the lake, too. SCUBA divers can easily find volcanic vents in the lake, and a few are also found on the lake edge. Many water wells are useless, because the water they produce is hot, salty and corrosive.


Most people think of the water in the lake when they think of Laguna de Apoyo Nature Reserve, because it is simply spectacular. Our team of wildlife specialist and volunteers, however, have taken the opportunity to learn many of the secrets of the jungle around the lake, inside the volcanic crater. Over four hundred species of plants are found in this forest, along with dozens of species of mammals, reptiles, and hundreds of birds.

wildlife in Nicaragua
This photo makes the first documented gray four-eyed opossum (Philander opossum) in Laguna de Apoyo Nature Reserve. Many secrets of nature await the intrepid observer. Photo by Lucas Betthauser.
Professional wildlife guides can arrange guided tours of the nature in Laguna de Apoyo Nature Reserve. A typical birdwatching walk of only one hour at dawn, for instance, yields around 25 species.
wildlife Nicaragua
The simple checkerspot, Chlosyne hippodrome, is one of more than two hundred butterfly species one can appreciate in Laguna de Apoyo Nature Reserve. Photo by Helen Croll.
Estacion Biologica provides lodging, meals, and services such as birdwatching SCUBA diving, and kayaking the lake. We also provide courses in Spanish and in natural resources management. Our site is operated by FUNDECI/GAIA. Visitors and tourists are always welcome.
Click on the "escudo" to contact us.


Monday, July 16, 2012

Dive Laguna de Apoyo

Dive Laguna de Apoyo
Let's get in the water! Photo by Kim Bracken.
Most people who SCUBA dive have experience in the ocean. But diving in a tropical lake is a unique experience, especially when diving in Lake Apoyo. Its water is too salty to be potable, however it is still near the buoyancy of freshwater. Lakes differ from the ocean, too, in smaller waves and currents, and fewer dangerous animals. Lake Apoyo has essentially no moving water, making the dives easily managed. No fish or other animals in Lake Apoyo sting or bite!

Lake Apoyo is not just a freshwater lake, however. It is a volcanic crater lake, occupying a huge volcanic caldera between Volcano Masaya to the north and Volcano Mombacho to the south along the string of volcanoes across the Pacific side of Nicaragua. Because the Apoyo volcano is mostly a hole, however, the lake is its most prominent feature.

Dive Laguna de Apoyo
Divers discuss their dive plan before heading down. Photo by Kim Bracken.
FUNDECI/GAIA coordinates SCUBA dives in Lake Apoyo, where you can accompany scientists in their study of the fishes. Each month, our divers review fish populations in several habitats, and visiting divers can join us on our dives. Divers get to see many species of fish in a single dive, and learn how these fish live, breed, and how we are working to protect them.

Not so many fish species occupy Lake Apoyo: only jaguar cichlids (Parachromis managuensis), mollies (Poecilia sphenops), silversides (Atherinella sardina), and several members of the Midas cichlid species complex (Amphilophus cf. citrinellus) are considered native. These fish populations probably got their start in Lake Apoyo by hurricanes, birds, or even the precolombian human populations that could have brought some individuals from Lake Nicaragua, just four kilometers to the east.

Dive Laguna de Apoyo
Several endemic fish species from the Amphilophus species flock occupy Lake Apoyo. The research group at GAIA has discovered five species to date. Photo by Balasz Lerner.
The Midas cichlid population of Lake Apoyo has attracted the attention of scientists for many years, and has been the principal cause behind the studies we pursue. In 1976, George Barlow began the current trajectory of interest in Lake Apoyo by declaring the arrow cichlid (Amphilophus zaliosus), as a new species. This lake is among the best study sites in the world for sympatric speciation among animals. 

Our group at Estación Biológica has studied these fascinating fish several years. In 2002, we published the official description of three new species in Lake Xiloa. Then in 2008, we published another set of species descriptions, giving official names to three species in Lake Apoyo. In 2010, we then followed with two more species descriptions in Lake Apoyo among the Midas cichlid species group. 

Our ecological studies in two lakes, Apoyo and Xiloa, where we have also performed several years of monitoring, are essential to the Midas cichlid species discoveries. Without being in the water, observing the fish month after month, we would never have been able to distinguish these very similar and closely related species. Our monitoring program has given us a wealth of information which is behind the species discoveries and several other new findings. 

The members of the Midas cichlid species complex found in Laguna de Apoyo are: 

Amphilophus flaveolus
Amphilophus supercilius
Amphilophus zaliosus

These six species are elegantly displayed on our new Laguna de Apoyo t-shirts-please purchase one and support nature research in Laguna de Apoyo!

Dive Lake Apoyo
Among the more common fish in Lake Apoyo today is the Bigmouth Sleeper (Gobiomorus dormitor). This fish was introduced to Lake Apoyo in 1991, and its population has grown dramatically. We at GAIA are studying the impacts of this introduced fish on the native species of Lake Apoyo. Photo by Wito Lapinski. 
The fish of Lake Apoyo are not just some rare novelties. They are facing some serious threats to their continued existence. One of the threats comes from introduced, invasive fish species. On a few occasions, tilapias have been introduced, most notably, in the 1990's as part of an aquaculture experiment using the Nile tilapia (Oreochromis niloticus). This misguided, disastrous activity was conducted with the approval and participation of the Ministry of Natural Resources and the Environment during that period. At the time, tilapia was touted by some influential individuals in Nicaragua as an economic "silver bullet" which would make investors rich and would feed poor people, as a kind of pinnacle to the Blue Revolution. The issue of environmental and health impacts of improper tilapia aquaculture methods in Nicaragua was recently featured in the New York Times. Many ripostes followed, too!

In 1991, an over-enthusiastic local fisherman added to the mix in Lake Apoyo, by bringing a bucketful of bigmouth sleepers (Gobiomorus dormitor) he had just caught from another, nearby lake, to Lake Apoyo and dumping them in. A few fish quickly became thousands and today this fish is ubiquitous. The threats this fish poses to Lake Apoyo's endemic species is magnified by their loss of sensitivity to the dramatic threat the bigmouth sleepers pose to their fry. The research team at GAIA worked with scientists from Finland and Germany to demonstrate the evolutionary naivete to fry predation by the introduced bigmouth sleepers in a 2012 publication.

We also coordinate underwater lake cleanups periodically, our third one was performed in 2011

Dive Laguna de Apoyo
After collecting data, a relaxing moment by the pier is in order! Photo by Kim Bracken.
Would you like to dive with us in Lake Apoyo? We would be happy to schedule a dive with you. You must have the equivalent of an open water certification. We can provide all the equipment and you can help us in our research on these very special fish.
Click on the "escudo" to contact us.

Saturday, July 14, 2012

To Ometepe!

Estacion Biologica volunteer Florian Schmid recently spent a week participating in a very noble project, to provide better library resources to the children in a rural school in Merida, Ometepe Island. This island consists of two volcanos, Maderas and Concepcion, in near the western shore of Lake Nicaragua, also known as Lake Cocibolca. The inhabitants of Ometepe, the largest island found in a freshwater lake on the entire planet, are distant from "civilization", and they have few resources to learn the things we city folks may take for granted. An environmental activist group from the National Agrarian University organized a series of activities to raise funds to provide books and supplies for these children. They sent a few hundred books to the school, and engaged the local children in several activities.

Ometepe
Giselle greets the students of Merida, Ometepe Island. Photo by Florian Schmid.
Ometepe
Jessi installs the books in their new shelves in the Merida school library. Photo by Florian Schmid.
Ometepe
The group of volunteers held guided discussions with the young people of Merida on a variety of environmental themes. Photo by Florian Schmid.
Ometepe
There was time for some dancing! Photo by Florian Scmid.

Physical activities were enjoyed as well as intellectual activities. Photo by Florian Schmid.
Ometepe Island
Lots of smiles! Photo by Florian Scmid.
Big-screen movies are rare in Ometepe Island, so there was a crowd for this showing! Photo by Florian Schmid. 

The cruise back to the mainland from Ometepe Island was risky, but all made it home alive, thanks to the concentrated efforts of the captain. Photo by Florian Schmid.
All children deserve a happy childhood, filled with opportunities to do and to learn, and books are an essential component. Florian and the group from UNA have made a difference in the childhood of some children in Ometepe. If you would like to support causes such as this, contact us to learn of opportunities for donations and volunteer possibilities, too. Thank you for caring about the children of Nicaragua
Click on the "escudo" to contact us.

Thursday, July 12, 2012

Laguna de Apoyo t-shirt is now available

We invite you to help FUNDECI/GAIA and wear a trendy clothing item at the same time. Laguna de Apoyo t-shirts are now available at Estacion Biologica in two colors-red and blue. The t-shirts are high quality, TricoTextil fabric and stitching, and serigraphed with the Laguna de Apoyo logo on the front. 

nature conservation

Two full-sized designs adorn the back. One is of a toucan, a squirrel and a Midas cichlid-all emblematic wildlife found in Laguna de Apoyo Nature Reserve

wildlife conservation

The other back design shows the six endemic fish species of Laguna de Apoyo. These six species, all members of the Midas cichlid species complex, are facing threats of extinction due to human activity. Our work to learn about them and their needs helps the civil society and the government of Nicaragua to determine what measures are most important to protect these species. 

wildlife conservation

The back designs are available in either color. Prices ten dollars for small or medium, eleven dollars for large or extra large. 


The designs on these t-shirts were provided generously by volunteer Silvia Machgeels. By purchasing a t-shirt, you contribute to our program in wildlife monitoring in Laguna de Apoyo Nature Reserve. 


Please come by Estacion Biologica Laguna de Apoyo to pick up your t-shirt or write us at apoyo@gaianicaragua.org. We will gladly send you one!

Click on the "escudo" to contact us.

Friday, June 29, 2012

A new moth species report for Nicaragua




The planet earth has perhaps four million species of animals, plants and other living organisms, of which we have documented only a small proportion. Even of those documented species, not much is known about many of them. Our knowledge of what these species need to continue to survive in healthy, stable populations is vital to prevent drastic loss of biodiversity.

The twenty-first century will be characterized as the century of massive species extinctions due to the intereference of man over nature. Many of the effects of man until now have had localized effects on species, whereas this century will see many species crash completely, never to be found in nature again.

Our group has been conducting monitoring of several groups of flora and fauna in Laguna de Apoyo Nature Reserve during the past three years, and during this period, we have documented many species not previously reported in the reserve, and in some cases, not even reported in Nicaragua. In particular, the moths of Nicaragua are poorly reported, in spite of noble and effective work of several scientists such as Jean-Michel Maes. Our group has made several first reports of moth species in Nicaragua, and here we present one more.

nature tours Nicaragua
Ventral view of Lirimiris truncata. Photo by Pablo Somarriba.
Lirimiris truncata is documented from Mexico to Venezuela, but it there is no record of it found in Nicaragua. Until now. It is a member of the family Notodontidae, of which only eleven species have been documented in Nicaragua. Its larva have been found on trees such as Cordia alliodora (Black Laurel) and Guazuma ulmifolia (West Indian Elm), both of which are abundant in Laguna de Apoyo Nature Reserve and the Pacific eco-region of Nicaragua. Our finding of this moth species in Nicaragua is not at all unexpected, which demonstrates just how much is waiting to be discovered here. 

moth Nicaragua
Dorsal view of Lirimiris truncata. Photo by Pablo Somarriba.
The trailing edge of the forewing of this species, like many in its family, is "hairy". Some of the species in this family are called "kittens" because of this effect. The adult moths in this family do not eat, but they have elaborately feathered antennae. This species also has a characteristic opaque band along the leading edge of the forewing. Its colors are not bright nor are its patterns particularly rich like some other moth species. Furthermore, this individual had lost many of its wing scales upon capture and handling.

butteflies and moths Lirimiris
Antennae of Lirimiris truncata are prominently feathered up throughout the proximal three-quarters of the antenna length. Photo by Pablo Somarriba.
We have made first record documentations for more than one hundred species of moths and butterflies for the Laguna de Apoyo Nature Reserve, and dozens of these records are first records for the entire country as well. We still have much to do in this work, however. Our biodiversity studies depend on donations and volunteers. Would you like to help us study and protect the biodiversity of Nicaragua? Please contact us if you would like to help.
Lepidoptera
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Tuesday, June 26, 2012

Hummingbirds I



hummingbirds Nicaragua
Blue-throated Goldentail (Hylocharis eliciae) in Laguna de Apoyo Nature Reserve, Nicaragua. Photo by Wendy van Kooten.
Identifying some birds in the forest on sight is relatively easy, especially when the birds are large. Among the most difficult birds to identify are the hummingbirds (Trochilidae). They are the smallest, of course. And, their feathers are iridescent. They glow brightly when the light is just so, but when the light is not just right, they may appear black. We love catching hummingbirds in our bird monitoring project, because we get to see the birds in brilliant splendor, which is immeasurable for the hummingbirds.
The Blue-throated Goldentail is quite local in Laguna de Apoyo Nature Reserve. They are absent from the forests close to Estacion Biologica, yet they are common in a couple of our monitoring sites, one of them where we monitor with mist nets. We think they appreciate the added humidity of the sites where they are common, because the added shade there holds moisture better than in the more open areas.
hummingbirds Nicaragua
This Blue-throated Goldentail (Hylocharis eliciae) is getting measured before getting released to resume his life in the wild. Photo by Wendy van Kooten.
The Blue-throated Goldentail males form leks, areas dense with males seeking breeding partners, in the dry season. These males don't look different from females, so their distinctive attributes are found in their voice and in their ability to defend a well-positioned perch near the center of the lek. The forest round them is filled with their calls as each competes with the others for the attention of female potential mates. 
hummingbirds Nicaragua
The Stripe-throated Hermit (Phaethornis striigularis) in Laguna de Apoyo Nature Reserve, Nicaragua. Photo by Wendy van Kooten.
Most hummingbirds are amply covered by shiny, metallic green plumage. The only hummingbird in Laguna de Apoyo Nature Reserve without any green feathers is the Stripe-throated Hermit (Phaethornis striigularis). This bird may suggest a moth in flight. It tends to be found in low areas such as canyons, dark and humid areas, avoiding the sun. Birdwatchers easily identify the Stripe-throated Hermit on site, in contrast to some of the other hummingbirds, thanks to its strongly decurved bill, as it is the only hummingbird in Laguna de Apoyo Nature Reserve with such a bill.
Little Hermit
The Stripe-throated Hermit shows off his tail feathers. His head has been moistened to facilitate age determination by examination of cranial ossification. Photo by Wendy van Kooten. 
The Stripe-headed Hermit was until recently, considered a subspecies of the Little Hermit (Phaethornis longuemareus), which will be the reported name for our species in older records. The range for what is now considered the Little Hermit is restricted to east and south of eastern Venezuela.
hummingbirds
The Stripe-headed Hermit (Phaethornis striigularis) is the only species in Laguna de Apoyo Nature Reserve sporting a strongly decurved bill. Photo by Wendy van Kooten.
Our interns and volunteers at Estacion Biologica catch a few hummingbirds in every mist-netting activity. The hummingbirds require a slightly different treatment from other birds, because they are extremely small and fragile. At the slightest sign of weakness, we give a hummingbird water, by dabbing a drop onto the bill or submerging the bill into a capful of water. The bird may suffer easily from dehydration because of its extremely rapid metabolism and small size, so we must be observing it at all times to ensure it is strong and capable of returning to its normal routine when we release it. Hummingbirds, unlike some other bird species, don't tend to struggle when held by our technicians, and when we release them, they may sit for a few seconds before deciding to fly away.
hummingbirds
The Steely-vented Hummingbird (Amazilia saucerrottei) is difficult to distinguish from the Blue-tailed Hummingbird (Amazilia cyanura) when observed at a distance. This bird was identified by the lack of rufous secondary feathers in the wing. Photo by Wendy van Kooten. 
Two nearly identical hummingbird species are found in Laguna de Apoyo Nature Reserve: The Steely-vented Hummingbird, Amazilia saucerrottei, and the Blue-tailed Hummingbird, Amazilia cyanura. The Steely-vented Hummingbird, furthermore, has a disjunct range, with part in southwestern Nicaragua and northwestern Costa Rica, and another part in northern South America. As a result, the disjunct populations may very well qualify as different species, but more taxonomic study will need to be done on the birds throughout the range to make a conclusion.
Amazilia cyanura
The Blue-tailed Hummingbird has somewhat  more rufous coloration than the Steely-vented Hummingbird. Both species are found in Laguna de Apoyo Nature Reserve. Here, our technicians comparing the bird with one of the field guides. Photo by Wendy van Kooten. 
 We are catching both species in our mist netting studies. Our technicians must scrutinize each bird carefully, especially the secondary wing feathers to determine species.
Amazilia cyanura
Blue-tailed Hummingbird (Amazilia cyanura) in Laguna de Apoyo Nature Reserve, Nicaragua. Photo by Wendy van Kooten.
 Holding these small, delicate creatures is an unforgettable experience. Their legs are much too short to hold in the traditional photographer's grip. The holder invariably feels a concern for harming the bird in the hand, but with experience, one can learn how to manipulate a hummingbird carefully and effectively, getting all the information we seek from it and then releasing it to return to its normal life without harm.
Amazilia cyanura Nicaragua
Hummingbird feathers have a unique iridescence which make the birds especially attractive. Photo by Wendy van Kooten.
Several of the hummingbird species found in Laguna de Apoyo Nature Reserve are members of the genus Amazilia. These birds are medium to large size, with plumages similar between males and females. These birds don't only drink nectar for their sustenance-they consume a large quantity of tiny arthropods which they catch on the wing: spiders, midges, mosquitoes, most of which escape our view, but not that of the hummingbird. The consumed animals provide protein not found in most nectars.

hummingbirds Nicaragua
The Blue-tailed Hummingbird glistens in sunlight. Photo by Wendy van Kooten.
Our bird studies are performed by students performing internships and volunteers. No prior experience is necessary, only a long-term commitment to undergo training and collaborate with our team for several months. The rewards of having the opportunity to hold and handle many hummingbirds and other species of birds, to gather information about them to promote the protection of these birds and their habitats, is a lifetime of golden memories of the experience.
Amazilia cyanura
Rusty coloration on the rump feathers is evident on the Blue-tailed Hummingbird (Amazilia cyanura). Photo by Wendy van Kooten.
We have learned a few things about the hummingbirds of Laguna de Apoyo Nature Reserve, but there is more to learn here. For instance, what are the most important associations between plants and each hummingbird species? How do different species share resources for feeding and nesting? Are any species restricted to certain parts of the Laguna de Apoyo Nature Reserve? 
hummingbird Nicaragua
Rufous secondary feathers can be seen on this Blue-tailed Hummingbird (Amazilia cyanura), captured in Laguna de Apoyo Nature Reserve. Photo by Wendy van Kooten. 
We never tire of seeing hummingbirds, so we are at the right place, because there are plenty of them here. Nonetheless, we are concerned for them, because Laguna de Apoyo Nature Reserve is facing constant threats to the habitats for wildlife such as hummingbirds. Firewood cutting, forest fires, and agriculture are all common activities. Foreigners have recently "found" Laguna de Apoyo as a great place to build a vacation home, too, and some people have cleared land to build more housing inside the Apoyo volcanic crater. How do these activities affect our hummingbirds?
Blue-tailed Hummingbird
From this angle, rufous secondary plumage can be seen in both wings on this Blue-tailed Hummingbird (Amazilia cyanura). Photo by Wendy van Kooten.
Canivet's Emerald
The male Canivet's Emerald (Chlorostilbon canivetti) is the greenest of the hummingbirds in Laguna de Apoyo Nature Reserve. 
A common hummingbird throughout Laguna de Apoyo Nature Reserve is Canivet's Emerald, Chlorostilbon canivetii. The male and female both tend to wag their tails forward and backward under their bodies while hovering around flowers or plucking tiny spiders from webs. The brilliant green especially of the male make its name seem so appropriate.
Canivet's Emerald
Male Canivet's Emerald is inspected after trapping during our mist net study in Laguna de Apoyo Nature Reserve, Nicaragua. Photo by Wendy van Kooten.
Canivet's Emerald is found in all the areas of the reserve, including in yards, as long as there are flowers and some shade nearby. One can often find them flying very close, as they apparently have less fear of people than other hummingbirds in the area. It is not uncommon to get a very close view of one moving close to inspect the colors of one's clothing.
hummingbird
A male Canivet's Emerald (Chlorostilbon canivetii) in the hand. Photo by Wendy van Kooten.
The Canivet's Emerald makes a cup nest, only a few centimeters in diameter, from spider webs and very small bits of vegetation, often close to the ground on a low bush. They are susceptible to domesticated cats, as a result, and their populations in Laguna de Apoyo Nature Reserve may be suppressed because of the large number of cats owned by foreigners inside the reserve boundaries.
Hummingbirds Nicaragua
The brilliant iridescence of the male Canivet's Emerald is especially strong in the hand. Photo by Wendy van Kooten.
Now that we at FUNDECI/GAIA have learned some things about the hummingbirds in Laguna de Apoyo Nature Reserve, we would like to pose some more subtle questions. How do we go about protecting the hummingbirds of our area? What are their needs and what can we do to make their populations in the wild more secure against the encroachment of man?
Amazilia rutila
The Cinnamon Hummingbird (Amazilia rutila) is very common in Laguna de Apoyo Nature Reserve, Nicaragua. Photo by Wendy van Kooten.
The most common hummingbird, particularly in fragmented areas such as around houses and agricultural plots, is the Cinnamon Hummingbird (Amazilia rutila). It is larger than the other hummingbirds seen in our area. Its rufous throat, breast and tail set it apart from all the others, making it easily identified. This species is also found in green spaces in Managua and other urban centers, and it occupies a wide range of habitats.
Amazilia rutila
The Cinnamon Hummingbird is larger than other hummingbirds in Laguna de Apoyo Nature Reserve.  Photo by Wendy van Kooten. 
The Cinnamon Hummingbird has a surprisingly wide bill, possibly an adaptation to increase its capacity to capture flying insects on the wing. This versatile bird is the hummingbird most people know from their own yards. 
Heliomaster constantii
The Plain-capped Starthroat (Heliomaster constantii) is nearly as large as the CInnamon Hummingbird, but its white breast ahd tail feathers, malar streak, and very long bill distinguish it easily. Photo by Wendy van Kooten.
Hummingbirds are obviously specialists for drinking flower nectar. Within the hummingbirds can be found several more refined specialist forms. The Plain-capped Starthroat (Heliomaster constantii), for instance, sports a much longer bill than any other hummingbird in Laguna de Apoyo Nature Reserve, obviously adapted for reaching nectar in certain flowers which would be unavailable for others. Its role in pollenation must be important for certain plants in our area, and we would like to make further investigations into this topic.
hummingbird Nicaragua
This young Plain-capped Starthroat already has several metallic reddish feathers on its gorget. Photo by Wendy van Kooten.
The Plain-capped Starthroat is the only resident bird of our area with a reddish throat, although the migratory Ruby-throated Hummingbird (Archilochus colubris) males also have brightly colored gorgets. Interestingly, most of the Ruby-throated Hummingbirds found in our area are not adult males.
Plain-capped Starthroat
The metallic colors on the gorget feathers of the Plain-capped Starthroat vary from gold to red. Photo by Wendy van Kooten.
The Plain-capped Starthroat is found in dry habitats from Arizona into western Costa Rica. They are found throughout the Pacific region of Nicaragua.
Heliomaster constantii Nicaragua
Bright colors show on the gorget of this young Plain-capped Starthroat. Photo by Wendy van Kooten.
Would you like to help us study the hummingbirds of Laguna de Apoyo Nature Reserve? If you would like to learn about hummingbirds, or if you would like to spend a day of "hummingbird tourism", we are happy to work with you. If you can not volunteer for a period, visit and make a day trip to see our bird studies in action, go birdwatching with us, or consider making a donation to our project. Please contact us! 
hummingbird
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