Association between Plant Canopies and the Spatial Patterns of Infiltration in Shrubland and Grassland of the Chihuahuan Desert, New Mexico

Ecosystems ◽  
2003 ◽  
Vol 6 (2) ◽  
pp. 185-196 ◽  
Author(s):  
Eric W. Bhark ◽  
Eric E. Small
Keyword(s):  
New Mexico ◽  
Spatial Patterns ◽  
Chihuahuan Desert ◽  
Plant Canopies

scholarly journals Do Some Northern Goshawk Nest Areas Consistently Fledge More Young Than Others?

The Condor ◽  
2002 ◽  
Vol 104 (2) ◽  
pp. 343-352
Author(s):  
Erica L. McClaren ◽  
Patricia L. Kennedy ◽  
Sarah R. Dewey
Keyword(s):  
British Columbia ◽  
New Mexico ◽  
Spatial Patterns ◽  
Vancouver Island ◽  
Breeding Habitat ◽  
Habitat Characteristics ◽  
Accipiter Gentilis ◽  
Uinta Mountains ◽  
Northern Goshawk ◽  
Jemez Mountains

Abstract In long-lived raptors, research suggests that some nest areas consistently fledge more young than others, with the majority of young in the population being produced by a few females. If this claim were true for Northern Goshawk (Accipiter gentilis) populations, it would benefit land managers to identify high-quality goshawk breeding habitat. We examined whether the number of young fledged varied spatially among Northern Goshawk nest areas within three study areas where long-term reproductive data from goshawks were available: (1) Vancouver Island, British Columbia; (2) Jemez Mountains, New Mexico; and (3) Uinta Mountains, Utah. A mixed-model ANOVA indicated there was minimal spatial variation in nest productivity among nest areas within the three study locations. Rather, nest areas exhibited high temporal variability in nest productivity within each study area. These results suggest that temporal patterns such as local weather and fluctuating prey populations influenced Northern Goshawk reproduction more than spatial patterns such as habitat characteristics. Nest productivity may inadequately reflect spatial patterns in goshawk reproduction and so it would be premature to assume that habitat quality for Northern Goshawks was equal among nest areas within these study areas. Future research should examine spatial variability among nest areas in adult and juvenile survival rates to gain a complete picture of population responses to habitat change. ¿Se Producen Consistentemente Más Volantones de Accipiter gentilis en Algunos Sitios de Anidación que en Otros? Resumen. Investigaciones en aves rapaces longevas sugieren que consistentemente más polluelos empluman en algunos sitios de anidación que en otros y que la mayoría de los juveniles en la población son producidos por unas pocas hembras. Si esto fuera cierto para poblaciones de Accipiter gentilis, ayudaría a las autoridades ambientales a identificar hábitat reproductivo de alta calidad para la especie. Evaluamos si el número de polluelos emplumados varió espacialmente entre sitios de anidación de A. gentilis dentro de tres áreas de estudio para las cuales había datos reproductivos de largo plazo disponibles: (1) Vancouver Island, British Columbia; (2) Jemez Mountains, New Mexico; y (3) Uinta Mountains, Utah. Un modelo mixto de análisis de varianza indicó que la variación espacial en la productividad de los nidos entre sitios de anidación dentro de las tres áreas de estudio fue mínima. En cambio, los sitios de anidación presentaron una alta variabilidad temporal en la productividad de los nidos dentro de cada área de estudio. Estos resultados sugieren que los patrones temporales como el clima y las fluctuaciones de las poblaciones de presas influencian la reproducción de A. gentilis más que los patrones espaciales como las características del hábitat. La productividad de los nidos puede reflejar inadecuadamente los patrones espaciales de la reproducción de A. gentilis, de modo que sería prematuro suponer que la calidad de hábitat fue igual entre los sitios de anidación dentro de las áreas de estudio. Para tener una perspectiva completa de la respuesta de las poblaciones a cambios en el ambiente, investigaciones futuras deberían examinar la variabilidad espacial entre sitios de anidación en las tasas de supervivencia de aves adultas y juveniles.

Modeling Habitat Suitability for Small Mammals in Chihuahuan Desert Foothills of New Mexico

1998 ◽  
Vol 62 (3) ◽  
pp. 989 ◽  
Author(s):  
Eric E. Jorgensen ◽  
Stephen Demarais ◽  
Scott M. Sell ◽  
Scott P. Lerich
Keyword(s):  
New Mexico ◽  
Small Mammals ◽  
Habitat Suitability ◽  
Chihuahuan Desert

scholarly journals Impacts of chronic wasting disease on a low density mule deer (Odocoileus hemionus) population in the San Andres Mountains, Chihuahuan Desert, New Mexico

2019 ◽  
Vol 35 ◽  
pp. 1-11
Author(s):  
Louis C. Bender ◽  
Cristina L. Rodden ◽  
Pat Mathis ◽  
Mara E. Weisenberger ◽  
Octavio C. Rosas Rosas ◽  
...  
Keyword(s):  
New Mexico ◽  
Chronic Wasting Disease ◽  
Chihuahuan Desert ◽  
Mule Deer ◽  
Odocoileus Hemionus ◽  
Low Density ◽  
Wasting Disease ◽  
San Andres

DIET OF EIGHT SPECIES OF LIZARDS FROM GRANITE GAP, HIDALGO COUNTY, NEW MEXICO

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Dawei Han ◽  
Alyssa Johnson ◽  
Laura Ney ◽  
Whitney Oberman ◽  
Madison Pugh ◽  
...  
Keyword(s):  
New Mexico ◽  
Chihuahuan Desert ◽  
Stomach Contents ◽  
Diet Breadth ◽  
Lizard Species ◽  
Urosaurus Ornatus ◽  
Uta Stansburiana ◽  
Hidalgo County ◽  
Texas Border ◽  
Desert Scrub

Abstract Granite Gap is a desert scrub habitat located in the Chihuahuan Desert in southwestern New Mexico about 200 km from the Texas border. In May 2016, we collected specimens of eight lizard species, six of which range into Texas: Callisaurus draconoides, Cophosaurus texanus, Uta stansburiana, Urosaurus ornatus, Gambelia wislizenii, and Aspidoscelis sonorae (a parthenogenetic species), plus two species not found in Texas: Sceloporus clarkii and Aspidoscelis tigris. We analyzed stomach contents of the preserved lizards and computed diet breadth and overlap for each. All lizard species consumed arthropods only. Considering the entire sample, there was a significant correlation between lizard snout-vent length (SVL) and total volume of arthropods consumed, and between lizard SVL and mean volume per prey item, but not between lizard SVL and number of arthropods consumed. This suggests larger lizards did not consume more arthropods than smaller lizards, but they did consume larger ones. Overall, A. sonorae was the most specialized lizard species at Granite Gap whereas C. texanus seemed to be the most generalized owing to its high numeric and high volumetric diet breadth. The dietary overlap data suggest there were two groups of lizards at Granite Gap: one that consumes a large number and volume of termites (Callisaurus, Cophosaurus, and the two species of Aspidoscelis) and the other that consumes a large number and volume of ants (Uta, Urosaurus, small Sceloporus) plus cicadas when lizard size is large enough to consume them (large Sceloporus and Gambelia).

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