Ecological Meltdown in Predator-Free Forest Fragments
- J. Terborgh, L. Lopez, Luis Balbas
- Environmental ScienceScience
- 30 November 2001
The densities of seedlings and saplings of canopy trees are severely reduced on herbivore-affected islands, providing evidence of a trophic cascade unleashed in the absence of top-down regulation.
The Island Syndrome in Rodent Populations
It is suggested that the intensity or absense of density-depressing factors is primarily responsible for the area effect and serves as a principal factor differentiating island from mainland populations of rodents.
Small mammals on Massachusetts islands: the use of probability functions in clarifying biogeographic relationships
- G. Adler, Mark L. Wilson
- Environmental ScienceOecologia
- 1 May 1985
Logistic regression has several advantages over linear discriminant function analysis, and it is suggested that it may be useful in other ecological studies and in the preservation of endangered species.
Fruit and Seed Exploitation by Central American Spiny Rats, Proechimys semispinosus
- G. Adler
- Biology
- 1 December 1995
Fruits from trees in the Moraceae were consumed entirely, including the seeds, and spiny rats preferentially ate seeds of several large‐seeded species and primarily peeled off the mesocarp or aril.
Canine visceral leishmaniasis: dog infectivity to sand flies from non-endemic areas.
- B. Travi, C. Ferro, H. Cadena, J. Montoya-Lerma, G. Adler
- MedicineResearch in Veterinary Science
- 1 February 2002
It is hypothesised that the presence of infected dogs in areas where L shannoni or L youngi occur could initiate new endemic cycles of VL in both South and North America.
Detection of Leishmania (Viannia) braziliensis complex in wild mammals from Colombian coffee plantations by PCR and DNA hybridization.
- B. Alexander, C. Lozano, D. Barker, S. McCann, G. Adler
- BiologyActa Tropica
- 1 March 1998
Dynamics of Leishmania chagasi infection in small mammals of the undisturbed and degraded tropical dry forests of northern Colombia.
- B. Travi, Y. Osorio, M. Becerra, G. Adler
- MedicineTransactions of the Royal Society of Tropical…
- 1 May 1998
Diversity of arbuscular mycorrhizal fungi across a fragmented forest in Panama: insular spore communities differ from mainland communities
It is suggested that the convergence of common species found in AMF spore communities in soils of similar forest sizes was a result of forest fragmentation, and may result in differential survival of tree seedlings regenerating on islands versus mainland.
Impacts of Resource Abundance on Populations of a Tropical Forest Rodent
- G. Adler
- Biology
- 1998
Test populations of Proechimys semispinosus (Central American spiny rat) were provisioned with fresh native fruits for 6 mo to test the hypothesis that populations of frugivorous rodents in seasonal Neotropical forests are not limited by food during the season of greatest resource abundance, and increased densities were due to increased production and recruitment of young.
Susceptibility of spiny rats (Proechimys semispinosus) to Leishmania (Viannia) panamensis and Leishmania (Leishmania) chagasi.
- B. Travi, L. Arteaga, A. P. Leon, G. Adler
- MedicineMemórias do Instituto Oswaldo Cruz
- 1 September 2002
Transient infectivity to vectors of spiny rats infected with L. panamensis, combined with population characteristics, e.g., abundance, exploitation of degraded habitats and high reproductive rates, could make them epidemiologically suitable reservoirs.
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