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Evaluación de salud del piquero de patas azules (Sula nebouxii excisa) a través de hematología, bioquímica, gases sanguíneos y examen físico en las Islas Galápagos

El piquero de patas azules (Sula nebouxii excisa) es una especie emblemática y endémica de las Islas Galápagos. Aunque ha sido ampliamente estudiado por su comportamiento y biología reproductiva, poco se conoce sobre su salud en estado silvestre. Este tipo de información es crucial para entender cómo factores ambientales pueden afectar su bienestar, especialmente en un contexto de cambio climático y disminución de presas. El reciente estudio busca aportar datos de referencia sobre la salud de la especie, lo cual puede contribuir a estrategias de conservación.

El objetivo de esta investigación fue evaluar y comparar parámetros de salud en piqueros de patas azules durante dos temporadas reproductivas: junio de 2017 y julio de 2022, en la Isla Seymour Norte. Se capturaron 60 aves desde sus nidos para realizar exámenes físicos, registrar su estado reproductivo, y tomar muestras de sangre. Se midieron valores como hematocrito, hemoglobina, electrolitos, glucosa, y otros indicadores bioquímicos usando un analizador portátil. Además, se registró el número de crías presentes en los nidos.

Los resultados determinaron que en 2022, los piqueros presentaron valores elevados en varios indicadores sanguíneos respecto a 2017. Las hembras fueron más grandes y superaron a los machos en la mayoría de los parámetros, salvo el nitrógeno ureico, que fue más alto en ellos. También se observó un mayor éxito reproductivo: 29 de 30 nidos con crías frente a solo 5 en 2017. No se detectaron parásitos y todas las aves presentaron buena salud.

Esta investigación proporciona datos valiosos sobre la salud del piquero de patas azules y evidencia mejoras en su condición general y éxito reproductivo en 2022 frente a 2017. Estos resultados pueden estar relacionados con variaciones ambientales o disponibilidad de alimento, aunque se requieren más estudios para confirmarlo. Esta información de referencia sobre su salud es esencial para monitorear el estado de la especie y aplicar métodos de conservación.

Lee el artículo completo aquí: https://bit.ly/3ECUKzK

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In 2022, the Galapagos Science Center (GSC) and the broader UNC & USFQ Galapagos Initiative will celebrate its 10th Anniversary. We are proud to announce the World Summit on Island Sustainability scheduled to be held on June 26–30, 2022 at the Galapagos Science Center and the Community Convention Center on San Cristobal Island.

The content of the World Summit will be distributed globally through social media and results documented through papers published in a book written as part of the Galapagos Book Series by Springer Nature and edited by Steve Walsh (UNC) & Carlos Mena (USFQ) as well as Jill Stewart (UNC) and Juan Pablo Muñoz (GSC/USC). The book will be inclusive and accessible by the broader island community including scientists, managers, residents, tourists, and government and non-government organizations.

While the most obvious goal of organizing the World Summit on Island Sustainability is to celebrate the 10th Anniversary of the GSC and the UNC-USFQ Galapagos Initiative, other goals will be addressed through special opportunities created as part of our operational planning of the World Summit.

For instance, we seek to elevate and highlight the Galapagos in the island conservation discourse, seeking to interact with other island networks in more obvious and conspicuous ways to benefit the Galapagos Islands, the UNC-USFQ Galapagos Initiative, and the world. We will seize the opportunity to further develop the I2N2 – International Islands Network-of-Networks. Further, we wish to highlight and emphasize multiple visions of a sustainable future for the Galapagos Islands and we cannot do this alone. Therefore, engaging the Ecuadorian Ministry of Environment, the Ministry of Tourism, the Government Council of Galapagos, the Galapagos National Park, and local Galapagos authorities, including government and non-government organizations and local citizen groups, is imperative.

The Galapagos Science Center on San Cristobal Island, Galapagos

Borrowing from Hawaii’s and Guam’s Green Growth Program and the Global Island Partnership, we wish to examine existing global programs that emphasize island sustainability and their incorporation into life, policies, and circumstances in the Galapagos Islands. We will also seek to enhance our connections with the institutional members of our International Galapagos Science Consortium and expand the Consortium through the recruitment of other member institutions. We will also work to benefit islands and their local communities by working with citizen groups as well as important NGOs who seek to improve the natural conditions in the Galapagos and diminish the impact of the human dimension on the future of Galapagos’ ecosystems.

Lastly, we will use the World Summit to benefit UNC & USFQ and our constituencies through a strong and vibrant communication plan about the World Summit, creating corporate relationships as sponsors, identifying funding goals through donors, and benefiting our study abroad program for student engagement in the Galapagos Islands. We plan to develop and issue a Galapagos Sustainability Communique after the World Summit that includes the vision and insights of all its participants for a sustainable Galapagos with applicability to global island settings.

We are eager to hear your perspective and have you join us at the World Summit on Island Sustainability!